HomeMy WebLinkAboutASRC-BRW-RSA Barrow FS 1 2012-EE
Richard S. Armstrong, PE, LLC
Mechanical/Electrical Engineer
Comprehensive Energy Audit
of
Barrow Fire Station #1
1040 Kiogak, Barrow
Project # ASRC%BRW%RSA%07
Prepared for:
The North Slope Borough
Department of Public Works
August 8, 2011
Prepared by:
Richard S. Armstrong, PE, LLC
2321 Merrill Field Drive, C%6
Anchorage, Ak 99501
Barrow Fire Station #1 Comprehensive Energy Audit
2
TABLE OF CONTENTS
1. Executive Summary 4
2. Audit and Analysis Background 7
3. Acknowledgements 8
4. Building Description & Function 10
5. Historic Energy Consumption 10
6. Energy Efficiency Measures Considered 11
7. Interactive Effects of Projects 11
8. Loan Program 12
Appendix A: Photos
Appendix B: AkWarm5C Report
Appendix C: Equipment Schedules
Appendix D: Building Plan
Appendix E: Lighting Plan
Appendix F: Mechanical Schematic
Submitted by:
_______________________________
Richard S. Armstrong, PE, CEM, CEA
Date:__________________________
Barrow Fire Station #1 Comprehensive Energy Audit
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REPORT DISCLAIMERS
The information contained in this report, including any attachments, is
intended solely for use by the building owner and the AHFC. No others
are authorized to disclose, copy, distribute or retain this report, in whole or
part, without written authorization from Richard S. Armstrong, PE, LLC,
2321 Merrill Field Drive, C*6, Anchorage, Ak 99501. Additionally, this
report contains recommendations that, in the opinion of the auditor, will
cause the owner to realize energy savings over time. All
recommendations must be designed by a registered engineer, licensed in
the State of Alaska, in the appropriate discipline. Lighting
recommendations should all be first reviewed by running a lighting
analysis to assure that the recommended lighting upgrades will comply
with State of Alaska Statue as well as IES recommendations.
Payback periods may well vary from those forecast due to the uncertainty
of the final installed design, configuration, equipment selected, and
installation costs of recommended Energy Efficiency Measures (EEMs), or
the operating schedules and maintenance provided by the owner.
Furthermore, EEMs are typically interactive, so implementation of one
EEM may impact the cost savings from another EEM. Neither the auditor,
Richard S. Armstrong, PE, LLC, AHFC, or others involved in preparation of
this report will accept liability for financial loss due to EEMs that fail to
meet the forecasted payback periods.
This audit meets the criteria of an Investment Grade Audit (IGA) per the
Association of Energy Engineers definition, and is valid for one year. The
life of the IGA may be extended on a case*by*case basis, at the discretion
of the AHFC.
IGSs are the property of the State, and may be incorporated into AkWarm*
C, the Alaska Energy Data Inventory (ARIS), or other state and/or public
information system
Barrow Fire Station #1 Comprehensive Energy Audit
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Investment Grade Energy Audit
Barrow Fire Station #1
1. Executive Summary: The Barrow Fire Station #1 is estimated to
have been originally constructed in 1979, but it underwent a
significant addition and upgrade in 1990 based on plans for the
remodel/addition project. The facility contains four apparatus bays,
as well as an office, training room, and break room. The building is
in generally good condition. The 2009 and 2010 annual utility
energy consumption reported by BUECI and collected as benchmark
data by Nortec Engineering is displayed in Table 1 below:
Table 1
2009 2009 2010 2010
Utility Consumption Cost/Year Consumption Cost/Year
Electricity*kWh 2,729 $8,580 3,156 $9,898
Natural Gas*CCF 11,484 $3,549 9,404 $2,915
Ttl Energy Costs
$12,129
$12,813
A benchmark measure of energy use relative to other similar function
buildings in the area is the Energy Use Index (EUI), which takes the
total annual energy used by the facility divided by the square footage
area of the building, for a value expressed in terms of kBTU/SF.
This number can then be compared to other buildings to see if it is
about average, higher or lower than similar buildings in the area.
Likewise, the Energy Cost Index (ECI) is the cost of all energy used
by the building expressed in $/SF of building area. The comparative
values for the subject building are listed in Table 2 below:
Table 2
Fire Station #1 Barrow Avg Fire Station #2
Energy Use Index (EUI)
kBTU/SF
207 211 175
Energy Cost Index (ECI)
$/SF
$1.92 $1.68 $1.51
Various Energy Efficiency Measures (EEMs) have been analyzed for
this building to determine if they would be applicable for energy
savings with reasonably good payback periods. Those EEMs that
have a payback period of less than 8 years, or those that are
Barrow Fire Station #1 Comprehensive Energy Audit
5
recommended for code compliance, life cycle replacement, or other
reasons are also included. Also, where a lighting upgrade is
recommended from T*12 lamps with magnetic ballasts to T*8 lamps
with electronic ballasts, then the entire facility should be relamped
and reballasted to maintain a standard lighting parts inventory,
regardless of the payback. For example, a storage room that is
infrequently used may not show a very good payback for a lighting
upgrade, but consistency dictates a total upgrade.
Specific EEMs recommended for this facility are detailed in the
attached AkWarm Energy Audit Report along with specific payback
times, as well as estimated installation costs and estimated energy
savings. The higher priority items are summarized below:
a. Lighting Upgrades: In general, all of the T*12 flourescent
lamps, and all of the magnetic ballasts should be replaced
with new T*8 lamps with electronic ballasts. Typical savings
in power consumption varies 10*30% with this upgrade.
b. Lighting Control Upgrades: Many lights were found to be
left on with nobody in the space. Occupant controls can
sense the presence of workers, and turn the lights on. The
controller can then turn the lights off after a programmed
time period of no occupancy. These controls can reduce
total kWh consumption for the lighting in the order of 30*
90%, depending on the amount of time the lights are
manually left on.
c. Exterior Lighting Upgrades: The exterior high pressure
sodium lights operate during periods of darkness, which is
about half of a year. It is estimated that the use of LED
exterior lights can reduce the power consumption by 60%.
d. Air Handler Unit Cycling: The AHU*1 presently operates
24/7. The purpose of the AHU*1 is primarily to ventilate the
training area, as well as the adjoining break room and
office. The new Fire Station 2 has a larger training area,
and has generally replaced the function of this space. The
intent of this EEM is to only start the AHU*1 when persons
are occupying the training room. The smaller adjacent
break room can cause the AHU*1 to start with proper
placement and selection of the occupancy sensor. The
Barrow Fire Station #1 Comprehensive Energy Audit
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office has an operable window, so it should not need
additional ventilation given the size of the space.
e. Setback Thermostats in Office and Appartus Room: The
thermostats were found to be set to 75 degrees F, 24/7. It
is recommended that lockable setback thermostats be
installed and programmed for occupied temperatures of 72
deg F, and unoccupied temperatures of 55 deg F. This has
an estimated payback of 0.8 years for the apparatus room,
and 2.1 years for the office.
f. Headbolt Heater Controls: There are retrofit headbolt
heater receptacles that have microprocessors to cycle the
power on and off in response to the outside air temperature.
This is estimated to have a payback of 2.8 years.
g. Air Tightening: The last major upgrade to the building was
in 1990, 21 years ago. It is recommended that all of the
doors be tightened with new weather stripping to reduce
infiltration. This EEM is estimated to have a payback of 9.9
years.
h. Refrigerator: Newer Energy Star refrigerators use about
411 watts, compared to 1990 versions that used 1,044
watts. While this would have a 15 year payback, it is still
recommended due to the relatively low cost and quick
payback.
In addition to EEMs, various Energy Conservation Measures (ECMs)
are recommended since they are policies or procedures that are
followed by management and employees that require no capital
outlay. Examples of recommended ECMs for this facility include:
• Turn off lights when leaving a room that is not controlled by an
occupancy sensor that automatically turns off lights.
• Turn off computers, monitors, printers, faxes, coffee makers,
etc when leaving the office for the day.
• Keep overhead doors closed except when they are required to
be open for movement of vehicles.
The 29 priority recommendations in the detailed report estimate to save
$6,327/year, with an installed cost of $31,811. This does not include
design or CA services, but overall it does indicate a cost effective
energy savings program.
Barrow Fire Station #1 Comprehensive Energy Audit
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2. Audit and Analysis Background:
a. Program Description: This audit included services to identify,
develop, and evaluate energy efficiency measures at the
subject building. The scope of this project included evaluating
the building shell, lighting, other electrical systems, and
heating, ventilating, and air conditioning (HVAC) equipment.
Measures were selected such that an overall simple payback
period of 8 years or less could be achieved.
b. Audit Description and Methodology: Preliminary audit
information was gathered in preparation for the site survey,
including benchmark utility consumption data, floor and lighting
plans, and equipment schedules where available. A site visit is
then performed to inventory and evaluate the actual building
condition, including:
i. Building envelope (roof, windows, etc)
ii. Heating, ventilating, and air conditioning
iii. Lighting systems and controls
iv. Building specific equipment
v. Plumbing systems
c. Method of Analysis: The information gathered prior to the site
visit and at the site visit is entered into AkWarm*C, an energy
modeling developed for Alaska Housing Finance Corporation
(AHFC) specifically to identify forecasted energy consumption
which can be compared to actual energy consumption.
AkWarm*C also has some pre*programmed EEM retrofit
options that can be analyzed with energy savings forecasted
based on occupancy schedules, utility rates, building
construction type, building function, existing conditions, and
climatic data that is already uploaded to the program based on
the zip code of the building. When new equipment is
proposed, energy consumption is calculated based on
manufacturer’s cataloged information.
Cost savings are calculated based on the historical energy
costs for the building. Installation costs include labor and
equipment to estimate the full up*front investment required to
implement a change, but design and construction management
Barrow Fire Station #1 Comprehensive Energy Audit
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costs are excluded. Costs are derived from Means Cost Data,
industry publications, experience of the auditor, local
contractors and equipment suppliers. Haakensen Electric was
consulted for some of the lighting retrofit costs. Maintenance
savings are calculated were applicable and are added to the
energy savings for each EEM.
The cost and savings are applied and a simple payback and
simple return on investment (ROI) is calculated. The simple
payback is based on the number of years that it takes for the
savings to pay back the net installation cost (Net Installation
divided by Net Savings.)
A simple life*time calculation is shown for each EEM. The life*
time for each EEM is estimated based on the typical life of the
equipment being replaced or altered. The energy savings is
extrapolated throughout the life*time of the EEM. The total
energy savings is calculated as the total life*time multiplied by
the yearly savings.
d. Limitations of the Study: All results are dependent on the
quality of input data provided, and can only act as an
approximation. In some instances, several methods may
achieve the identified savings. This report is not intended as a
final design document. A design professional, licensed to
practice in Alaska and in the appropriate discipline, who is
following the recommendations, shall accept full responsibility
and liability for the results. Budgetary estimates for
engineering and design of these projects in not included in the
cost estimate for each measure, but these costs generally run
around 15% of the cost of the work.
3. Acknowledgements: We wish to acknowledge the help of
numerous individuals who have contributed information that was
used to prepare this report, including:
a. Alaska Housing Finance Corporation (Grantor): AHFC
provided the grant funds, contracting agreements, guidelines,
and technical direction for providing the audits. AHFC
reviewed and approved the final short list of buildings to be
Barrow Fire Station #1 Comprehensive Energy Audit
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audited based on the recommendation of the Technical
Service Provider (TSP).
b. North Slope Borough (Owner): The NSB provided building
sizing information, two years energy billing data, building
schedules and functions, as well as building age.
c. Nortech Engineering (Benchmark TSP): Nortech
Engineering compiled the data received from the NSB and
entered that data into the statewide building database, called
the Alaska Retrofit Information System (ARIS).
d. Richard S. Armstrong, PE, LLC (Audit TSP): This is the
TSP who was awarded the projects in the Arctic Slope
Regional Corporation, Bering Straits area, and the Nana area.
The firm gathered all relevant benchmark information provided
to them by Nortech, cataloged which buildings would have the
greatest potential payback, and prioritized buildings to be
audited based on numerous factors, including the Energy Use
Index (EUI), the Energy Cost Index (ECI), the age of the
building, the size of the building, the location of the building,
the function of the building, and the availability of plans for the
building. They also trained their selected sub*contracted
auditors, assigned auditors to the selected buildings, and
performed quality control reviews of the resulting audits. They
prepared a listing of potential EEMs that each auditor must
consider, as well as the potential EEMs that the individual
auditor may notice in the course of his audit. Richard S.
Armstrong, PE, LLC also performed some of the audits to
assure current knowledge of existing conditions.
e. RSA Engineering, Inc (Energy Auditor): This firm
specializes in mechanical and electrical design, and has
trained three of its mechanical engineers to perform specific
energy audits. All three are Certified Energy Auditors, and
have received additional training from Richard S. Armstrong,
PE, LLC to acquire further specific information regarding audit
requirements and potential EEM applications.
Barrow Fire Station #1 Comprehensive Energy Audit
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f. Energy Audits of Alaska: This firm has been selected to
provide audits under this contract in addition to RSA
Engineering. The firm has two mechanical engineers, certified
as energy auditors or professional engineers.
4. Building Description and Function: The subject building is called
the Barrow Fire Station #1. It was originally constructed in 1979, and
had a substantial addition constructed in 1990. The new addition
housed the apparatus room, and the original part of the building
became an office and training center, with toilet and shower rooms.
The total size of the building, including the addition is 6,480 SF. The
building has one story.
a. Heating System: The building heating system consists of four
Weil McLain cast iron “Gold” boilers, fired sequentially. Hot
glycol is distributed to terminal units, unit heaters, and the air
handler coil through copper pipe.
b. Ventilation System: The office/training side of the building is
ventilated with an 1100 CFM air handler unit located above the
toilet room. The Apparatus room equipment is exhausted with
a single wall outlet exhaust fan rated at 2,952 CFM, connected
to exhaust tailpipe adaptors. The toilet room and shower areas
are each exhausted with individual 88 CFM exhaust fans.
c. Plumbing System: There is one toilet and one steam style
shower along with one lav for hand washing.
d. Domestic Hot: How water is generated using an electric hot
water heater, located in the mechanical room.
e. Lighting: Typical lighting throughout the building is comprised
of T*12 fluorescent fixtures, using magnetic ballasts. Exterior
lighting utilizes 250 watt high pressure sodium (HPS) wall
packs, in addition to existing lighting on the older section.
5. Historic Energy Consumption: Energy consumption is modeled
within the AkWarm*C program. The program only analyzes 12
months of data, so where 24 months of data are available, the data
is averaged to provide more accuracy. The energy consumption
Barrow Fire Station #1 Comprehensive Energy Audit
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data is presented and graphed in the attached AkWarm*C program
results.
Energy consumption was analyzed using two factors: the Energy
Cost Index (ECI) and the Energy Use Index (ECU).
The energy cost index takes the average cost of gas and electrical
energy over the surveyed period of time (typically 2 years) and
averages the cost, divided by the square footage of the building.
The ECI for this building is $ 1.92, and the average ECI for all
buildings in Barrow that were surveyed is $ 1.68/SF. Fire Station #2,
a newer facility in adjacent Browerville has an ECI of $1.51.
The energy use index (ECU) is the total average electrical and
heating energy consumption per year expressed in thousands of
BTUs/SF. The average ECU for all buildings in Barrow that were
surveyed is 211 kbtu/sf, and the EUI for this building is 207 kbtu/sf,
compared to 175 for Fire Station #2.
6. Energy Efficiency Measures considered or recommended: The
building was examined for application of a multitude of potential
EEMs that are discussed below. Those EEMs that appear to have
an application for the subject building are further analyzed for
estimated payback periods, either within the AkWarm*C program or
separately within this report. The accuracy of the cost estimates and
paybacks varies significantly due to a multitude of conditions, but is
estimated to be approximately +/* 25%. Assumptions made
regarding energy costs and the life of the EEM, noting that post*
construction measurement and verification are based on energy
savings, not energy cost savings.
Many of the selected EEMs are analyzed within the AkWarm*C
program using the schedules and estimated costs input into the
model. Some of the other EEMs are not modeled within AkWarm*C,
and are individually discussed within this report.
7. Interactive Effects of Projects: The AkWarm*C program
calculates savings assuming that all recommended EEM are
implemented. If some EEMs are not implemented, savings for the
remaining EEMs will be affected, in some cases positively, and in
others, negatively. For example, if the fan motors are not replaced
Barrow Fire Station #1 Comprehensive Energy Audit
12
with premium efficiency motors, then the savings for the project to
install variable speed drives (VFDs) on the fans will be increased.
In general, all projects were evaluated sequentially so that energy
savings associated with one EEM would not be attributed to another
EEM as well. For example, the night setback EEM was analyzed
using the fan and heating load profile that will be achieved after
installation of the VFD project is completed. By modeling the
recommended projects sequentially, the analysis accounts for
interactive effects between the EEMs and does not “double count”
savings.
Interior lighting, plug loads, facility equipment, and occupants
generate heat within the building. When the building is in cooling
mode, these contribute to the overall cooling demands of the
building; therefore lighting efficiency improvements will reduce
cooling requirements on air conditioned buildings. Conversely,
lighting efficiency improvements are anticipated to increase heating
requirements slightly. Heating penalties are included in the lighting
project analysis that is performed by AkWarm*C.
8. Loan Program: The Alaska Housing Finance Corporation (AHFC)
Alaska Energy Efficiency Revolving Loan Fund (AEERLF) is a State
of Alaska program enacted by the Alaska Sustainable Energy Act
(senate Bill 220, A.S. 18.56.855, “Energy Efficiency Revolving Loan
Fund). The AEERLF will provide loans for energy efficiency retrofits
to public facilities via the Retrofit Energy Assessment for Loan
System (REAL). As defined in 15 AAC 155.605, the program may
finance energy efficiency improvements to buildings owned by:
a. Regional educational attendance areas;
b. Municipal governments, including political subdivisions of
municipal governments;
c. The University of Alaska;
d. Political subdivisions of the State of Alaska, or
e. The State of Alaska
Native corporations, tribal entities, and subsidiaries of the federal
government are not eligible for loans under this program.
Barrow Fire Station #1 Comprehensive Energy Audit
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Appendix A: Photos
Appendix B: AkWarm5C Report
Appendix C: Equipment Schedule
Appendix D: Building Plan
Appendix E: Lighting Plan
Appendix F: Mechanical Schedule
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 1
ENERGY AUDIT REPORT – PROJECT SUMMARY
General Project Information
PROJECT INFORMATION AUDITOR INFORMATION
Building: Barrow Fire Department Auditor Company: Richard S. Armstrong, PE, LLC
Address: 1040 Koigak Auditor Name: Richard S. Armstrong
City: Barrow Auditor Address: 2321 Merrill Field Drive C-6
Anchorage, Ak 99501 Client Name: Harold Snowball
Client Address: PO Box 69
Barrow, Alaska 99723
Auditor Phone: (907) 229-0331
Auditor FAX:
Client Phone: (907) 852-0213 Auditor Comment:
Client FAX:
Design Data
Building Area: 6,848 square feet Design Heating Load: Design Loss at Space: 206,247 Btu/hour
with Distribution Losses: 206,247 Btu/hour
Plant Input Rating assuming 82.0% Plant Efficiency and 25%
Safety Margin: 314,401 Btu/hour
Note: Additional Capacity should be added for DHW load, if
served.
Typical Occupancy: 2 people Design Indoor Temperature: 75 deg F (building average)
Actual City: Barrow Design Outdoor Temperature: -41 deg F
Weather/Fuel City: Barrow Heating Degree Days: 20,370 deg F-days
Utility Information
Electric Utility: Barrow Utilities - elec - Commercial - Sm Natural Gas Provider: Barrow Utilities & Electric-gas -
Commercial - Sm
Average Annual Cost/kWh: $0.098/kWh Average Annual Cost/ccf: $0.291/ccf
Annual Energy Cost Estimate
Description Space
Heating
Space
Cooling
Water
Heating Lighting Other
Electrical Cooking Clothes
Drying
Ventilation
Fans
Service
Fees
Total
Cost
Existing
Building
$3,080 $0 $17 $5,463 $3,631 $0 $0 $314 $391 $12,997
With
Proposed
Retrofits
$1,958 $0 $18 $2,630 $1,616 $0 $0 $17 $391 $6,669
SAVINGS $1,122 $0 -$1 $2,832 $2,015 $0 $0 $297 $0 $6,327
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 2
$0
$2,000
$4,000
$6,000
$8,000
$10,000
$12,000
$14,000
Existing Retrofit
Service Fees
Ventilation and Fans
Space Heating
Space Cooling
Refrigeration
Other Electrical
Lighting
Domestic Hot Water
Cooking
Clothes Drying
Annual Energy Costs by End Use
$0
$2,000
$4,000
$6,000
$8,000
$10,000
$12,000
$14,000
Existing Retrofit
Natural Gas
Electricity
Annual Energy Costs by Fuel
$0 $500 $1,000 $1,500 $2,000
Floor
WallDoor
Window
Ceiling
Air
Existing Retrofit
Annual Space Heating Cost by Component
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 3
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
1 Other Electrical:
Computers,
monitors, printers
Improve Manual Switching $447 $10 284.53 0
2 Ventilation Cycle fan to only operate
when occupancy sensor in
training room occupancy
sensor should be installed
that detects occupant and
starts AHU-1 and turns on
lights since space is rarely
used.
$1,248 $500 31.50 0.4
3 Setback Thermostat:
Equipment Storage
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for
the Equipment Storage
space.
$249 $200 15.84 0.8
4 Setback Thermostat:
Office
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for
the Office space.
$93 $200 5.92 2.1
5 Other Electrical: AHU
Fan
Remove Manual Switching
and Add new Other
Controls
$240 $350 4.36 1.5
6 Other Electrical:
Building hydronic
Circulator
Improve Manual Switching $151 $350 2.75 2.3
7 Lighting: Equipment
Storage
Replace with 35 FLUOR (2)
T8 8' F96T8/HO 86W
Standard Program
StdElectronic and Remove
Manual Switching and Add
new Multi-Level Switch
$1,118 $5,786 2.36 5.2
8 Other Electrical:
Head Bolt Heaters
Remove Manual Switching
and Add new Other
Controls
$1,074 $3,000 2.29 2.8
9 Lighting: Office 107 Replace with 4 FLUOR (4)
T8 4' F32T8 32W Standard
(2) Program
HighEfficElectronic and
Remove Manual Switching
and Add new Occupancy
Sensor, Manual Dimmer
$102 $750 1.47 7.4
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 4
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
10 Lighting: Equipment
Storage - Night
Lights
Replace with 5 FLUOR (2)
T8 8' F96T8/HO 86W
Standard Program
StdElectronic
$76 $630 1.47 8.3
11 Lighting: Mechanical
Room Lighting Room
112
Remove Manual Switching
and Add new Occupancy
Sensor
$41 $350 1.42 8.6
12 Lighting: Exterior
Lights
Replace with 6 LED 100W
Module StdElectronic
$825 $8,000 1.27 9.7
13 Lighting:
Office/Reception
#114-115
Fluorescent
Remove Manual Switching
and Add new Occupancy
Sensor, Multi-Level Switch
$31 $350 1.07 11.5
14 Lighting: Corridor #
108
Replace with 4 FLUOR (2)
T8 4' F32T8 32W Standard
Program
HighEfficElectronic and
Remove Manual Switching
and Add new Occupancy
Sensor
$64 $850 0.92 13.3
15 Air Tightening Perform air sealing to
reduce air leakage by 20%.
$148 $1,500 0.89 10.2
16 Lighting: Training
Room 113
Replace with 17 FLUOR (4)
T8 4' F32T8 32W Standard
(2) Program StdElectronic
and Remove Manual
Switching and Add new
Occupancy Sensor and
Improve Multi-Level
Switch
$361 $3,350 0.69 9.3
17 Lighting: Projector
room #115 -
Incandescent
Replace with 2 FLUOR CFL,
A Lamp 15W
$3 $50 0.65 18.9
18 Refrigeration:
Household
refrigerator
Replace with Energy Star
Reefer
$54 $800 0.43 14.9
19 Lighting: Mechanical
Room Lighting Room
112
Replace with 2 FLUOR (2)
T8 4' F32T8 32W Standard
Program
HighEfficElectronic
$3 $250 0.15 83.9
20 Lighting:
Office/Reception
#114-115
Fluorescent
Replace with 2 FLUOR (4)
T8 4' F32T8 32W Standard
(2) Program
HighEfficElectronic
$4 $450 0.11 112.5
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 5
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
21 Lighting: Storage
101, 102
Remove Manual Switching
and Add new Occupancy
Sensor
$2 $350 0.04 157.1
22 Lighting: Dressing/
Shower # 110, 111
Replace with 2 FLUOR (2)
T8 4' F32T8 32W Standard
Program
HighEfficElectronic
$1 $250 0.03 352.6
23 Lighting: Bathroom
#109
Replace with FLUOR (2) T8
4' F32T8 32W Standard
Program
HighEfficElectronic
$0 $125 0.02 701.4
24 Lighting: Storage
101, 102
Replace with 4 FLUOR (3)
T8 4' F32T8 32W Standard
Program
HighEfficElectronic
$0 $450 0.00 4114.3
25 HVAC And DHW VFD on pumps,
electronic ignition on
boilers, turn boilers off
June & July. Provide OSA
reset schedule on boilers
$0 $250 0.00 Infinity
26 Other Electrical:
Building hydronic
Circulator
Replace with 3/4 HP
circulator for hydronic
heat
$0 $2,000 0.00 Infinity
27 Other Electrical:
Computers,
monitors, printers
Replace with 2 Computer
and monitor
$0 $10 0.00 Infinity
28 Lighting: Bathroom
#109
Remove Manual Switching
and Add new Occupancy
Sensor
-$2 $300 -0.07 -185.4
29 Lighting: Dressing/
Shower # 110, 111
Remove Manual Switching
and Add new Occupancy
Sensor
-$3 $350 -0.10 -122.6
TOTAL $6,327 $31,811 2.01 5
ENERGY AUDIT REPORT – ENERGY EFFICIENT RECOMMENDATIONS
1. Building Envelope
Insulation
Rank Location Existing Type/R8Value Recommendation Type/R8
Value
Installed
Cost
Annual
Energy
Savings
Exterior Doors – Replacement
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 6
Rank Location Size/Type/Condition Recommendation Installed
Cost
Annual
Energy
Savings
Windows and Glass Doors – Replacement
Rank Location Size/Type/Condition Recommendation Installed
Cost
Annual
Energy
Savings
Air Leakage
Rank Location Estimated Air Leakage Recommended Air Leakage
Target
Installed
Cost
Annual
Energy
Savings
15 Air Tightness estimated as:
5000 cfm at 50 Pascals
Perform air sealing to
reduce air leakage by 20%.
$1,500 $148
2. Mechanical Equipment
Mechanical
Rank Recommendation Installed
Cost
Annual
Energy
Savings
25 VFD on pumps, electronic ignition on boilers, turn boilers off June & July.
Provide OSA reset schedule on boilers
$250 $0
Setback Thermostat
Rank Location Size/Type/Condition Recommendation Installed
Cost
Annual
Energy
Savings
3 Equipment Storage Existing Unoccupied Heating
Setpoint: 75.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for
the Equipment Storage
space.
$200 $249
4 Office Existing Unoccupied Heating
Setpoint: 75.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for
the Office space.
$200 $93
Ventilation
Rank Recommendation Cost Annual
Energy
Savings
2 Cycle fan to only operate when occupancy sensor in training room occupancy
sensor should be installed that detects occupant and starts AHU-1 and turns on
lights since space is rarely used.
$500 $1,248
3. Appliances and Lighting
Lighting Fixtures and Controls
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 7
7 Equipment Storage 35 FLUOR (2) T12 8' F96T12/HO
95W Energy-Saver
EfficMagnetic with Manual
Switching
Replace with 35 FLUOR (2)
T8 8' F96T8/HO 86W
Standard Program
StdElectronic and Remove
Manual Switching and Add
new Multi-Level Switch
$5,786 $1,118
9 Office 107 4 FLUOR (4) T12 4' F40T12 34W
Energy-Saver (2) EfficMagnetic
with Manual Switching
Replace with 4 FLUOR (4)
T8 4' F32T8 32W Standard
(2) Program
HighEfficElectronic and
Remove Manual Switching
and Add new Occupancy
Sensor, Manual Dimmer
$750 $102
10 Equipment Storage
- Night Lights
5 FLUOR (2) T12 8' F96T12/HO
95W Energy-Saver
EfficMagnetic
Replace with 5 FLUOR (2)
T8 8' F96T8/HO 86W
Standard Program
StdElectronic
$630 $76
11 Mechanical Room
Lighting Room 112
2 FLUOR (2) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$350 $41
12 Exterior Lights 6 HPS 250 Watt Magnetic with
On/Off Photoswitch
Replace with 6 LED 100W
Module StdElectronic
$8,000 $825
13 Office/Reception
#114-115
Fluorescent
2 FLUOR (4) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor, Multi-Level Switch
$350 $31
14 Corridor # 108 4 FLUOR (2) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Replace with 4 FLUOR (2)
T8 4' F32T8 32W Standard
Program
HighEfficElectronic and
Remove Manual Switching
and Add new Occupancy
Sensor
$850 $64
16 Training Room 113 17 FLUOR (4) T12 4' F40T12
34W Energy-Saver (2)
EfficMagnetic with Manual
Switching
Replace with 17 FLUOR (4)
T8 4' F32T8 32W Standard
(2) Program StdElectronic
and Remove Manual
Switching and Add new
Occupancy Sensor and
Improve Multi-Level Switch
$3,350 $361
17 Projector room
#115 -
Incandescent
2 INCAN Reflector, Std 75W
PAR38 with Manual Switching
Replace with 2 FLUOR CFL,
A Lamp 15W
$50 $3
19 Mechanical Room
Lighting Room 112
2 FLUOR (2) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Replace with 2 FLUOR (2)
T8 4' F32T8 32W Standard
Program
HighEfficElectronic
$250 $3
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 8
20 Office/Reception
#114-115
Fluorescent
2 FLUOR (4) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Replace with 2 FLUOR (4)
T8 4' F32T8 32W Standard
(2) Program
HighEfficElectronic
$450 $4
21 Storage 101, 102 4 FLUOR (3) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$350 $2
22 Dressing/ Shower #
110, 111
2 FLUOR (2) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Replace with 2 FLUOR (2)
T8 4' F32T8 32W Standard
Program
HighEfficElectronic
$250 $1
23 Bathroom #109 FLUOR (2) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Replace with FLUOR (2) T8
4' F32T8 32W Standard
Program
HighEfficElectronic
$125 $0
24 Storage 101, 102 4 FLUOR (3) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Replace with 4 FLUOR (3)
T8 4' F32T8 32W Standard
Program
HighEfficElectronic
$450 $0
28 Bathroom #109 FLUOR (2) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$300 -$2
29 Dressing/ Shower #
110, 111
2 FLUOR (2) T12 4' F40T12 34W
Energy-Saver EfficMagnetic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$350 -$3
Refrigeration
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
18 Household
refrigerator
Standard reefer Replace with Energy Star
Reefer
$800 $54
Other Electrical Equipment
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
1 Computers,
monitors, printers
2 Computer and monitor with
Manual Switching
Improve Manual Switching $10 $447
5 AHU Fan Air Handler with Manual
Switching
Remove Manual Switching
and Add new Other
Controls
$350 $240
6 Building hydronic
Circulator
3/4 HP circulator for hydronic
heat with Manual Switching
Improve Manual Switching $350 $151
8 Head Bolt Heaters 3 Head bolt heaters on
equipment with Manual
Switching
Remove Manual Switching
and Add new Other
Controls
$3,000 $1,074
26 Building hydronic
Circulator
3/4 HP circulator for hydronic
heat with Manual Switching
Replace with 3/4 HP
circulator for hydronic heat
$2,000 $0
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 9
27 Computers,
monitors, printers
2 Computer and monitor with
Manual Switching
Replace with 2 Computer
and monitor
$10 $0
Cooking/Clothes Drying
Rank Recommended Installed
Cost
Annual
Energy
Savings
Boiler Room - Weil McLain Gold Gas Boilers
Building Exterior
Appartus room with lights on
Mezzanine storage with no lighting switchleg
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Barrow Fire Department
Page 10
Unoccupied break room with lights on
Corridor with lights on
Shop Bay with Lights On