HomeMy WebLinkAboutCIRI-ANC-CAEC East High School 2012-EEENERGY AUDIT FINAL REPORT
East High School
4025 East Northern Lights Boulevard
Anchorage, AK 99508
p (907) 742-2100
AkWarm ID No. CIRI-ANC-CAEC-15
800 F Street
Anchorage, AK 99501
p (907) 276-6664 f (907) 276-5042
Contact: Walter Heins, PE, CCP, CxA, CEA
32215 Lakefront Dr.
Soldotna, Alaska 99669
p (907) 260-5311
Contact: Jerry P. Herring, PE, CEA
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 i AkWarm No. CIRI-ANC-CAEC-15
Contents
I. Executive Summary .................................................................................................................. 1
II. Introduction .............................................................................................................................. 4
III. Energy Audit Process ............................................................................................................. 5
IV. Method of Analysis ................................................................................................................. 6
V. Building Description ................................................................................................................ 7
V.I SCHOOL ARCHITECTURAL DESCRIPTION .............................................................................................................. 8
V.II MECHANICAL DESCRIPTION ............................................................................................................................... 9
V.III ELECTRICAL DESCRIPTION ................................................................................................................................ 9
VI. Historic Energy Consumption and Cost............................................................................. 11
VI.I ELECTRICAL CONSUMPTION DATA ................................................................................................................... 11
VI.II NATURAL GAS CONSUMPTION DATA .............................................................................................................. 11
VI.III OVERALL ENERGY CONSUMPTION DATA ....................................................................................................... 11
VII. Equipment Inventory and Photo Survey .......................................................................... 13
VIII. Energy Conservation Measures ....................................................................................... 14
VIII.I SCHOOL ENERGY CONSERVATION MEASURES ............................................................................................... 14
VIII.II ADMINISTRATIVE CONTROLS FOR ENERGY CONSERVATION AND OPTIMIZATION ......................................... 22
Appendices
Appendix A – Energy Benchmark Data
Appendix B – AkWarm Commercial Reports
Appendix C – Major Equipment List
Appendix D – Energy Conservation Measures
Appendix E – Site Survey Photos
Appendix F – Thermographic Photos
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Abbreviations
AHFC Alaska Housing & Finance Corporation
ARRA American Recovery & Reinvestment Act
ASD Anchorage School District
ASHRAE American Society of Heating, Refrigeration, and Air-Conditioning Engineers
BTU British Thermal Unit
CCF One Hundred Cubic Feet
CFM Cubic Feet per Minute
DDC Direct Digital Control
ECI Energy Cost Index
ECM Energy Conservation Measure
EIFS Exterior Insulation & Finish System
EPDM Ethylene Propylene Diene Monomer
EUI Energy Utilization Index
F Fahrenheit
HP horsepower
HPS High Pressure Sodium
HVAC Heating, Ventilating, and Air-Conditioning
in inch(es)
IPLC Integrated Power & Load Circuit
kWh kilowatt-hour
LED Light-Emitting Diode
O&M Operations & Maintenance
sf square feet
SIR Savings-to-Investment Ratio
V Volts
W Watts
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List of Figures
Fig. 1 – Energy Audit Clients ....................................................................................................................... 1
Fig. 2 – Energy Benchmark Data .................................................................................................................. 1
Fig. 3 – East High School Location in Anchorage, Alaska – Google Maps ................................................. 4
Fig. 4 – East High School – Google Maps .................................................................................................... 4
Fig. 5 – East High School Key Plan – 2006 Renovation Drawings .............................................................. 7
List of Tables
Table 1 - Recommended Energy Conservation Measures, East High School .............................................. 2
Table 2 - Building History ............................................................................................................................ 7
Table 3 - Energy Cost and Consumption Data ........................................................................................... 11
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REPORT DISCLAIMER
Privacy
The information contained within this report, including any attachment(s), was produced under contract to Alaska
Housing Finance Corporation (AHFC). IGAs are the property of the State of Alaska, and may be incorporated into
AkWarm-C, the Alaska Retrofit Information System (ARIS), or other state and/or public information systems.
AkWarm-C is a building energy modeling software developed under contract by AHFC.
Limitations of Study
This energy audit is intended to identify and recommend potential areas of energy savings, estimate the value of the
savings, and provide an opinion of the costs to implement the recommendations. This audit meets the criteria of a
Level 2 Investment Grade Audit (IGA) per the American Society of Heating, Refrigeration, Air-conditioning
Engineers (ASHRAE) and the Association of Energy Engineers (AEE), and is valid for one year. The life of the IGA
may be extended on a case-by-case basis, at the discretion of AHFC. In preparing this report, the preparers acted
with the standard of care prevalent in this region for this type of work. All results are dependent on the quality of
input data provided. Not all data could be verified and no destructive testing or investigations were undertaken.
Some data may have been incomplete.
This report is not intended to be a final design document. Any modifications or changes made to a building to realize
the savings must be designed and implemented by licensed, experienced professionals in their fields. Lighting
upgrades should undergo a thorough lighting analysis to assure that the upgrades will comply with State of Alaska
Statutes as well as Illuminating Engineering Society (IES) recommendations. All liabilities for upgrades, including
but not limited to safety, design, and performance are incumbent upon the professional(s) who prepare the design.
Coffman Engineers, Inc (CEI) and Central Alaska Engineering Company (CAEC) bear no responsibility for work
performed as a result of this report.
Financial ratios may vary from those forecasted due to the uncertainty of the final installed design, configuration,
equipment selected, installation costs, related additional work, or the operating schedules and maintenance provided
by the owner. Furthermore, many ECMs are interactive, so implementation of one ECM may impact the
performance of another ECM. CEI and CAEC accept no liability for financial loss due to ECMs that fail to meet the
forecasted financial ratios.
The economic analyses for the ECMs relating to lighting improvements are based solely on energy savings.
Additional benefits may be realized in reduced maintenance cost, deferred maintenance, and improved lighting
quality. The new generation lighting systems have significantly longer life leading to long term labor savings,
especially in high areas like Gyms and exterior parking lots. Lighting upgrades displace re-lamping costs for any
fixtures whose lamps would otherwise be nearing the end of their lifecycle. This reduces maintenance costs for 3-7
years after the upgrade. An overall improvement in lighting quality, quantified by numerous studies, improves the
performance of students and workers in the built environment. New lighting systems can be designed to address all
of the above benefits.
US Government Disclaimer
This material is based upon work supported by the Department of Energy under Award Number DE-EE0000095.
This report was prepared as an account of work sponsored by an agency of the United States Government. Neither
the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or
implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any
information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned
rights. Reference herein to any specific commercial product, process, or service by trade name, trademark,
manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring
by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not
necessarily state or reflect those of the United States Government or any agency thereof.
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I. Executive Summary
This report presents the findings of an energy audit conducted at East High School as part of a contract
for:
Alaska Housing Finance Corporation
Contact: Rebekah Luhrs
4300 Boniface Parkway
Anchorage, AK 99510
Email: rluhrs@ahfc.us
Anchorage School District
Contact: Calvin Mundt
1301 Labar Street
Anchorage, AK 99515-3517
Email: mundt_calvin@asdk12.org
Fig. 1 – Energy Audit Clients
This audit was performed using American Recovery and Reinvestment Act (ARRA) funds to promote the
use of innovation and technology to solve energy and environmental problems in a way that improves the
State of Alaska’s economy. This can be achieved through the wiser and more efficient use of energy.
The average January 2009- December 2010 documented annual utility costs at this facility are as follows:
Electricity $398,165
Natural Gas $269,861
Total $668,026
January 2009-December 2010 Energy Utilization Index (EUI) = 116.6 kBtu/sf
January 2009-December 2010 Energy Cost Index = 1.85 $/sf
Fig. 2 – Energy Benchmark Data
Energy Conservation Measures (ECMs) calculated to be cost effective are shown below in the Executive
Summary Table with the energy analyst’s best opinion of probable cost, savings, and investment returns.
Be aware that the measures are not additive because of the interrelation of several of the measures. The
cost of each measure for this level of auditing is ± 30% until detailed engineering, specifications, and hard
proposals are obtained. See section VIII for detailed descriptions of all cost effective ECMs.
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Table 1 - Recommended Energy Conservation Measures, East High School
Executive Summary – Recommended ECMs
East High School
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
EHS-1a Refrigerators Replace residential &
light commercial
refrigerators/freezers
older than 5 years old
-- - <10
EHS-2 Setback
Thermostat:
School
Implement a Heating
Temperature Unoccupied
Setback to 60.0 deg F for
the School and Physical
Education Bldg (not
including the pool)
$40,904 $4,000 130 0.1
EHS-3 Vending
Machines
Provide occupancy sensor
controls.
$3,170 $4,500 10.8 1.4
EHS-4 Lighting:
Corridors
Replace or retrofit light
fixtures to eliminate T12
lamps. Provide occupancy
sensor controls.
$19,206 $106,350
2.8 5.5
EHS-5b HVAC And
DHW
Install 2 exhaust stack
economizers. Basis of
ECM is Enervex IPVB-
ECO 500.
$7,094 $70,000 1.63 9.9
EHS-6 Lighting:
Gym, locker
rooms
Replace or retrofit light
fixtures to eliminate T12
lamps. Provide occupancy
sensor controls.
$9,823 $98,750 1.5 10.1
EHS-7 Lighting:
Offices
Replace or retrofit light
fixtures to eliminate T12
lamps. Provide occupancy
sensor controls.
$1,914 $20,700 1.4 10.8
EHS-8b,c HVAC And
DHW
Replace One Gas Only
Boiler with 2 New High
Efficiency Boilers
$21,896 $360,000 1.34 16.4
EHS-9 Exterior
Door: Black
Metal Doors
Remove existing door and
install standard pre-hung
U-0.16 insulated door,
including hardware.
$437 $7,379 1.31 16.9
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Executive Summary – Recommended ECMs
East High School
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
EHS-10 Lighting:
Classrooms
Replace or retrofit light
fixtures to eliminate T12
lamps. Provide occupancy
sensor control in all
classrooms. Provide day
light sensor control in
select classrooms.
$32,441 $378,650 1.3 11.7
EHS-11 Lighting:
Storage and
Utility
Spaces
Replace or retrofit light
fixtures to eliminate T12
lamps. Provide occupancy
sensor controls.
$2,676 $36,400 1.1 13.6
EHS-12 Air
Tightening
Perform air sealing to
reduce air leakage by
20%.
$11,485 $100,000 1.03 8.7
Notes:
a Due to advances in refrigerators in the previous 5 years, new Energy Star refrigerators are much more efficient and
result in viable energy savings.
b ECM-5 and ECM-8 are mutually exclusive and only one should be implemented. The ECMs are not intended to
be implemented concurrently. For example, if ECM-8 is chosen and new high efficiency boilers are installed, then
ECM-5 should not be completed because installing exhaust stack economizers is no longer applicable.
c ECM item was modeled with separate AkWarm model and as a result, the item is not an additive measure and is
not included in the final totals.
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II. Introduction
This energy audit was conducted at East High School (EHS) for AHFC and the Anchorage School
District. The school is a 361,698 square foot (sf) campus that includes classrooms, locker rooms,
restrooms, administrative offices, a library, a gymnasium, and a pool. Although the 19,130 sf pool is
operated separately by the Municipality of Anchorage, the pool is included in this audit because the
energy consumption data for the pool is included in the benchmarking data. The location of the school is
shown in the following regional and overhead images. The energy audit was conducted in order to
evaluate areas and equipment where energy savings can be realized. The savings are then compared to a
baseline and evaluated for reasonable project financial ratios and payback.
Fig. 3 – East High School Location in Anchorage, Alaska – Google Maps
Fig. 4 – East High School – Google Maps
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III. Energy Audit Process
Prior to visiting the school, the first task was to collect and review two years of utility data for electricity
and natural gas usage. This information was used to analyze operational characteristics, calculate energy
benchmarks for comparison to industry averages, estimate savings potential and establish a baseline to
monitor the effectiveness of implemented energy conservation measures. A spreadsheet was used to enter,
sum, and calculate benchmarks and to graph energy use information (see Appendix A). The primary
benchmark calculation used for comparison and baseline data is the Energy Utilization Index, or EUI (see
Section VI).
After gathering the utility data and calculating the EUI, the next step in the audit process was to review
the architectural and engineering drawings to develop a building profile which documented building age,
type, usage, and major energy consuming equipment or systems such as lighting, Heating, Ventilating,
and Air Conditioning (HVAC), water heating, refrigeration, snow-melt, and etc. The building profile is
utilized to generate, and answer, all possible questions regarding the facility’s energy usage. These
questions were then compared to the energy usage profiles developed during the utility data gathering
step. After this information was gathered, the next step in the process was to conduct a site survey.
A site survey was completed on December 19, 20 and 21 of 2011. The audit included inspecting the
building systems that impact energy consumption and answering questions from the preliminary review
of the school. The on-site contact during the investigation was Mr. Bob Halpin of the ASD Maintenance
Department1. The following information was also collected while on site: occupancy schedules, O&M
practices, building energy management program, and other information that has an impact on energy
consumption.
The following energy audit includes an evaluation of the information gathered, the researching of possible
conservation opportunities, organizing the energy audit into a comprehensive report, and making ECM
recommendations for mechanical, electrical, and building envelope improvements.
1 Mr. Bob Halpin, (907) 348-5212 (office), (907) 632-2884 (mobile)
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IV. Method of Analysis
Having completed the preliminary energy audit tasks, Coffman Engineers, Inc., (CEI) conducted a site
survey. The site survey provides critical input in deciphering where energy savings opportunities exist
within a facility. The audit team from CEI walked the entire site to inventory and investigate the building
envelope and major equipment, including: HVAC, water heating, lighting, and equipment located in
shops, kitchens, offices, and classrooms. An understanding of how the equipment is used is determined
during the site survey.
The collected data was entered into AkWarm Commercial™ software, an energy calculating program for
buildings. The data was processed by AkWarm to model a baseline from which ECMs could be
considered. The model was compared to actual utility costs to ensure the quality of the baseline and
proposed energy modeling performed by AkWarm. The recommended ECMs focus on the building
envelope, HVAC, lighting, water heating, and other electrical measures that will reduce annual energy
consumption.
ECMs are evaluated based on building use and processes, local climate conditions, building construction
type, function, operational schedule, existing conditions, and foreseen future plans. When new equipment
is proposed, energy consumption is calculated based on the manufacturer’s cataloged information. Energy
savings are calculated by AkWarm.
Implementation of more than one ECM often affects the savings of other ECMs. The savings may in
some cases be relatively higher for an ECM implemented individually than when that ECM is just one of
multiple recommended ECMs. For example, implementing reduced operating schedules of inefficient
lighting systems may result in a given savings. Also implementing a more efficient lighting system will
add to the savings, but less than the efficient lighting would alone because there is less energy to be saved
when the lights are on a reduced operating schedule. Thus, if multiple ECM’s are recommended, the
combined savings are calculated and identified appropriately in groups.
In Appendix D, Energy Conservation Measures, the simple lifetime calculation is shown for each ECM,
which is based on the typical life of the equipment being replaced or altered. The energy savings are
extrapolated throughout the simple lifetime of the ECM. The total energy savings is calculated as the total
lifetime multiplied by the yearly energy savings.
The cost savings and installation costs are used to calculate simple payback2 and the Savings to
Investment Ratio3 (SIR). These are listed in Appendix D and summarized in the Executive Summary
Table of this report. The SIR is calculated as a ratio by dividing the break even cost by the initial installed
cost. Cost savings is calculated based on the historical energy costs for the building. Installation costs
include labor and equipment to evaluate the initial investment required to implement an ECM. These are
applied to each recommendation with simple paybacks calculated. The energy analyst’s opinions of
probable cost are garnered from RS Means Cost Data, other industry publications, and local contractors
and suppliers. In addition, where applicable, maintenance cost savings are estimated and applied to the net
savings.
2 The simple payback is based on the years that it takes for the net savings to payback the net installation cost (Cost
divided by Savings).
3 Savings to Investment Ratio (SIR): Break Even Cost divided by initial installed cost, where Break-Even Cost is
how much can be spent and still have the measure be cost effective; it equals the Present Value (PV) of Savings over
the life of the measure minus PV of maintenance costs.
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V. Building Description
East High School is a large educational complex that has had many additions and renovations since it was
originally built in 1960. Currently, the complex is made up of three large buildings, as can be seen from
the Key Plan below, consisting of ten areas. The largest building contains areas 1, 2, 3, 5, 6, 7, 8 and 9,
which houses the majority of the school’s activities. Attached to the main building via bridges are the
Benny Benson building (area 4), which contains classrooms, and the Physical Education building (area
10), which has a pool and two gymnasiums.
Fig. 5 – East High School Key Plan – 2006 Renovation Drawings
The complex has gone through a significant number of changes throughout its history; including
additions, interior renovations, exterior renovations, and re-roofing projects. Due to the extensive number
of addition and renovation projects at EHS, a full discussion of each project’s history is outside the scope
of this audit. However, a brief list of the major renovation projects and years completed are shown below.
Table 2 - Building History
East High School – Building History*
Date Addition or Renovation
1960 Construction of East High School
1972 Addition of Physical Education Building (Pool and Gyms)
1975 Addition of Benny Benson Building & Renovation of Existing School
1993 Heating and Ventilation Upgrades
1995 Roof Replacement ‐ Phase I
1996 Roof Replacement ‐ Phase II
1997 Renovation of South Administration Area
1999 Lighting Upgrade to Gym
2000 Major and Minor Renovations
2003 Roof renovation of Auditorium and Entry Ways
2003 Interior Renovations & Addition of North Entry
2005 Renovations Phase 4A
2006 Renovation Phase 4B
2007 Interior Remodel
2010 Upgrade of Gym Fan Room 12
*A partial list of only significant projects is shown.
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The facility is operated from 6 a.m. until 4:30 p.m., five days a week during the school year. The school
is available during the evenings and weekends school sports and community activities. The pool is open
year round for school sports and community usage on Monday through Friday, from 5pm to 8:30pm. The
school year runs from late August through late May. Approximately 2,500 students and staff occupy the
school during the school day.
V.I School Architectural Description
The wall construction of EHS varies throughout the complex. Area 4, area 10 and the first floor of area 5
all have original 1970’s wall construction; consisting of concrete walls (6” to 9” thick) with 2” rigid
insulation between 2”x2” furring strips at 16” on-center, vapor barrier, and drywall on the interior side.
The composite R-value of the wall assembly is R-9.1, as modeled in AkWarm. The majority of the
exterior walls of areas 1, 3, and 6 and the west side of area 9 have the same wall construction as above,
with an R-9.1 composite insulation value. The north upper floor of area 5 has the same R-9.1 wall as
above; however, an additional layer of 2” XPS rigid insulation sheathing has been added over the 2”x2”
furring to create renovated R-19.7 composite wall. The central boiler room exterior wall (in area 5) is a
concrete wall with 2” thick Exterior Insulation & Finish System (EIFS) on the exterior side. All
remaining walls in areas 5, 6, 7, 8, and 9 have been renovated with EIFS panels (1.5” thick) over 2”x6”
metal stud walls at 16” on-center with R-19 fiberglass batt insulation, vapor barrier and drywall. This wall
has an R-22 composite insulation value. Area 2 was built with the same R-22 walls when originally
constructed in 2002. Finally, the high rooftop walls of the new auditorium in area 7 have concrete walls
with 4” thick EIFS panels on the exterior side, for an R-17.3 composite insulation value. There is
approximately 131,907 sq ft of exterior wall area in the complex.
The floor construction of the EHS is concrete slab on grade floors, with no under-floor insulation. All of
the floor perimeters of the school, except in area 2, have 1” rigid insulation that extends 4’ down along
the concrete foundation wall. The floor perimeter of area 2 has 2” rigid insulation, extending 4’ down the
foundation wall. The floors of the two sky bridges have 4” EIFS insulation under the floor for insulation.
Overall, the building has a 278,866 sq ft footprint. The upper floor areas added to the footprint equal the
361,698 sf total.
The roof areas of EHS are all built up flat roofs containing a metal deck, vapor barrier, rigid insulation
and weatherproof membrane. All roofs either have an average R-30 or R-38 insulation value depending
on when they were last re-roofed. The majority of the roofs were rebuilt in 1995 and 1996 with R-30
average insulation. In 2002 and 2003, the roofs of the pool, entry ways, new auditorium, and new area 2
addition were all roofed with R-38 average insulation. There is 278,866 sq ft of roof area. This does not
include the roof area of the entry ways that is not part of the heated building envelope.
Typical window construction for the school consists of double pane, clear glass with a ½” air space
between the panes and a metal frame. These metal frame windows were modeled in AkWarm to have an
insulation value of R-1.2. The school’s window area for all windows facing south is approximately 1,480
sf and all other window areas for the school total approximately 4,838 sf.
The door types throughout the school vary depending on renovation projects. Several of the original entry
ways still utilize single pane glass doors with single pane perimeter windows (R-0.8). Other original
doors are older black metal doors that appear to have limited insulation (R-1.0). There are three 10’x12’
and one 8’x8’ overhead wood sectional garage doors with a limited amount of insulation (R-2.6). The
majority of the original man doors and overhead doors have poor weather-stripping and bottom seals,
contributing to excessive air infiltration and heat loss. Newer entry ways in areas that have been
renovated have full glass doors and perimeter windows that are double pane, low-e, glass with a ½” air
space and thermally broken metal frames (R-1.9). The rest of the man doors are insulated metal doors
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with either no windows (R-5.0), or with a half-lite double pane window (R-3.0). There is 1,642 sf of
opaque door area and 1,044 sf of glass door area.
V.II Mechanical Description
EHS has a large variety of mechanical systems making it a complex building. The school has a central
heating plant consisting of four Weil-McLain 94 boilers, each rated for 8,660 MBH gas input. Two
boilers are equipped with dual fuel burners as part of emergency-preparedness contingencies. They are
provided with Weishaupt GL9 gas/oil burners, which are rated for maximum inputs of 87.7 GPH fuel oil
#2 or 12,286 MBH gas. The remaining two boilers are equipped with Gordon-Piatt natural gas burners
rated for a maximum input of 8,660 MBH gas. School heating is accomplished through a combination of
perimeter baseboard heaters, terminal unit heaters, and air handler heating coils.
There are two indirect, one electric, and one gas-fired water heaters providing domestic hot water to the
school. All hot water heaters are equipped with recirculation pumps. Domestic hot water for the pool is
provided by three gas-fired high-efficiency condensing water heaters. They supply domestic hot water to
the pool locker rooms in addition to heating the pool water through a plate-and-frame heat exchanger.
Conditioned air is provided to the building through 20 different air handling units (AHUs). Several units
that are still in service were part of the building’s original construction. Several were part of the pool/gym
building expansion, and several were part of the Benny Benson building expansion. The remaining AHUs
are from renovations projects occurring after 2000. Please refer to Appendix C for a full list of AHUs,
where the units have been listed in approximate chronological order from oldest to newest.
The school’s building energy management and control system is a complex mix of direct digital control
(DDC), hybrid systems, and pneumatic control systems. Top level control is provided through DDC
programmable logic controllers. In newer parts of the school, equipment has been upgraded to use electric
actuators for end-use equipment. In areas such as the Benny Benson building, and the South Pool Fan
Room, the equipment uses a hybrid system, which controls the pneumatic system with DDC electro-
pneumatic transducers. In the oldest areas of the school, the DDC system only enables and disables the
equipment and collects temperature readings, while all operating control is provided through a
combination of line voltage thermostats and a pneumatic control system.
V.III Electrical Description
The school is served by four 277/480 Volt (V), three-phase, four-wire, underground electrical services
each connected to a dedicated pad-mounted utility transformer. There are two 800 Amp (A), one 1200A,
and one 1600A electrical services. Each service feeds a main distribution panel, which are distributed
throughout the school to serve local loads. The school has a standby diesel generator used to power
selected loads in the event of a power outage. Inside the school, 277/480V power is used to serve large
mechanical loads, lighting and large kitchen loads. Dry type transformers are used to step the voltage
down to 120/208V, three phase for receptacle loads, computers, small mechanical equipment such as lab
fume hoods, and small kitchen equipment.
Since the passage of the Energy Policy Act of 2005, all general purpose transformers have been required
to meet the efficiency requirements listed in the National Electrical Manufacturer's Association
publication NEMA TP1-2002. There are energy savings available by replacing these transformers with
new models that meet or exceed the standard, however caution must be exercised as replacing
transformers impacts available fault current and over-current protection device selective coordination.
The replacement of the school’s existing transformers to meet NEMA requirements can only be
recommended after performing a power system analysis. That level of study is outside the scope of this
project.
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Lighting within the school is extremely varied as some areas of the school have had lighting upgrades
while other areas have not. In general, school lighting consists of 3' fluorescent T12 light fixtures and 4'
T8 and T12 light fixtures. The gymnasium and cafeteria are illuminated by metal halide (MH) light
fixtures, and the music rooms are illuminated by large compact fluorescent lamp (CFL) fixtures. Recessed
down-lights are also scattered through the school and are equipped with halogen and CFL sources. .
The numerous 3' T12 fixtures at this school are cause for concern because they are not only inefficient but
also use an uncommon lamp which is becoming increasingly costly and hard to find.
Exterior lighting consists of High Pressure Sodium (HPS) and MH wall pack, canopy and pole mounted
light fixtures. The parking areas are primarily illuminated by 400W HPS pole mounted fixtures while the
majority of the building mounted light fixtures are smaller 100 and 150W MH and HPS source fixtures.
The building mounted canopy and wall pack fixtures are controlled by a photo sensor that turns the light
on when it is dark. The parking area light fixtures are also controlled by a photo sensor but they also have
an input from the security system that turns off the lights while the security system is armed.
Other electricity-using equipment not previously described in the mechanical or electrical sections include
vending machines, microwaves, a walk in freezer and refrigerator, other kitchen equipment, and various
user equipment such as projectors, computers, printers and shop equipment.
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VI. Historic Energy Consumption and Cost
Tables provided in Appendix A, Energy Benchmark Data Report, represent the electric and natural gas
energy usage for the surveyed facility from Jan 2009 to Dec 2010. Chugach Electric provides the
electricity and ENSTAR provides the natural gas to the building. Both utility companies bill the facility
using a commercial rate schedule. The actual utility bills were not provided to be able to verify the data
received to assure 100 percent accuracy of the data.
The AkWarm model of the facility was built to match the facility’s average annual electric and natural
gas consumption, so that a realistic model could be created. The monthly energy consumption of the
AkWarm model matches the actual average monthly consumption of the facility within 25%, which is
adequate for this level of modeling. Overall, the energy consumption trends of the AkWarm model and
the actual facility match appropriately. Graphical representations of the monthly energy consumption are
included in Appendix A.
VI.I Electrical Consumption Data
The electric utility costs consist of several components: a fixed monthly customer charge, an energy usage
charge, fuel surcharge, taxes, and a demand charge. The energy usage and fuel surcharge are based on the
customer's usage as measured in kilowatt-hours (kWh). The usage (kWh) is determined by load wattage
divided by 1,000, times hours running. For example, a 1,000 watt load operating for one hour will use 1
kWh of electricity as would ten, 100 watt lamps operating for one hour or one, 100W lamp operating for
10 hours. One kWh is equivalent to 3,413 BTU. Utility data used in this report reflects the historical data
provided for the building in a summarized format.
VI.II Natural Gas Consumption Data
The natural gas supplier bills for consumption in CCF of natural gas, where one CCF equals 100 cubic
feet of natural gas. The average heating value of natural gas is 1,000 BTUs per cubic foot, making 1 CCF
equal to 100,000 BTUs or 1 Therm.
VI.III Overall Energy Consumption Data
The overall cost for energy use is calculated by dividing the total cost by the total usage. Based on the
electric and natural gas utility data provided, the average cost for the energy and consumption calculations
at the surveyed facility are summarized in the table below. The benchmark data includes the natural
gas used by the pool for both space heating and pool water heating. Due to this fact, the square
footage of the facility includes the square footage of the pool.
Table 3 - Energy Cost and Consumption Data
Energy Cost and Consumption Data
2009 2010 Average
Electric 0.115 $/kWh 0.110 $/kWh 0.113 $/kWh
Natural Gas 0.98 $/CCF 0.81 $/CCF 0.90 $/CCF
Total Cost $704,935 $630,547 $668,026
ECI 1.95 $/sf 1.79 $/sf 1.85 $/sf
Electric EUI 34.0 kBtu/sf 32.7 kBtu/sf 33.4 kBtu/sf
Natural Gas EUI 81.8 kBtu/sf 84.8 kBtu/sf 83.3 kBtu/sf
Building EUI 115.8 kBtu/sf 117.5 kBtu/sf 116.6 kBtu/sf
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The Energy Cost Index (ECI) is derived by dividing the annual cost by the building square footage. The
building square footage was calculated to be approximately 361,698 sf, which includes the 19,130 sf pool.
The annual EUI is expressed in Thousands of British Thermal Units per Square Foot (kBtu/sf) and can be
used to compare energy consumption of similar building types or to track consumption from year to year
in the same building. The EUI is calculated by converting annual consumption of all fuels used to Btu’s
and then dividing by the area (gross conditioned square footage) of the building. EUI is a good indicator
of the relative potential for energy savings. A comparatively low EUI indicates less potential for large
energy savings. Building architectural, mechanical, and electrical drawings were obtained and utilized to
calculate and verify the gross area of the facility. The gross area was confirmed on the physical site
investigation.
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VII. Equipment Inventory and Photo Survey
Following the completion of the field survey a detailed equipment list was created and is attached as
Appendix C. The major equipment listed are considered to be the major energy consuming equipment in
the building whose replacement could yield substantial energy savings.
An approximate age was assigned to the equipment if a manufactured date was not shown on the
equipment’s nameplate. As listed in the 2011 ASHRAE Handbook for HVAC Applications, Chapter 37,
Table 4, the service life for the equipment along with the remaining useful life in accordance to the
ASHRAE standard are also noted in the equipment list.
Where there are zero (0) years remaining in the estimated useful life of a piece of equipment, this is an
indication that maintenance costs are likely on the rise and more efficient replacement equipment is
available which will lower the operating costs of the unit. Maintenance costs should also fall with the
replacement.
Additionally, photos of various equipment and the building construction were taken during the site visit.
Several photos are included in Appendix E.
CEI made miscellaneous thermographic images of the building using a FLIR T300 Infrared Camera. This
is not a thermographic study, but rather just a few snapshots to illustrate easy-to-identify heat losses.
These thermographic photos are included in Appendix F.
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VIII. Energy Conservation Measures
The following ECMs described here have been calculated by AkWarm Commercial and considered by the
energy audit team as viable projects. ECMs provided below are considered to have viable financial ratios
(SIR>1) or to add value to the building or building operational profiles. For a full list of ECMs considered
and calculated by the energy audit team, including ECMs not recommended at this time, please see
Appendix D.
VIII.I School Energy Conservation Measures
ECM# EHS-1 – Replace residential & light commercial refrigerators/freezers older than 5 years old
Annual Energy Savings Installed Cost SIR Payback (years)
---<10 years
Due to advances in refrigerators in the previous five years, new Energy Star residential-type and light
commercial-type refrigerators and freezers are much more efficient and result in viable energy savings.
Built-in refrigerators and freezers should be evaluated independently. Replacing existing refrigerators,
which are older than five years old, with new energy star models will typically have paybacks of less than
10 years.
ECM# EHS-2 – Setback Thermostat for School
Annual Energy Savings Installed Cost SIR Payback (years)
$40,904 $4,000 130 0.1
Currently, there is a night-set back schedule that lowers building temperatures to 65F during unoccupied
mode. However, even greater energy savings exist by reducing the room temperature of the building
spaces further to 60F during unoccupied times. Lowering the heat load of the building will reduce natural
gas consumption. Since the school’s thermostats are already connected to the DDC system, the cost of
this ECM only includes the time required to program a night setback. The 60F night-set back is feasible;
however it may require that that other DDC setpoints be changed, such as the low-temp alarm. This ECM
is a compilation of items 1 and 2 in Appendix D, which are intended to be implemented concurrently.
Details of the individual items are shown in Appendix D.
ECM # EHS-3 – Provide Occupancy Sensor control of vending machines
Annual Energy Savings Installed Cost SIR Payback (years)
$3,170 $4,500 10.8 1.4
This school has 11 refrigerated drink vending machines, 5 snack vending machines, and 2 ice cream
vending machines that are on continuously. The nameplate data on these machines was not available. For
modeling purposes, industry average loads of 485W for the ice cream machines, 400W for refrigerated
drink machines, and 85W for the snack machines were assumed. This measure includes installing
Vending Miser® or similar motion sensing controls at all vending machine locations. This system consists
of occupancy sensors and ambient temperature sensors that turn on non-refrigerated vending machines
only when a person is detected and turns on refrigerated vending machines when a person is detected or
as needed to maintain product temperature. In K-12 settings, typical energy savings range from 25%-
65%. For modeling purposes, a savings of 50% was assumed. This ECM is a compilation of items 6, 7
and 45 as modeled in AkWarm which are intended to be implemented concurrently. Details of individual
items are shown in Appendix D.
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ECM # EHS-4 – Upgrade the Lighting in Corridors
Annual Energy Savings Installed Cost SIR Payback (years)
$19,206 $106,350 2.8 5.5
The intent of this ECM is to save energy and upgrade lighting in the corridors, restrooms, and similar
common spaces. It includes the replacement all T12 lamps in with T8 lamps; providing occupancy
sensors controls; eliminating night lights; and replacing all incandescent lamps with LEDs. The majority
of the items in this measure affect areas 1, 2, 3 & 6, but there are elements in other areas of the school as
well.
The design includes the following:
Replacement of (83) 2-lamp T12 wraps with 2-lamp T8 wraps.
Replacement of (23) 3-lamp T12 wraps with 3-lamp T8 wraps.
Retrofit (7) 2-lamp T12 troffers with 2-lamp T8 volumetric kits.
Replacement of (197) 4-lamp T12 troffers with 4-lamp T8 troffers.
Replacement of (77) 2'X2' 2-lamp U-tube T12 fixtures with 2'X4' 2-lamp T8 troffers, and
replacement ceiling tiles as necessary.
Replacement of (27) 3'X3' 4-lamp T12 troffers with 2'X4' 3-lamp T8 troffers, and replacement
ceiling tiles as necessary.
Retrofitting (12) 4'X4' 8-lamp T12 fixtures with (8) T8 lamps each.
Providing approximately (86) occupancy sensors to control lighting in all restrooms, corridors,
and common areas that do not already have them. Rewiring to eliminate all night lights.
Relamping (25) incandescent down lights with LED lamps.
This ECM is a compilation of many individual items in modeled in AkWarm which are intended to be
implemented at the same time. It includes items 4, 5, 9, 10, 19, 20, 22, 24, 26, 27, 28, 30, 34, 37, 38, 40,
41, 43, 48, 51, 52, 53, 55, 56, 57, 63, 65, 68, 71, 73, 74, 77, 82, 84, 89, 92, 93, 94 & 118. Note that some
items have a SIR of less than 1.0, but the project as a whole has an SIR of 2.8.
ECM # EHS-5 – Install Two Exhaust Stack Economizers on Gas Only Boilers
Annual Energy Savings Installed Cost SIR Payback (years)
$7,094 $70,000 1.63 9.9
Installing two exhaust stack economizers on the exhaust stacks of the two existing gas-only boilers will
recover heat from exhaust gases. One economizer would be installed on boiler B-3 and one economizer
would be installed on boiler B-4. An exhaust stack economizer utilizes a fan and heat exchanger to
transfer heat from exhaust gases to the hydronic system, increasing the efficiency of the heating system
by approximately 5% or more. Due to the large input rating of the boilers, each gas-only boiler must
utilize its own economizer. An Enervex IPVB-ECO 500 was used as a basis for the ECM. Details of the
ECM are shown in item 64 in Appendix D.
Note: ECM-5 and ECM-8 are mutually exclusive and only one should be implemented. The ECMs are
not intended to be implemented concurrently. For example, if ECM-8 is chosen and new high efficiency
boilers are installed, then ECM-5 should not be completed because installing exhaust stack economizers
is no longer applicable.
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ECM # EHS-6 – Upgrade the Lighting in Gyms and Locker Rooms
Annual Energy Savings Installed Cost SIR Payback (years)
$9,823 $98,750 1.5 10.1
The measure includes upgrading the lights in the Gyms and Locker Rooms. The ECM includes the
following:
Locker rooms: Replacement of (90) 2-lamp T12 wet location wraps with 2-lamp T8 fixtures,
rewiring all night lights to be switched, and the installation of (4) vandal resistant occupancy
sensors.
Room PE 105: Replacement of (26) 2'X2' 400W MH fixtures with 6-lamp T5HO high bay
fixtures with multi-level switching, rewiring all night lights to be switched, and the installation of
(4) occupancy sensors.
Lobby: Removal of (6) 1-lamp T12 strips above the concession stands and the replacement of
(56) 1-lamp T12 strips with 1-lamp T8 strips.
Upper Gym: Replacement of (36) 2'X2' 400W MH fixtures with 6-lamp T5HO high bay fixtures
with multi-level switching and rewiring all night lights to be switched.
Weight Room and Gymnastics Room: Replacement of (86) 2-lamp T12 fixtures with 2-lamp T8
fixtures switching and rewiring all night lights to be switched.
Pool support areas: replacement of (3) 4-lamp T12 fixtures with 3-lamp T8 fixtures.
This ECM is a compilation of many individual items in modeled in AkWarm which are intended to be
implemented at the same time. It includes items 17, 29, 32, 46, 49, 70, 75, 86, & 88 from Appendix D.
ECM # EHS-7 – Upgrade the Lighting in Offices
Annual Energy Savings Installed Cost SIR Payback (years)
$1,914 $20,700 1.4 10.8
It is recommended that the existing T12 lamps in the offices be replaced with new T8 lamps and
occupancy sensors controls. The ECM includes the following:
Replacement of (2) 2-lamp T12 troffers with 2-lamp T8 troffers.
Replacement of (43) 3-lamp T12 troffers with 3-lamp T8 troffers.
Replacement of (18) 3'X3' 4-lamp T12 troffers with 2'X4' 3-lamp T8 troffers, and replacement
ceiling tiles as necessary.
Replacement of (3) 1'X3' 2-lamp T12 troffers with 2'X4' 2-lamp T8 troffers, and replacement
ceiling tiles as necessary.
The installation of approximately (44) occupancy sensors to control in all offices that do not
already have them.
This ECM is a compilation of many individual items in modeled in AkWarm which are intended to be
implemented at the same time. It includes items 8, 13, 42, 59, 78, 82, 91, 96, 100, & 116 from Appendix
D. Note that some items have a SIR of less than 1.0, but the project as a whole has an SIR of 1.4.
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ECM # EHS-8 – Replace One Gas-Only Boiler with Two New High Efficiency Boilers
Annual Energy Savings Installed Cost SIR Payback (years)
$21,896 $360,000 1.34 16.4
Significant natural gas savings can be achieved by replacing the existing gas-only boiler B-4 with two
new modulating high efficiency boilers. Two AERCO Benchmark BMK3.0 boilers were used as the basis
of the ECM. The existing boilers B-1, B-2, and B-3 would remain in place and would be kept as the lag or
back-up boilers for supplemental heating, as well as fuel oil burners for dual-fuel purposes. New
modulating and condensing high efficiency boilers vary their heat output rate to match the heating needs
of the building. This allows the boiler to operate at lower return water temperatures and reduce boiler
on/off cycling, which significantly increases the boiler’s efficiency. The new modulating boilers will also
allow the existing boilers to operate at high fire with reduced on/off cycling.
The two new high efficiency boilers are modeled in the primary firing position. The intent is for them to
operate first in the firing order and modulate down to accommodate low demand periods. This will give
them the most run-time and generate the most savings for ASD. Only when the heating load exceeds the
capacity of the first two would one or more of the existing boilers fire and assume a proportion of the
heating load. With this scenario, the building is expected to have adequate redundancy, expressed as
(n+1), or better.
This ECM was modeled with a separate AkWarm model and as a result the item is not an additive
measure in AkWarm. It is therefore not included in the final cost savings total in the final AkWarm
model in the Appendix D.
Note: ECM-5 and ECM-8 are mutually exclusive and only one should be implemented. The ECMs are
not intended to be implemented concurrently. For example, if ECM-8 is chosen and new high efficiency
boilers are installed, then ECM-5 should not be completed because installing exhaust stack economizers
is no longer applicable.
ECM # EHS-9 – Replace Original Black Metal Entry Doors
Annual Energy Savings Installed Cost SIR Payback (years)
$437 $7,379 1.31 16.9
Many of the exterior doors of areas 4, 5 and 10 are original black metal entry doors with an estimated
insulation value of R-1. There are a total of eight double doors and 2 single doors of this type. It is
recommended that these doors be replaced with new insulated entry doors (U-0.16). New weather-
stripping should be installed on the new door during replacement. Details of the ECM are shown in item
72 in Appendix D.
ECM # EHS-10 – Upgrade the Lighting in Classrooms
Annual Energy Savings Installed Cost SIR Payback (years)
$32,441 $378,650 1.3 11.7
The intent of this ECM is to save energy and upgrade lighting in the classrooms. It includes the
replacement of all T12 lamps in classrooms with T8 lamps; providing occupancy sensors control in all
classrooms that do not already have it; providing day light sensor control in select classrooms; and
replacing all incandescent lamps with LEDs. The majority of the items in this measure affect areas 1, 2, 3
& 6, but there are elements in other areas of the school as well. The design intent is as follows:
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Replace 3-lamp T12 wraps with 3-lamp T8 wraps, except in areas that are over illuminated,
where 2-lamp T8 lamps should be installed.
Replace 3-lamp T12 parabolic fixtures with 3-lamp T8 fixtures with bi-level switching.
Retrofit 2-lamp T12 troffers with 2-lamp T8 volumetric kits with bi-level switching.
Replace 3'X3' 4-lamp T12 troffers with 2'X4' 3-lamp T8 troffers, provide replacement ceiling tiles
as necessary.
Replace 1'X3' 2-lamp T12 troffers with 2'X4' 2-lamp T8 troffers, provide replacement ceiling tiles
as necessary.
Replace 400W MH highbay fixtures in music classrooms with 6-lamp T5HO high bay fixtures
with multilevel switching.
Provide occupancy sensors in all classrooms.
Provide day light sensors in classrooms with south-facing windows and bi-level switching. The
sensors will turn the light fixtures nearest the windows down to their lower light output setting
when daylight is providing sufficient illumination.
This ECM is a compilation of many individual items modeled in AkWarm, which are intended to be
implemented at the same time. This project would replace, retrofit or re-lamp approximately 1,950
fixtures and add approximately 225 lighting control devices, including occupancy sensors and daylight
sensors. This ECM may be implemented in stages depending on available funding. The details of the
individual measures are shown in the table below. Note that due to the constraints of the software there is
a line item for each fixture type. A particular room may have several fixture types and be shown on
multiple lines. Note that some line items have a SIR < 1.0, but the project as a whole has an SIR of 1.3.
Classroom lighting
AkWarm
ECM# Area Detailed Description Annual
Savings Cost SIR Payback
11 Lighting: Courtyard Testing Area
(3) T12 Mag Wrap, WS NL
Replace (3) 3‐lamp T12 wraps,
with (3) 3‐lamp T8 wraps; re‐
wire nights lights to be
switched; Add (1) new
Occupancy Sensor
$528 $800 10.2 1.5
12 Lighting: Classrooms NW9,
NW13, NW18
Add (3) new Daylight Sensors $345 $600 8.72 1.7
14 Lighting: Classrooms NW2,
NW3, NW6
Add (8) new Occupancy
Sensors; Spaces are over
illuminated remove one of
three lamps in (74) fixtures.
$536 $1,200 6.88 2.2
15 Lighting: Classroom Tech Labs Replace (6) 3‐lamp T12
fixtures, with (3) 3‐lamp T8
fixtures; re‐wire nights lights
to be switched; Add (1) new
Occupancy Sensor
$599 $1,350 6.73 2.3
18 Lighting: Native Studies
Classroom
Add (1) new Occupancy
Sensor
$58 $150 5.82 2.6
23 Lighting: Practice Room PA110 Add (1) new Occupancy
Sensor practice room PA110.
$44 $150 4.47 3.4
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Classroom lighting
AkWarm Area Detailed Description Annual Cost SIR Payback
25 Lighting: Classroom RM20 Add (2) new Occupancy
Sensor, (2) new Daylight
Sensors
$313 $1,100 4.32 3.5
31 Lighting: Classrooms RM7, RM9,
RM18
Add (3) new Occupancy
Sensor, (4) Daylight Sensors
$289 $1,250 3.51 4.3
33 Lighting: Classrooms RM6,
RM10, RM 16
Add (6) new Occupancy
Sensors
$200 $900 3.36 4.5
36 Lighting: Classroom C206 Add (1) new Occupancy
Sensor
$32 $150 3.25 4.7
39 Lighting: Classrooms VA5,
VA5B, RM28B
Add (3) new Occupancy
Sensors
$87 $450 2.94 5.2
45 Lighting: Classroom S1 Add (1) new Occupancy
Sensor
$25 $150 2.5 6.0
47 Lighting: Classrooms S119,
NW1, NW5
Add new Multi‐Level
Switching
$234 $1,500 2.37 6.4
58 Lighting: Classrooms NE7, NE8,
NE9, NE10, NE11, NE12,
Drafting Computer Lab, RM 17
Replace (343) 3‐lamp T12
wraps, with (343) 2‐lamp T8
wraps; Add (24) new
Occupancy Sensors; Add (3)
new Daylight sensors in NE8,
NE9, & RM 17.
$6,752 $56,100 1.83 8.3
61 Lighting: Classrooms NWL121 &
Tech Lab
Replace (106) 3‐lamp T12
parabolic, fixtures with (112)
3‐lamp T8 fxitures; Add
(7)new Occupancy Sensors
$1,905 $16,950 1.7 8.9
62 Lighting: Classrooms M1,
PA206, PA207, PA208, RM28A,
RM28C
Add (6) new Occupancy
Sensors
$107 $900 1.66 8.4
76 Lighting: Classrooms NWL Tech
Lab A, NWL112, NE104, NE108,
NE3, NE4, NE5, NE6, NE6A,
NE13, NE14, NE15, NE16, NE17,
NE18, NE19, NE20A, NE20B,
SC110, RM15, RM21, RM23,
RM25, RM27, RM29, RM30,
RM31, RM32, RM33, RM34,
RM36, RM90, S5, S6, S7, S8
Replace (554) 2‐lamp T12
wraps (w/magnetic ballasts)
with (554) 2‐lamp T8 wraps;
Add (40) new Occupancy
Sensors; Add (13) new
Daylight Sensors in rooms
RM29, RM27, RM25, RM23,
RM21, RM15, RM31, RM33,
NE108, NE20B, NE13, NE15,
NE16.
$7,363 $91,100 1.23 12.4
79 Lighting: Classroom #91 (2) T12
Mag Wrap, WS
Replace (45) 2‐lamp T12
wraps with (45) 2‐lamp T8
wraps; Add (3) new
Occupancy Sensors
$564 $7,200 1.19 12.8
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Classroom lighting
AkWarm Area Detailed Description Annual Cost SIR Payback
80 Lighting: Classroom NWL122 Retrofit (19) 2‐lamp T12
troffers, with (19) 2‐lamp T8
volumetric kits; Add (2) new
Occupancy Sensors.
$238 $3,150 1.15 13.2
81 Lighting: Classrooms 112, 114,
116, , 201, 202, 203, 204, 205,
206, 207, 208, 209, 212, 213,
214, 215, 216, 217, 218, 219,
SW101, SW102, SW104,
SW115, SW117, TV
Replace (614) 4‐lamp, 3'X3'
troffers with (614) 3‐lamp T8
fixtures; Replace (614) ceiling
tiles; Add (41) new Occupancy
Sensors.
$9,572 $128,950 1.13 13.5
98 Lighting: Classrooms SW103 &
SW105
Replace (51) 4‐lamp, 3'X3' T12
troffers with (51) 3‐lamp T8
fixtures; Replace (51) ceiling
tiles; Add (3) new Occupancy
Sensors.
$555 $10,650 0.79 19.2
99 Lighting: Classrooms NE3, NE4,
NE6, NE6, NE6A, NE14, NE16,
NE17, NE18, NE19, NE20A
Replace (63) 2‐lamp T12
wraps (w/electronic ballasts)
with (63) 2‐lamp T8 wraps;
Add (13) new Occupancy
Sensors; Add (10) new
Daylight Sensors
$558 $12,950 0.65 23.2
101 Lighting: Classrooms
Band/Choir/Orchestra
Replace (26) 2'X2', 400W MH
highbays with (26) 6‐lamp
T5HO fixtures; Add (3) new
Occupancy Sensors.
$1,060 $26,450 0.61 25.0
102 Lighting: Class S119 (2) T12 Mag
Wrap, WS
Replace with 5 FLUOR (2) T8
4' F32T8 32W Standard
Program HighEfficElectronic
$30 $750 0.61 25.0
107 Lighting: Incandescent fixtures Relamp (27) incandescent
fixtures with 8W LED
Modules; (11) A‐base type in
music practice rooms, (6) MR‐
16 type in library display
cases, (4) A‐base type in PA‐
208, (6) in trophy case.
$143 $1,350 0.5 9.4
111 Lighting: Classrooms 116,
SW117, 201, 202, 208, 209, 212,
218, 219, SW101, SW102,
SW104, TV
Replace (47) 2‐lamp, 1'X3' T12
troffers with (47) 2‐lamp T8
fixtures; Replace (47) ceiling
tiles; Add (3) new Occupancy
Sensors.
$258 $9,850 0.4 38.2
120 Lighting: Classrooms SW103 &
SW105
Replace (12) 2‐lamp, 1'X3' T12
troffers with (12) 2‐lamp T8
fixtures; Replace (12) ceiling
tiles; Add (1) new Occupancy
Sensor.
$46 $2,550 0.27 55.4
TOTALS: $32,441 $378,650 1.3 11.7
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ECM # EHS-11 – Upgrade the Lighting in Storage/Utility Spaces
Annual Energy Savings Installed Cost SIR Payback (years)
$2,676 $36,400 1.1 13.6
The intent of this ECM is to save energy and upgrade lighting in storage rooms, mechanical rooms,
electrical rooms, and similar utility spaces. It includes the replacement of all T12 lamps in with T8 lamps;
installation of occupancy sensors; eliminating nightlights where appropriate; and replacement of all
incandescent lamps with LEDs.
The design includes the following:
Replacement of (177) 2-lamp T12 wraps with 2-lamp T8 wraps.
Replacement of (13) 3-lamp T12 wraps with 3-lamp T8 wraps.
Replacement of (15) 4-lamp T12 wraps with 4-lamp T8 wraps.
Replacement of (5) 2'X2' 2-lamp U-tube T12 fixtures with 1'X4' 2-lamp T8 fixtures.
Replacement of (15) 1-lamp T12 strips with 1-lamp T8 strips. Relamping (30) incandescent down
lights with LED lamps.
Installation of approximately (18) occupancy sensors
This ECM is a compilation of many individual items in modeled in AkWarm which are intended to be
implemented at the same time. It includes items 3, 16, 21, 35, 50, 54, 60, 66, 67, 69, 85, 90, 95, 103, 108,
109, 110, 114, 117 & 121 from Appendix D. Note that some items have an SIR < 1.0, but the project as a
whole has an SIR of 1.1.
ECM # EHS-12 – Perform Air Sealing to Reduce Air Leakage by 20%
Annual Energy Savings Installed Cost SIR Payback (years)
$11,485 $100,000 1.03 8.7
Unconditioned infiltration air, leaking through doors, windows, and other building envelope penetrations
contributes to the heating load of the building. Methods to decrease the infiltration into the building
include: sealing around roof and wall penetrations with caulking and insulation, gasketing mechanical
louvers or hoods, providing gaskets to all exterior cover plates, and adding weather stripping around
exterior doors. To achieve a viable economic benefit, $100,000 can be invested and still achieve an SIR >
1 by reducing air leakage by 20%. Details of the ECM are shown in item 87 in Appendix D.
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VIII.II Administrative Controls for Energy Conservation and Optimization
While the intent of many energy conservation measures is to increase the efficiency of fuel-burning and
electrical equipment, an important factor of energy consumption lies in the operational profiles which
control the equipment usage. Such profiles can be managed by administrative controls and departmental
leadership. They determine how and when fuel-burning and electrical equipment are used, and therefore
have a greater impact on energy savings potential than simply equipment upgrades alone. Significant
energy cost savings can be realized when ECMs are combined with efficient-minded operational profiles.
Operational profiles may be outlined by organization policy or developed naturally or historically. These
profiles include, but are not limited to: operating schedules, equipment setpoints and control strategies,
maintenance schedules, and site and equipment selection.
Optimization of operational profiles can be accomplished by numerous methods so long as the intent is
reduction in energy-using equipment runtime. Due to the numerous methods of optimization, energy cost
savings solely as a result of operational optimization are difficult to predict. Quantification, however, is
easy to accomplish by metering energy usage during and/or after implementation of energy-saving
operational profiles and ECMs. Shown below are some examples which have proven successful for other
organizations.
Optimization of site selection includes scheduling and location of events. If several buildings in a given
neighborhood are all lightly used after regularly occupied hours, energy savings can be found when after-
hours events are consolidated and held within the most energy efficient buildings available for use. As a
result, unoccupied buildings could be shut down to the greatest extent possible to reduce energy
consumption.
Two operational behaviors which can be combined with equipment upgrades are operating schedules and
equipment control strategies including setpoints. Occupancy and daylight sensors can be programmed to
automatically shut off or dim lighting when rooms are unoccupied or sufficiently lit from the sun.
Operating schedules can be optimized to run equipment only during regular or high-occupancy periods.
Also, through a central control system, or with digital programmable thermostats, temperature setpoints
can be reduced during low-occupancy hours to maximize savings. In addition, sporadically used
equipment can be shut down during unoccupied hours to further save energy. In general, having
equipment operating in areas where no occupants are present is inefficient, and presents an opportunity
for energy savings.
Operational profiles can also be implemented to take advantage of no- or low-cost ECMs. Examples
include heating plant optimizations (boiler section cleaning, boiler flush-through cleaning) and tighter
controls of equipment setbacks and shutdowns (unoccupied zones equipment shutdown, easier access to
and finer control of equipment for after-hours control). In a large facility management program,
implementation of these measures across many or all sites will realize dramatic savings due to the
quantity of equipment involved.
Changes to building operational profiles can only be realized while simultaneously addressing health,
safety, user comfort, and user requirements first. It is impractical to expect users to occupy a building or
implement operational behaviors which do not meet such considerations. That said, it is quite practical for
management groups to implement administrative controls which reduce losses brought about by excess
and sub-optimum usage.
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
Appendix A
Energy Benchmark Data
First Name Last Name Middle Name Phone
Steven Golab 348-5132
State Zip
AK
Monday-
Friday
Saturday Sunday Holidays
7:00-4:00
Average # of
Occupants
During
2005
Renovations
Date
Year Built
1960
Facility Address
Building Type
Mixed
Community Population
Facility City
Date
07/23/11Municipal Government/Subdivision
East High School Education - K - 12 361,698 (Including the 19,130 sq ft Pool)
REAL Preliminary Benchmark Data Form
PART I – FACILITY INFORMATION
Facility Owner
MOA
1972 195409 SF Classrooms, Pool, Gym, Shops
4025 E 24th Anchorage
1960 157052 SF Original
Building Name/ Identifier Building Usage Building Square Footage
Facility Owned By
Primary
Operating
Hours
Contact Person
City
AnchorageAnchorage School District
Mailing Address
Facility Zip
261,500
99517
Email
Golab_Steven@asdk12.org
Details
PART II – ENERGY SOURCES
Heating Oil Electricity Natural Gas Propane Wood Coal
$ /gallon $ / kWh $ / CCF $ / gal $ / cord $ / ton
Other energy
sources?
Describe
2005 1073 SF Entrance
Total = 342568 SF (Not Including Pool)
2001 (19130 SF) Pool Transfer to Muni
1972 195409 SF Classrooms, Pool, Gym, Shops
Total = 361,698 SF (Including Pool)
2002 8164 SF Classrooms
1. Please check every energy source you use in the table below. If known, please enter the base rate you pay for
the energy source.
2. Provide utilities bills for the most recent two-year period for each energy source you use.
East High School Draft Energy Audit Report
Coffman Engineers, Inc. AkWarm No. CIRI-ANC-CAEC-15
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
East High School
Buiding Size Input (sf) =361,698
2009 Natural Gas Consumption (Therms)295,804.00
2009 Natural Gas Cost ($)289,960
2009 Electric Consumption (kWh)3,601,593
2009 Electric Cost ($)414,975
2009 Total Energy Use (kBtu)41,872,637
2009 Total Energy Cost ($)704,935
Annual Energy Use Intensity (EUI)
2009 Natural Gas (kBtu/sf) 81.8
2009 Electricity (kBtu/sf)34.0
2009 Energy Utilization Index (kBtu/sf)115.8
Annual Energy Cost Index (ECI)
2009 Natural Gas Cost Index ($/sf)0.80
2009 Electric Cost Index ($/sf)1.15
2009 Energy Cost Index ($/sf)1.95
2010 Natural Gas Consumption (Therms)306,636.00
2010 Natural Gas Cost ($)248,848
2010 Electric Consumption (kWh)3,468,293
2010 Electric Cost ($)381,699
2010 Total Energy Use (kBtu)42,500,884
2010 Total Energy Cost ($)630,547
Annual Energy Use Intensity (EUI)
2010 Natural Gas (kBtu/sf)84.8
2010 Electricity (kBtu/sf)32.7
2010 Energy Utilization Index (kBtu/sf)117.5
Annual Energy Cost Index (ECI)
2010 Natural Gas Cost Index ($/sf)0.69
2010 Electric Cost Index ($/sf)1.06
20010 Energy Cost Index ($/sf)1.74
Note:
1 kWh = 3,413 Btu's
1 Therm = 100,000 Btu's
1 CF ≈ 1,000 Btu's
East High School Draft Energy Audit Report
Coffman Engineers, Inc. AkWarm No. CIRI-ANC-CAEC-15
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
East High SchoolNatural GasBtus/CCF =100,000Provider Customer # Month Start Date End Date Billing Days Consumption (CCF) Consumption (Therms) Demand Use Natural Gas Cost ($) Unit Cost ($/Therm) Demand Cost ($)Enstar NGCCombined Jan-09 12/23/08 01/28/093642,35742,357$42,175$1.00Enstar NGCCombined Feb-09 01/28/09 02/25/092828,64228,642$28,595$1.00Enstar NGCCombined Mar-09 02/25/09 03/26/092930,59630,596$29,025$0.95Enstar NGCCombined Apr-09 03/26/09 04/28/093321,80621,806$20,960$0.96Enstar NGCCombined May-09 04/28/09 05/26/092816,47216,472$16,598$1.01Enstar NGCCombined Jun-09 05/26/09 06/25/093016,07616,076$16,319$1.02Enstar NGCCombined Jul-09 06/25/09 07/28/09339,5799,579$9,776$1.02Enstar NGCCombined Aug-09 07/28/09 08/26/092910,96510,965$11,013$1.00Enstar NGCCombined Sep-09 08/26/09 09/25/093013,94213,942$13,829$0.99Enstar NGCCombined Oct-09 09/25/09 10/26/093124,25224,252$23,898$0.99Enstar NGCCombined Nov-09 10/26/09 11/23/092838,21038,210$37,596$0.98Enstar NGCCombined Dec-09 11/23/09 12/23/093042,90742,907$40,176$0.94Enstar NGCCombined Jan-10 12/23/09 01/25/103344,58344,583$36,203$0.81Enstar NGCCombined Feb-10 01/25/10 02/22/102835,94235,942$29,028$0.81Enstar NGCCombined Mar-10 02/22/10 03/26/103234,71634,716$27,142$0.78Enstar NGCCombined Apr-10 03/26/10 04/26/103122,79222,792$18,227$0.80Enstar NGCCombined May-10 04/26/10 05/25/102915,29815,298$12,178$0.80Enstar NGCCombinedJun-1005/25/1006/24/103010,42610,426$8,241$0.79Enstar NGCCombinedJun-1005/25/1006/24/103010,42610,426$8,241$0.79Enstar NGCCombined Jul-10 06/24/10 07/26/103210,11610,116$7,960$0.79Enstar NGCCombined Aug-10 07/26/10 08/25/10308,2728,272$9,156$1.11Enstar NGCCombined Sep-10 08/25/10 09/24/103014,49514,495$11,899$0.82Enstar NGCCombined Oct-10 09/24/10 10/25/103125,30625,306$20,528$0.81Enstar NGCCombined Nov-10 10/25/10 11/22/102835,76535,765$28,825$0.81Enstar NGCCombined Dec-10 11/22/10 12/21/102948,92548,925$39,461$0.81Jan - 09 to Dec - 09 total:295,804295,8040$289,960$0Jan - 10 to Dec - 10 total:306,636306,6360$248,848$0$0.98$0.81Jan - 09 to Dec - 09 avg:Jan - 10 to Dec - 10 avg:East High School Draft Energy Audit Report Coffman Engineers, Inc. AkWarm No. CIRI-ANC-CAEC-15 East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
$15,000 $20,000 $25,000 $30,000 $35,000 $40,000 $45,000 20,00030,00040,00050,00060,000Natural Gas Cost ($)Natural Gas Consumption (Therms)East High School - Natural Gas Consumption (Therms) vs. Natural Gas Cost ($)Natural Gas Consumption (Therms)Natural Gas Cost ($)$0 $5,000 $10,000 010,000Natural Gas Consumption (Therms)Date (Mon - Yr)East High School Draft Energy Audit Report Coffman Engineers, Inc. AkWarm No. CIRI-ANC-CAEC-15 East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
East High SchoolElectricityBtus/kWh =3,413Provider Customer # Month Start Date End Date Billing Days Consumption (kWh) Consumption (Therms) Demand Use Electric Cost ($) Unit Cost ($/kWh) Demand Cost ($)ML&P 35560538 Jan-09 12/18/2008 1/16/200929337,39011,515926$31,488$0.09$12,335.65ML&P 35560538 Feb-09 1/16/2009 2/19/200934298,09210,174N/A$28,012$0.09$0.00ML&P 35560538 Mar-09 2/19/2009 3/18/200927399,22513,626927$42,404$0.11$12,347.64ML&P 35560538 Apr-09 3/18/2009 4/17/200930341,66311,661932$38,021$0.11$12,419.57ML&P 35560538 May-09 4/17/2009 5/19/200932193,2926,597897$22,533$0.12$11,952.04ML&P 35560538 Jun-09 5/19/2009 6/17/200929239,8958,188805$28,379$0.12$10,717.27ML&P 35560538 Jul-09 6/17/2009 7/20/200933235,9638,053765$27,567$0.12$10,185.00ML&P 35560538 Aug-09 7/20/2009 8/19/200930261,9588,941770$30,591$0.12$10,249.74ML&P 35560538 Sep-09 8/19/2009 9/18/200930305,93110,441854$34,255$0.11$11,376.61ML&P 35560538 Oct-09 9/18/2009 10/19/200931327,88211,191893$36,614$0.11$11,892.10ML&P 35560538 Nov-09 10/19/2009 11/19/200931333,29711,375924$53,127$0.16$12,311.68ML&P 35560538 Dec-09 11/19/2009 12/17/200928327,00511,161944$41,984$0.13$12,575.41ML&P 35560538 Jan-10 12/27/2009 1/15/201019313,72510,707923$8,911$0.03$12,299.69ML&P 35560538 Feb-10 1/15/2010 2/17/201033302,22610,315969$26,972$0.09$12,911.08ML&P 35560538 Mar-10 2/17/2010 3/18/201029323,89711,055915$36,492$0.11$12,191.80ML&P 35560538 Apr-10 3/18/2010 4/19/201032312,07510,651900$38,003$0.12$11,988.00ML&P 35560538 May-10 4/19/2010 5/18/201029289,1039,867903$37,182$0.13$12,023.96ML&P35560538Jun-105/18/20106/17/201030222,9367,609842$28,855$0.13$11,654.78ML&P35560538Jun-105/18/20106/17/201030222,9367,609842$28,855$0.13$11,654.78ML&P 35560538 Jul-10 6/17/2010 7/22/201035224,0097,645775$27,241$0.12$10,739.84ML&P 35560538 Aug-10 7/22/2010 8/18/201027260,8918,904776$31,783$0.12$10,744.83ML&P 35560538 Sep-10 8/18/2010 9/17/201030288,3149,840862$34,115$0.12$11,941.47ML&P 35560538 Oct-10 9/17/2010 10/18/201031312,00010,649907$37,280$0.12$12,564.72ML&P 35560538 Nov-10 10/18/2010 11/17/201030306,51510,461944$37,176$0.12$13,075.79ML&P 35560538 Dec-10 11/17/2010 12/16/201029312,60210,669944$37,689$0.12$13,075.79Jan - 09 to Dec - 09 total:3,601,593122,9229,637$414,975$128,363Jan - 10 to Dec - 10 total:3,468,293118,37310,661 $381,699$145,212$0.12$0.11Jan - 09 to Dec - 09 avg:Jan - 10 to Dec - 10 avg:East High School Draft Energy Audit Report Coffman Engineers, Inc. AkWarm No. CIRI-ANC-CAEC-15 East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
$20,000$30,000$40,000$50,000$60,000150,000200,000250,000300,000350,000400,000450,000Electric Cost ($)Electric Consumption (kWh)East High School - Electric Consumption (kWh) vs. Electric Cost ($)Electric Consumption (kWh)Electric Cost ($)$0$10,000$20,000050,000100,000150,000Date (Mon - Yr)East High School Draft Energy Audit Report Coffman Engineers, Inc. AkWarm No. CIRI-ANC-CAEC-15 East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
Appendix B
AkWarm Commercial Reports
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
East High School
ENERGY AUDIT REPORT – PROJECT SUMMARY – Created 2/22/2012 10:29 AM
General Project Information
PROJECT INFORMATION AUDITOR INFORMATION
Building: East High School Auditor Company: Coffman Engineers, Inc.
Address: 4025 East Northern Lights Blvd. Auditor Name: Walter Heins, PE, CCP, CxA, CEA
City: Anchorage Auditor Address: 800 F Street
Anchorage, AK 99501 Client Name: Calvin Mundt
Client Address: 1301 Labar Street
Anchorage, AK 99515
Auditor Phone: (907) 276-6664
Auditor FAX: (907) 276-5042
Client Phone: (907) 742-5213 Auditor Comment:
Client FAX:
Design Data
Building Area: 361,698 square feet. This area includes
the 19,130 sf pool.
Design Heating Load: Design Loss at Space: 9,397,494
Btu/hour
with Distribution Losses: 10,084,000 Btu/hour
Plant Input Rating assuming 82.0% Plant Efficiency and
25% Safety Margin: 15,371,950 Btu/hour
Note: Additional Capacity should be added for DHW load,
if served.
Typical Occupancy: 0 people Design Indoor Temperature: 70.6 deg F (building
average)
Actual City: Anchorage Design Outdoor Temperature: -18 deg F
Weather/Fuel City: Anchorage Heating Degree Days: 10,816 deg F-days
Utility Information
Electric Utility: Chugach Electric - Commercial - Sm Natural Gas Provider: Enstar Natural Gas - Commercial -
Sm
Average Annual Cost/kWh: $0.113/kWh Average Annual Cost/ccf: $0.890/ccf
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 East High School Annual Energy Cost Estimate Description Space Heating Space Cooling Water Heating Lighting Refrigeration Other Electrical Cooking Clothes Drying Ventilation Fans Service Fees Total Cost Existing Building $235,025 $0 $42,345 $192,822 $0 $138,837 $0 $0 $68,390 $0 $677,418 With Proposed Retrofits $179,883 $0 $30,006 $110,363 $0 $135,667 $0 $0 $68,390 $0 $524,310 SAVINGS $55,141 $0 $12,339 $82,459 $0 $3,170 $0 $0 $0 $0 $153,108
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 East High School $0$200,000$400,000$600,000$800,000Existing RetrofitVentilation and FansSpace HeatingOther ElectricalLightingDomestic Hot WaterAnnual Energy Costs by End Use
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 East High School Annual Modeled Consumption (Blue) compared to Actual Electric (Left) and Natural Gas (Right) Consumption (Orange).
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 East High School Monthly Modeled Consumption (Blue) compared to Actual Electric Consumption (Orange).
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 East High School Monthly Modeled Consumption (Blue) compared to Actual Natural Gas Consumption (Orange)
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
Appendix C
Major Equipment List
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) B-1 BOILER RM BLDG HTG/ EMERGENCY PLANNING WEIL-MCLAIN 94 GAS-OIL FIRED CAST IRON SECTIONAL 8,660 MBH INPUT ≈ 83% - 30 15 B-2 BOILER RM BLDG HTG/ EMERGENCY PLANNING WEIL-MCLAIN 94 GAS-OIL FIRED CAST IRON SECTIONAL 8,660 MBH INPUT ≈ 83% - 30 15 B-3 BOILER RM BUILDING HEATING WEIL-MCLAIN 94 GAS-FIRED CAST IRON SECTIONAL 8,660 MBH INPUT ≈ 83% - 30 15 B-4 BOILER RM BUILDING HEATING WEIL-MCLAIN 94 GAS-FIRED CAST IRON SECTIONAL 8,660 MBH INPUT ≈ 83% - 30 15 P-1 A/B BOILER RM HEATING WATER CIRC BELL & GOSSETT - BASE MOUNTED 240 GPM 85 FT HD 89.5% 10 HP 20 0 P-2 A/B BOILER RM HEATING WATER CIRC ARMSTRONG 4030 BASE MOUNTED 496 GPM 60 FT HD 91% 15 HP 20 5 P-3 A/B BOILER RM HEATING WATER CIRC ARMSTRONG 4030 BASE MOUNTED 496 GPM 60 FT HD 89.5% 15 HP 20 5 P-4 A/B BOILER RM HEATING WATER CIRC ARMSTRONG 4030 BASE MOUNTED 900 GPM 60 FT HD 92.4% 20 HP 20 5 P-5 A/B BOILER RM HEATING WATER CIRC ARMSTRONG 4030 BASE MOUNTED 100 GPM 48 FT HD 86.5% 3 20 5 P-6 BOILER RM BOILER PUMP ARMSTRONG 4380 INLINE 400 GPM 18 FT HD ≈ 85% 3 HP 10 0 P-7 BOILER RM BOILER PUMP ARMSTRONG 4380 INLINE 400 GPM 18 FT HD ≈ 85% 3 HP 10 0 P-8 BOILER RM BOILER PUMP ARMSTRONG 4380 INLINE 400 GPM 18 FT HD ≈ 85% 3 HP 10 0 P-9 BOILER RM BOILER PUMP ARMSTRONG 4380 INLINE 400 GPM 18 FT HD ≈ 85% 3 HP 10 0
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) PUMP BOILER RM BOOSTER PUMP ARMSTRONG 4380 INLINE 200 GPM 13 FT HD ≈ 85% 1 HP 10 0 PUMP BOILER RM BOOSTER PUMP ARMSTRONG 4380 INLINE 200 GPM 13 FT HD ≈ 85% 1 HP 10 0 PUMP BOILER RM BOOSTER PUMP ARMSTRONG 4380 INLINE 200 GPM 13 FT HD ≈ 85% 1 HP 10 0 PUMP BOILER RM BOOSTER PUMP ARMSTRONG 4380 INLINE 200 GPM 13 FT HD ≈ 85% 1 HP 10 0 PUMP FAN RM 7 DHW RECIRC GRUNDFOS UPS 25-64 INLINE - ≈ 75% 180 W 10 - PUMP FAN RM 7 DHWH INJECTOR PUMP GRUNDFOS UP 15-42 INLINE - ≈ 75% 85 W 10 - PUMP FAN RM 7 HEATING WATER BOOSTER BELL & GOSSETT - INLINE - ≈ 80% 1/6 HP 10 0 PUMP FAN RM 7 HEATING WATER BOOSTER BELL & GOSSETT - INLINE - ≈ 80% 1/2 HP 10 0 PUMP FAN RM 9 DHW RECIRC GRUNDFOS UP 25-64 INLINE - ≈ 75% 180 W 10 - PUMP FAN RM 6 HEATING WATER BOOSTER BELL & GOSSETT - INLINE - ≈ 80% 1/6 HP 10 2 PUMP FAN RM 6 HEATING WATER BOOSTER BELL & GOSSETT - INLINE - ≈ 80% 3/4 10 7 PUMP FAN RM 5 DHW RECIRC GRUNDFOS UPS 15-55 INLINE - ≈ 75% 87 W 10 - PUMP FAN RM 5 DHWH INJECTOR PUMP GRUNDFOS UPS 15-55 INLINE - ≈ 75% 87 W 10 8
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) PUMP FAN RM 5 HEATING WATER BOOSTER BELL & GOSSETT - INLINE - ≈ 80% 1/6 HP 10 3 PUMP PENTHOUSE AHU-8 HEATING WATER INJECTION BELL & GOSSETT 60 INLINE 40 GPM 25 FT HD ≈ 75% 3/4 HP 10 4 PUMP PENTHOUSE AHU-8 HEATING WATER INJECTION BELL & GOSSETT 60 INLINE 40 GPM 25 FT HD ≈ 75% 3/4 HP 10 4 PUMP PENTHOUSE AHU-8 COIL GLYCOL CIRC BELL & GOSSETT 60 INLINE 40 GPM 25 FT HD ≈ 75% 3/4 HP 10 4 PUMP PENTHOUSE AHU-8 COIL GLYCOL CIRC BELL & GOSSETT 60 INLINE 40 GPM 25 FT HD ≈ 75% 3/4 HP 10 4 PUMP PENTHOUSE AHU-1 HEATING WATER INJECTION BELL & GOSSETT 90 INLINE 75 GPM 35 FT HD ≈ 80% 1-1/2 HP 10 4 PUMP PENTHOUSE AHU-1 HEATING WATER INJECTION BELL & GOSSETT 90 INLINE 75 GPM 35 FT HD ≈ 80% 1-1/2 HP 10 4 PUMP PENTHOUSE AHU-1 COIL GLYCOL CIRC BELL & GOSSETT 90 INLINE 89 GPM 25 FT HD ≈ 80% 1-1/2 HP 10 4 PUMP PENTHOUSE AHU-1 COIL GLYCOL CIRC BELL & GOSSETT 90 INLINE 89 GPM 25 FT HD ≈ 80% 1-1/2 HP 10 4 PUMP COMMONS FAN RM COIL GLYCOL CIRC ARMSTRONG 4300 INLINE 148 GPM 40 FT HD 86.5% 3 HP 10 - PUMP COMMONS COIL ARMSTRONG 4300 INLINE 148 GPM 86.5% 3 HP 10 -
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) FAN RM GLYCOL CIRC 40 FT HD PUMP MECH RM 122 COIL GLYCOL CIRC ARMSTRONG 4300 INLINE 68 GPM 40 FT HD 84% 2 HP 10 - PUMP MECH RM 122 COIL GLYCOL CIRC ARMSTRONG 4300 INLINE 68 GPM 40 FT HD 84% 2 HP 10 PUMP MECH RM 122 COIL GLYCOL CIRC TACO - INLINE - ≈ 80% 1 HP 10 0 PUMP MECH RM 122 COIL GLYCOL CIRC TACO - INLINE - ≈ 80% 1 HP 10 0 PUMP THEATER FAN RM COIL GLYCOL CIRC ARMSTRONG 4380 INLINE 200 GPM 40 FT HD 82.5% 5 HP 10 - PUMP THEATER FAN RM COIL GLYCOL CIRC ARMSTRONG 4380 INLINE 200 GPM 40 FT HD 82.5% 5 HP 10 - PUMP THEATER FAN RM HEATING WATER BOOSTER ARMSTRONG 4380 INLINE 280 GPM 40 FT HD 82.5% 5 HP 10 - PUMP THEATER FAN RM HEATING WATER BOOSTER ARMSTRONG 4380 INLINE 280 GPM 40 FT HD 82.5% 5 HP 10 - PUMP SOUTH GYM FAN RM ASD GLYCOL CIRC TACO - INLINE - ≈ 80% 2 HP 10 0 PUMP SOUTH GYM FAN RM ASD GLYCOL CIRC TACO - INLINE - ≈ 80% 2 HP 10 0 PUMP SOUTH GYM MOA TACO - INLINE - ≈ 80% 2 HP 10 0
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) FAN RM GLYCOL CIRC PUMP SOUTH GYM FAN RM MOA GLYCOL CIRC TACO - INLINE - ≈ 80% 2 HP 10 0 PUMP NORTH GYM FAN RM COIL GLYCOL CIRC TACO - INLINE - ≈ 80% 3 HP 10 0 PUMP NORTH GYM FAN RM COIL GLYCOL CIRC TACO - INLINE - ≈ 80% 3 HP 10 0 PUMP POOL MECH RM MOA POOL HEATING BELL & GOSSETT - INLINE - ≈ 80% 3/4 HP 10 - PUMP POOL MECH RM MOA POOL FILTER - - INLINE - 89.5% 20 HP 10 0 AHU FAN RM 7 CLASSROOM SUPPLY TRANE - DWDI CENTRIFUGAL ≈ 6000 CFM - 2 HP 25 0 AHU-4 FAN RM 9 CLASSROOM SUPPLY TRANE 27A AXIAL ≈ 5800 CFM - 5 HP 20 0 AHU-2 FAN RM 6 CLASSROOM SUPPLY TRANE 36 DWDI CENTRIFUGAL ≈ 9000 CFM - 3 HP 25 0 F-6 FAN RM 5 CLASSROOM SUPPLY TRANE - DWDI CENTRIFUGAL ≈ 2200 CFM - 0.75 HP 25 0 F-7 FAN RM 5 CLASSROOM SUPPLY TRANE - DWDI CENTRIFUGAL ≈ 15000 CFM - 5 HP 25 0 AHU 1-5 MECH RM 122 CLASSROOM & SHOPS SUPPLY TRANE - AXIAL ≈ 12000 CFM - 20 HP 20 0 F-34 SOUTH GYM FAN RM LITTLE GYM SUPPLY TRANE - CENTRIFUGAL ≈ 13000 CFM 89.5% 10 HP 25 0
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) AHU-35 SOUTH GYM FAN RM MOA POOL SUPPLY TRANE - DWDI CENTRIFUGAL ≈ 20000 CFM 85% 15 HP 25 0 AHU-1 BENSON BLDG S CLASSROOM SUPPLY PACE - CENTRIFUGAL 18000 CFM 91% 15 HP 25 0 AHU-2 BENSON BLDG N CLASSROOM SUPPLY PACE - CENTRIFUGAL 18000 CFM 91% 15 HP 25 0 AHU-3 BOILER RM CLASSROOM SUPPLY MCQUAY - PLUG ≈ 6000 CFM 88% 5 HP 25 ≈15 AHU-1 PENTHOUSE AHU-1 CLASSROOM/OFFICE SUPPLY GOVERNAIR - PLUG 18000 CFM 91% 25 HP 25 ≈ 15 AHU-8 PENTHOUSE AHU-8 LIBRARY SUPPLY GOVERNAIR - PLUG 18000 CFM 91% 25 HP 25 ≈ 15 AHU-1 COMMONS FAN RM KITCHEN & WEIGHT RM SUPPLY MCQUAY - PLUG 14825 CFM 93.6% 20 HP 25 ≈ 20 AHU-4 COMMONS FAN RM COMMONS SUPPLY MCQUAY - PLUG 10000 CFM 93.6% 10 HP 25 ≈ 20 AHU-5 THEATER FAN RM AUDITORIUM SUPPLY MCQUAY - PLUG 28000 CFM 93.6% 20 HP 25 ≈ 20 AHU-6 THEATER FAN RM MUSIC/ CHORAL SUPPLY MCQUAY - PLUG 17000 CFM 93% 20 HP 25 ≈ 20 AHU-7 THEATER FAN RM DANCE/ DRAMA SUPPLY MCQUAY - PLUG 12000 CFM 93% 15 HP 25 ≈ 20 AHU-2 MECH RM 122 CLASSROOMS SUPPLY MCQUAY - PLUG 15000 CFM 93.6% 20 HP 25 ≈ 20
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) AHU-8 NORTH GYM FAN RM GYM SUPPLY MCQUAY - PLUG 28000 CFM 93.6% 25 HP 25 24 RTU-1 ROOF TEACHER LOUNGE SUPPLY AAON - - 3730 CFM - 2 HP - - RTU-2 ROOF TEACHER LOUNGE SUPPLY AAON - - 6820 CFM - 3 HP - - RF-1 BENSON BLDG S CLASSROOM RETURN JOY AXIVANE AXIAL 8100 CFM 91.7% 3 HP 20 0 RF-2 BENSON BLDG S CLASSROOM RETURN JOY AXIVANE AXIAL 8100 CFM 91.7% 3 HP 20 0 RF-3 BENSON BLDG N CLASSROOM RETURN JOY AXIVANE AXIAL 8100 CFM 91.7% 3 HP 20 0 RF-4 BENSON BLDG N CLASSROOM RETURN JOY AXIVANE AXIAL 8100 CFM 91.7% 3 HP 20 0 RF-5 THEATER FAN RM AUDITORIUM RETURN GREENHECK - AXIAL 27000 CFM ≈ 85% 15 HP 20 ≈ 15 RF-6 THEATER FAN RM MUSIC/ CHORAL RETURN GREENHECK - AXIAL 16000 CFM ≈ 85% 7.5 HP 20 ≈ 15 RF-7 THEATER FAN RM DANCE. DRAMA RETURN GREENHECK - AXIAL 11000 CFM ≈ 85% 5 HP 20 ≈ 15 RF-1 COMMONS FAN RM KITCHEN & WEIGHT RM RETURN GREENHECK - AXIAL 8000 CFM ≈ 85% 5 HP 20 ≈ 15
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) RF-8 NORTH POOL/GYM FAN RM GYM RETURN MCQUAY - INTEGRAL TO AHU-8 28800 CFM 93% 20 HP 25 24 EF-1 ROOF KITCHEN RANGE HOOD EXHAUST GREENHECK - DOWNBLAST 4250 CFM ≈ 80% 3 HP 25 ≈ 15 EF-1 ROOF DATA RM EXHAUST GREENHECK - DOWNBLAST 560 CFM ≈ 80% 1/6 HP 25 EF-2 ROOF SCIENCE FUME HOODS EXHAUST GREENHECK - DOWNBLAST 1000 CFM ≈ 80% 1/2 HP 25 - EF-3 ROOF SCIENCE FUME HOODS EXHAUST GREENHECK - DOWNBLAST 1000 CFM ≈ 80% 1/2 HP 25 - EF-4 ROOF SCIENCE FUME HOODS EXHAUST GREENHECK - DOWNBLAST 2530 CFM ≈ 80% 1/2 HP 25 - EF-5 ROOF SCIENCE FUME HOODS EXHAUST GREENHECK - DOWNBLAST 1000 CFM ≈ 80% 1/2 HP 25 - EF-6 ROOF RESTROOM EXHAUST GREENHECK - DOWNBLAST 300 CFM ≈ 80% 1/4 HP 25 - EF-7 ROOF ELECTRICAL RM EXHAUST GREENHECK - DOWNBLAST 560 CFM ≈ 80% 1/6 HP 25 - EF-8 ROOF RESTROOM EXHAUST GREENHECK - DOWNBLAST 650 CFM ≈ 80% 1/6 HP 25 - EF-9 COMM CLOSET COMM CLOSET EXHAUST - - DOWNBLAST 500 CFM ≈ 80% 1/4 HP 25 -
East High School Final Energy Audit Report Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15 MAJOR EQUIPMENT INVENTORY TAG LOCATION FUNCTION MAKE MODEL TYPE CAPACITY EFFICIENCY MOTOR SIZE ASHRAE SERVICE LIFE (YEARS) ESTIMATED REMAINING USEFUL LIFE (YEARS) EF-1 ROOF RESTROOM EXHAUST GREENHECK - DOWNBLAST 1200 CFM ≈ 80% 1/4 HP 25 - EF-2 ROOF RESIDENTIAL RANGE HOODS EXHAUST GREENHECK - DOWNBLAST 1800 CFM ≈ 80% 1/2 HP 25 - EF-3 ROOF SCIENCE FUME HOODS EXHAUST GREENHECK - DOWNBLAST 1000 CFM ≈ 80% 1/2 HP 25 - EF-4 ROOF RESIDENTIAL RANGE HOODS EXHAUST GREENHECK - DOWNBLAST 1500 CFM ≈ 80% 1/2 HP 25 - EF-5 ROOF RESTROOMS EXHAUST GREENHECK - DOWNBLAST 1000 CFM ≈ 80% 1/4 HP 25 - EF-6 ROOF - GREENHECK - DOWNBLAST 500 CFM ≈ 80% 1/4 HP 25 -
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
Appendix D
Energy Conservation Measures
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
The following tables consist of raw output data from the AkWarm Commercial program used to model
energy costs and calculate energy savings and financial ratios. These tables represent all of the energy
conservation measures calculated and considered by the energy audit team. However, ECMs included in
the Executive Summary and Section VIII are recommended by the energy audit team due to their viable
financial ratios (SIR>1) or due to their value added.
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
1 Setback Thermostat:
School
Implement a Heating
Temperature
Unoccupied Setback to
60.0 deg F for the
School space.
$34,097 $2,000 216.87 0.1
2 Setback Thermostat:
Physical Education
Bldg (not including
Pool)
Implement a Heating
Temperature
Unoccupied Setback to
60.0 deg F for the
Physical Education
Bldg (not including
Pool) space.
$6,807 $2,000 43.29 0.3
3 Lighting: Storage
strip (2) T12 MAG
Add new Occupancy
Sensor
$179 $150 18.39 0.8
4 Lighting: Corridor
2'X2' (2) T12 MAG
NL
Add new Manual
Switching
$150 $150 15.43 1
5 Lighting: Corridor
1'X4' (2) T12 MAG
NL
Add new Clock Timer
or Other Scheduling
Control
$151 $150 15.45 1
6 Other Electrical: Ice
Cream Vending
Machine
Add new Other
Controls
$480 $500 14.79 1
7 Other Electrical:
Soda Machine
Add new Other
Controls
$2,479 $2,750 13.87 1.1
8 Lighting: Office (2)
T8
Replace with 7 FLUOR
(2) T8 4' F32T8 32W
Standard Program
StdElectronic and Add
new Occupancy Sensor
$253 $300 12.78 1.2
9 Lighting: Restroom
Troffer (4) T8 ELEC
Add new Occupancy
Sensor
$115 $150 11.79 1.3
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
10 Lighting: Corridor
2'X4' (2) T8 ELEC
NL
Add new Occupancy
Sensor, Clock Timer or
Other Scheduling
Control
$70 $100 10.78 1.4
11 Lighting: Class (3)
T12 Mag Wrap, WS
NL
Replace with 4 FLUOR
(3) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
and Add new Manual
Switching, Occupancy
Sensor
$528 $800 10.15 1.5
12 Lighting: Class NW
(3) T8 Troffer Elec
Add new Daylight
Sensor
$345 $600 8.72 1.7
13 Lighting: Office 2'
dia, pendant, (6)
40W CFL
Add new Occupancy
Sensor
$133 $150 7.07 1.1
14 Lighting: NW Class
(3) T8 Troffer ELEC
Add new Occupancy
Sensor and Improve
Manual Switching
$536 $1,200 6.88 2.2
15 Lighting: Class Tech
Labs (3) T12 Mag
Para, WS NL
Replace with 6 FLUOR
(3) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
and Add new Manual
Switching, Occupancy
Sensor
$599 $1,350 6.73 2.3
16 Lighting: Utility (2)
T12 MAG NL
Replace with 2 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new Manual
Switching
$169 $400 6.50 2.4
17 Lighting: Locker
room (2) T12, MAG
wet-location, WS
NL
Replace with 4 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new Manual
Switching, Occupancy
Sensor
$311 $800 5.98 2.6
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
18 Lighting: Class (3)
T8 Elec Wrap, WS
Add new Occupancy
Sensor
$58 $150 5.82 2.6
19 Lighting: Corridor
Troffer (4) T8 ELEC
Add new Occupancy
Sensor
$224 $600 5.74 2.7
20 Lighting: Restroom
Cove (1) T8 ELEC
Add new Occupancy
Sensor
$52 $150 5.37 2.9
21 Lighting: Storage
(3) T8
Add new Occupancy
Sensor
$459 $1,350 5.16 2.9
22 Lighting: Corridor
Troffer (3) T8 ELEC
Add new Occupancy
Sensor
$955 $2,850 5.16 3
23 Lighting: Class Can
40W halogen
Improve Occupancy
Sensor
$44 $150 4.47 3.4
24 Lighting: Restroom
NE-R1, NE-R2
Troffer (4) T8 ELEC
Replace with 8 FLUOR
(2) T8 4' F32T8 32W
Standard Program
StdElectronic and Add
new Occupancy Sensor
$206 $700 4.45 3.4
25 Lighting: Class (3)
T8 Elec Wrap
Add new Occupancy
Sensor, Daylight
Sensor
$313 $1,100 4.32 3.5
26 Lighting: Corridor
Troffer (4) T12
MAG
Replace with 25
FLUOR (4) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic
and Add new
Occupancy Sensor
$1,176 $4,200 4.31 3.6
27 Lighting: Corridor
2'X4' (4) T12 MAG
Replace with 126
FLUOR (4) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic
and Add new
Occupancy Sensor
$5,928 $21,250 4.29 3.6
28 Lighting: Corridor
2'X4' (3) T8 ELEC
Add new Occupancy
Sensor
$121 $450 4.14 3.7
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
29 Lighting: Gym Strip
(2) T12 MAG NL
Replace with 6 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new Manual
Switching
$322 $1,200 4.07 3.7
30 Lighting: Corridor
Strip (3) T8 ELEC
Add new Occupancy
Sensor
$38 $150 3.92 3.9
31 Lighting: Class (3)
T8 Elec Wrap, WS,
bi-lvl
Add new Occupancy
Sensor, Daylight
Sensor
$289 $1,250 3.51 4.3
32 Lighting: Gym PE
105 Recessed 2'X2'
MH NL
Replace with 2 FLUOR
(6) T5 45.2" F54W/T5
HO Standard (3)
HighEfficElectronic
and Add new Manual
Switching, Multi-Level
Switch
$517 $2,300 3.41 4.4
33 Lighting: Class (3)
T8 Elec Wrap, WS,
bi-lvl
Add new Occupancy
Sensor
$200 $900 3.36 4.5
34 Lighting: Corridor
2'X2' (2) T12 MAG
Replace with 40
FLUOR (2) T8 4'
F32T8 32W Standard
HighEfficElectronic
$1,509 $7,050 3.29 4.7
35 Lighting: Storage
wrap (4) T12 MAG
Replace with 10
FLUOR (4) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic
and Add new
Occupancy Sensor
$348 $1,650 3.25 4.7
36 Lighting: Class
C206 4' Ind (3) T8
ELEC
Add new Occupancy
Sensor
$32 $150 3.25 4.7
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
37 Lighting: Corridor
2'X4' (3) T12 MAG
Replace with 6 FLUOR
(3) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$222 $1,050 3.25 4.7
38 Lighting: Corridor
2'X4' (2) T8 ELEC
Add new Occupancy
Sensor
$95 $450 3.23 4.8
39 Lighting: Class (3)
T8 Elec Troffer, WS
Add new Occupancy
Sensor
$87 $450 2.94 5.2
40 Lighting: Corridor
(3) T12 wrap
Replace with 6 FLUOR
(3) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$197 $1,050 2.89 5.3
41 Lighting: Corridor
2'X2' (2) T12 MAG
NL
Replace with 3 FLUOR
(2) T12 F40T12 40W
U-Tube Standard
Magnetic
$83 $450 2.83 5.4
42 Lighting: Office (3)
T8
Replace with 75
FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
and Add new
Occupancy Sensor
$351 $1,950 2.73 5.6
43 Lighting: Corridor
4'X4' (8) T12 MAG
Replace with 42
FLUOR (8) T8 4'
F32T8 32W Standard
(4) Program
HighEfficElectronic
$3,263 $18,900 2.66 5.8
44 Other Electrical:
Snack Machine
Add new Other
Controls
$211 $1,250 2.59 5.9
45 Lighting: Class (3)
T8 Elec Troffer, WS
Bi-lvl
Add new Occupancy
Sensor
$25 $150 2.50 6.1
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
46 Lighting: Pool
Lobby Strip (1) T12
MAG
Replace with 54
FLUOR T8 4' F32T8
32W Standard Program
HighEfficElectronic
$833 $5,400 2.37 6.5
47 Lighting: Class (3)
T8 ELEC Dir/Ind
Add new Multi-Level
Switch
$234 $1,500 2.37 6.4
48 Lighting: Restroom
(2) T12 wrap
Replace with 14
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$368 $2,550 2.22 6.9
49 Lighting: Locker
room (2) T12, MAG
wet-location, WS
Replace with 88
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$1,931 $14,000 2.12 7.3
50 Lighting: Utility
60W incand.
Replace with 3 FLUOR
CFL, A Lamp 9W
$33 $75 2.07 2.3
51 Lighting: Corridor
Strip (2) T12 MAG
Replace with 6 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$141 $1,050 2.07 7.4
52 Lighting: Corridor
Troffer (4) T12
ELEC
Replace with 8 FLUOR
(4) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
and Add new
Occupancy Sensor
$180 $1,350 2.06 7.5
53 Lighting: Corridor
2'X4' (4) T12 ELEC
Replace with 38
FLUOR (4) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic
and Add new
Occupancy Sensor
$857 $6,450 2.04 7.5
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
54 Lighting: Storage
strip (4) T12 MAG
Replace with FLUOR
(4) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
$14 $100 2.07 7.4
55 Lighting: Corridor
1'X4' (2) T12 MAG
Replace with 60
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$1,166 $9,000 1.99 7.7
56 Lighting: Corridor
1'X4' (2) T12 MAG
NL
Replace with 3 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$58 $450 1.99 7.7
57 Lighting: M2
DIR/IND 1'X4' (2)
T8 ELEC
Add new Multi-Level
Switch
$19 $150 1.93 7.8
58 Lighting: Class (3)
T12 Mag Wrap, WS
Replace with 347
FLUOR (3) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic
and Add new
Occupancy Sensor,
Daylight Sensor
$6,752 $56,100 1.83 8.3
59 Lighting: Class (2)
T8 Elec, WS
Replace with 43
FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
and Add new
Occupancy Sensor
$102 $900 1.74 8.8
60 Lighting: Storage
1'X4' (2) T12 MAG
Replace with 10
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$185 $1,650 1.72 8.9
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
61 Lighting: Class Tech
Labs (3) T12 Mag
Para, WS
Replace with 106
FLUOR (3) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic
and Add new
Occupancy Sensor
$1,905 $16,950 1.70 8.9
62 Lighting: Office (3)
T12, MAG
Replace with 5 FLUOR
(3) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$107 $900 1.66 8.4
63 Lighting: Corridor
4'X4' (8) T12 ELEC
Replace with 4 FLUOR
(8) T8 4' F32T8 32W
Standard (4) Program
HighEfficElectronic
and Add new
Occupancy Sensor
$224 $2,100 1.64 9.4
64 HVAC And DHW Install 2 exhaust stack
economizers. Basis of
ECM is Enervex IPVB-
ECO 500.
$7,094 $70,000 1.63 9.9
65 Lighting: Corridor
2'X2' (2) T12 ELEC
Replace with 4 FLUOR
(2) T12 F40T12 40W
U-Tube Standard
StdElectronic
$62 $600 1.58 9.8
66 Lighting: Storage
(2) T8
Add new Occupancy
Sensor
$46 $450 1.56 9.9
67 Lighting: Storage
strip (2) T12 MAG
Replace with 6 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$105 $1,050 1.53 10
68 Lighting: Corridor
Can
Replace with 8 LED
8W Module
StdElectronic
$130 $400 1.53 3.1
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
69 Lighting: Utility (4)
T12
Replace with 2 FLUOR
(4) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
$29 $300 1.51 10.2
70 Lighting: Gym Strip
(2) T12 MAG
Replace with 84
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$1,117 $12,600 1.35 11.3
71 Lighting: Corridor
(2) T8 troffer
Add new Occupancy
Sensor
$13 $150 1.33 11.6
72 Exterior Door:
Black Metal Doors
Remove existing door
and install standard pre-
hung U-0.16 insulated
door, including
hardware.
$437 $7,379 1.31 16.9
73 Lighting: Corridor
4'X4' (6) T8 ELEC
Add new Occupancy
Sensor
$25 $300 1.31 11.8
74 Lighting: Corridor
Can
Replace with 4 LED
8W Module
StdElectronic
$56 $200 1.30 3.6
75 Lighting: Gym
Recessed 2'X2' MH
Replace with 36
FLUOR (6) T5 45.2"
F54W/T5 HO Standard
(3) HighEfficElectronic
and Add new Multi-
Level Switch
$2,958 $37,000 1.23 12.5
76 Lighting:
Classrooms (2) T12
Mag Wrap, WS
Replace with 494
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor,
Daylight Sensor and
Improve Multi-Level
Switch
$7,363 $91,100 1.23 12.4
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
77 Lighting: Corridor
Troffer (2) T12
MAG
Replace with FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$23 $300 1.20 12.8
78 Lighting: Office (2)
2' T8
Add new Occupancy
Sensor
$12 $150 1.21 12.6
79 Lighting: Class #91
(2) T12 Mag Wrap,
WS
Replace with 45
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$564 $7,200 1.19 12.8
80 Lighting: Class
NWL122 (2) T12
Mag Troffer, WS
Replace with 19
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$238 $3,150 1.15 13.2
81 Lighting: Class (4)
3' T12 MAG, 3'X3'
troffer, WS
Replace with 614
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$9,572 $128,950 1.13 13.5
82 Lighting: Office
3'X3' troffer (4) T12,
MAG
Replace with 18
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$309 $4,200 1.12 13.6
83 Lighting: Corridor
(2) T8 troffer, WS
Add new Occupancy
Sensor
$11 $150 1.10 14
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
84 Lighting: Corridor
3'X3' (4) F30T12
MAG
Replace with 27
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$768 $10,800 1.09 14.1
85 Lighting: Storage
2'X2' (2) T12 40W
U
Replace with 5 FLUOR
(2) T12 F40T12 40W
U-Tube Standard
Magnetic and Add new
Occupancy Sensor
$62 $900 1.06 14.6
86 Lighting: Gym PE
105 Recessed 2'X2'
MH
Replace with 24
FLUOR (6) T5 45.2"
F54W/T5 HO Energy-
Saver (3)
HighEfficElectronic
and Add new Multi-
Level Switch
$1,803 $25,000 1.05 13.9
87 Air Tightening Perform air sealing to
reduce air leakage by
20%.
$11,485 $100,000 1.03 8.7
88 Lighting: Pool 2'X4'
(4) T12 ELEC
Replace with 3 FLUOR
(4) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
$31 $450 1.03 14.8
89 Lighting: Corridor
Troffer (2) T12
ELEC
Replace with 6 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$68 $1,050 0.99 15.5
90 Lighting: Storage
(1) T12
Replace with 9 FLUOR
T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$84 $1,350 0.96 16
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
91 Lighting: Office (2)
T12, MAG
Replace with 27
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$309 $4,950 0.95 16
92 Lighting: Corridor
1'X4' (3) T12 ELEC
Replace with 11
FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
$100 $1,650 0.94 16.4
93 Lighting: Corridor
(1) T8 ELEC Wall
mount
Add new Occupancy
Sensor
$9 $150 0.91 16.7
94 Lighting: Restroom
2'X2' (2) T12 MAG
Replace with 30
FLUOR T12 F40T12
40W U-Tube Standard
EfficMagnetic and Add
new Occupancy Sensor
$336 $5,700 0.91 17
95 Lighting: Utility
Surface (2) T12
MAG
Replace with 62
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$547 $9,300 0.90 17
96 Lighting: Office (3)
T12, ELEC
Replace with 38
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$417 $7,050 0.90 16.9
97 Garage Door: Wood
Overhead Doors
Replace existing garage
door with R-7, 2"
polyurethane core
replacement door.
$182 $4,961 0.81 27.3
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
98 Lighting: Class (4)
3' T12 MAG, 3'X3'
troffer, WS, bi-lvl
Replace with 51
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$555 $10,650 0.79 19.2
99 Lighting: Class NE
(2) T12 Elec Wrap,
WS
Replace with 63
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor,
Daylight Sensor
$558 $12,950 0.65 23.2
100 Lighting: Office (2)
T12, MAG, occ
Replace with 2 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$12 $300 0.61 24.7
101 Lighting: Class
Band/Choir/Orchestr
a 2'X2' recessed MH
Replace with 26
FLUOR (6) T5 45.2"
F54W/T5 HO Energy-
Saver (3)
HighEfficElectronic
and Add new
Occupancy Sensor,
Multi-Level Switch
$1,060 $26,450 0.61 24.9
102 Lighting: Class
S119 (2) T12 Mag
Wrap, WS
Replace with 5 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$30 $750 0.61 24.9
103 Lighting: Utility (3)
T12
Replace with 3 FLUOR
(3) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$18 $450 0.61 25
104 Lighting: Wallpack
HPS
Replace with 16 LED
20W Module
StdElectronic
$458 $12,800 0.55 28
105 Lighting: Wallpack
MH
Replace with 20 LED
20W Module
StdElectronic
$572 $16,000 0.55 28
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
106 Lighting: Canopy
HPS
Replace with 32 LED
25W Module
StdElectronic
$864 $25,600 0.52 29.6
107 Lighting: Class Can
40W halogen
Replace with 27 LED
8W Module
StdElectronic
$143 $1,350 0.50 9.4
108 Lighting: Utility (1)
T12
Replace with 6 FLUOR
T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$20 $600 0.50 30.6
109 Lighting: Storage
strip (2) T12 MAG
Replace with 2 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$6 $200 0.46 33.3
110 Lighting: Storage
1'X4' (3) T12 MAG,
occ
Replace with 10
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$41 $1,500 0.42 36.3
111 Lighting: Class (2)
3' T12 MAG, 1'X3'
troffer
Replace with 47
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$258 $9,850 0.40 38.1
112 Lighting: Canopy
MH
Replace with 36 LED
20W Module
StdElectronic
$735 $28,800 0.39 39.2
113 Lighting: Pool 2'X2'
MH
Replace with 48
FLUOR (6) T5 45.2"
F54W/T5 HO Standard
(3) HighEfficElectronic
and Add new Multi-
Level Switch and
Improve Manual
Switching
$1,120 $49,000 0.35 43.8
114 Lighting:
Auditorium Cans,
worklights, PA116
Replace with 27
FLUOR CFL, A Lamp
15W
$50 $675 0.35 13.6
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
115 Exterior Door:
Insulated Metal
Door HalfLite
Remove existing door
and install standard pre-
hung U-0.16 insulated
door, including
hardware.
$82 $5,329 0.34 65
116 Lighting: Office
1'X3' troffer (2) T12,
MAG
Replace with 3 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
and Add new
Occupancy Sensor
$16 $750 0.33 45.6
117 Lighting: Storage
1'X4' (2) T12 MAG,
occ
Replace with 85
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$255 $12,750 0.31 50.1
118 Lighting: Corridor
6" Can
Replace with 13 LED
4W Module
StdElectronic
$37 $1,950 0.29 53.3
119 Window/Skylight:
Single Pane Entry
(Glass Door and
Windows)
Replace existing
windows with Low
E/argon fiberglass or
insulated vinyl
windows
$755 $43,650 0.28 57.8
120 Lighting: Class NW
(2) 3' T12 MAG,
1'X3' troffer
Replace with 12
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
and Add new
Occupancy Sensor
$46 $2,550 0.27 55.5
121 Lighting: Utility
Surface (2) T12
ELEC
Replace with 10
FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
$26 $1,500 0.27 56.9
122 Below- (part or all)
Grade Wall: NW
Area 5 - Lower
Floor - Wall 1
Install R-20 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$1,180 $112,775 0.23 95.6
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
123 Below- (part or all)
Grade Wall: Benny
Benson (Area 4) -
Wall
Install R-20 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$3,935 $377,990 0.23 96.1
124 Below- (part or all)
Grade Wall:
Physical Education
(Area 10) - Wall
Install R-20 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$4,925 $477,662 0.23 97
125 Below- (part or all)
Grade Wall:
Original Walls
Install R-20 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$4,089 $397,194 0.23 97.1
126 Below- (part or all)
Grade Wall: Main
Boiler Rm Wall
Install R-15 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$133 $14,859 0.20 111.8
127 Window/Skylight:
School Double Pane
Windows - Not
South
Replace existing
windows with Low
E/argon fiberglass or
insulated vinyl
windows
$3,828 $362,850 0.17 94.8
128 Window/Skylight:
School Double Pane
Windows - South
Replace existing
windows with Low
E/argon fiberglass or
insulated vinyl
windows
$1,111 $111,000 0.16 99.9
TOTAL $153,108 $2,867,198 0.79 18.7
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
ENERGY AUDIT REPORT – ENERGY EFFICIENT RECOMMENDATIONS
1. Building Envelope
Insulation
Rank Location Existing Type/R-Value Recommendation
Type/R-Value
Installed
Cost
Annual
Energy
Savings
122 Below- (part or all)
Grade Wall: NW
Area 5 - Lower
Floor - Wall 1
Wall Type: Strapped
Masonry
Insul. Sheathing: None
Masonry Wall: 8" Poured
Concrete
Framed Wall: 2 x 3, 16"
on center
EPS (Beadboard), 2 inches
Modeled R-Value: 9.1
Install R-20 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$112,775 $1,180
123 Below- (part or all)
Grade Wall: Benny
Benson (Area 4) -
Wall
Wall Type: Strapped
Masonry
Insul. Sheathing: None
Masonry Wall: 8" Poured
Concrete
Framed Wall: 2 x 3, 16"
on center
EPS (Beadboard), 2 inches
Modeled R-Value: 9.1
Install R-20 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$377,990 $3,935
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
124 Below- (part or all)
Grade Wall:
Physical Education
(Area 10) - Wall
Wall Type: Strapped
Masonry
Insul. Sheathing: None
Masonry Wall: 8" Poured
Concrete
Framed Wall: 2 x 3, 16"
on center
EPS (Beadboard), 2 inches
Modeled R-Value: 9.1
Install R-20 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$477,662 $4,925
125 Below- (part or all)
Grade Wall:
Original Walls
Wall Type: Strapped
Masonry
Insul. Sheathing: None
Masonry Wall: 8" Poured
Concrete
Framed Wall: 2 x 3, 16"
on center
EPS (Beadboard), 2 inches
Modeled R-Value: 9.1
Install R-20 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$397,194 $4,089
126 Below- (part or all)
Grade Wall: Main
Boiler Rm Wall
Wall Type: Masonry
Insul. Sheathing: EPS
(Beadboard), 2 inches
Masonry Wall: 8" Poured
Concrete
Modeled R-Value: 9.5
Install R-15 rigid foam
board to interior or
exterior side of wall.
Does not include cost
of coverings.
$14,859 $133
Exterior Doors – Replacement
Rank Location Size/Type/Condition Recommendation Installed
Cost
Annual
Energy
Savings
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
72 Exterior Door:
Black Metal Doors
Door Type: R-1 Door
(non-standard, not
exterior)
Modeled R-Value: 1
Remove existing door
and install standard
pre-hung U-0.16
insulated door,
including hardware.
$7,379 $437
97 Garage Door: Wood
Overhead Doors
Door Type: 1 3/8"
sectional door, EPS core,
no thermal break
Insulating Blanket: None
Modeled R-Value: 2.6
Replace existing
garage door with R-7,
2" polyurethane core
replacement door.
$4,961 $182
115 Exterior Door:
Insulated Metal
Door HalfLite
Door Type: Metal - EPS
insulation; half-lite
Modeled R-Value: 3
Remove existing door
and install standard
pre-hung U-0.16
insulated door,
including hardware.
$5,329 $82
Windows and Glass Doors – Replacement
Rank Location Size/Type/Condition Recommendation Installed
Cost
Annual
Energy
Savings
119 Window/Skylight:
Single Pane Entry
(Glass Door and
Windows)
Glass: Single, Glass
Frame: Aluminum, No
Thermal Break
Spacing Between Layers:
Half Inch
Gas Fill Type: Air
Modeled U-Value: 1.30
Solar Heat Gain
Coefficient including
Window Coverings: 0.52
Replace existing
windows with Low
E/argon fiberglass or
insulated vinyl
windows
$43,650 $755
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
127 Window/Skylight:
School Double Pane
Windows - Not
South
Glass: Double, glass
Frame: Aluminum, No
Thermal Break
Spacing Between Layers:
Half Inch
Gas Fill Type: Air
Modeled U-Value: 0.81
Solar Heat Gain
Coefficient including
Window Coverings: 0.46
Replace existing
windows with Low
E/argon fiberglass or
insulated vinyl
windows
$362,850 $3,828
128 Window/Skylight:
School Double Pane
Windows - South
Glass: Double, glass
Frame: Aluminum, No
Thermal Break
Spacing Between Layers:
Half Inch
Gas Fill Type: Air
Modeled U-Value: 0.81
Solar Heat Gain
Coefficient including
Window Coverings: 0.46
Replace existing
windows with Low
E/argon fiberglass or
insulated vinyl
windows
$111,000 $1,111
Air Leakage
Rank Location Estimated Air Leakage Recommended Air
Leakage Target
Installed
Cost
Annual
Energy
Savings
87 Air Tightness estimated
as: 1.20 cfm/ft2 of above-
grade shell area at 75
Pascals
Perform air sealing to
reduce air leakage by
20%.
$100,000 $11,485
2. Mechanical Equipment
Mechanical
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
Rank Recommendation Installed
Cost
Annual
Energy
Savings
64 Install 2 exhaust stack economizers. Basis of ECM is Enervex IPVB-ECO
500.
$70,000 $7,094
Setback Thermostat
Rank Location Size/Type/Condition Recommendation Installed
Cost
Annual
Energy
Savings
1 School Existing Unoccupied
Heating Setpoint: 70.0 deg
F
Implement a Heating
Temperature
Unoccupied Setback
to 60.0 deg F for the
School space.
$2,000 $34,097
2 Physical Education
Bldg (not including
Pool)
Existing Unoccupied
Heating Setpoint: 70.0 deg
F
Implement a Heating
Temperature
Unoccupied Setback
to 60.0 deg F for the
Physical Education
Bldg (not including
Pool) space.
$2,000 $6,807
Ventilation
Rank Recommendation Cost Annual
Energy
Savings
3. Appliances and Lighting
Lighting Fixtures and Controls
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
3 Storage strip (2) T12
MAG
2 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic
Add new Occupancy
Sensor
$150 $179
4 Corridor 2'X2' (2)
T12 MAG NL
3 FLUOR (2) T12
F40T12 40W U-Tube
Standard Magnetic
Add new Manual
Switching
$150 $150
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
5 Corridor 1'X4' (2)
T12 MAG NL
3 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic
Add new Clock Timer
or Other Scheduling
Control
$150 $151
8 Office (2) T8 7 FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
Replace with 7 FLUOR
(2) T8 4' F32T8 32W
Standard Program
StdElectronic and Add
new Occupancy Sensor
$300 $253
9 Restroom Troffer
(4) T8 ELEC
8 FLUOR (4) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Add new Occupancy
Sensor
$150 $115
10 Corridor 2'X4' (2)
T8 ELEC NL
2 FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
Add new Occupancy
Sensor, Clock Timer or
Other Scheduling
Control
$100 $70
11 Class (3) T12 Mag
Wrap, WS NL
4 FLUOR (3) T12 4'
F40T12 40W Standard
(2) Magnetic
Replace with 4 FLUOR
(3) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic and
Add new Manual
Switching, Occupancy
Sensor
$800 $528
12 Class NW (3) T8
Troffer Elec
208 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Occupancy Sensor,
Multi-Level Switch
Add new Daylight
Sensor
$600 $345
13 Office 2' dia,
pendant, (6) 40W
CFL
4 FLUOR (6) CFL,
Spiral 42 W with Manual
Switching
Add new Occupancy
Sensor
$150 $133
14 NW Class (3) T8
Troffer ELEC
74 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching,
Multi-Level Switch
Add new Occupancy
Sensor and Improve
Manual Switching
$1,200 $536
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
15 Class Tech Labs (3)
T12 Mag Para, WS
NL
6 FLUOR (3) T12 4'
F40T12 40W Standard
(2) Magnetic
Replace with 6 FLUOR
(3) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic and
Add new Manual
Switching, Occupancy
Sensor
$1,350 $599
16 Utility (2) T12
MAG NL
2 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic
Replace with 2 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Manual
Switching
$400 $169
17 Locker room (2)
T12, MAG wet-
location, WS NL
4 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic
Replace with 4 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Manual
Switching, Occupancy
Sensor
$800 $311
18 Class (3) T8 Elec
Wrap, WS
9 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching
Add new Occupancy
Sensor
$150 $58
19 Corridor Troffer (4)
T8 ELEC
26 FLUOR (4) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Add new Occupancy
Sensor
$600 $224
20 Restroom Cove (1)
T8 ELEC
14 FLUOR T8 4' F32T8
32W Standard Program
StdElectronic with Clock
Timer or Other
Scheduling Control
Add new Occupancy
Sensor
$150 $52
21 Storage (3) T8 52 FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
with Manual Switching
Add new Occupancy
Sensor
$1,350 $459
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
22 Corridor Troffer (3)
T8 ELEC
150 FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Add new Occupancy
Sensor
$2,850 $955
23 Class Can 40W
halogen
27 INCAN A Lamp, Std
40W with Manual
Switching, Occupancy
Sensor
Improve Occupancy
Sensor
$150 $44
24 Restroom NE-R1,
NE-R2 Troffer (4)
T8 ELEC
8 FLUOR (4) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Replace with 8 FLUOR
(2) T8 4' F32T8 32W
Standard Program
StdElectronic and Add
new Occupancy Sensor
$700 $206
25 Class (3) T8 Elec
Wrap
81 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching,
Multi-Level Switch
Add new Occupancy
Sensor, Daylight Sensor
$1,100 $313
26 Corridor Troffer (4)
T12 MAG
25 FLUOR (4) T12 4'
F40T12 40W Standard
(2) Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 25
FLUOR (4) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic and
Add new Occupancy
Sensor
$4,200 $1,176
27 Corridor 2'X4' (4)
T12 MAG
126 FLUOR (4) T12 4'
F40T12 40W Standard
(2) Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 126
FLUOR (4) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic and
Add new Occupancy
Sensor
$21,250 $5,928
28 Corridor 2'X4' (3)
T8 ELEC
19 FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Add new Occupancy
Sensor
$450 $121
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
29 Gym Strip (2) T12
MAG NL
6 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic
Replace with 6 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Manual
Switching
$1,200 $322
30 Corridor Strip (3) T8
ELEC
6 FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Add new Occupancy
Sensor
$150 $38
31 Class (3) T8 Elec
Wrap, WS, bi-lvl
63 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching,
Multi-Level Switch
Add new Occupancy
Sensor, Daylight Sensor
$1,250 $289
32 Gym PE 105
Recessed 2'X2' MH
NL
2 MH 400 Watt
Magnetic
Replace with 2 FLUOR
(6) T5 45.2" F54W/T5
HO Standard (3)
HighEfficElectronic and
Add new Manual
Switching, Multi-Level
Switch
$2,300 $517
33 Class (3) T8 Elec
Wrap, WS, bi-lvl
87 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching,
Multi-Level Switch
Add new Occupancy
Sensor
$900 $200
34 Corridor 2'X2' (2)
T12 MAG
40 FLUOR (2) T12
F40T12 40W U-Tube
Standard Magnetic with
Clock Timer or Other
Scheduling Control
Replace with 40
FLUOR (2) T8 4'
F32T8 32W Standard
HighEfficElectronic
$7,050 $1,509
35 Storage wrap (4)
T12 MAG
10 FLUOR (4) T12 4'
F40T12 40W Standard
(2) Magnetic with
Manual Switching
Replace with 10
FLUOR (4) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,650 $348
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
36 Class C206 4' Ind
(3) T8 ELEC
5 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching
Add new Occupancy
Sensor
$150 $32
37 Corridor 2'X4' (3)
T12 MAG
6 FLUOR (3) T12 4'
F40T12 40W Standard
Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 6 FLUOR
(3) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,050 $222
38 Corridor 2'X4' (2)
T8 ELEC
22 FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Add new Occupancy
Sensor
$450 $95
39 Class (3) T8 Elec
Troffer, WS
18 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching
Add new Occupancy
Sensor
$450 $87
40 Corridor (3) T12
wrap
6 FLUOR (3) T12 4'
F40T12 40W Standard
Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 6 FLUOR
(3) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,050 $197
41 Corridor 2'X2' (2)
T12 MAG NL
3 FLUOR (2) T12
F40T12 40W U-Tube
Standard Magnetic
Replace with 3 FLUOR
(2) T12 F40T12 40W
U-Tube Standard
Magnetic
$450 $83
42 Office (3) T8 75 FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
with Manual Switching
Replace with 75
FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
and Add new
Occupancy Sensor
$1,950 $351
43 Corridor 4'X4' (8)
T12 MAG
42 FLUOR (8) T12 4'
F40T12 40W Standard
(4) Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 42
FLUOR (8) T8 4'
F32T8 32W Standard
(4) Program
HighEfficElectronic
$18,900 $3,263
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
45 Class (3) T8 Elec
Troffer, WS Bi-lvl
13 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching,
Multi-Level Switch
Add new Occupancy
Sensor
$150 $25
46 Pool Lobby Strip (1)
T12 MAG
54 FLUOR T12 4'
F40T12 40W Standard
Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 54
FLUOR T8 4' F32T8
32W Standard Program
HighEfficElectronic
$5,400 $833
47 Class (3) T8 ELEC
Dir/Ind
58 FLUOR (3) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Manual Switching,
Occupancy Sensor
Add new Multi-Level
Switch
$1,500 $234
48 Restroom (2) T12
wrap
14 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 14
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$2,550 $368
49 Locker room (2)
T12, MAG wet-
location, WS
88 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 88
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$14,000 $1,931
50 Utility 60W incand. 3 INCAN A Lamp, Std
60W with Manual
Switching
Replace with 3 FLUOR
CFL, A Lamp 9W
$75 $33
51 Corridor Strip (2)
T12 MAG
6 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 6 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,050 $141
52 Corridor Troffer (4)
T12 ELEC
8 FLUOR (4) T12 4'
F40T12 40W Standard
(2) StdElectronic with
Clock Timer or Other
Scheduling Control
Replace with 8 FLUOR
(4) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,350 $180
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
53 Corridor 2'X4' (4)
T12 ELEC
38 FLUOR (4) T12 4'
F40T12 40W Standard
(2) StdElectronic with
Clock Timer or Other
Scheduling Control
Replace with 38
FLUOR (4) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic and
Add new Occupancy
Sensor
$6,450 $857
54 Storage strip (4) T12
MAG
FLUOR (4) T12 4'
F40T12 40W Standard
(2) Magnetic with
Manual Switching
Replace with FLUOR
(4) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
$100 $14
55 Corridor 1'X4' (2)
T12 MAG
60 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Clock
Timer or Other
Scheduling Control
Replace with 60
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$9,000 $1,166
56 Corridor 1'X4' (2)
T12 MAG NL
3 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic
Replace with 3 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$450 $58
57 M2 DIR/IND 1'X4'
(2) T8 ELEC
8 FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
with Manual Switching,
Occupancy Sensor
Add new Multi-Level
Switch
$150 $19
58 Class (3) T12 Mag
Wrap, WS
347 FLUOR (3) T12 4'
F40T12 40W Standard
(2) Magnetic with
Manual Switching
Replace with 347
FLUOR (3) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic and
Add new Occupancy
Sensor, Daylight Sensor
$56,100 $6,752
59 Class (2) T8 Elec,
WS
43 FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
with Manual Switching
Replace with 43
FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
and Add new
Occupancy Sensor
$900 $102
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
60 Storage 1'X4' (2)
T12 MAG
10 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 10
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,650 $185
61 Class Tech Labs (3)
T12 Mag Para, WS
106 FLUOR (3) T12 4'
F40T12 40W Standard
(2) Magnetic with
Manual Switching
Replace with 106
FLUOR (3) T8 4'
F32T8 32W Standard
(2) Program
HighEfficElectronic and
Add new Occupancy
Sensor
$16,950 $1,905
62 Office (3) T12,
MAG
5 FLUOR (3) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 5 FLUOR
(3) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$900 $107
63 Corridor 4'X4' (8)
T12 ELEC
4 FLUOR (8) T12 4'
F40T12 40W Standard
(4) StdElectronic with
Clock Timer or Other
Scheduling Control
Replace with 4 FLUOR
(8) T8 4' F32T8 32W
Standard (4) Program
HighEfficElectronic and
Add new Occupancy
Sensor
$2,100 $224
65 Corridor 2'X2' (2)
T12 ELEC
4 FLUOR (2) T12
F40T12 40W U-Tube
Standard StdElectronic
with Clock Timer or
Other Scheduling
Control
Replace with 4 FLUOR
(2) T12 F40T12 40W
U-Tube Standard
StdElectronic
$600 $62
66 Storage (2) T8 7 FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
with Manual Switching
Add new Occupancy
Sensor
$450 $46
67 Storage strip (2) T12
MAG
6 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 6 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,050 $105
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
68 Corridor Can 8 INCAN Reflector,
Halogen 45W PAR38
with Clock Timer or
Other Scheduling
Control
Replace with 8 LED
8W Module
StdElectronic
$400 $130
69 Utility (4) T12 2 FLUOR (4) T12 4'
F40T12 40W Standard
(2) Magnetic with
Manual Switching
Replace with 2 FLUOR
(4) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
$300 $29
70 Gym Strip (2) T12
MAG
84 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 84
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$12,600 $1,117
71 Corridor (2) T8
troffer
3 FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Add new Occupancy
Sensor
$150 $13
73 Corridor 4'X4' (6)
T8 ELEC
2 FLUOR (6) T8 4'
F32T8 32W Standard (2)
Program StdElectronic
with Clock Timer or
Other Scheduling
Control
Add new Occupancy
Sensor
$300 $25
74 Corridor Can 4 INCAN A Lamp, Std
40W with Clock Timer
or Other Scheduling
Control
Replace with 4 LED
8W Module
StdElectronic
$200 $56
75 Gym Recessed 2'X2'
MH
36 MH 400 Watt
Magnetic with
Occupancy Sensor
Replace with 36
FLUOR (6) T5 45.2"
F54W/T5 HO Standard
(3) HighEfficElectronic
and Add new Multi-
Level Switch
$37,000 $2,958
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
76 Classrooms (2) T12
Mag Wrap, WS
494 FLUOR (2) T12 4'
F40T12 40W Standard
EfficMagnetic with
Manual Switching,
Multi-Level Switch
Replace with 494
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor, Daylight Sensor
and Improve Multi-
Level Switch
$91,100 $7,363
77 Corridor Troffer (2)
T12 MAG
FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Clock
Timer or Other
Scheduling Control
Replace with FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$300 $23
78 Office (2) 2' T8 2 FLUOR (2) T8 F32T8
32W U-Tube Standard
Program StdElectronic
with Manual Switching
Add new Occupancy
Sensor
$150 $12
79 Class #91 (2) T12
Mag Wrap, WS
45 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 45
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$7,200 $564
80 Class NWL122 (2)
T12 Mag Troffer,
WS
19 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 19
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$3,150 $238
81 Class (4) 3' T12
MAG, 3'X3' troffer,
WS
614 FLUOR [Unknown
Lamp] with Manual
Switching
Replace with 614
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$128,950 $9,572
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
82 Office 3'X3' troffer
(4) T12, MAG
18 FLUOR [Unknown
Lamp] with Manual
Switching
Replace with 18
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$4,200 $309
83 Corridor (2) T8
troffer, WS
2 FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
with Manual Switching
Add new Occupancy
Sensor
$150 $11
84 Corridor 3'X3' (4)
F30T12 MAG
27 FLUOR [Unknown
Lamp] with Clock Timer
or Other Scheduling
Control
Replace with 27
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$10,800 $768
85 Storage 2'X2' (2)
T12 40W U
5 FLUOR (2) T12
F40T12 40W U-Tube
Standard Magnetic with
Manual Switching
Replace with 5 FLUOR
(2) T12 F40T12 40W
U-Tube Standard
Magnetic and Add new
Occupancy Sensor
$900 $62
86 Gym PE 105
Recessed 2'X2' MH
24 MH 400 Watt
Magnetic with Manual
Switching
Replace with 24
FLUOR (6) T5 45.2"
F54W/T5 HO Energy-
Saver (3)
HighEfficElectronic and
Add new Multi-Level
Switch
$25,000 $1,803
88 Pool 2'X4' (4) T12
ELEC
3 FLUOR (4) T12 4'
F40T12 40W Standard
(2) StdElectronic with
Clock Timer or Other
Scheduling Control
Replace with 3 FLUOR
(4) T8 4' F32T8 32W
Standard (2) Program
HighEfficElectronic
$450 $31
89 Corridor Troffer (2)
T12 ELEC
6 FLUOR (2) T12 4'
F40T12 40W Standard
StdElectronic with Clock
Timer or Other
Scheduling Control
Replace with 6 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,050 $68
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
90 Storage (1) T12 9 FLUOR T12 4' F40T12
40W Standard Magnetic
with Manual Switching
Replace with 9 FLUOR
T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$1,350 $84
91 Office (2) T12,
MAG
27 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 27
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$4,950 $309
92 Corridor 1'X4' (3)
T12 ELEC
11 FLUOR (3) T12 4'
F40T12 40W Standard
StdElectronic with Clock
Timer or Other
Scheduling Control
Replace with 11
FLUOR (3) T8 4'
F32T8 32W Standard
Program StdElectronic
$1,650 $100
93 Corridor (1) T8
ELEC Wall mount
4 FLUOR T8 4' F32T8
32W Standard Program
StdElectronic with Clock
Timer or Other
Scheduling Control
Add new Occupancy
Sensor
$150 $9
94 Restroom 2'X2' (2)
T12 MAG
30 FLUOR T12 F40T12
40W U-Tube Standard
EfficMagnetic with
Clock Timer or Other
Scheduling Control
Replace with 30
FLUOR T12 F40T12
40W U-Tube Standard
EfficMagnetic and Add
new Occupancy Sensor
$5,700 $336
95 Utility Surface (2)
T12 MAG
62 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 62
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$9,300 $547
96 Office (3) T12,
ELEC
38 FLUOR (3) T12 4'
F40T12 40W Standard
StdElectronic with
Manual Switching
Replace with 38
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$7,050 $417
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
98 Class (4) 3' T12
MAG, 3'X3' troffer,
WS, bi-lvl
51 FLUOR [Unknown
Lamp] with Manual
Switching, Multi-Level
Switch
Replace with 51
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$10,650 $555
99 Class NE (2) T12
Elec Wrap, WS
63 FLUOR (2) T12 4'
F40T12 40W Standard
StdElectronic with
Manual Switching
Replace with 63
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor, Daylight Sensor
$12,950 $558
100 Office (2) T12,
MAG, occ
2 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with
Occupancy Sensor
Replace with 2 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$300 $12
101 Class
Band/Choir/Orchestr
a 2'X2' recessed MH
26 MH 400 Watt
Magnetic with Manual
Switching
Replace with 26
FLUOR (6) T5 45.2"
F54W/T5 HO Energy-
Saver (3)
HighEfficElectronic and
Add new Occupancy
Sensor, Multi-Level
Switch
$26,450 $1,060
102 Class S119 (2) T12
Mag Wrap, WS
5 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching, Occupancy
Sensor
Replace with 5 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$750 $30
103 Utility (3) T12 3 FLUOR (3) T12 4'
F40T12 40W Standard
Magnetic with Manual
Switching
Replace with 3 FLUOR
(3) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$450 $18
104 Wallpack HPS 16 HPS 100 Watt
Magnetic with On/Off
Photoswitch
Replace with 16 LED
20W Module
StdElectronic
$12,800 $458
105 Wallpack MH 20 MH 100 Watt
Magnetic with On/Off
Photoswitch
Replace with 20 LED
20W Module
StdElectronic
$16,000 $572
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
106 Canopy HPS 32 HPS 100 Watt
Magnetic with On/Off
Photoswitch
Replace with 32 LED
25W Module
StdElectronic
$25,600 $864
107 Class Can 40W
halogen
27 INCAN A Lamp, Std
40W with Manual
Switching, Occupancy
Sensor
Replace with 27 LED
8W Module
StdElectronic
$1,350 $143
108 Utility (1) T12 6 FLUOR T12 4' F40T12
40W Standard
EfficMagnetic with
Manual Switching
Replace with 6 FLUOR
T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$600 $20
109 Storage strip (2) T12
MAG
2 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic
Replace with 2 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic
$200 $6
110 Storage 1'X4' (3)
T12 MAG, occ
10 FLUOR (3) T12 4'
F40T12 40W Standard
Magnetic with
Occupancy Sensor
Replace with 10
FLUOR (3) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$1,500 $41
111 Class (2) 3' T12
MAG, 1'X3' troffer
47 FLUOR [Unknown
Lamp] with Manual
Switching
Replace with 47
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$9,850 $258
112 Canopy MH 36 MH 100 Watt
Magnetic with Manual
Switching
Replace with 36 LED
20W Module
StdElectronic
$28,800 $735
113 Pool 2'X2' MH 48 MH 250 Watt
Magnetic with Manual
Switching
Replace with 48
FLUOR (6) T5 45.2"
F54W/T5 HO Standard
(3) HighEfficElectronic
and Add new Multi-
Level Switch and
Improve Manual
Switching
$49,000 $1,120
114 Auditorium Cans,
worklights, PA116
27 INCAN A Lamp, Std
40W with Manual
Switching
Replace with 27
FLUOR CFL, A Lamp
15W
$675 $50
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
116 Office 1'X3' troffer
(2) T12, MAG
3 FLUOR [Unknown
Lamp] with Manual
Switching
Replace with 3 FLUOR
(2) T8 4' F32T8 32W
Standard Program
HighEfficElectronic and
Add new Occupancy
Sensor
$750 $16
117 Storage 1'X4' (2)
T12 MAG, occ
85 FLUOR (2) T12 4'
F40T12 40W Standard
Magnetic with
Occupancy Sensor
Replace with 85
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic
$12,750 $255
118 Corridor 6" Can 13 FLUOR CFL, Plug-in
13W Quad Tube
StdElectronic with
Occupancy Sensor,
Clock Timer or Other
Scheduling Control
Replace with 13 LED
4W Module
StdElectronic
$1,950 $37
120 Class NW (2) 3' T12
MAG, 1'X3' troffer
12 FLUOR [Unknown
Lamp] with Manual
Switching, Multi-Level
Switch
Replace with 12
FLUOR (2) T8 4'
F32T8 32W Standard
Program
HighEfficElectronic and
Add new Occupancy
Sensor
$2,550 $46
121 Utility Surface (2)
T12 ELEC
10 FLUOR (2) T12 4'
F40T12 40W Standard
StdElectronic with
Manual Switching
Replace with 10
FLUOR (2) T8 4'
F32T8 32W Standard
Program StdElectronic
$1,500 $26
Refrigeration
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
Other Electrical Equipment
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
6 Ice Cream Vending
Machine
2 Ice Cream Vending
Machine
Add new Other
Controls
$500 $480
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
7 Soda Machine 11 Soda Machine Add new Other
Controls
$2,750 $2,479
44 Snack Machine 5 Snack Vending
Machine
Add new Other
Controls
$1,250 $211
Cooking/Clothes Drying
Rank Recommended Installed
Cost
Annual
Energy
Savings
------------------------------------------
AkWarmCalc Ver 2.1.4.0, Energy Lib 12/7/2011
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
Appendix E
Site Survey Photos
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
1. School, Main Entrance 2. School, Area 1 Walls
3. School, Area 3 Walls 4. Auditorium in Area 7
5. 1975 walls of Area 5 6. Physical Education Bldg, Sky Bridge
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
7. Typical style old metal doors 8. Physical Education Bldg, South Face
9. Physical Education Bldg, North Face 10. Area 5 Maintenance Satellite, North Face
11. School, Area 9 West Wall 12. Single pane glass entry door and surrounding
glass on south side of old part of Area 2
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
13. Courtyard doors in Area 3 14. Gas-Fired Domestic Water Heater in main
boiler room
15. School Boilers (B-1,2,3,4) 16. School Boilers (B-1,2,3,4)
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
17. Heating Water Circulation Pumps in Boiler
Room 18. Water Heaters for the Pool
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
Appendix F
Thermographic Photos
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
Coffman Engineers made miscellaneous thermographic images of East High School using a FLIR T300
Infrared Camera on January 24, 2012. The outdoor air temperature was approximately 5F. This is not a
thermographic study, rather photographs to illustrate easy-to-identify heat losses.
1. Optical Image, Area 5 West Entry. Thermal Image below is indicated by the white border.
2. Thermographic Image, Area 5 West Entry. Temperatures indicated by color scale on right.
Yellow indicates heat leakage. This entry is a typical entry door and window combination found
throughout the older sections of the school.
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
3. Optical Image, Area 4 West Wall. Thermal
Image to the right is indicated by the white
border.
4. Thermographic Image, Area 4 West Wall.
Heat loss occurring through panel wall and
entry door.
5. Optical Image, Area 4 West Wall. Thermal
Image to the right is indicated by the white
border.
6. Thermographic Image, Area 4 West Wall.
Heat loss occurring through panel wall and
windows.
7. Optical Image, Area 9 West Wall. Thermal
Image to the right is indicated by the white
border.
8. Thermographic Image, Area 9 West Wall.
Heat loss occurring through wall/roof
interface and through poorly insulated lower
walls.
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
9. Optical Image, Area 2 South Wall. Thermal
Image to the right is indicated by the white
border.
10. Thermographic Image, Area 2 South Wall.
Original wall at right is poorly insulated
compared to newer insulated wall on the left
(2002 addition).
11. Optical Image, Area 2 South Entry. Thermal
Image to the right is indicated by the white
border.
12. Thermographic Image, Area 2 South Entry.
Heat loss occurring through single pane glass
entry door and surrounding single pane
windows.
13. Optical Image, Area 1 South Wall. Thermal
Image to the right is indicated by the white
border.
14. Thermographic Image, Area 1 South Wall.
Heat loss occurring through panel walls and
entry door.
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
15. Optical Image, Area 6 East Wall. Thermal
Image to the right is indicated by the white
border.
16. Thermographic Image, Area 6 East Wall.
Heat loss occurring through overhead garage
door.
17. Optical Image, Area 3 and 9 West and North
Walls. Thermal Image to the right is
indicated by the white border.
18. Thermographic Image, Area 3 and 9 West
and North Walls. Original Area 3 wall at left
is poorly insulated compared to renovated
wall of Area 9 at right.
19. Optical Image, Area 5 East Wall. Thermal
Image to the right is indicated by the white
border.
20. Thermographic Image, Area 5 East Wall.
Heat loss occurring through poorly insulated
wall.
East High School Final Energy Audit Report
Coffman Engineers, Inc. 6/15/2012 AkWarm No. CIRI-ANC-CAEC-15
21. Optical Image, Gym East Doors. Thermal
Image to the right is indicated by the white
border.
22. Thermographic Image, Gym East Doors.
Heat loss occurring through perimeter of
double doors due to poor weatherstripping.
23. Optical Image, Area 5 North Wall. Thermal
Image to the right is indicated by the white
border.
24. Thermographic Image, Area 5 North Wall.
Heat loss occurring through perimeter of
overhead garage door and entry door.
End of Report