HomeMy WebLinkAboutASRC-BRW-RSA Heritage Center 2012-EERichard S. Armstrong, PE, LLC
Comprehensive, Investment Grade Energy Audit
Barrow Inupiat
Project #
The North Slope Borough
Department of Public Works
Richard S. Armstrong, PE, LLC
2321 Merrill Field Drive, C
Co
Richard S. Armstrong, PE, LLC
Mechanical/Electrical Engineer
Comprehensive, Investment Grade Energy Audit
of the
Inupiat Heritage Center Building
Project # ASRC-BRW-RSA-12
Prepared for:
The North Slope Borough
Department of Public Works
April 13, 2012
Prepared by:
Richard S. Armstrong, PE, LLC
2321 Merrill Field Drive, C-6
Anchorage, Ak 99501
Co-Preparer: WHPacific, Inc.
1728 Ahkovak
Barrow, AK 99723
Barrow Inupiat Heritage Center
Barrow Inupiat Heritage Center Comprehensive Energy Audit
3
REPORT DISCLAIMERS
This audit was performed using American Recovery and Reinvestment Act
(ARRA) funds, managed by the Alaska Housing Finance Corporation
(AHFC). This material is based upon work supported by the Department of
Energy under Award Number DE-EE0000095.
The information contained in this report, including any attachments, is
intended solely for use by the building owner and the AHFC. 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.
IGAs 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. AkWarm-C is a building energy
modeling software developed under contract with AHFC.
Barrow Inupiat Heritage Center Comprehensive Energy Audit
4
"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."
Barrow Inupiat Heritage Center Comprehensive Energy Audit
5
Investment Grade Energy Audit
Barrow Inupiat Heritage Center
1. Executive Summary: The Barrow IHC (Inupiat Heritage Center) and
Tuzzy Library Building was constructed in 1998. During the time of
this audit, the Tuzzy Library was getting a 4000 sf addition. The
addition is not included in this audit since it has no benchmark utility
data.
Table 1
2010 2011
Utility Consumption Cost/Year Consumption Cost/Year
Electricity-kWh 464,100 $50,865 465,700 $51,037
Natural Gas - CCF 28,771 $8,823 36,127 $11,603
Total Energy Costs $59,688 $62,100
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
IHC/Library BRW Average Public Works
Energy Use Index (EUI)
kBTU/SF
141 211 154
Energy Cost Index (ECI) $1.77 $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 or those that are 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 re-lamped and re-ballasted to
maintain a standard lighting parts inventory, regardless of the
Barrow Inupiat Heritage Center Comprehensive Energy Audit
6
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 summarized below,
and are detailed in the attached AkWarm Energy Audit Report along
with specific payback times, as well as estimated installation costs
and estimated energy savings. Several of the EEMs are not modeled
in the AkWarm-C program because they will require engineering to
determine costs and payback once the technical savings are
estimated. The higher priority items are summarized below:
a. Thermostat Setbacks: Heating a large unoccupied space to
room temperature is a tremendous waste of energy. It is
recommended that programmable setback thermostats be
installed in heating zones that will not affect artifact storage or
display areas and that the unoccupied set temperature be
reduced to 55°F. This EEM has a very fast payback period
regardless of how many zones it is applied to.
The auditor understands that this building houses delicate
artifacts that may not respond well to the proposed
temperature fluctuations. It is recommended that an expert on
artifact storage be consulted before applying this EEM to any
building zone.
b. Lighting Control Upgrades: During the audit, most of the
building’s lights were found to be left on with nobody in the
space. Occupant controls sense the presence of occupants,
turn the lights on at a pre-determined level, and then turn the
lights off after a programmed time period of no occupancy. It is
recommended that motion-sensing occupancy sensors be
installed in the existing duplex switch boxes for all offices,
corridors, and stairwells, and that ceiling-mounted dual-
technology sensors be installed where obstacles may interfere
with line-of-sight sensors, such as in lavatories, work rooms,
and storage areas. The second technology in these sensors
activates lighting based on sound. 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.
Barrow Inupiat Heritage Center Comprehensive Energy Audit
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For art and artifact display purposes, it may be desirable to
keep the display lights on. However, these lights may also be
equipped with bi-level switching occupancy sensors. The lights
will remain at an adjustable dimmed level until a visitor
approaches, when the occupancy sensor will switch the lights
to full illumination. Given the amount of unoccupied time seen
by these spaces outside of tourist season, this EEM is highly
recommended.
c. Interior Lighting Upgrades: Most of the interior lights are
efficient fluorescents, but there are some very energy-hungry
halogen lights installed in the artifact display areas. It is
recommended that a lighting expert be retained to evaluate
current technology exhibit room lighting for potential savings.
d. Exterior Lighting Upgrades: The exterior high pressure
sodium lights operate during periods of darkness, which is
about half of the year. It is estimated that the use of LED
exterior lights can reduce the power consumption by 60% and
extend bulb replacement frequency to 5-10 years, yielding an
even better payback by reducing maintenance costs.
e. Headbolt Heater Controls: Studies have shown that leaving a
vehicle plugged in for more than four hours is an unnecessary
waste of energy regardless of outside temperature, as the
engine’s temperature typically stabilizes after that. Leaving
block, oil pan, and battery heaters energized when not needed
may waste up to $300 per year per car in electricity costs. To
reduce this cost, microprocessor-controlled duplex receptacles
have been developed that cycle power to the heaters based on
outside temperature. It is recommended that the existing
headbolt heater receptacles be replaced with these
temperature-controlled receptacles at a cost of $200 each.
f. Refrigerator: Newer Energy Star refrigerators use about 411
watts, compared to 1990 versions that used 1,044 watts. It is
recommended that, at EOL (End Of Life), the existing
refrigerators be replaced with an Energy Star equivalent unit.
Barrow Inupiat Heritage Center Comprehensive Energy Audit
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The cost difference is about $75 per unit, which will be realized
in energy savings in less than two years.
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 or cargo.
The 22 priority recommendations in the detailed report estimate to save
$10,486/year, with an installed cost of $9,951. This does not include
design or CA services, but overall it does indicate a cost effective
energy savings program.
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
Barrow Inupiat Heritage Center Comprehensive Energy Audit
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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
costs are excluded. Costs are derived from Means Cost Data,
industry publications, experience of the auditor, local
contractors and equipment suppliers. 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.
Barrow Inupiat Heritage Center Comprehensive Energy Audit
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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 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. Price Brower,
manager of the facility, was very helpful in offering any
assistance requested during the audit.
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
Barrow Inupiat Heritage Center Comprehensive Energy Audit
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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. WHPacific, Inc (Audit Preparer): This firm specializes in
mechanical, electrical, and civil design, and has a mechanical
EIT who is a Certified Energy Auditor in Training. This CEIT
has received additional training from Richard S. Armstrong,
PE, LLC to acquire further specific information regarding audit
requirements and potential EEM applications. WHPacific
prepared this audit and submitted it for review by Richard S.
Armstrong, PE, LLC.
4. Building Description and Function: The subject structure is called
the Barrow Inupiat Heritage Center and Tuzzy Library. Since its
construction in 1998, the only remodel the building has seen is a
4000 sf addition to the library portion. The building is mostly a tall
single story structure with two small upper level mechanical rooms.
This building has spaces which function as a museum, artifact
storage and preparation space, office, traditional craft shop, library,
and multipurpose assembly room.
a. Heating System: The building heating system consists of two
Burnham model V1110, 1941 MBH cast iron boilers. The
boilers provide heat to the air handlers baseboard heaters, and
unit heater through two hot glycol circulation loops. Pumps 1
and 2 are B&G 5 hp circ pump assemblies, and pumps 3 and 4
are Grundfos 1.5 hp circ pumps. Pumps 3 and 4 are both in
“hand,” which means they may be overwhelming the flow
Barrow Inupiat Heritage Center Comprehensive Energy Audit
12
requirements of loop 2. Pump 4 should be placed on “auto” in
order to bring the heating loop back to its design efficiency and
intended redundancy.
b. Ventilation System: There are four air handling units and
seven exhaust fans in this building. All air handlers are
equipped with VFDs that are running in midrange, indicating
that they are properly sized and loaded. The VFDs prevent the
over-intake of unconditioned outside air and give the AHUs
flexibility in handling changing ventilation loads.
c. Plumbing System: Toilets, lavs, and kitchen/break facilities
are provided for the workers and visitors. There is also a large
sink and shower alcove for use in skinning, butchering, and
cleaning of animals for subsistence use. All drains are
gathered into the utility box underneath the building.
d. Domestic Hot Water: Hot water for the east side of the
building is generated using a sidearm water heater that draws
heat from the boilers. A 4.5 kW electric water heater is installed
that provides hot water for the west side of the building.
e. Lighting: This building has a wide variety of lighting to meet its
multiple purposes. Lighting in the office spaces, corridors,
multipurpose, and work rooms is primarily biaxial fluorescent
and T8 fixtures. The lobby, exhibit room, and traditional room
are lit using metal halide fixtures. Many of the display cases
are illuminated using IR-filtered halogen lamps, and exterior
lights are mostly 75W HPS wall packs.
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 and input to AkWarm-C to provide more accuracy. The
energy consumption data is presented and graphed in the attached
AkWarm-C program results.
The average electric consumption for the building is 464,900
kWh/year at an average cost of $50,955. The average natural gas
Barrow Inupiat Heritage Center Comprehensive Energy Audit
13
consumption was 29,451 CCF/year, at an average annual cost of
$29,451/year.
6. Energy Efficiency Measures Considered or Recommended: The
building was examined for application of a multitude of potential
EEMs. 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.
General EEM categories were discussed in this report’s executive
summary. Each specific EEM is detailed in the attached AkWarm-C
report that comprises Appendix B.
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.
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 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
Barrow Inupiat Heritage Center Comprehensive Energy Audit
14
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.
Appendix A: Photos
15
The Barrow Inupiat
Heritage Center from
the northeast
The IHC lobby,
looking south
Stairs and elevator to
the whale-watching
perch
Appendix A: Photos
16
Exhibit room
Artifacts on display in
the exhibit room
Conference room
Appendix A: Photos
17
Traditional room
Gift Shop
Artifact preparation
room
Appendix A: Photos
18
Boilers 1 and 2
Circ pumps #1 and 2
on the bottom and #3
and 4 on the top
AHU-1
Appendix A: Photos
19
VFD for AHU-1
West ventilation
room. AHU-2 is on
the right.
Appendix A: Photos
20
East ventilation room. AHU-4 is at the far
end.
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 21
21
ENERGY AUDIT REPORT – PROJECT SUMMARY – Created 4/16/2012 12:30 AM
General Project Information
PROJECT INFORMATION AUDITOR INFORMATION
Building: Inupiat Heritage Center Auditor Company: Richard S. Armstrong, PE, LLC
Address: 5421 North Star St Auditor Name: Richard S. Armstrong, David Robbins
City: Barrow Auditor Address: 2321 Merrill Field Drive C-6
Anchorage, Ak 99501 Client Name: Beverly Hugo
Client Address: 5421 North Star St
PO Box 749
Barrow, AK 99723
Auditor Phone: (907) 229-0331
Auditor FAX: ( ) -
Client Phone: (907) 852-4594 Auditor Comment:
Client FAX:
Design Data
Building Area: 29,406 square feet Design Heating Load: Design Loss at Space: 1,008,403
Btu/hour
with Distribution Losses: 1,008,403 Btu/hour
Plant Input Rating assuming 82.0% Plant Efficiency and 25%
Safety Margin: 1,537,200 Btu/hour
Note: Additional Capacity should be added for DHW load, if
served.
Typical Occupancy: 11 people Design Indoor Temperature: 65.1 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 & Electric-elec - Commercial
- Lg
Natural Gas Provider: Barrow Utilities & Electric-gas -
Commercial - Lg
Average Annual Cost/kWh: $0.110/kWh Average Annual Cost/ccf: $0.307/ccf
Annual Energy Cost Estimate
Description Space
Heating
Space
Cooling
Water
Heating Lighting Refrige
ration
Other
Electri
cal
Cooking Clothes
Drying
Ventilatio
n Fans
Service
Fees
Total
Cost
Existing
Building
$17,945 $0 $54 $16,897 $2,203 $5,895 $0 $0 $8,544 $1,222 $52,760
With
Proposed
Retrofits
$15,994 $0 $55 $11,710 $251 $4,497 $0 $0 $8,544 $1,222 $42,273
SAVINGS $1,951 $0 -$1 $5,187 $1,952 $1,398 $0 $0 $0 $0 $10,487
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 22
22
$0
$20,000
$40,000
$60,000
Existing Retrofit
Service Fees
Ventilation and Fans
Space Heating
Refrigeration
Other Electrical
Lighting
Domestic Hot Water
Annual Energy Costs by End Use
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 23
23
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
1 HVAC And DHW change CP-4 to "auto" $255 $1 4392.44 0
2 Refrigeration: Full-
sized Refrigerator
Replace with 3 Refrigerator,
Energy Star
$1,952 $200 60.42 0.1
3 Setback Thermostat:
Lobby/Halls/Restroom
s
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Lobby/Halls/Restrooms
space.
$459 $200 28.52 0.4
4 Setback Thermostat:
Library
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Library space.
$370 $200 22.99 0.5
5 Setback Thermostat:
Multipurpose room
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Multipurpose room space.
$272 $200 16.90 0.7
6 Setback Thermostat:
Upper Level
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Upper Level space.
$232 $200 14.41 0.9
7 Lighting: B biaxial,
offices
Remove Manual Switching
and Add new Occupancy
Sensor
$460 $200 14.24 0.4
8 Lighting: J2,
giftshop/exhibit
Remove Manual Switching
and Add new Occupancy
Sensor, Multi-Level Switch
$1,584 $800 12.25 0.5
9 Lighting: G, work
rooms/mech/artifact
store
Add new Occupancy Sensor
and Improve Manual
Switching
$1,215 $800 9.41 0.7
10 Setback Thermostat:
Traditional Room
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Traditional Room space.
$148 $200 9.19 1.4
11 Lighting: A, classroom Remove Manual Switching
and Add new Occupancy
Sensor
$215 $150 8.86 0.7
12 Setback Thermostat:
Offices
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Offices space.
$131 $200 8.15 1.5
13 Other Electrical:
Headbolt heaters
Add new Other Controls and
Improve Manual Switching
$1,398 $1,200 7.21 0.9
14 Lighting: F,
office/conference
Remove Manual Switching
and Add new Occupancy
Sensor
$335 $300 6.91 0.9
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 24
24
PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES
Rank Feature Recommendation Annual Energy
Savings
Installed
Cost
SIR Payback
(Years)
15 Setback Thermostat:
Boiler room, security
room, corridor, and
receiving bay
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Boiler room, security room,
corridor, and receiving bay
space.
$105 $200 6.55 1.9
16 Lighting: C,
storage/toilet/entry/kitc
hen/work rooms
Remove Manual Switching
and Add new Occupancy
Sensor
$400 $600 4.12 1.5
17 Lighting: F1, offices Remove Manual Switching
and Add new Occupancy
Sensor
$216 $400 3.34 1.9
18 Lighting: M, display
cases
Add new Multi-Level Switch
and Improve Manual
Switching, Occupancy Sensor
$166 $400 2.57 2.4
19 Lighting: K, exterior
wall pack
Replace with 15 LED 34W
Module StdElectronic
$393 $2,500 2.25 6.4
20 Lighting: W, exterior
signs
Replace with 2 LED 72W
Module StdElectronic
$89 $600 2.04 6.8
21 Lighting: U1,
conference/traditional
room
Remove Manual Switching
and Add new Occupancy
Sensor
$24 $100 1.47 4.2
22 Lighting: U, traditional
room
Add new Occupancy Sensor
and Improve Manual
Switching
$70 $300 1.44 4.3
TOTAL $10,486 $9,951 8.27 0.9
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
Exterior Doors – Replacement
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
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 25
25
Rank Location Estimated Air Leakage Recommended Air Leakage
Target
Installed
Cost
Annual
Energy
Savings
2. Mechanical Equipment
Mechanical
Rank Recommendation Installed
Cost
Annual
Energy
Savings
1 change CP-4 to "auto" $1 $255
Setback Thermostat
Rank Location Size/Type/Condition Recommendation Installed
Cost
Annual
Energy
Savings
3 Lobby/Halls/Restroo
ms
Existing Unoccupied Heating
Setpoint: 65.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Lobby/Halls/Restrooms space.
$200 $459
4 Library Existing Unoccupied Heating
Setpoint: 65.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Library space.
$200 $370
5 Multipurpose room Existing Unoccupied Heating
Setpoint: 65.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Multipurpose room space.
$200 $272
6 Upper Level Existing Unoccupied Heating
Setpoint: 65.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Upper Level space.
$200 $232
10 Traditional Room Existing Unoccupied Heating
Setpoint: 65.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Traditional Room space.
$200 $148
12 Offices Existing Unoccupied Heating
Setpoint: 67.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Offices space.
$200 $131
15 Boiler room, security
room, corridor, and
receiving bay
Existing Unoccupied Heating
Setpoint: 65.0 deg F
Implement a Heating
Temperature Unoccupied
Setback to 55.0 deg F for the
Boiler room, security room,
corridor, and receiving bay
space.
$200 $105
Ventilation
Rank Recommendation Cost Annual
Energy
Savings
3. Appliances and Lighting
Lighting Fixtures and Controls
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 26
26
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
7 B biaxial, offices 19 FLUOR [Unknown Lamp] with
Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$200 $460
8 J2, giftshop/exhibit 59 INCAN Reflector, Halogen
45W PAR38 with Manual
Switching
Remove Manual Switching
and Add new Occupancy
Sensor, Multi-Level Switch
$800 $1,584
9 G, work
rooms/mech/artifact
store
33 FLUOR (4) T8 4' F32T8 32W
Standard Instant StdElectronic
with Manual Switching
Add new Occupancy Sensor
and Improve Manual
Switching
$800 $1,215
11 A, classroom 12 FLUOR (3) T8 4' F32T8 32W
Standard Instant StdElectronic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$150 $215
14 F, office/conference 3 FLUOR (12) T8 4' F32T8 32W
Standard Instant StdElectronic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$300 $335
16 C,
storage/toilet/entry/ki
tchen/work rooms
29 FLUOR (2) T8 4' F32T8 32W
Standard Instant StdElectronic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$600 $400
17 F1, offices 8 FLUOR (6) T8 4' F32T8 32W
Standard Instant StdElectronic
with Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$400 $216
18 M, display cases 26 INCAN [Unknown Lamp] with
Manual Switching
Add new Multi-Level Switch
and Improve Manual
Switching, Occupancy Sensor
$400 $166
19 K, exterior wall pack 15 HPS 70 Watt StdElectronic
with On/Off Photoswitch
Replace with 15 LED 34W
Module StdElectronic
$2,500 $393
20 W, exterior signs 2 HPS 150 Watt StdElectronic
with On/Off Photoswitch
Replace with 2 LED 72W
Module StdElectronic
$600 $89
21 U1,
conference/traditional
room
4 FLUOR [Unknown Lamp] with
Manual Switching
Remove Manual Switching
and Add new Occupancy
Sensor
$100 $24
22 U, traditional room 6 FLUOR (2) T8 4' F32T8 32W
Standard Instant StdElectronic
with Manual Switching
Add new Occupancy Sensor
and Improve Manual
Switching
$300 $70
Refrigeration
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
2 Full-sized
Refrigerator
3 Refrigerator Replace with 3 Refrigerator,
Energy Star
$200 $1,952
Other Electrical Equipment
Rank Location Existing Recommended Installed
Cost
Annual
Energy
Savings
13 Headbolt heaters 12 Headbolt heater with Manual
Switching
Add new Other Controls and
Improve Manual Switching
$1,200 $1,398
Cooking/Clothes Drying
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 27
27
Rank Recommended Installed
Cost
Annual
Energy
Savings
AHU-1
West Ventilation room and AHU-2
IHC from northeast
CP-1 and CP-2 on bottom. CP-3 and CP-4 on top
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 28
28
Boiler 1 and 2
VFD for AHU-1
Artifact preparation room
Exhibit room
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 29
29
Artifacts on display in the exhibit room
Giftshop
East Ventilation room. AHU-4 at far end
Conference room
Appendix B
Energy Audit – Energy Analysis and Cost Comparison
AkWarm Commercial Audit Software
Inupiat Heritage Center
Page 30
30
Traditional room
Looking south through the lobby
Stairs and elevator to whale watching perch
RF-1 and VFDs for AHU-1 and RF-1
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AkWarmCalc Ver 2.1.4.2, Energy Lib 3/1/2012
Appendix C: Mechanical Schedules 31
Appendix C: Mechanical Schedules 32
Appendix D: Building Plan 33
Appendix D: Building Plan 34
Appendix E: Lighting Plan 35
Appendix E: Lighting Plan 36
Appendix F: Mechanical Schematics 37
Appendix F: Mechanical Schematics 38
Appendix F: Mechanical Schematics 39
Appendix F: Mechanical Schematics 40
Appendix F: Mechanical Schematics 41
Appendix F: Mechanical Schematics 42