HomeMy WebLinkAboutPilot Station Post Install Report 06-20-2012-VEEP
EENNEERRGGYY AAUUDDIITT
PPOOSSTT IINNSSTTAALLLLAATTIIOONN RREEPPOORRTT
Results and Recommendations from
Energy Audit of Pilot Station
For VEEP Grants
City of Pilot Station, Alaska
June 20, 2012
Prepared By: Prepared For:
Ameresco, Inc.
6643 Brayton Drive
Anchorage, AK 99507
Alaska Energy Authority
City of Pilot Station
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page i Pilot Station, AK
TTAABBLLEE OOFF CCOONNTTEENNTTSS
EXECUTIVE SUMMARY AND PREFACE .................................................................................. 1
1.0 BUILDING DESCRIPTIONS ............................................................................................ 3
1.1 PILOT STATION CITY OFFICE .................................................................................. 3
1.2 PILOT STATION ATCO BUILDING (HOTEL) ............................................................... 5
1.3 PILOT STATION GARAGE/MAINTENANCE SHOP ........................................................ 7
1.4 PILOT STATION TEMPORARY POLICE STATION ......................................................... 9
1.5 PILOT STATION SCHOOL ...................................................................................... 11
1.6 TUTALGAG CABLEVISION OFFICE .......................................................................... 13
1.7 PILOT STATION W ATER TREATMENT PLANT ........................................................... 15
1.8 OTHER BUILDINGS VISITED ................................................................................... 17
2.0 UTILITIES ..................................................................................................................... 18
2.1 ELECTRICITY ....................................................................................................... 18
2.1.1 Electricity Usage Profiles ........................................................................19
2.2 FUEL ................................................................................................................... 22
2.2.1 Fuel Usage Profiles ................................................................................22
3.0 OPERATIONS/MAINTENANCE PRACTICES .............................................................. 25
4.0 ENERGY CONSERVATION OPPORTUNITIES ............................................................ 26
4.1 ECO DESCRIPTIONS ............................................................................................ 27
4.1.1 Building Envelope Opportunities .............................................................27
4.1.2 Controls Opportunities ............................................................................27
4.1.3 Electrical Opportunities ...........................................................................28
4.1.4 Mechanical Opportunities .......................................................................29
5.0 FINAL COSTING AND CHANGES FROM INITIAL REPORTING .................................. 30
5.1 CHANGES FROM INITIAL REPORTING ..................................................................... 30
5.2 FUNDING ALLOCATION SUMMARY TABLES ............................................................. 32
AAPPPPEENNDDIICCEESS
APPENDIX A – VEEP PROJECT COSTS & EXPECTED SAVINGS ...................................... A-1
APPENDIX B – ECO CALCULATION RESULTS – NOT FUNDED ......................................... B-1
APPENDIX C – EQUATIONS USED IN CALCULATIONS ...................................................... C-1
APPENDIX D – POST INSTALLATION PHOTOS ................................................................... D-1
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 1 Pilot Station, AK
EEXXEECCUUTTIIVVEE SSUUMMMMAARRYY AANNDD PPRREEFFAACCEE
This Post Installation Report summarizes the results of an Ameresco Energy Audit of the City of Pilot
Station, the initial energy savings measures identified and proposed, and any changes that may have
occurred throughout the installation process. The City of Pilot Station is a recipient of an Alaska Energy
Authority (AEA) Village Energy Efficiency Program (VEEP) grant of $150,000.
Ameresco engineers conducted an energy audit of the City of Pilot Station on December 15-16, 2010.
The table below shows the buildings audited and their respective square footages.
City of Pilot Station - Building Summary
Building Category Square Footage
City Office (Public Safety) Public Building 5,280
ATCO Building (Hotel) Public Building 1,210
Garage/Maintenance Shop Public Facility 2,016
Lift Station Public Facility 128
Temporary Police Station Public Building 1,600
School School 36,150
Tutalgag Cablevision Office Public Building 144
Water Treatment Plant Public Facility 836
The audit identified existing types, conditions, operating modes, and energy consumption profiles for a
variety of buildings, facilities and systems. The audit also identified all cost-effective system and facility
modifications, adjustments, alterations, additions, and retrofits. Systems investigated during the audit
included heating, ventilation, interior and exterior lighting, process exhaust, domestic hot water, motors,
building envelopes, utility metering systems, and energy management control systems (EMCS).
The table below shows the actual project costs as well as expected savings, allocated by grant. See
Appendix A for more detailed calculation results. Project costs include costs incurred from the site visit,
engineering time, materials cost, and labor cost, as well as Ameresco’s markup. It is important to note
that the simple paybacks (SPBs) have been determined according to ECO type. For example, the SPB for
an electrical ECO is calculated using only the annual kWh savings, even though the equivalent annual
fuel gallon monetary savings is reported.
VEEP ECOS - PROJECT COSTS & EXPECTED SAVINGS
ECO Cost Savings SPB
B01 - WEATHER-STRIPPING $5,959.33 $ 774.81 7.69
B02 - THERMAL INSULATION UPGRADE $17,545.23 $ 358.80 48.90
C01 - THERMOSTAT UPGRADE $1,905.46 $ 800.89 2.38
E01 - T8 LIGHTING UPGRADE $8,300.43 $ 120.36 68.96
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 2 Pilot Station, AK
VEEP ECOS - PROJECT COSTS & EXPECTED SAVINGS
ECO Cost Savings SPB
E02 - T5 LIGHTING UPGRADE $4,043.10 $ 202.42 19.97
E03 - INSTALL OCCUPANCY SENSORS $7,324.39 $ 1,507.65 4.86
E05 - CFL UPGRADE $1,321.07 $ 237.69 5.56
E06 - STREETLIGHT UPGRADE $56,326.43 $ 5,522.76 10.20
M01 - BOILER TUNE-UP $7,700.13 $12,024.15 0.64
M02 - FURNACE UPGRADE $19,620.18 $ 189.94 103.30
M04 - DOMESTIC WATER HEATER UPGRADE $17,750.17 $ 538.75 32.95
AVAILABLE FUNDING $2,204.08
* Available funding allocated to Kotlik.
TOTAL $150,000.00 $22,278.22 6.63
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 3 Pilot Station, AK
11..00 BBUUIILLDDIINNGG DDEESSCCRRIIPPTTIIOONNSS
11..11 PPIILLOOTT SSTTAATTIIOONN CCIITTYY OOFFFFIICCEE
Description: The Pilot Station City Office is a relatively new building, constructed in 2008. Typical
operating hours are 0900 to 1700 hours, Monday through Friday. This building also has a Community
Hall used for special occasions such as native dancing and various ceremonies. During such occasions,
additional operating hours are typically 1800 to 2200 hours.
General Conditions: The building is in good condition overall, but is still settling. If the soil does not
compact properly, this could require additional action to maintain the structural integrity of the building.
Pictures of general conditions found during the field audit immediately follow this building description.
Building Envelope: The building is well constructed, and most building envelope components are in
good condition – walls, windows, doors, and the roof. The exterior doors, however, could use a weather-
stripping upgrade, as most have no weather-stripping at all. Because of this, the entry door is allowing
warm air to escape the building; the entry door also freezes shut from time to time.
Heating: Three Toyotomi continuous water heaters provide the building with hydronic heating. There is
also a Fantech heat recovery ventilator (HRV) to recycles the exhausted heat. The hydronic heating
system has 6 zones, each with its own thermostat.
Controls: Building heating is controlled by programmable thermostats. The City clerk believes these
thermostats are programmed correctly to have one setting during occupied hours and heating set backs
during unoccupied hours.
Lighting: Interior lighting consists of T8 fluorescent fixtures with electronic ballasts. There are no
occupancy sensors in the building.
Domestic Water: A Toyotomi Oil Miser instantaneous water heater provides the building with domestic
hot water.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 4 Pilot Station, AK
Building Photos: Pilot Station City Office
Entrance Door Mechanical Room – Water Heaters
Toyostove Fuel Lifter Pump Antifreeze Feeder
Fantech HRV Uninsulated Pipes
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 5 Pilot Station, AK
11..22 PPIILLOOTT SSTTAATTIIOONN AATTCCOO BBUUIILLDDIINNGG ((HHOOTTEELL))
Description: The ATCO building was Pilot Station’s old city office, but is now used as a hotel or income
property. This building is now only used occasionally and does not have standard operating hours.
General Conditions: The building is in fair condition, considering its age. No major defaults were found
during the course of the audit walkthrough.
Pictures of general conditions found during the field audit immediately follow this building description.
Building Envelope: The building envelope of the building is in fair condition overall. The roof is not
leaking, and there is no melted snow as evidence of poor insulation. This, however, could be due to the
limited use of the building.
Heating: A Miller forced air furnace provides the building with space heating. A Monitor 2400 oil stove
provides additional heat to one room in the building.
Controls: A mechanical thermostat controls building heating and is located in the kitchen. The Monitor
2400 has an internal thermostat which controls its output.
Lighting: Interior lighting consists of T12 fluorescent fixtures with magnetic ballasts. There are no
occupancy sensors in the building. Several incandescent fixtures also light the facility and building
exterior.
Domestic Water: An Amtrol Well-X-Trol well tank and Toyotomi instantaneous water heater provide
the building with domestic hot water.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 6 Pilot Station, AK
Building Photos: Pilot Station ATCO Building (Hotel)
Exterior Windows Monitor Heater
Amtrol Well-X-Trol Well Tank Toyotomi Instantaneous Water Heater
Furnace Stack Miller Furnace
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 7 Pilot Station, AK
11..33 PPIILLOOTT SSTTAATTIIOONN GGAARRAAGGEE//MMAAIINNTTEENNAANNCCEE SSHHOOPP
Description: The Pilot Station Garage and Maintenance Shop functions as the main maintenance facility
for the village. Typical operating hours are 0900 to 1700 hours, Monday through Friday.
General Conditions: The garage is in fair condition overall, with no major faults or defects found over
the course of the audit walkthrough.
Pictures of general conditions found during the field audit immediately follow this building description.
Building Envelope: The building is in fair condition overall. The roof is in fair condition, as are the
structure walls and the exterior doors. Weather-stripping is in poor condition and is need of an upgrade.
Heating: Two oil-fired Modine POR145 unit heaters provide the building with heating. Installing two
used oil furnaces would generate substantial energy savings.
Controls: Building heating is controlled by a mechanical thermostat.
Lighting: Interior lighting is provided by T12 fluorescent fixtures with magnetic ballasts in the
workstation areas and high pressure sodium (HPS) high bay fixtures. There are no occupancy sensors in
the building.
Domestic Water: There is not a domestic water system in place at the Garage and Maintenance Shop.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 8 Pilot Station, AK
Building Photos: Pilot Station Garage/Maintenance Shop
Overhead Doors not Flush with Floor High Bay Fixtures
Modine Oil-Fired Unit Heater Workstation Area
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 9 Pilot Station, AK
11..44 PPIILLOOTT SSTTAATTIIOONN TTEEMMPPOORRAARRYY PPOOLLIICCEE SSTTAATTIIOONN
Description: The current Police Station in Pilot Station is just a temporary facility while the long-term
Police Station is being renovated. This facility operates 24 hours a day, 7 days a week.
General Conditions: The building was originally constructed in the 1970’s and is in fair condition
overall. This building has many opportunities for improvement; however, Ameresco does not suggest
any energy improvements at this facility at this time. This is due to the temporary occupancy of the
building and limited funding available.
Pictures of general conditions found during the field audit immediately follow this building description.
Building Envelope: The building is showing many signs of weathering and age. The roof is in fair
condition, but shows no signs of water leakage. Windows have been boarded up, and the exterior doors
are in poor condition. Existing weather-stripping is deteriorating and inadequate.
Heating: A Nordine fuel oil furnace provides the building with space heating. This furnace is an older
model and is quite run down because of age. A newer, more efficient model would generate substantial
energy savings with the building’s current use.
Controls: Space heating is controlled by a single mechanical thermostat.
Lighting: Interior lighting is primarily T8 fluorescent fixtures with electronic ballasts. There are also
several incandescent fixtures in the facility. There are no occupancy sensors.
Domestic Water: An American water heater provides the building with domestic hot water.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 10 Pilot Station, AK
Building Photos: Pilot Station Temporary Police Station
Interior Lighting Nordine Furnace
Furnace Interior Honeywell Thermostat
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 11 Pilot Station, AK
11..55 PPIILLOOTT SSTTAATTIIOONN SSCCHHOOOOLL
Description: The Pilot Station school houses elementary through high school students from the village.
Typical operating hours for the school are 0800 to 1700 hours, Monday through Friday, but the building
is also used for after school activities and events.
General Conditions: The building is in good condition overall. There is some room for improvement
with the controls system and set point, but no major faults or defects were noticed during the course of the
audit walkthrough.
Pictures of general conditions found during the field audit immediately follow this building description.
Building Envelope: The building is in good condition and is well-maintained. The roof is in good
condition and shows no signs of leakage or inadequate insulation. Windows are in good condition.
Exterior doors are in good condition, though the weather-stripping needs to be replaced.
Heating: Normally, two Weil-McLain model 788 oil-fired boilers provide the building with space
heating. At the time of the audit, only one of these boilers was operational. These boilers are rated at
82% thermal efficiency and 84% combustion efficiency. A combustion analysis showed the operational
boiler to be 80.8% efficient.
Controls: There are several mechanical thermostats in the facility, though not all of them function
properly. The current set point temperature throughout much of the facility is 80°F.
Lighting: The building is primarily lit by T8 fluorescent fixtures with electronic ballasts. The classrooms
are the only rooms with occupancy sensors. The high bay gym lighting appears to be in good condition;
due to the short nature of the audit, exact wattages and lamp types are not available at this time.
Domestic Water: A point-of-use electric water heater provides the building with domestic hot water.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 12 Pilot Station, AK
Building Photos: Pilot Station School
Gym High Bay Lighting Weil-McLain Boilers
Fuel Oil Day Tank Circulating Pumps
Amtrol Well Tank Fire Suppression System
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 13 Pilot Station, AK
11..66 TTUUTTAALLGGAAGG CCAABBLLEEVVIISSIIOONN OOFFFFIICCEE
Description: The Tutalgag Cablevision Office houses all of the GCI cable services equipment for the
village. This building does not have typical operational hours, as it is not staffed regularly. A single
operator maintains the facility whenever there is need for him.
General Conditions: The building is in fair condition overall and is showing signs of weathering and
age, having been constructed in the 1970’s. All of the equipment in the facility is run by uninterruptible
power supplies (UPS’s).
Pictures of general conditions found during the field audit immediately follow this building description.
Building Envelope: The building is in fair condition. Exterior doors are in poor condition and need to be
replaced, as well as need new weather-stripping. The roof is in fair condition and could use a thermal
insulation upgrade. There are no windows in the facility.
Heating: Two oil stoves provide the building with space heating; one is a Toyostove Laser 56, and the
other is a Monitor 2400. The Toyostove runs constantly, and the Monitor is used as a backup in case the
Toyostove fails. At the time of the audit, the Monitor stove was not on.
Controls: There are no additional building controls for this facility.
Lighting: Interior lighting is provided by T12 fluorescent fixtures with magnetic ballasts. There are no
occupancy sensors in the building.
Domestic Water: There is not a domestic water system in the building.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 14 Pilot Station, AK
Photos: Tutalgag Cablevision Office
Toyostove Laser 56 Heater Monitor 2400 Heater - Off
GCI Equipment Attic Insulation
No Weather-stripping on Doors
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 15 Pilot Station, AK
11..77 PPIILLOOTT SSTTAATTIIOONN WWAATTEERR TTRREEAATTMMEENNTT PPLLAANNTT
Description: The Pilot Station Water Treatment Plant provides clean water to the entire city. The plant
has a single operator, but receives extra maintenance help when needed. The building is in good
condition. Most of the equipment housed at the facility has been well-maintained, though there are
several outdated pumps and motors that could be replaced with more efficient models. The building is
typically staffed 3 hours a day, 7 days a week.
General Conditions: The water treatment plant is in good condition overall, having been built in 2005.
No major defects were noticed during the audit walkthrough.
Pictures of general conditions found during the field audit immediately follow this building description.
Building Envelope: The building is in good condition, as expected because of its youth. The roof is in
good condition and shows no signs of leakage or poor insulation. Windows and doors are in good
condition, though the existing weather-stripping could be upgraded.
Heating: Two oil-fired Weil-McLain Gold Oil boilers provide the building with heating. A combustion
analysis at the time of the audit showed B-1 to be operating at 84.8% combustion efficiency, and B-2 was
operating at 83.4% combustion efficiency. These boilers are rated at 85% thermal efficiency.
Controls: Building heating is controlled by mechanical thermostats.
Lighting: Interior lighting consists mainly of T12 fluorescent fixtures with magnetic ballasts. There are
no occupancy sensors in the building.
Domestic Water: A 19-gallon electric American water heater provides the building with domestic hot
water.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 16 Pilot Station, AK
Building Photos: Pilot Station Water Treatment Plant
Weil-McLain Boilers Circulating Pumps
Circulating Pumps Perkins Generator
American Water Heater
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 17 Pilot Station, AK
11..88 OOTTHHEERR BBUUIILLDDIINNGGSS VVIISSIITTEEDD
Lift Station: The Pilot Station Lift Station is a new facility built in 2008 and is in good condition overall.
This building does not have operational shift hours and is just used as needed. The structure, roof, walls,
and doors are all in good condition; exterior doors have adequate weather-stripping. There is no heating
equipment at this building. Lighting is T8 fluorescent fixtures with electronic ballasts, but there are no
occupancy sensors in the building.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 18 Pilot Station, AK
22..00 UUTTIILLIITTIIEESS
22..11 EELLEECCTTRRIICCIITTYY
The City of Pilot Station purchases its electricity from the Alaskan Village Electric Cooperative (AVEC).
Village facilities are billed on an electric use and fuel use to provide the electricity. Some facilities may
also qualify for a Power Cost Equalization (PCE) incentive. All buildings audited receive PCE
assistance, with the exception of the Pilot Station School. The AVEC rates for the City of Pilot Station
are listed below.
Current Rates as of January 2011
AVEC Cost of Fuel (Added to Customer Electric Bill) $ 0.2291
Rate Per kWh, Fuel Cost Included (1-700 kWh) $ 0.5291
Rate Per kWh, Fuel Cost Included (Over 700 kWh) $ 0.4291
PCE Rate (1-700 kWh) $ 0.3138
PCE Rate (Over 700 kWh) $ 0.2858
Rates August 2010 - December 2010
AVEC Cost of Fuel (Added to Customer Electric Bill) $ 0.2258
Rate Per kWh, Fuel Cost Included (1-700 kWh) $ 0.5258
Rate Per kWh, Fuel Cost Included (Over 700 kWh) $ 0.4258
PCE Rate (1-700 kWh) $ 0.3107
PCE Rate (Over 700 kWh) $ 0.2827
Rates for Calculations, Including Fuel Cost and PCE Incentive
Rate for Calcs (1-700 kWh) $ 0.2153
Rate for Calcs (700+ kWh) $ 0.1433
The Lower Yukon School District (LYSD) has its own contract with AVEC to provide electricity to the
school. Rates are listed below.
AVEC Average Cost of Fuel $ 0.2194
Demand Cost, Per kW $ 45.00
Rate Per kWh, Fuel Cost Included (1-1,500 kWh) $ 0.3394
Rate Per kWh, Fuel Cost Included (Over 1,500 kWh) $ 0.2594
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 19 Pilot Station, AK
22..11..11 EElleeccttrriicciittyy UUssaaggee PPrrooffiilleess
Pilot Station ATCO Building Electric Usage
0
500
1000
1500
2000
2500
3000
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10
Oct-
10
Nov-
10kWh
Pilot Station City Office Electric Usage
0
500
1000
1500
2000
2500
3000
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10
Oct-
10
Nov-
10kWh
Pilot Station Garage/Maintenance Shop Electric Usage
0
200
400
600
800
1000
1200
1400
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10
Oct-
10
Nov-
10kWh
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 20 Pilot Station, AK
Pilot Station Lift Station Electric Usage
0
2000
4000
6000
8000
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10
Oct-
10
Nov-
10kWh
Pilot Station Police Station Electric Usage
0
100
200
300
400
500
600
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10
Oct-
10
Nov-
10kWh
Pilot Station Tutlagag Cablevision Office Electric Usage
0
500
1000
1500
2000
2500
3000
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10
Oct-
10
Nov-
10kWh
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 21 Pilot Station, AK
Pilot Station Water Plant Electric Usage
0
2000
4000
6000
8000
10000
12000
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-
10
Aug-
10
Sep-
10
Oct-
10
Nov-
10kWh
Pilot Station Street Lights Electric Usage
0
10
20
30
40
50
60
70
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10
Oct-
10
Nov-
10kWh
School Electric Usage (kWh)
0
10000
20000
30000
40000
50000
60000
Oct-
09
Nov-
09
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10kWh
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 22 Pilot Station, AK
School Electric Demand (kW)
105
110
115
120
125
130
135
140
Oct-
09
Nov-
09
Dec-
09
Jan-
10
Feb-
10
Mar-
10
Apr-
10
May-
10
Jun-
10
Jul-10 Aug-
10
Sep-
10kW
22..22 FFUUEELL
The City of Pilot Station purchases its fuel from Crowley Petroleum Distribution, Inc. at a rate of
$3.2537/gallon.
The Pilot Station School has its own fuel contract with Crowley Petroleum Distribution, Inc. The school
purchases its fuel from Crowley at a rate of $2.99705/gallon.
22..22..11 FFuueell UUssaaggee PPrrooffiilleess
Pilot Station ATCO Building Fuel Usage
0
50
100
150
200
250
300
Nov-
10
Oct-
10
Sep-
10
Aug-
10
Jul-10 Jun-
10
May-
10
Apr-
10
Mar-
10
Feb-
10
Jan-
10
Dec-
09Fuel (gallons)
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 23 Pilot Station, AK
Pilot Station City Office Fuel Usage
0
100
200
300
400
500
Nov-
10
Oct-
10
Sep-
10
Aug-
10
Jul-10 Jun-
10
May-
10
Apr-
10
Mar-
10
Feb-
10
Jan-
10
Dec-
09Fuel (gallons)
Pilot Station Garage/Maintenance Shop Fuel Usage
0
50
100
150
200
250
300
Nov-
10
Oct-
10
Sep-
10
Aug-
10
Jul-10 Jun-
10
May-
10
Apr-
10
Mar-
10
Feb-
10
Jan-
10
Dec-
09Fuel (gallons)
Pilot Station Temporary Police Station Fuel Usage
0
100
200
300
400
Nov-
10
Oct-
10
Sep-
10
Aug-
10
Jul-
10
Jun-
10
May-
10
Apr-
10
Mar-
10
Feb-
10
Jan-
10
Dec-
09Fuel (gallons)
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 24 Pilot Station, AK
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 25 Pilot Station, AK
33..00 OOPPEERRAATTIIOONNSS//MMAAIINNTTEENNAANNCCEE PPRRAACCTTIICCEESS
The village has a number of designated maintenance personnel that seem to possess the basic skills
required to clean and maintain selected equipment. From Ameresco’s observations, if the equipment
should fall into disrepair, the staff does not have the training or experience to repair the equipment per the
manufacturer’s requirements and tends to piece together the equipment to maintain operation. Over time,
the systems no longer function as required, which currently appears to be the case of most equipment and
systems with in the village.
Operations and maintenance is one area in energy services where improvement and training costs are
lower than equipment replacement costs, and the energy efficiency return is high. During the site audit,
Ameresco found that outside of general cleaning, most of the equipment is not maintained to meet
standard manufacturers’ recommendations. Dirty filters, boilers in disrepair, systems altered, and control
systems disconnected are a result of limited funding and lack of system training. This results in excessive
energy use, premature equipment failure, and employee and resident discomfort. An annual system check
by a qualified burner service technician to perform services such as boiler cleaning, boiler tune ups,
system check out, and control system reviews will not only extend the overall life of the equipment, but
improve occupant comfort as well as increase and maintain long term energy efficiency.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 26 Pilot Station, AK
44..00 EENNEERRGGYY CCOONNSSEERRVVAATTIIOONN OOPPPPOORRTTUUNNIITTIIEESS
The ECO matrix below summarizes the energy conservation opportunities identified during the site
survey and baseline analysis. A description of each energy conservation opportunity follows the matrix.
Please Note: This matrix applies to the initial proposal and the ECOs identified during that stage of the
Pilot Station project. There are some ECOs included in this section that were not performed, or the scope
of work may have changed. Section 4 is for reference only. See Section 5 for updated project information.
ECO
No.
ECO Description ORIGINAL ECO MATRIX
B=Building Envelope;
C=Controls; E=Electrical;
M=Mechanical;
W=Water/Wastewater;
R=Renewable
PILOT STATION ATCO Building City Office Garage Shop School TV Cable Building Water Treatment Building Envelope
B01 Door Weather-stripping Upgrade X X X
B02 Insulation Upgrade X X X
Controls
C01 Thermostat Upgrade X X X
Electrical
E01 T-8 Lighting Upgrade X X X
E02 T-5 Lighting Upgrade X
E03 Occupancy Sensors X X X X X
E04 Premium Efficiency Motors X
E05 CFL Upgrade X X X
Mechanical
M01 Boiler Tune-Up X X
M02 Furnace Upgrade X
M03 Unit Heater Upgrade X
M04 DHW Upgrade X
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 27 Pilot Station, AK
VEEP – INITIAL PROPOSAL (FINAL AUDIT REPORT)
ECO Cost Savings SPB
B01 - WEATHERSTRIPPING $ 10,000.00 $ 1,147.94 8.71
B02 - THERMAL INSULATION UPGRADE $ 9,500.00 $ 358.80 26.48
C01 - THERMOSTAT UPGRADE $ 3,000.00 $ 14,870.46 0.20
E01 - T8 LIGHTING UPGRADE $ 6,000.00 $ 168.63 35.58
E02 - T5 LIGHTING UPGRADE $ 4,000.00 $ 202.42 19.76
E03 - INSTALL OCCUPANCY SENSORS $ 11,500.00 $ 1,780.31 6.46
E04 - PREMIUM EFFICIENCY MOTORS UPGRADE $ 8,000.00 $ 253.11 31.61
E05 - CFL LIGHTING UPGRADE $ 1,500.00 $ 237.69 6.31
M01 - BOILER TUNE-UP $ 10,000.00 $ 25,150.23 0.40
M02 - FURNACE UPGRADE $ 15,260.00 $ 189.94 80.34
M03 - UNIT HEATER UPGRADE $ 21,000.00 $ 191.06 109.91
M04 - DOMESTIC WATER HEATER UPGRADE $ 3,000.00 $ 538.75 5.57
DESIGN/AUDIT $ 2,500.00
AVAILABLE FUNDING $ 44,740.00
* Available funding allocated for travel expenses, shipping, additional labor, etc
TOTAL $ 150,000.00 $ 44,550.59 3.37
44..11 EECCOO DDEESSCCRRIIPPTTIIOONNSS
Below are the descriptions of the Energy Conservation Opportunities (ECOs) that Ameresco analyzed for
the Village of Pilot Station. These include Ameresco’s initial project recommendations for the village.
44..11..11 BBuuiillddiinngg EEnnvveellooppee OOppppoorrttuunniittiieess
B01 – Door Weather-stripping Upgrade
This ECO proposes applying weather stripping to exterior door perimeters to reduce air infiltration into
the buildings. Many building doors have existing weather stripping material which is worn or missing.
B02 – Thermal Insulation Upgrade
This ECO proposes installing blown-in roof insulation on existing building envelopes to reduce energy
consumption. Insulation can be added to roofs to increase or renew their insulating ratings (R-value).
44..11..22 CCoonnttrroollss OOppppoorrttuunniittiieess
C01 – Thermostat Upgrade
This ECO proposes replacing the outdated mechanical thermostats with 7-day programmable thermostats.
The programmable thermostats would allow a building’s HVAC system to be scheduled to operate in
comfortable conditions while occupied and allow for night set-backs.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 28 Pilot Station, AK
44..11..33 EElleeccttrriiccaall OOppppoorrttuunniittiieess
E01 – T8 Lighting Upgrade
This ECO proposes replacing current T-12 fluorescent lighting and magnetic ballast with T-8 lamps and
electronic ballasts. Post-light levels will be nearly equal or better to that of the existing lighting systems.
E02 – T5 Lighting Upgrade
This ECO proposes replacing high intensity discharge (HID) lighting systems in the medium and high bay
areas such as the water treatment plant, maintenance shops, school, etc., with T5 fluorescent fixtures.
HID lighting is often used in areas with high ceilings or roof structures. The fixtures generate high
luminous flux, are reasonably energy efficient, and are long lasting. Such systems often remain
illuminated continuously since the re-strike times make periodic switching in irregularly occupied spaces
a nuisance. Continuous operation of HID fixtures reduces the overall energy efficiency of lighting
systems designed around their use. Newer, high output fluorescent sources, characterized by quick warm-
up, with instant light output and improved efficiency, are now being used in place of many medium
wattage HID fixtures in low and high bay applications. Post-light levels will be nearly equal to that of the
existing lighting systems
E03 – Occupancy Sensors
Lighting systems are often left energized in unoccupied areas. This ECO proposes to install sensors to
shut off lighting in unoccupied spaces. Common sensing technologies include infrared, ultrasonic, and
audible sound, often combining multiple types of sensing in one unit to avoid shutting off lights in an
occupied area.
E04 – Premium Efficiency Motors
This ECO proposes installing National Electrical Manufacturers Association (NEMA) premium
efficiency motors to replace standard and high efficiency motors. There are various mechanical systems
operating with inefficient motors throughout the base. Premium efficiency motors typically increase
energy efficiency by 2-3%.
E05 – CFL Lighting Upgrade
This ECO proposes replacing current incandescent bulbs in audited village buildings with compact
fluorescent (CFL) lamps. This is a simple and effective retrofit with easy installation. Additional lamps
have been provided in calculations apart from the buildings specified in the matrix. Most city buildings
have incandescent fixtures and could be retrofit, such as the Lift Station and the dome-shaped building.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 29 Pilot Station, AK
44..11..44 MMeecchhaanniiccaall OOppppoorrttuunniittiieess
M01 – Boiler Tune-Up
This ECO proposes a comprehensive re-commissioning of the boilers in each building to optimize system
operations. Such efforts include:
Replace, repair, calibrate or install sensors or switches
Repair air linkages
Conduct combustion efficiency test services
Clean combustion chambers and stacks
M02 – Furnace Upgrade
This ECO proposes replacing existing fuel oil furnaces with more energy efficient units. Many of the
existing units in the village are original to the buildings they serve and have reached the end of their
useful service life. Furnaces employing modern technology can be installed to reduce energy
consumption, improve system operations, and reduce maintenance costs.
M03 – Unit Heater Upgrade
The current fuel oil burners are Modine model POR145B with a heating capacity of 145MBH each. More
efficient Reznor models have been chosen as the replacements.
M04 – Domestic Hot Water Heater Upgrade
This ECO proposes replacing existing electric or fuel oil tank-type water heaters with fuel oil
instantaneous Toyotomi OM-128 models. Standby losses will be eliminated, as there is no need to
continuously heat tanks of water until they are needed. Where electric water heaters are replaced,
additional savings will come from the cost of generating electricity.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 30 Pilot Station, AK
55..00 FFIINNAALL CCOOSSTTIINNGG AANNDD CCHHAANNGGEESS FFRROOMM IINNIITTIIAALL RREEPPOORRTTIINNGG
Due to the brief nature of these contracts and the high cost of travel to and from the villages, audits were
conducted a quickly and efficiently as possible. Once engineers have left the villages, communication is
strained at best, and gathering additional information is difficult. Because of this, assumptions must be
made during the initial ECO assessments and project cost estimates. Occasionally, Ameresco engineers
have found that previously identified projects have been externally funded from another source, but this
information usually comes too late in the process. As a result of all these factors, some previously
identified projects have been modified or abandoned. Final project costs and expected annual savings can
be found in Appendix A and Section 5.2.
55..11 CCHHAANNGGEESS FFRROOMM IINNIITTIIAALL RREEPPOORRTTIINNGG
B01 – Door Weather-stripping Upgrade
Installed as planned at the Garage/Maintenance Shop. This ECO was abandoned at the School and
Tutlgag Cablevision buildings during the construction phase due to lack of funding; material was not
purchased or installed at these buildings.
B02 – Thermal Insulation Upgrade
The thermal insulation upgrade was installed as planned in the Tutalgag Cablevision building. An
insulation upgrade was performed on the City Office building instead of the Garage/Maintenance Shop.
Upon further investigation, the Garage/Maintenance Shop was found to be unsuitable for an insulation
upgrade, so this ECO was redirected to the City Office building.
C01 – Programmable Thermostat Upgrade
Installed as planned in the ATCO building. The thermostats were not installed at the school due to
communication issues; construction occurred during the summer holiday, and Ameresco was unable to
make contact with a school maintenance representative. This ECO has been abandoned at the school. A
programmable thermostat was installed in the Police Station instead of the Water Treatment Plant due to
compatibility issues; the Water Treatment Plant requires a line voltage thermostat, but the model ordered
was low voltage. Because the building operates 24/7, however, there are no savings associated with this
ECO at the Police Station building.
E01 – T-8 Lighting Upgrade
Installed as planned in the Tutalgag Cablevision building as well as the Water Treatment Plant. T12 task
lighting was not retrofit in the Garage/Maintenance shop because this task lighting was found to be high
output (HO) during the construction phase. Typical T8 lighting fixtures are not a suitable replacement for
the existing fixtures. In this case, the fixtures were delivered but not installed.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 31 Pilot Station, AK
E02 – T-5 Lighting Upgrade
Installed as planned.
E03 – Occupancy Sensors
Installed as planned, though some quantities were transferred between buildings. See Appendix A for
details.
E04 – Premium Efficiency Motors Upgrade
This ECO has been abandoned due to lack of funding and limited availability of premium efficiency
motors.
E05 – CFL Lighting Upgrade
Installed as planned.
E06 – LED Street Lighting Upgrade
Newly added ECO. After the initial proposal was submitted, Ameresco and AVEC came to an agreement
on installing new street lighting fixtures. The village will need to work with AVEC to ensure that new
utility bills reflect the decreased energy usage.
M01 – Boiler Tune-Up
Performed as planned.
M02 – Furnace Upgrade
The furnace in the Police Station was upgraded instead of the ATCO Building. The replacement model
that was purchased fit the needs of the Police Station better than the ATCO Building, so the furnace in the
Police Station was upgraded instead.
M03 – Unit Heater Upgrade
This ECO has been abandoned due to lack of funding.
M04 – Domestic Water Heater Upgrade
Installed as planned.
Alaskan Village Post Installation Report Energy Audit of City Buildings
Ameresco VEEP Audit - City of Pilot Station
Page 32 Pilot Station, AK
55..22 FFUUNNDDIINNGG AALLLLOOCCAATTIIOONN SSUUMMMMAARRYY TTAABBLLEESS
VEEP ECOS - PROJECT COSTS & EXPECTED SAVINGS
ECO Cost Savings SPB
B01 - WEATHER-STRIPPING $5,959.33 $ 774.81 7.69
B02 - THERMAL INSULATION UPGRADE $17,545.23 $ 358.80 48.90
C01 - THERMOSTAT UPGRADE $1,905.46 $ 800.89 2.38
E01 - T8 LIGHTING UPGRADE $8,300.43 $ 120.36 68.96
E02 - T5 LIGHTING UPGRADE $4,043.10 $ 202.42 19.97
E03 - INSTALL OCCUPANCY SENSORS $7,324.39 $ 1,507.65 4.86
E05 - CFL UPGRADE $1,321.07 $ 237.69 5.56
E06 - STREETLIGHT UPGRADE $56,326.43 $ 5,522.76 10.20
M01 - BOILER TUNE-UP $7,700.13 $12,024.15 0.64
M02 - FURNACE UPGRADE $19,620.18 $ 189.94 103.30
M04 - DOMESTIC WATER HEATER UPGRADE $17,750.17 $ 538.75 32.95
AVAILABLE FUNDING $2,204.08
* Available funding allocated to Kotlik.
TOTAL $150,000.00 $22,278.22 6.63
ECOS NOT FUNDED - REJECTED IN CONSTRUCTION PHASE
ECO Cost Savings SPB
B01 - WEATHER-STRIPPING $ 6,000.00 $ 373.13 16.08
C01 - THERMOSTAT UPGRADE $ 2,100.00 $ 14,069.57 0.15
E04 - PREMIUM EFFICIENCY MOTORS UPGRADE $ 8,000.00 $ 253.11 31.61
M02 - FURNACE UPGRADE $ 15,260.00 $ 189.94 80.34
M03 - UNIT HEATER UPGRADE $ 21,000.00 $ 191.06 109.91
TOTAL $ 52,360.00 $ 15,076.81 3.47
*Note: C01 pricing would most likely increase from this initial projection as seen at the buildings the ECO was completed in.
APPENDIX A
VEEP PROJECT COSTS
& EXPECTED SAVINGS
B01 - WEATHER-STRIPPING
Building # of Doors
Price Per
Door Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
Garage/Maintenance 3
Varies w/Size $5,959.33 0.00 33.34 33.34 238.13 $0.00 $774.81 $774.81 7.69
B02 - THERMAL INSULATION UPGRADE
Building Current
Insulation
Proposed
Insulation Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
City Office R-22 R-40 $15,592.75 0.00 7.71 7.71 55.05 $0.00 $335.91 $335.91 46.42
Cable TV Building R-20 R-38 $1,952.48 0.00 0.98 0.98 7.04 $0.00 $22.89 $22.89 85.30
C01 - THERMOSTAT UPGRADE
Building
# of Thermo-
stats
Installed
Cost Per
Thermostat Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
ATCO Building 1 $952.73 $952.73 0.00 34.46 34.46 246.15 $0.00 $800.89 $800.89 1.19
Police Station* 1 $952.73 $952.73 N/A N/A N/A N/A N/A N/A N/A N/A
E01 - T8 LIGHTING UPGRADE
Building # of Fixtures
Price Per
Fixture Total Cost
Electric
kWh
Savings
Electric
kW
Savings
Equivalen
t mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
Garage/Maintenance 7 $415.02 $2,905.15 N/A N/A N/A N/A N/A N/A N/A N/A
Tutlgag Cablevision 2 $415.02 $830.04 22.42 0.53 0.08 1.63 $4.83 $5.29 $10.12 171.94
Water Treatment 11 $415.02 $4,565.23 536.61 8.42 1.83 38.94 $115.53 $126.70 $242.23 39.51
E02 - T5 LIGHTING UPGRADE
Building # of Fixtures
Price Per
Fixture Total Cost
Electric
kWh
Savings
Electric
kW
Savings
Equivalen
t mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
Garage/Maintenance 4 $1,010.78 $4,043.10 940.16 5.42 3.21 68.23 $202.42 $204.48 $406.89 19.97
E03 - INSTALL OCCUPANCY SENSORS
Building # of Fixtures
Price Per
Fixture Total Cost
Electric
kWh
Savings
Electric
kW
Savings
Equivalen
t mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
ATCO Building 8 $292.98 $2,343.80 438.02 0.00 1.49 31.79 $94.31 $103.42 $98.86 24.85
City Office 13 $292.98 $3,808.68 4,827.61 0.00 16.48 350.33 $1,039.38 $1,139.88 $2,849.81 3.66
Garage/Maintenance 1 $292.98 $292.98 655.20 0.00 2.24 47.55 $141.06 $141.06 $282.13 2.08
Tutalgag Cablevision 1 $292.98 $292.98 57.66 0.00 0.20 4.18 $12.41 $13.61 $26.03 23.60
Water Treatment 2 $292.98 $585.95 1,024.08 0.00 3.50 74.32 $220.48 $241.80 $462.29 2.66
APPENDIX A - VEEP PROJECT COSTS & EXPECTED SAVINGS - PILOT STATION
Note: The reported simple paybacks are based on the type of ECO listed. For example, electrical ECOs only use the Annual kWh Cost Savings column to calculate
the SPB, even though the Annual Equivalent Fuel Cost Savings is still reported.
E05 - CFL LIGHTING UPGRADE
Building
# of Incans
to be
Replaced
Wattages to
be Replaced Total Cost
Electric
kWh
Savings
Electric
kW
Savings
Equivalen
t mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
Scattered 40 75, 100 $1,321.07 1,104.00 16.56 3.77 80.12 $237.69 $260.67 $498.36 5.56
E06 - LED STREET LIGHTING UPGRADE - QTY 53
Building Existing
Fixture
Retrofit
Fixture Total Cost
Electric
kWh
Savings
Electric
kW
Savings
Equivalen
t mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
Whole Village 150W HPS 47W LED $56,326.43 25,651.47 70.28 87.55 1,861.50 $5,522.76 $6,057.32 $11,580.08 10.20
M01 - BOILER TUNE-UP
Building Number of
Boilers
Increase in
Efficiency Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
School 2 ~3%$3,850.06 0.00 528.92 528.92 3,777.98 $0.00 $11,322.79 $11,322.79 0.34
Water Treatment 2 ~1%$3,850.06 0.00 30.18 30.18 215.56 $0.00 $701.36 $701.36 5.49
M02 - FURNACE UPGRADE
Building
# of
Furnaces to
Replace
New Furnace
Efficiency
(AFUE)
Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
Police Station 1 85.00%$19,620.18 0.00 8.17 8.17 58.38 $0.00 $189.94 $189.94 103.30
M04 - DOMESTIC WATER HEATER UPGRADE
Building
# of Water
Heaters to
Replace
New Water
Heater
Efficiency
(AFUE)
Total Cost
Electric
kWh
Savings
Equivalen
t Fuel
mmBtu
Savings
New Fuel
mmBtu
Use
Equivalent
Fuel
Gallons
Savings
Annual
kWh Cost
Savings
Annual
Equivalent
Fuel Cost
Savings
Total
Annual
Savings
Simple
Payback
Water Treatment 1 88.00%$17,750.17 3,475.33 11.86 12.13 165.58 $0.00 $538.75 $538.75 32.95
APPENDIX B
ECO CALCULATION
RESULTS – NOT
FUNDED
B01 - WEATHER-STRIPPING
Building # of Doors
Price Per
Door Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual kWh
Cost Savings
Annual
Equivalent
Fuel Cost
Savings
Simple
Payback
School 6
Varies w/Size $5,000.00 0.00 13.82 13.82 98.71 $0.00 $321.19 15.57
Tutlgag Cablevision 1
Varies w/Size $1,000.00 0.00 2.23 2.23 15.96 $0.00 $51.94 19.25
C01 - THERMOSTAT UPGRADE
Building
# of
Thermo-
stats
Installed
Cost Per
Thermostat Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual kWh
Cost Savings
Annual
Equivalent
Fuel Cost
Savings
Simple
Payback
School 2 $290.00 $1,200.00 0.00 521.22 521.22 3,722.99 $0.00 $12,113.50 0.10
Water Treatment 1 $290.00 $900.00 0.00 84.17 84.17 601.18 $0.00 $1,956.08 0.46
E04 - PREMIUM EFFICIENCY MOTORS UPGRADE
Building # of Motors
Price Per
Motor Total Cost
Electric
kWh
Savings
Electric
kW
Savings
Equivalent
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual kWh
Cost Savings
Annual
Equivalent
Fuel Cost
Savings
Simple
Payback
Water Treatment 6 Varies w/HP $8,000.00 1,175.60 0.42 4.01 85.31 $253.11 $277.58 31.61
M02 - FURNACE UPGRADE
Building
# of
Furnaces to
Replace
New Furnace
Efficiency
(AFUE)
Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual kWh
Cost Savings
Annual
Equivalent
Fuel Cost
Savings
Simple
Payback
ATCO Building 1 85.00%$15,260.00 0.00 8.17 8.17 58.38 $0.00 $189.94 80.34
M03 - UNIT HEATER UPGRADE
Building
# of
Heaters to
Replace
Heater Price Total Cost
Electric
kWh
Savings
Fuel
mmBtu
Savings
Total
mmBtu
Savings
Equivalent
Fuel
Gallons
Savings
Annual kWh
Cost Savings
Annual
Equivalent
Fuel Cost
Savings
Simple
Payback
Garage/Maintenance 2 $7,500.00 $21,000.00 0.00 8.22 8.22 58.72 $0.00 $191.06 109.91
APPENDIX B - ECO CALCULATION RESULTS - NOT FUNDED - PILOT STATION
Note: The reported simple paybacks are based on the type of ECO listed. For example, electrical ECOs only use the Annual kWh Cost Savings column to
calculate the SPB, even though the Annual Equivalent Fuel Cost Savings is still reported.
APPENDIX C
EQUATIONS USED IN
CALCULATIONS
ECO Equations
B01 1. Door Leakage Area (in2) = Door Area x Door Leakage Factor
2. Specific Infiltration (CFM/in2) = [ (Stack Coefficient x ∆T) + (Wind Coefficient x [Wind Speed]2 )]1/2
3. ∆T = Heating Setpoint Temp - Bin Temp
4. Air Infiltration (CFM) = Specific Infiltration x Door Leakage Area
5. Heat Loss Rate (Btu/hr) = 1.08 x Air Infiltration x ∆T
6. Heating Load (mmBtu) = Heat Loss Rate x Bin Hours / 1,000,000
7. Energy Savings = Baseline - Proposed
Note: This ECO was completed using the RETscreen program.
B02 Note: This ECO was completed using the RETscreen program.
Inputs are R-values reported in the appendices as well as the insulation square footage
C01 Note: This ECO is based on bin data, occupancy, heating peak loads, boiler efficiency, and an assumed night setback
Baseline Usage = (Peak Load x Occupied Load Profile x All Hours) / Boiler Eff.
ECM Usage = [(Peak Load x Occupied Load Profile x Occupied Hours)
+ (Peak Load x Unoccupied Load Profile x Unoccupied Hours)] / Boiler Eff
mmBtu Saved = Baseline Usage - ECM Usage
E01 1. Baseline Demand (kW) = (Existing Fixture Wattage) x (Qty) X (12 Months) / (1,000)
2. Baseline Usage (kWh) = (Baseline Demand) x (Fixture Hours)
3. Proposed Demand (kW) = (Proposed Fixture Wattage) x (Qty) X (12 Months) / (1,000)
4. Proposed Usage (kWh) = (Proposed Demand) x (Fixture Hours)
5. Annual Energy Savings = (Baseline Energy Usage) - (Proposed Energy Usage)
6. Annual Cost Savings = (Energy Savings) x (Energy Cost)
E02 1. Baseline Demand (kW) = (Existing Fixture Wattage) x (Qty) X (12 Months) / (1,000)
2. Baseline Usage (kWh) = (Baseline Demand) x (Fixture Hours)
3. Proposed Demand (kW) = (Proposed Fixture Wattage) x (Qty) X (12 Months) / (1,000)
4. Proposed Usage (kWh) = (Proposed Demand) x (Fixture Hours)
5. Annual Energy Savings = (Baseline Energy Usage) - (Proposed Energy Usage)
6. Annual Cost Savings = (Energy Savings) x (Energy Cost)
E03 1. Baseline Usage (kWh) = (Existing Fixture Wattage) x (Qty) x (Existing Hours) / (1,000)
2. Proposed Usage (kWh) = (Existing Fixture Wattage) x (Qty) x [(Existing Hours) - (Hours Reduced)] / (1,000)
3. Annual Energy Savings = (Baseline Energy Usage) - (Proposed Energy Usage)
4. Annual Cost Savings = (Energy Savings) x (Energy Cost)
E04 1. Existing/Proposed Motor Demand (kW) = (Motor HP) x (Load Factor) x (0.746 kW/HP)/ Motor Efficiency
2. Existing/Proposed Motor Consumption (kWh) = (Motor Demand) x (Diversity Factor) x (Annual Hours)
3. kW Savings = [(Baseline kW) - ( Proposed kW)] x (12 Months)
4. kWh Savings = (Baseline kWh) - ( Proposed kWh)
5. Energy Cost Savings = Energy Savings (kW or kWh) x (Energy Unit Cost)
E05 1. Baseline Demand (kW) = (Existing Fixture Wattage) x (Qty) X (12 Months) / (1,000)
2. Baseline Usage (kWh) = (Baseline Demand) x (Fixture Hours)
3. Proposed Demand (kW) = (Proposed Fixture Wattage) x (Qty) X (12 Months) / (1,000)
4. Proposed Usage (kWh) = (Proposed Demand) x (Fixture Hours)
5. Annual Energy Savings = (Baseline Energy Usage) - (Proposed Energy Usage)
6. Annual Cost Savings = (Energy Savings) x (Energy Cost)
E06 1. Baseline Demand (kW) = (Existing Fixture Wattage) x (Qty) X (12 Months) / (1,000)
2. Baseline Usage (kWh) = (Baseline Demand) x (Fixture Hours)
3. Proposed Demand (kW) = (Proposed Fixture Wattage) x (Qty) X (12 Months) / (1,000)
4. Proposed Usage (kWh) = (Proposed Demand) x (Fixture Hours)
5. Annual Energy Savings = (Baseline Energy Usage) - (Proposed Energy Usage)
6. Annual Cost Savings = (Energy Savings) x (Energy Cost)
M01 Savings (MBtu) = (Boiler Input Rating) x ((1/Tested Efficiency)-(1/Desired Efficiency)) x (Hours per Year
Savings ($) = (MBtu Savings) x (Energy Cost)
M02 1. Heat Loss Rate (mmBtu/hr) = MBLC x (Heating Temp Setpoint - Mean Bin Temp)
2. Heat Load (MBH) = Heat Loss Rate x 1000
3. MBH-hr = Heat Load x Bin Heating Hours / (kW/ton)
4. Fuel Used (mmBtu) =[(MBH-hr) / Efficiency] / 1000
5. mmBtu Saved = (mmBtu)Existing - (mmBtu)Proposed
M03 Note: This ECO is based on bin data, occupancy, heating peak loads, heater efficiency, and an assumed night setback
Baseline Usage = (Peak Load x Occupied Load Profile x All Hours) / (Old Heater Efficiency)
ECM Usage = (Peak Load x Occupied Load Profile x All Hours) / (New Heater Efficiency)
mmBtu Saved = Baseline Usage - ECM Usage
M04 1. Annual Energy Usage (mmBtu) = (41,045 Btu/Day) x (Total Days/Yr) x (Total Heaters) / (Energy Factor or Thermal Efficiency
2. Annual Energy Usage (kWh) = (12.03 kWh/Day) x (Total Days/Yr) x (Total Heaters) / (Energy Factor or Thermal Efficiency
3. (Commercial Type Heaters) Annual Standby Losses (mmBtu) = (Btu/Hr) x (24 Hrs/Day) x (Total Days/Yr) x (Total Heaters) / (1,000,000
4. (Electric Type Heaters) Annual kW Use = System kW x 12
5. (Commercial Type Heaters) Total Annual Energy Usage (mmBtu) = Annual Energy Usage + Annual Standby Losses
6. Annual Savings = Baseline Conditions - Proposed Conditions
APPENDIX C - EQUATIONS USED IN CALCULATIONS - PILOT STATION
From the Energy Management Handbook, Turner, 4th Edition Table 13.8 p361
Savings from installing occupancy sensors are as follows
Offices (Private) 25-50%
Offices (Open Spaces)20-25%
Rest Rooms 30-75%
Corridors 30-40%
Storage Areas 45-65%
Meeting Rooms 45-65%
Conference Rooms 45-65%
Warehouses 50-75%
FOR E04
Load factor assumed to be 80% except in some cases. Vacuum pumps assumed 100% load factor.
Diversity factor assumed to be 95%.
Building
Characteristics
Space
Heat Cool Ventilation
Education 32.8 4.8 1.6
Food sales 27.5 13.4 4.4
Food service 30.9 19.5 5.3
Health care 55.2 9.9 7.2
Lodging 22.7 8.1 1.7
Mercantile and service 30.6 5.8 2.5
Office 24.3 9.1 5.2
Public assembly 53.6 6.3 3.5
Public order and safety 27.8 6.1 2.3
Religious worship 23.7 1.9 0.9
Storage/Warehouse 15.7 0.9 0.3
Vacant 11.9 0.6 0.3
Energy End-Use (1,000 Btu/ft2-yr)
FOR E03 - Hours Reduced
Tables 2A and 2B - 1995 Commercial Building Energy Consumption
2003 ASHRAE Applications Handbook, Chapter 35
APPENDIX D
POST INSTALLATION
PHOTOS
APPENDIX D – POST INSTALLATION PHOTOS – PILOT STATION
Completed Domestic Water Heater Upgrade Completed Insulation Upgrade – Tutalgag Cablevision
New Street Light Installation Furnace Upgrade – Police Department