HomeMy WebLinkAboutCIRI-SXQ-CAEC Soldotna Fire Station 2012-EEFINAL ENERGY AUDIT
Soldotna Fire Station
231 S. Binkley Street
Soldotna, AK 99669
ATTN: Kevin Lyon
Submitted by: Prime Contract:
April 16, 2012
Wisdom and
Associates, Inc.
Contact: Robert Moss, CEA
130 Trading Bay, #320
Kenai, AK 99611
Phone (907) 283-0629
Robert@akinspections.com
Contact: Jerry P. Herring, P.E., C.E.A.
32215 Lakefront Drive
Soldotna, Alaska 99669
Phone (907) 260-5311
akengineer@starband.net
Energy Audit Report
April 16, 2012
pg. 2
Table of Contents
Introduction 4
Executive Summary 6
Methods of Analysis 8
Audit/Building Overview 9
Energy Conservation Measures 10
Operations and Maintenance 19
Benchmark Information 20
Supporting Documentation 28
Equipment Inventory
Benchmark Data
ECM Calculations
Cost Data
Energy Audit Report
April 16, 2012
pg. 3
REPORT DISCLAIMER
This energy audit is intended to identify and recommend potential areas of energy savings,
estimate the value of the savings and approximate the costs to implement the
recommendations. Any modifications or changes made to a building to realize the savings must
be designed and implemented by licensed, experienced professionals in their fields. Lighting
recommendations should all be first analyzed through a thorough lighting analysis to assure that
the recommended lighting upgrades will comply with State of Alaska Statue and well as
Illuminating Engineering Society (IES) recommendations. Wisdom and Associates, Inc. and
Central Alaska Engineering Company bear no responsibility for work performed as a result of
this report.
Payback periods may vary from those forecasted due to the uncertainty of the final installed
design, configuration, equipment selected, and installation costs of recommended Energy
Conservation Measures (ECMs), or the operating schedules and maintenance provided by the
owner. Furthermore, ECMs are typically interactive, so implementation of one ECM may
impact the cost savings from another ECM. Wisdom and Associates, Inc. and Central Alaska
Engineering Company accept no liability for financial loss due to ECMs that fail to meet the
forecasted payback periods.
This audit meets the criteria of a Level 2 Investment Grade Audit (IGA) per the American
Society of Heating, Refrigeration, Air-conditioning Engineers (ASHRAE) and the Association of
Energy Engineers (AEE), and is valid for one year. The life of the IGA may be extended on a
case-by-case basis, at the discretion of AHFC.
IGA’s are the property of the State of Alaska, and may be incorporated into AkWarm-C, the
Alaska Retrofit Information System (ARIS), or other state and/or public information
systems. AkWarm-C is a building energy modeling software developed under contract by
AHFC.
This material is based upon work supported by the Department of Energy under Award Number
DE-EE0000095. This report was prepared as an account of work sponsored by an agency of the
United States Government. Neither the United States Government nor any agency thereof, nor
any of their employees, makes any warranty, express or implied, or assumes any legal li ability 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.
Energy Audit Report
April 16, 2012
pg. 4
Introduction
This report is a comprehensive energy study, which included an analysis of major energy
consuming components of the building. The scope of the audit focused on the Soldotna Fire
Station as part of a contract for:
Alaska Housing Finance Corporation Kenai Peninsula Borough
Contact: Rebekah Luhrs Contact: Kevin Lyon
4300 Boniface Parkway 144 N. Binkley Street
Anchorage, AK 99510 Soldotna, AK 99669
Email: rluhrs@ahfc.us Email: klyon@borough.kenai.ak.us
This audit was performed using ARRA funds to promote the use of innovation and technology to
solve energy and environmental problems in a way that improves the State’s economy. This can
be achieved through the wiser and more efficient use of energy. Opportunities for application of
these energy saving methods are discussed in detail throughout this report.
The average annual energy costs at this facility are as follows:
Electricity $29,034.00
Natural Gas $8061.00
Total $37,095.00
Energy Audit Report
April 16, 2012
pg. 5
The potential annual energy cost savings for each energy conservation measure are summarized
in the executive summary along with a more detailed description in the energy conservation
measures section. All calculations are available in the support documentation. This audit is
consistent with an ASHRAE Level 2 audit. The evaluations are based on estimations and
industry standard calculation methods. The cost of each measure for this level of auditing is +
30% until detailed engineering, specifications, and hard proposals are obtained. More detailed
analyses would require engineering simulation models, hard equipment specifications, and
contractor bid pricing.
The comprehensive energy audit covers the 11,640 square foot Fire Station.
Utility information was collected and analyzed for 2 full year’s energy use of the building. The
utility information allows us to analyze the building’s operational characteristics and calculate
energy benchmarks for comparison to industry averages. A computer spreadsheet was used to
calculate benchmarks and to graph utility information (see the Benchmarking section).
An Energy Use Index (EUI) was established for the building. Energy Use Index (EUI) is
expressed in British Thermal Units/square foot/year (BTU/ft2/yr), which is used to compare
energy consumption to similar building types or to track consumption from year to year in the
same building. The EUI is calculated by converting the annual consumption of all energy sources
to BTU’s and dividing by the area (gross square footage) of the building. Blueprints and
drawings are utilized to verify the gross area of the facility. The EUI can be a good indicator of
the relative potential for energy savings. A low EUI indicates less potential for energy savings,
while a high EUI indicates poor building performance, therefore, a high potential for energy
savings.
The site survey provided information for interpreting where energy was spent and finding energy
savings opportunities within the facility. The building site visit was performed to survey all
major building components and systems. The site visit included an inspection of energy
consuming components.
Energy Audit Report
April 16, 2012
pg. 6
Executive Summary
The executive summary provides a snapshot of estimated improvement costs, Net Present Value
savings, breakeven costs and savings to investment ratios.
Energy Conservation Measures Recommendation Table
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
ROI
1
Install timer on interior block heater
circuits to limit time on to 30 minutes per
hour.
$3,186 $5,914 $94,617 $97,803 29.7 1 2970%
2 Replace existing incandescent lamps with
18w compact fluorescent lamps.$117 $144 $2,307 $2,424 19.6 1 1964%
3
Install timer on exterior block heater
circuits to limit time on to 30 minutes per
hour.
$3,186 $2,509 $40,151 $43,337 12.6 2 1260%
4
Replace existing 4' 4 lamp T12 fixtures
with 4 lamp T8 fixtures with 25w lamps
and electronic ballasts.
$23,589 $1,834 $29,352 $52,941 1.2 8 124%
5 Replace all heating systems with 2 - 95%
AFUE Boilers.$59,325 $2,134 $48,427 $107,752 0.8 12 82%
6
Replace existing 4' 2 lamp T12 fixtures
with 2 lamp T8 fixtures with 25w lamps
and electronic ballasts.
$27,664 $1,326 $21,214 $48,878 0.8 10 77%
Total, Cost Effective Measures $117,067 $13,861 $236,068 $353,135 2.0 -202%
7 Replace existing doors with doors having
a U-value of 0.16 or less.$5,066 ($97)($1,935)$3,131 -0.4 27 -38%
8 Replace existing windows with windows
having a U-value of 0.3 or less.$4,616 ($172)($3,446)$1,170 -0.7 >30 -75%
Total, All Measures $126,748 $13,592 $230,687 $357,435 1.8 -182%
Energy Audit Report
April 16, 2012
pg. 7
The ECM# is the priority ranking of an Energy Conservation Measure.
The Installed Cost is the full upfront cost expected for the improvement.
The Annualized NPV Savings reflects the annualized Net Present Value savings over the life of
the improvement, adjusted for general inflation, fuel price escalation, maintenance, discount rate
and installed cost.
The NPV Savings Over Improvement Life reflects the Net Present Value of cumulative savings
over the life of the improvement, adjusted for general inflation, fuel price escalation,
maintenance, discount rate and installed cost.
The Breakeven Cost is the maximum cost in today’s dollars that could be spent on an
improvement and still be cost effective.
The Savings to Investment Ratio (SIR) is a life-cycle cost measure calculated by dividing the
total savings over the life of a project (expressed in today’s dollars) by its investment costs. The
SIR is an indication of the profitability of a measure; the higher the SIR, the more profitable the
project. An SIR greater than 0 indicates a cost-effective project (i.e. more savings than cost).
The Simple Payback listed for each ECM is the number of years required to break even on the
investment, adjusted for general inflation, fuel price escalation, maintenance, discount rate and
installed cost.
The Return on Investment (ROI) listed for each ECM is the net savings of the energy
conservation measure divided by the installed cost listed.
The total savings listed for cost effective measures and all measures are for estimation purposes
only and cannot be considered 100% accurate because of the interrelation of the ECMs.
Energy Audit Report
April 16, 2012
pg. 8
Method of Analysis
Post site visit work included an evaluation of the information gathered, researching possible
conservation opportunities, organizing the audit into a comprehensive report, and making
recommendations on HVAC, lighting, and building envelope improvements. Collected data was
processed using Microsoft Excel spreadsheets and ASHRAE energy calculations to anticipate
energy usage for each of the proposed energy conservation measures (ECMs). The actual
building energy usage was entered directly from the utility bills provided. The anticipated energy
usage was compared to the historical data to determine energy savings for the proposed ECMs.
It is important to note that the savings represented in this report should not be considered
additive because of the interrelation of energy conservation measures. Implementation of more
than one ECM often affects the savings of other ECMs.
ECMs were determined by identifying the building’s unique properties and finding the most
beneficial energy saving measures available that met the specific needs of the facility. The
building construction type, function, operational schedule, existing conditions, and foreseen
future plans were accounted for in the evaluation and final recommendations. Energy savings are
calculated based on industry standard methods and estimations. Energy consumption is
calculated based on manufacturer’s information when new equipment is proposed.
Cost savings are calculated based on the actual historical energy costs for the facility. Installation
costs include materials and labor costs to estimate the full up-front investment required.
Measures were analyzed based on life-cycle-cost techniques, which include the initial cost of the
improvement, expected life of the improvement, annual energy cost, annual maintenance cost,
and a discount rate of 3.0%/year. Energy cost escalation rates are taken from the current Energy
Price Indices and Discount Factors for Life-Cycle Cost Analysis from the US Department of
Commerce. Maintenance costs are estimated at 2% of fuel cost related to an improvement unless
otherwise noted. Expected life of improvements is taken from industry and government sources.
Future savings are discounted to the present to account for the time-value of money (i.e. money’s
ability to earn interest over time).
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. The design professional or other persons
following the recommendations shall accept responsibility and liability for the results.
Energy Audit Report
April 16, 2012
pg. 9
Audit Overview/Building Description
Soldotna Fire Station is an 11,640 square foot continuously manned fire station. The original
portion of the building was reportedly built in 1957. The newer part of this building was built in
1983. It is served by 2 separate heating systems and 1 combination heating and cooling system.
The building is typically occupied by 4 people on a 24/7 basis. Regular office hours for the rest
of the staff are 8 am to 5 pm on weekdays.
Energy costs associated with this building are high, especially electricity. This type of building
has unique usage patterns that cause higher than normal energy consumption than buildings of
similar size. The use of engine block heaters on a year-round basis for emergency equipment
causes high electrical usage. Operation of the overhead doors causes increased amounts of heated
air to escape which results in high natural gas consumption.
Energy Audit Report
April 16, 2012
pg. 10
Energy Conservation Measures
Energy conservation measures are those measures which are considered as having the potential
to be cost effective and appropriate energy improvement options for the building. Estimated
costs are taken from the current Craftsman National Estimator and are adjusted for zip code.
Different rates and averages can be applied to this report if requested.
Lighting and electrical improvements are based on usage estimates apparent at the time of the
audit and may not reflect actual usage or occupant behavior. Before committing to a complete
lighting retrofit, it is recommended that a small sample of the new lamps you intend to use be
installed and tested for a time before pursuing all of the recommended changes. Light output,
color rendition, color temperature and personal preference all play a part in a satisfactory lighting
retrofit. The benefit of reduced energy consumption is lost if fixtures have to be re-lamped after
the retrofit or people are not comfortable with a new lighting scheme.
The Return on Investment (ROI) listed for each ECM is the net savings of the energy
conservation measure divided by the installed cost listed. The simple payback listed for each
ECM is the number of years required to break even on the investment, given annual energy cost,
annual maintenance cost, and discount rate.
Energy Audit Report
April 16, 2012
pg. 11
Adjustments may be needed to maintain proper engine temperature with the on/off cycle.
Intermatic ET70815CR Time Switch or similar may work in this application. The lifetime ROI
for this investment is 2970%. This ECM assumes a life expectancy of 16 years for this measure.
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
1
Install timer on interior block heater
circuits to limit time on to 30 minutes per
hour.
$3,186 $5,914 $94,617 $97,803 29.7 1
Energy Audit Report
April 16, 2012
pg. 12
The lifetime ROI for this investment is 1964%. This ECM assumes a life expectancy of 16 years
for this measure.
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
2 Replace existing incandescent lamps with
18w compact fluorescent lamps.$117 $144 $2,307 $2,424 19.6 1
Energy Audit Report
April 16, 2012
pg. 13
Adjustments may be needed to maintain proper engine temperature with the on/off cycle.
Intermatic ET70815CR Time Switch or similar may work in this application. The lifetime ROI
for this investment is 1260%. This ECM assumes a life expectancy of 16 years for this measure.
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
3
Install timer on exterior block heater
circuits to limit time on to 30 minutes per
hour.
$3,186 $2,509 $40,151 $43,337 12.6 2
Energy Audit Report
April 16, 2012
pg. 14
The lifetime ROI for this investment is 124%. This ECM assumes a life expectancy of 16 years
for this measure.
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
ROI
4
Replace existing 4' 4 lamp T12 fixtures
with 4 lamp T8 fixtures with 25w lamps
and electronic ballasts.
$23,589 $1,834 $29,352 $52,941 1.2 8 124%
Energy Audit Report
April 16, 2012
pg. 15
Replace existing boiler and infrared heaters with 2 - 95% AFUE condensing boilers with
programmable set back and hot water controls. Boiler should be equipped with outdoor reset and
average indoor temperature lowered 5 degrees through setback programming. Install hydronic
fan coils to replace infrared heaters. This estimate assumes existing heating systems will be
replaced in the next 20 years and has included the annualized cost of such a replacement. The
lifetime ROI for this investment is 82%. This ECM assumes a life expectancy of 20 years for
this measure.
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
ROI
5 Replace all heating systems with 2 - 95%
AFUE Boilers.$59,325 $2,134 $48,427 $107,752 0.8 12 82%
Energy Audit Report
April 16, 2012
pg. 16
This ECM assumes a life expectancy of 16 years for this measure.
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
ROI
6
Replace existing 4' 2 lamp T12 fixtures
with 2 lamp T8 fixtures with 25w lamps
and electronic ballasts.
$27,664 $1,326 $21,214 $48,878 0.8 10 77%
Energy Audit Report
April 16, 2012
pg. 17
The lifetime ROI for this investment is -38%. This ECM assumes a life expectancy of 20 years
for this measure.
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
7 Replace existing doors with doors having
a U-value of 0.16 or less.$5,066 ($97)($1,935)$3,131 -0.4 27
Energy Audit Report
April 16, 2012
pg. 18
The lifetime ROI for this investment is -75%. This ECM assumes a life expectancy of 20 years
for this measure.
ECM #Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
8 Replace existing windows with windows
having a U-value of 0.3 or less.$4,616 ($172)($3,446)$1,170 -0.7 >30
Energy Audit Report
April 16, 2012
pg. 19
Operations and Maintenance Measures
Staff Training – Visit www.energystar.gov for free training materials and courses on energy
conservation and awareness for building staff. Live web conferences, animated presentations and
pre-recorded trainings are just some of the tools available. Creating an inclusive strategy that
establishes roles and actions throughout the organization can help to integrate good energy
management practices. When developing an action plan, consider brainstorming with various
departments to identify ways they can contribute.
Portfolio Manager – Consider utilizing EPA’s Portfolio Manager, which is an online system that
allows building personnel to track building performance and improve energy efficiency across
multiple buildings. You can also contact your energy auditor for additional information about
this program. See www.energystar.gov
After Hours – The building manager/operator should be tasked with turning off all non-essential
equipment at night, on weekends, or during other non-occupied times. Power strips can be turned
off during off hours; also power strips can be connected to timers or occupancy sensors. Smart
power strips with built-in occupancy sensors or activity sensors are available.
Plug Loads – Plug loads use up to an estimated 20% of electrical energy in commercial
buildings. Most plugged in devices consume energy even when off. Power is drawn by devices
in passive standby, such as a computer in “sleep” mode or a clock on a microwave, and active
standby such as when a screen saver is on a computer screen or television screen. The majority
of plug loads come from office equipment (computers, printers, copiers, etc.) and appliances
(refrigerators, coffee machines, etc.). As equipment deteriorates or is scheduled for replacement,
it is recommended that it be replaced with EnergyStar certified equipment.
Refrigeration – Most refrigerators, freezers, ice makers and other types of cooling equipment can
benefit from cleaning the evaporator coils. This should be done on a yearly basis to reduce
electrical costs.
Demand Charges – Electrical demand charges are a result of peak KW electrical demand from
the building during a 15 minute period each month. Demand charges make up on average 10.5%
of the electrical bill, which could be further reduced by staggering the times at which the engine
block heater circuits are energized. By staggering the circuit timing the peak KW draw can be
reduced substantially. The amount of reduction in demand charge will depend on how the
circuits are programmed.
Energy Audit Report
April 16, 2012
pg. 20
Benchmark Information
Benchmarking and analysis of the utility bills was used to collect data about the building in terms
of energy usage patterns, consumption, and comparison with similar buildings. Benchmarking
was used to identify energy usage patterns and trends that showed a need for specific
investigation of certain systems. Benchmarking also identified potential issues in how the
building is operated which may lead to energy savings. Analysis of utility data provides a context
for the audit.
The BTU usage of the building per square foot is well above the benchmark of the national
average of similar buildings. Part of this is due to the harsh climate in Alaska, which emphasizes
the need for improvements in the heating system.
Energy Audit Report
April 16, 2012
pg. 21
Electrical usage in terms of BTU per square foot is only slightly higher than the national benchmark for
similar buildings. However, great electrical consumption opportunities still exist within this building.
Energy Audit Report
April 16, 2012
pg. 22
The natural gas consumption of this building is above the national average. This is in part due to Alaska’s
harsh climate and in part due to the operation of the overhead doors which are a large source of heat loss
when open.
Energy Audit Report
April 16, 2012
pg. 23
The total energy use profile shows the majority of BTUs consumed by the building are from natural gas
which is used exclusively for heating. Electrical usage is second.
Energy Audit Report
April 16, 2012
pg. 24
The energy cost total shows electricity being the majority fuel cost. Electricity is much more expensive
per BTU than natural gas. This emphasizes the need to reduce electrical consumption.
Energy Audit Report
April 16, 2012
pg. 25
Electrical consumption tracks with Heating Degree Days, which are a measure of the heating load
imposed by the climate. This matches with increased electrical use in the winter months due to more
vehicle plug-ins and increased lighting demand.
Energy Audit Report
April 16, 2012
pg. 26
Natural gas consumption matches very closely with Heating Degree Days, which is to be expected from
normal heating system operation.
Energy Audit Report
April 16, 2012
pg. 27
The Load Factor is the ratio of the average load in kilowatts supplied during a designated period
to the peak or maximum load in kilowatts occurring in that period (usually a month). The Load
Factor takes into account spikes in demand which in turn may cause rate hikes depending on the
rate structure of a particular utility. The lower the load factor, the greater the spikes in demand
and the resulting penalties in demand charges. The average load factor for this building is 0.53.
The percent of the electrical bill caused by demand charges is 10.5%. The amount of electrical
demand from this building is not out of line. However, timing the block heater controls out of
sync will lower the demand charge.
Energy Audit Report
April 16, 2012
pg. 28
Supporting Documentation
This section contains all of the supporting documentation for the audit, which may include all
calculations, assumptions, and worksheets used to generate conclusions.
Equipment Inventory
Designation Location Function Make Model Type Capacity Efficiency Motor
Size Notes Median
Service Life
Est. Remaining
Useful Life
HVAC Unit Rooftop Heat/AC Lennox GCS9-461-
120A-1P Gas/Elec.
120,000
BTU/h -
2.3 Tons
78.7%/9.1
5 SEER
Serves Original
Building 20 10
Hydronic
Boiler
2nd Story
Utility Heat/DHW Weil McLain CGM-8 Gas 245,000
BTU/h 80.0%20 0
Air
Compressor Shop Compressed Air Emglo N/A Electric 3hp 15 0
Gas
Compressor Gas Room Medical Gas
Compression Mako BAM 07H
Gas
Compressor Gas Room Medical Gas
Compression Mako M3103 3hp
Infrared
Heaters Garage Bays Heat Co-Ray-Vac A8 Gas 80,000
BTU/h 80%
4 identical units
served by a single
inducer
20 0
Ventilator Garage Bays Evacuate CO Pace N/A Exhaust 5hp
Commercial
Clothes
Washer
Laundry Area Wash Fire Clothing Milnor 30022T5X 9.0 Cu Feet
Energy Audit Report
April 16, 2012
pg. 29
Benchmark Data
Building Designation:Electric Meter #Square footage of conditioned area:11640Gas Meter #Number of billing periods24Year:MonthDays in Billing PeriodElectric KWHElectric Demand KWElectric Cost $/KWHElectric CostDemand CostElectric MMBtu Load Factor% of bill from demandGas Usage ThermsGas Cost $Gas Unit Cost $/ThermGas MMBtuJan-093219,04047.72$0.23$4,308.00$342.0064.980.527.9%1,746 $1,825.00$1.05174.60Feb-093114,60035.08$0.23$3,317.00$251.0049.830.567.6%1,386 $1,443.00$1.04138.60Mar-092912,64036.00$0.23$2,968.00$255.0043.140.508.6%1,117 $1,165.00$1.04111.70Apr-093213,44035.00$0.19$2,580.00$254.0045.870.509.8%959 $1,002.00$1.0495.90May-093010,64035.00$0.20$2,179.00$254.0036.310.4211.7%363 $387.00$1.0736.30Jun-092911,72028.00$0.19$2,232.00$203.0040.000.609.1%343 $366.00$1.0734.30Jul-093111,88029.00$0.19$2,290.00$204.0040.550.558.9%209 $228.00$1.0920.90Aug-093011,64027.00$0.19$2,222.00$187.0039.730.608.4%239 $259.00$1.0823.90Sep-093412,72031.00$0.19$2,434.00$215.0043.410.508.8%191 $209.00$1.0919.10Oct-092812,20031.00$0.17$2,097.00$224.0041.640.5910.7%330 $353.00$1.0733.00Nov-093512,52035.00$0.18$2,195.00$253.0042.730.4311.5%884 $925.00$1.0588.40Dec-092414,48043.00$0.18$2,541.00$306.0049.420.5812.0%1,089 $1,137.00$1.04108.90Jan-103117,28047.00$0.15$2,635.00$334.0058.980.4912.7%1,073 $932.00$0.87107.30Feb-103114,92034.00$0.15$2,204.00$243.0050.920.5911.0%1,169 $1,014.00$0.87116.90Mar-103213,12034.00$0.15$2,013.00$242.0044.780.5012.0%828 $722.00$0.8782.80Apr-102813,04034.00$0.18$2,308.00$258.0044.510.5711.2%557 $496.00$0.8955.70May-103511,96031.00$0.18$2,128.00$236.0040.820.4611.1%524 $467.00$0.8952.40Jun-102811,52032.00$0.18$2,079.00$240.0039.320.5411.5%195 $182.00$0.9319.50Jul-103812,96036.00$0.18$2,342.00$270.0044.230.3911.5%207 $192.00$0.9320.70Aug-102711,88031.00$0.18$2,139.00$238.0040.550.5911.1%184 $257.00$1.4018.40Sep-102711,68025.00$0.17$2,011.00$186.0039.860.729.2%166 $242.00$1.4616.60Oct-103713,44033.00$0.17$2,250.00$252.0045.870.4611.2%383 $416.00$1.0938.30Nov-102811,76035.00$0.18$2,095.00$274.0040.140.5013.1%975 $890.00$0.9197.50Dec-102714,68039.00$0.17$2,500.00$304.0050.100.5812.2%1,128 $1,013.00$0.90112.80#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00#DIV/0!0.00#DIV/0!#DIV/0!#DIV/0!0.00Montly Average30.5813156.6734.33#DIV/0!$2,419.46$251.0444.90#DIV/0!#DIV/0!676.88$671.75#DIV/0!67.69Total734315,760N/AN/A$58,067.00$6,025.001,077.69N/AN/A16,245.00$16,122.00N/A1624.50Monthly BenchmarkOccupancyPublic Order and Safety ......42.36339245.396% DifferenceSize10,001 to 100,000 Square Feet106.00%149.10%Energy Use Index Form 1Natural Gas ElectricitySoldotna Fire Station
Energy Audit Report
April 16, 2012
pg. 30
HDDCCDProductionBtu/Sq. FtCost $/Sq Ft181720,583$0.53142516,188$0.41138013,302$0.3691012,180$0.315806,238$0.224156,383$0.222585,279$0.223445,466$0.215215,371$0.237456,412$0.21138711,266$0.27140513,601$0.32154714,285$0.31107814,418$0.28122110,960$0.238578,609$0.245658,009$0.224005,053$0.193345,578$0.223325,064$0.215074,851$0.198987,231$0.23122411,824$0.26186413,995$0.300$0.000$0.000$0.000$0.000$0.000$0.000$0.000$0.000$0.000$0.000$0.000$0.00611.500.000.009,673$0.2722014.000.000.00232,147$6.376,792142.42%EUI
Energy Audit Report
April 16, 2012
pg. 31
Climate & Fuel Assumptions
Client Name:Soldotna Fire Station Address:
Square Footage 11640
Days
Occupied
per Year State HDD CDD
Avg.
Temp
365 Alaska 10,942 0 35.0
Fuels
Natural Gas $1.03 $ Per CCF $1.00 Per Therm
Oil $ Per Gallon $0.00 Per Therm
Electricity $0.16 $ per KWH $4.78 Per Therm
Propane $ per Gallon $0.00 Per Therm
Wood $ Per Cord $0.00 Per Therm
Coal $ Per Ton $0.00 Per Therm
Electrical Demand Charge $7.32 Kw/Month
City
Kenai 9 N
Client Information
Energy Audit Report
April 16, 2012
pg. 32
Discount, Fuel Escalation, and Inflation Assumptions
1 = Yes Real Discount Rate (i) . . . . . . . . . . .2005 - 2040 . . . . . . . . 3.0%
0 = No Electricity. . . . . . . . . . . . . . . . . . . . .2005 - 2015 . . .2.7%
IOU Electricity Source*1 (Investor Owned Utility)2016 - 2025 . . .3.1%
POU Electricity Source**0 2026 - 2040 . . .4.7%
Natural Gas Fuel?1 Natural Gas . . . . . . . . . . . . . . . . . . . . . . . .2005 - 2015 . . .1.3%
Propane Fuel?0 And other fossil fuels 2016 - 2025 . . .6.5%
Oil Fuel?0 2026 - 2040 . . .10.3%
Maintenance . . . . . . . . . . . . . . . . . .2005 - 2040 . . . . . . . . 3.0%
Inflation 2005 - 2040 . . . . . . . . 3.0%
* IOU = Invester Owned Utility
** POU = Publicly Owned Utility
F U E L P R I C E E S C A L A T I O N I N F O R M A T I O N:
Select value and key in above as decimal fraction.
Years:
Electricity 2005 - 2015 . . .2.7%0.027
(Investor-Owned)2016 - 2025 . . .3.1%0.031
2026 - 2040 . . .4.7%0.047
Electricity 2005 - 2015 . . .2.7%0.027
(Public Owned)2016 - 2025 . . .3.1%0.031
2026 - 2040 . . .4.7%0.047
Natural Gas 2005 - 2015 . . .1.3%0.013
2016 - 2025 . . .6.5%0.065
2026 - 2040 . . .10.3%0.103
Oil 2005 - 2015 . . .1.3%0.013
2016 - 2025 . . .6.5%0.065
2026 - 2040 . . .10.3%0.103
Propane 2005 - 2015 . . .Assume same as natural gas
2016 - 2025 . . .
2026 - 2040 . . .
Energy Audit Report
April 16, 2012
pg. 33
ECM #1 Calculations
Equipement Description
Number of Like Equipement 6 6
Equipement Wattage 1500 1500
Hours on per Week 140 70
Cost of Retrofit $530.93
Total KWH Cost $10,679.76 $5,339.88
Total Demand Cost $790.56 $790.56
Total Yearly Cost $11,470.32 $6,130.44
Yearly Savings $5,339.88
Total Retrofit Cost $3,185.58
Payback Period 0.6 years
Plug in engine block heater for trucks parked in garage bays.
Retrofit Description Install timer on interior block heater circuits to limit time on to 30 minutes
per hour. Adjustments may be needed to maintain proper engine
temperature with the on/off cycle. Intermatic ET70815CR Time Switch or
similar.
Energy Audit Report
April 16, 2012
pg. 34
---------------------A N N U A L R E A L C A S H F L O W S C U R R E N T----------------------------------------------------------------------------------A N N U A L R E A L C A S H F L O W S P R O P O S E D----------------------------- (Begin)First &AnnualAnnualAnnualTotalPresentPresentPresent(Begin)First &AnnualAnnualAnnualTotalPresentPresentPresentPresent Value of YearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofYearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofCumulative CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2,012$0-$ $11,470$11,470(1+i)^-nCostsCosts2,012$3,186$0-$ $5,340$5,340(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$3,186------$3,1861.00$3,186$3,1862,01300011,78011,7800.9711,43711,436.91$ 2,0130005,4845,4840.975,324$8,5102,927$ 2,01400012,09812,0980.9411,40422,841$ 2,0140005,6325,6320.945,309$13,8199,022$ 2,01500012,42512,4250.9211,37034,211$ 2,0150005,7845,7840.925,293$19,11215,099$ 2,01600012,76012,7600.8911,33745,548$ 2,0160005,9405,9400.895,278$24,39021,158$ 2,01700013,15613,1560.8611,34856,896$ 2,0170006,1256,1250.865,283$29,67327,223$ 2,01800013,56413,5640.8411,35968,256$ 2,0180006,3146,3140.845,288$34,96133,294$ 2,01900013,98413,9840.8111,37079,626$ 2,0190006,5106,5100.815,293$40,25539,371$ 2,02000014,41814,4180.7911,38191,007$ 2,0200006,7126,7120.795,298$45,55345,454$ 2,02100014,86514,8650.7711,392102,400$ 2,0210006,9206,9200.775,304$50,85751,543$ 2,02200015,32515,3250.7411,403113,803$ 2,0220007,1357,1350.745,309$56,16557,638$ 2,02300015,80015,8000.7211,415125,218$ 2,0230007,3567,3560.725,314$61,47963,738$ 2,02400016,29016,2900.7011,426136,643$ 2,0240007,5847,5840.705,319$66,79869,845$ 2,02500016,79516,7950.6811,437148,080$ 2,0250007,8197,8190.685,324$72,12375,958$ 2,02600017,31617,3160.6611,448159,528$ 2,0260008,0618,0610.665,329$77,45282,076$ 2,02700018,13018,1300.6411,637171,165$ 2,0270008,4408,4400.645,417$82,86988,295$ 2,02800018,98218,9820.6211,829182,994$ 2,0280008,8378,8370.625,507$88,37694,617$ 2,02900019,87419,8740.6112,024195,018$ 2,0290009,2529,2520.615,598$93,974101,044$ 2,03000020,80820,8080.5912,223207,240$ 2,0300009,6879,6870.595,690$99,664107,576$ 2,03100021,78621,7860.5712,424219,664$ 2,03100010,14210,1420.575,784$105,448114,217$ 2,03200022,81022,8100.5512,629232,294$ 2,03200010,61910,6190.555,879$111,327120,966$ 2,03300023,88223,8820.5412,838245,131$ 2,03300011,11811,1180.545,976$117,304127,828$ 2,03400025,00425,0040.5213,050258,181$ 2,03400011,64111,6410.526,075$123,379134,802$ 2,03500026,18026,1800.5113,265271,446$ 2,03500012,18812,1880.516,175$129,554141,892$ 2,03600027,41027,4100.4913,484284,930$ 2,03600012,76012,7600.496,277$135,832149,098$ 2,03700028,69828,6980.4813,707298,637$ 2,03700013,36013,3600.486,381$142,213156,424$ 2,03800030,04730,0470.4613,933312,569$ 2,03800013,98813,9880.466,486$148,699163,871$ 2,03900031,45931,4590.4514,163326,732$ 2,03900014,64614,6460.456,593$155,292171,440$ 2,04000032,93832,9380.4414,396341,128$ 2,04000015,33415,3340.446,702$161,994179,134$ 2,04100034,48634,4860.4214,634355,763$ 2,04100016,05516,0550.426,813$168,807186,956$ 2,04200036,10736,1070.4114,876370,638$ 2,04200016,80916,8090.416,925$175,732194,906$ Totals:$0$0$0$619,177$619,177$370,638=30-year LCCTotals:$3,186$0$0$288,251$291,437$175,732=30-year LCC
Energy Audit Report
April 16, 2012
pg. 35
ECM #2 Calculations
Space Description
Number of Fixtures 6 6
Lamps per Fixture 1 1
Lamp Type Incandescent CFL
Fixture Wattage 60 18
Hours on per Week 56 56
Cost of New Lamp $19.58
Cost of New Fixture
Total KWH Cost $170.88 $51.26
Total Demand Cost $31.62 $9.49
Total Yearly Cost $202.50 $60.75
Yearly Savings $141.75
Total Retrofit Cost $117.48
Payback Period 0.8 years
Men's Dorm Bathroom, Women's Dorm Bathroom, Tower, Boiler
Room
Retrofit Description Replace existing incandescent lamps with 18w compact fluorescent
lamps.
Energy Audit Report
April 16, 2012
pg. 36
---------------------A N N U A L R E A L C A S H F L O W S C U R R E N T----------------------------------------------------------------------------------A N N U A L R E A L C A S H F L O W S P R O P O S E D----------------------------- (Begin)First &AnnualAnnualAnnualTotalPresentPresentPresent(Begin)First &AnnualAnnualAnnualTotalPresentPresentPresentPresent Value of YearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofYearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofCumulative CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2,012$4-$ $202$207(1+i)^-nCostsCosts2,012$117$1-$ $61$62(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$117------$1171.00$117$1172,0130402082120.97206205.96$ 2,01301062640.9762$17927$ 2,0140402142180.94205411$ 2,01401064650.9462$241170$ 2,0150402192240.92205616$ 2,01501066670.9261$302314$ 2,0160502252300.89204820$ 2,01601068690.8961$364457$ 2,0170502322370.862041,025$ 2,01701070710.8661$425600$ 2,0180502392440.842051,229$ 2,01801072730.8461$486743$ 2,0190502472520.812051,434$ 2,01901074760.8161$548886$ 2,0200502552600.792051,639$ 2,02002076780.7961$6091,030$ 2,0210502622680.772051,844$ 2,02102079800.7762$6711,173$ 2,0220502712760.742052,050$ 2,02202081830.7462$7321,317$ 2,0230602792850.722062,255$ 2,02302084850.7262$7941,461$ 2,0240602882930.702062,461$ 2,02402086880.7062$8561,605$ 2,0250602973020.682062,667$ 2,02502089910.6862$9181,749$ 2,0260603063120.662062,873$ 2,02602092940.6662$9791,894$ 2,0270603203260.642093,083$ 2,02702096980.6463$1,0422,040$ 2,0280603353420.622133,295$ 2,0280201011020.6264$1,1062,189$ 2,0290703513580.612163,512$ 2,0290201051070.6165$1,1712,341$ 2,0300703673740.592203,732$ 2,0300201101120.5966$1,2372,495$ 2,0310703853920.572233,955$ 2,0310201151180.5767$1,3042,651$ 2,0320704034100.552274,182$ 2,0320201211230.5568$1,3722,810$ 2,0330804224290.542314,413$ 2,0330201261290.5469$1,4412,971$ 2,0340804414490.522344,647$ 2,0340201321350.5270$1,5123,135$ 2,0350804624700.512384,885$ 2,0350201391410.5171$1,5833,302$ 2,0360804844920.492425,127$ 2,0360201451480.4973$1,6563,472$ 2,0370805075150.482465,373$ 2,0370301521550.4874$1,7303,644$ 2,0380905305390.462505,623$ 2,0380301591620.4675$1,8053,819$ 2,0390905555640.452545,878$ 2,0390301671690.4576$1,8813,997$ 2,0400905815910.442586,136$ 2,0400301741770.4477$1,9584,178$ 2,04101006096180.422626,398$ 2,0410301831860.4279$2,0374,361$ 2,04201006376470.412676,665$ 2,0420301911940.4180$2,1174,548$ Totals:$0$198$0$10,931$11,129$6,665=30-year LCCTotals:$117$60$0$3,279$3,456$2,117=30-year LCC
Energy Audit Report
April 16, 2012
pg. 37
ECM #3 Calculations
Equipement Description
Number of Like Equipement 4 4
Equipement Wattage 1500 1500
Hours on per Week 84 42
Cost of Retrofit $796.40
Total KWH Cost $4,271.90 $2,135.95
Total Demand Cost $527.04 $527.04
Total Yearly Cost $4,798.94 $2,662.99
Yearly Savings $2,135.95
Total Retrofit Cost $3,185.60
Payback Period 1.5 years
Plug in engine block heaters for exterior outlets
Retrofit Description Install timer on exterior block heater circuits to limit time on to 30 minutes
per hour. Adjustments may be needed to maintain proper engine
temperature with the on/off cycle. Intermatic ET70815CR Time Switch or
similar.
Energy Audit Report
April 16, 2012
pg. 38
---------------------A N N U A L R E A L C A S H F L O W S C U R R E N T----------------------------------------------------------------------------------A N N U A L R E A L C A S H F L O W S P R O P O S E D----------------------------- (Begin)First &AnnualAnnualAnnualTotalPresentPresentPresent(Begin)First &AnnualAnnualAnnualTotalPresentPresentPresentPresent Value of YearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofYearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofCumulative CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2,012$96-$ $4,799$4,895(1+i)^-nCostsCosts2,012$3,186$43-$ $2,136$2,179(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$3,186------$3,1861.00$3,186$3,1862,01309904,9295,0270.974,8814,880.95$ 2,01304402,1942,2380.972,172$5,358(477)$ 2,014010205,0625,1630.944,8679,748$ 2,01404502,2532,2980.942,166$7,5242,224$ 2,015010505,1985,3030.924,85314,601$ 2,01504702,3142,3600.922,160$9,6844,917$ 2,016010805,3395,4470.894,83919,440$ 2,01604802,3762,4240.892,154$11,8387,602$ 2,017011105,5045,6150.864,84424,284$ 2,01705002,4502,4990.862,156$13,99410,290$ 2,018011505,6755,7890.844,84829,133$ 2,01805102,5262,5770.842,158$16,15212,980$ 2,019011805,8515,9690.814,85333,986$ 2,01905302,6042,6570.812,160$18,31215,673$ 2,020012206,0326,1540.794,85838,843$ 2,02005402,6852,7390.792,162$20,47418,369$ 2,021012506,2196,3440.774,86243,706$ 2,02105602,7682,8240.772,164$22,63921,067$ 2,022012906,4126,5410.744,86748,573$ 2,02205702,8542,9110.742,166$24,80523,768$ 2,023013306,6116,7430.724,87253,444$ 2,02305902,9423,0010.722,168$26,97326,471$ 2,024013706,8156,9520.704,87658,321$ 2,02406103,0333,0940.702,170$29,14329,177$ 2,025014107,0277,1680.684,88163,201$ 2,02506303,1283,1900.682,172$31,31631,886$ 2,026014507,2457,3900.664,88668,087$ 2,02606503,2243,2890.662,174$33,49034,597$ 2,027015007,5857,7350.644,96573,051$ 2,02706703,3763,4430.642,210$35,70037,352$ 2,028015407,9428,0960.625,04578,096$ 2,02806903,5353,6030.622,245$37,94540,151$ 2,029015908,3158,4730.615,12783,223$ 2,02907103,7013,7710.612,282$40,22742,996$ 2,030016308,7068,8690.595,21088,433$ 2,03007303,8753,9480.592,319$42,54645,887$ 2,031016809,1159,2830.575,29493,727$ 2,03107504,0574,1320.572,356$44,90248,824$ 2,032017309,5439,7170.555,38099,106$ 2,03207704,2484,3250.552,394$47,29751,810$ 2,033017909,99210,1700.545,467104,573$ 2,03307904,4474,5270.542,433$49,73054,843$ 2,0340184010,46110,6450.525,556110,129$ 2,03408204,6564,7380.522,473$52,20357,926$ 2,0350189010,95311,1420.515,646115,775$ 2,03508404,8754,9590.512,513$54,71661,059$ 2,0360195011,46811,6630.495,737121,512$ 2,03608705,1045,1910.492,554$57,26964,243$ 2,0370201012,00712,2080.485,830127,343$ 2,03708905,3445,4340.482,595$59,86467,478$ 2,0380207012,57112,7780.465,925133,268$ 2,03809205,5955,6870.462,637$62,50270,766$ 2,0390213013,16213,3750.456,021139,289$ 2,03909505,8585,9530.452,680$65,18274,108$ 2,0400220013,78114,0000.446,119145,408$ 2,04009806,1346,2310.442,724$67,90577,503$ 2,0410226014,42814,6540.426,219151,627$ 2,041010106,4226,5230.422,768$70,67380,954$ 2,0420233015,10615,3390.416,320157,947$ 2,042010406,7246,8270.412,813$73,48684,461$ Totals:$0$4,703$0$259,051$263,754$157,947=30-year LCCTotals:$3,186$2,093$0$115,300$120,579$73,486=30-year LCC
Energy Audit Report
April 16, 2012
pg. 39
ECM #4 Calculations
Space Description
Number of Fixtures 54 54
Lamps per Fixture 4 4
Lamp Type 4 foot T-12 4 foot T-8
Fixture Wattage 195.6 88.5
Hours on per Week 56 56
Cost of New Lamp
Cost of New Fixture $436.83
Total KWH Cost $5,013.51 $2,268.38
Total Demand Cost $927.80 $419.79
Total Yearly Cost $5,941.31 $2,688.17
Yearly Savings $3,253.14
Total Retrofit Cost $23,588.82
Payback Period 7.3 years
Replace existing 4' 4 lamp T12 fixtures with 4 lamp T8 fixtures with
25w lamps and electronic ballasts.
Kitchen, Administration, Office, Dorm, Entry, Assistant Chief's
Office, Chief's Office, Living Room, Generator Room, Gnereator
Retrofit Description
Energy Audit Report
April 16, 2012
pg. 40
---------------------A N N U A L R E A L C A S H F L O W S C U R R E N T----------------------------------------------------------------------------------A N N U A L R E A L C A S H F L O W S P R O P O S E D----------------------------- (Begin)First &AnnualAnnualAnnualTotalPresentPresentPresent(Begin)First &AnnualAnnualAnnualTotalPresentPresentPresentPresent Value of YearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofYearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofCumulative CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2,012$119-$ $5,941$6,060(1+i)^-nCostsCosts2,012$23,589$54-$ $2,688$2,742(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$23,589------$23,5891.00$23,589$23,5892,013012206,1026,2240.976,0436,042.83$ 2,01305502,7612,8160.972,734$26,323(20,280)$ 2,014012606,2666,3930.946,02612,068$ 2,01405702,8352,8920.942,726$29,049(16,981)$ 2,015013006,4366,5660.926,00818,077$ 2,01505902,9122,9710.922,719$31,768(13,691)$ 2,016013406,6096,7430.895,99124,068$ 2,01606102,9903,0510.892,711$34,478(10,410)$ 2,017013806,8146,9520.865,99730,065$ 2,01706203,0833,1450.862,713$37,192(7,127)$ 2,018014207,0267,1670.846,00336,068$ 2,01806403,1793,2430.842,716$39,908(3,840)$ 2,019014607,2437,3890.816,00842,076$ 2,01906603,2773,3430.812,718$42,626(550)$ 2,020015107,4687,6180.796,01448,090$ 2,02006803,3793,4470.792,721$45,3472,743$ 2,021015507,6997,8540.776,02054,110$ 2,02107003,4843,5540.772,724$48,0716,039$ 2,022016007,9388,0980.746,02660,135$ 2,02207203,5923,6640.742,726$50,7979,338$ 2,023016408,1848,3490.726,03166,166$ 2,02307403,7033,7770.722,729$53,52612,640$ 2,024016908,4388,6070.706,03772,203$ 2,02407703,8183,8940.702,731$56,25815,946$ 2,025017508,6998,8740.686,04378,246$ 2,02507903,9364,0150.682,734$58,99219,255$ 2,026018008,9699,1490.666,04884,295$ 2,02608104,0584,1390.662,737$61,72822,566$ 2,027018509,3919,5760.646,14690,441$ 2,02708404,2494,3330.642,781$64,50925,932$ 2,028019109,83210,0230.626,24696,687$ 2,02808604,4494,5350.622,826$67,33529,352$ 2,0290196010,29410,4910.616,347103,034$ 2,02908904,6584,7460.612,872$70,20732,827$ 2,0300202010,77810,9800.596,450109,484$ 2,03009204,8774,9680.592,918$73,12536,358$ 2,0310208011,28511,4930.576,554116,038$ 2,03109405,1065,2000.572,965$76,09139,947$ 2,0320215011,81512,0300.556,660122,698$ 2,03209705,3465,4430.553,014$79,10443,594$ 2,0330221012,37012,5910.546,768129,467$ 2,033010005,5975,6970.543,062$82,16747,300$ 2,0340228012,95213,1790.526,878136,345$ 2,034010305,8605,9630.523,112$85,27951,066$ 2,0350235013,56013,7950.516,990143,335$ 2,035010606,1356,2420.513,163$88,44154,893$ 2,0360242014,19814,4390.497,103150,438$ 2,036010906,4246,5330.493,214$91,65558,783$ 2,0370249014,86515,1140.487,218157,656$ 2,037011306,7266,8380.483,266$94,92162,735$ 2,0380256015,56415,8200.467,336164,992$ 2,038011607,0427,1580.463,319$98,24066,752$ 2,0390264016,29516,5590.457,455172,446$ 2,039011907,3737,4920.453,373$101,61370,834$ 2,0400272017,06117,3330.447,576180,022$ 2,040012307,7197,8420.443,428$105,04174,982$ 2,0410280017,86318,1430.427,699187,721$ 2,041012708,0828,2090.423,483$108,52479,197$ 2,0420288018,70218,9910.417,824195,545$ 2,042013008,4628,5920.413,540$112,06483,481$ Totals:$0$5,823$0$320,717$326,539$195,545=30-year LCCTotals:$23,589$2,635$0$145,110$171,333$112,064=30-year LCC
Energy Audit Report
April 16, 2012
pg. 41
ECM #5 Calculations
System 1 - Location Served:
Fuel Type AFUE Thermostat
Setpoint
Full Load KW
(Electric Only)
Mo/Yr Operation
(Electric Only)Cost
Existing Natural Gas 80.00%70.0 0.0 N/A
Proposed Natural Gas 95.00%65.0 0.0 $59,324.61
System 2 - Location Served:
Fuel Type AFUE Thermostat
Setpoint
Full Load KW
(Electric Only)
Mo/Yr Operation
(Electric Only)Cost
Existing Natural Gas 80.00%70.0 N/A
Proposed Natural Gas 95.00%65.0
System 3 - Location Served:
Fuel Type AFUE Thermostat
Setpoint
Full Load KW
(Electric Only)
Mo/Yr Operation
(Electric Only)Cost
Existing Natural Gas 78.70%70.0 N/A
Proposed Natural Gas 78.70%70.0
Heating Data
15
Volume Served
15
Description
of Retrofit
Boiler
Combines 4 garage bay unit heaters
Replace all heating systems with 95% AFUE boiler. Assumes existing heating systems
will need replaced in the next 20 years.
15
Volume Served
70
Description
of Retrofit
Volume Served
70
Description
of Retrofit
15
Estimated Demand Charges (electric)
Estimated Savings per Year
$0.00
$8,138.80
$1,973.31
$59,324.61Estimated Cost of Heating System
Replacements
New Heating SystemsExisting Heating Systems
8123 6,153.52
$1.00
70
Average Cost Per Therm of Heating Fuels,
proportional to volume
Average Thermostat Setpoint, proportional
to volume
Therms required to heat the building over
1 year
Estimated Cost over 1 year $6,165.49
Average AFUE of All Heating Systems,
proportional to volume 79.81%
Heating System Summary
$1.00
65.75
$0.00
92.56%
Energy Audit Report
April 16, 2012
pg. 42
---------------------A N N U A L R E A L C A S H F L O W S C U R R E N T----------------------------------------------------------------------------------A N N U A L R E A L C A S H F L O W S P R O P O S E D----------------------------- (Begin)First &AnnualAnnualAnnualTotalPresentPresentPresent(Begin)First &AnnualAnnualAnnualTotalPresentPresentPresentPresent Value of YearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofYearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofCumulative CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2,012$2,9668,139$ $0$11,105(1+i)^-nCostsCosts2,012$59,325$626,165$ $0$6,227(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$59,325------$59,3251.00$59,325$59,3252,0133,0558,245011,3000.9710,97110,970.70$ 2,0130646,24606,3090.976,125$65,450(54,479)$ 2,01403,1478,352011,4990.9410,83921,809$ 2,0140656,32706,3920.946,025$71,475(49,666)$ 2,01503,2418,460011,7020.9210,70932,518$ 2,0150676,40906,4760.925,927$77,402(44,884)$ 2,01603,3398,570011,9090.8910,58143,099$ 2,0160696,49206,5620.895,830$83,232(40,133)$ 2,01703,4399,127012,5660.8610,84053,938$ 2,0170716,91406,9860.866,026$89,258(35,320)$ 2,01803,5429,721013,2630.8411,10765,046$ 2,0180747,36407,4370.846,229$95,487(30,441)$ 2,01903,64810,353014,0010.8111,38476,429$ 2,0190767,84207,9180.816,438$101,925(25,496)$ 2,02003,75811,025014,7830.7911,67088,099$ 2,0200788,35208,4300.796,655$108,580(20,481)$ 2,02103,87011,742015,6120.7711,966100,065$ 2,0210808,89508,9760.776,879$115,459(15,395)$ 2,02203,98612,505016,4920.7412,271112,336$ 2,0220839,47309,5560.747,111$122,570(10,234)$ 2,02304,10613,318017,4240.7212,588124,924$ 2,02308510,089010,1740.727,350$129,920(4,997)$ 2,02404,22914,184018,4130.7012,915137,838$ 2,02408810,745010,8330.707,598$137,518320$ 2,02504,35615,106019,4620.6813,253151,091$ 2,02509111,443011,5340.687,854$145,3725,719$ 2,02604,48716,088020,5740.6613,602164,693$ 2,02609312,187012,2800.668,119$153,49111,202$ 2,02704,62117,745022,3660.6414,356179,049$ 2,02709613,442013,5380.648,690$162,18116,868$ 2,02804,76019,572024,3320.6215,163194,212$ 2,02809914,827014,9260.629,301$171,48222,730$ 2,02904,90321,588026,4910.6116,028210,240$ 2,029010216,354016,4560.619,956$181,43928,801$ 2,03005,05023,812028,8620.5916,953227,193$ 2,030010518,039018,1440.5910,657$192,09635,097$ 2,03105,20126,265031,4660.5717,945245,138$ 2,031010819,897020,0050.5711,408$203,50441,633$ 2,03205,35728,970034,3270.5519,006264,144$ 2,032011121,946022,0570.5512,213$215,71748,427$ 2,03305,51831,954037,4720.5420,143284,287$ 2,033011524,206024,3210.5413,074$228,79155,496$ 2,03405,68435,245040,9290.5221,360305,647$ 2,034011826,700026,8180.5213,996$242,78762,860$ 2,03505,85438,875044,7290.5122,664328,311$ 2,035012229,450029,5710.5114,984$257,77070,541$ 2,03606,03042,879048,9090.4924,060352,371$ 2,036012532,483032,6080.4916,041$273,81278,560$ 2,03706,21147,296053,5070.4825,555377,926$ 2,037012935,829035,9580.4817,174$290,98586,941$ 2,03806,39752,168058,5650.4627,156405,082$ 2,038013339,519039,6520.4618,386$309,37295,711$ 2,03906,58957,541064,1300.4528,870433,953$ 2,039013743,590043,7270.4519,685$329,057104,896$ 2,04006,78763,468070,2540.4430,706464,659$ 2,040014148,079048,2200.4421,076$350,133114,526$ 2,04106,99070,005076,9950.4232,672497,332$ 2,041014553,032053,1770.4222,565$372,698124,633$ 2,04207,20077,215084,4150.4134,778532,110$ 2,042015058,494058,6430.4124,160$396,859135,251$ Totals:$0$145,353$811,394$0$956,747$532,110=30-year LCCTotals:$59,325$3,021$614,666$0$677,012$396,859=30-year LCC
Energy Audit Report
April 16, 2012
pg. 43
ECM #6 Calculations
Space Description
Number of Fixtures 102 102
Lamps per Fixture 2 2
Lamp Type 4 foot T-12 4 foot T-8
Fixture Wattage 97.85 45.5
Hours on per Week 56 56
Cost of New Lamp
Cost of New Fixture $271.22
Total KWH Cost $4,737.40 $2,202.88
Total Demand Cost $876.70 $407.67
Total Yearly Cost $5,614.10 $2,610.54
Yearly Savings $3,003.56
Total Retrofit Cost $27,664.44
Payback Period 9.2 years
Utility/Training Aid Room, Compressor Room, Hose Room, Garage
Bay Bathrooms, Shop, Garage Equipement Bays, Mezzanine,
Replace existing 4' 2 lamp T12 fixtures with 2 lamp T8 fixtures with
25w lamps and electronic ballasts.
Retrofit Description
Energy Audit Report
April 16, 2012
pg. 44
---------------------A N N U A L R E A L C A S H F L O W S C U R R E N T----------------------------------------------------------------------------------A N N U A L R E A L C A S H F L O W S P R O P O S E D----------------------------- (Begin)First &AnnualAnnualAnnualTotalPresentPresentPresent(Begin)First &AnnualAnnualAnnualTotalPresentPresentPresentPresent Value of YearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofYearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofCumulative CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2,012$112-$ $5,614$5,726(1+i)^-nCostsCosts2,012$27,664$52-$ $2,611$2,663(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$27,664------$27,6641.00$27,664$27,6642,013011605,7665,8810.975,7105,710.03$ 2,01305402,6812,7350.972,655$30,320(24,610)$ 2,014011905,9216,0400.945,69411,404$ 2,01405502,7532,8090.942,648$32,967(21,563)$ 2,015012306,0816,2040.925,67717,081$ 2,01505702,8282,8850.922,640$35,607(18,526)$ 2,016012606,2456,3720.895,66122,743$ 2,01605902,9042,9630.892,632$38,240(15,497)$ 2,017013006,4396,5690.865,66728,409$ 2,01706102,9943,0550.862,635$40,875(12,465)$ 2,018013406,6396,7730.845,67234,081$ 2,01806203,0873,1490.842,637$43,512(9,431)$ 2,019013806,8446,9830.815,67739,759$ 2,01906403,1833,2470.812,640$46,152(6,393)$ 2,020014207,0577,1990.795,68345,441$ 2,02006603,2813,3470.792,643$48,795(3,353)$ 2,021014707,2757,4220.775,68851,130$ 2,02106803,3833,4510.772,645$51,440(310)$ 2,022015107,5017,6520.745,69456,823$ 2,02207003,4883,5580.742,648$54,0872,736$ 2,023015507,7337,8890.725,69962,522$ 2,02307203,5963,6680.722,650$56,7375,785$ 2,024016007,9738,1330.705,70568,227$ 2,02407403,7083,7820.702,653$59,3908,837$ 2,025016508,2208,3850.685,71073,937$ 2,02507703,8223,8990.682,655$62,04511,892$ 2,026017008,4758,6450.665,71579,652$ 2,02607903,9414,0200.662,658$64,70314,950$ 2,027017508,8749,0480.645,80885,460$ 2,02708104,1264,2080.642,701$67,40318,057$ 2,028018009,2919,4710.625,90291,362$ 2,02808404,3204,4040.622,744$70,14821,214$ 2,029018609,7279,9130.615,99797,359$ 2,02908604,5234,6090.612,789$72,93624,423$ 2,0300191010,18410,3760.596,095103,454$ 2,03008904,7364,8250.592,834$75,77027,684$ 2,0310197010,66310,8600.576,193109,647$ 2,03109204,9585,0500.572,880$78,65030,997$ 2,0320203011,16411,3670.556,294115,941$ 2,03209405,1915,2860.552,927$81,57734,364$ 2,0330209011,68911,8980.546,396122,337$ 2,03309705,4355,5320.542,974$84,55137,786$ 2,0340215012,23812,4530.526,499128,836$ 2,034010005,6915,7910.523,022$87,57341,263$ 2,0350222012,81413,0350.516,605135,441$ 2,035010305,9586,0610.513,071$90,64444,797$ 2,0360228013,41613,6440.496,712142,153$ 2,036010606,2386,3440.493,121$93,76548,388$ 2,0370235014,04614,2810.486,821148,974$ 2,037010906,5326,6410.483,172$96,93752,037$ 2,0380242014,70614,9490.466,932155,905$ 2,038011306,8386,9510.463,223$100,16055,745$ 2,0390249015,39815,6470.457,044162,949$ 2,039011607,1607,2760.453,276$103,43559,514$ 2,0400257016,12116,3780.447,159170,108$ 2,040011907,4967,6160.443,329$106,76463,344$ 2,0410265016,87917,1440.427,275177,383$ 2,041012307,8497,9720.423,383$110,14767,236$ 2,0420273017,67217,9450.417,393184,776$ 2,042012708,2188,3440.413,438$113,58571,191$ Totals:$0$5,502$0$303,054$308,556$184,776=30-year LCCTotals:$27,664$2,558$0$140,919$171,142$113,585=30-year LCC
Energy Audit Report
April 16, 2012
pg. 45
ECM #7 Calculations
Component Framed
Section
Insulated
Section Component Framed
Section
Insulated
Section
Total R-Values 0 0 Total R-Values 0 0
Total U-Values 0.0000 #DIV/0!Total U-Values 0.0000 #DIV/0!
Percentage of Framing 100.00%Percentage of Framing 100.00%
Composite U-Value of Assembly 0.0000 Composite U-Value of Assembly 0.0000
Window U-value Window U-value
Wall Square Footage Wall Square Footage
Window Square Footage Window Square Footage
Door Square Footage 135 Door Square Footage 135
Door U Value 0.4 Door U-Value 0.16
Opaque Wall Area 0 Opaque Wall Area 0
Composite U-value for entire assembly 0.4000 Composite U-value for entire assembly 0.1600
Composite R-Value for entire assembly 2.5000 Composite R-Value for entire assembly 6.2500
Heating System Served System 1 Heating System Served System 1
Heat Loss in BTU/h 1890.00 Heat Loss in BTU/h 756.00Original
Heating
Proposed
Heating
Savings -
Original Heating
Savings -
Proposed Yearly Cost $207.36 7871.8 Yearly Cost $82.94 $69.85 $124.41 $89.80
Cost of Proposed Upgrade $5,065.52
Above Grade Wall - Original
Assembly 1 Assembly 1
Above Grade Wall - Proposed
Energy Audit Report
April 16, 2012
pg. 46
---------------------A N N U A L R E A L C A S H F L O W S C U R R E N T----------------------------------------------------------------------------------A N N U A L R E A L C A S H F L O W S P R O P O S E D----------------------------- (Begin)First &AnnualAnnualAnnualTotalPresentPresentPresent(Begin)First &AnnualAnnualAnnualTotalPresentPresentPresentPresent Value of YearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofYearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofCumulative CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2012$0207$ $0$207(1+i)^-nCostsCosts2012$5,066$083$ $0$83(1+i)^-nCostsCosts2012$0------$01.00$0-$ 2012$5,066------$5,0661.00$5,066$5,0662013021002100.97204203.94$ 201300840840.9782$5,147(4,943)$ 20140021302130.94201405$ 201400850850.9480$5,227(4,823)$ 20150021602160.92197602$ 201500860860.9279$5,306(4,704)$ 20160021802180.89194796$ 201600870870.8978$5,384(4,588)$ 20170023302330.86201996$ 201700930930.8680$5,464(4,468)$ 20180024802480.842071,204$ 201800990990.8483$5,547(4,343)$ 20190026402640.812141,418$ 20190010601060.8186$5,633(4,215)$ 20200028102810.792221,640$ 20200011201120.7989$5,722(4,082)$ 20210029902990.772291,869$ 20210012001200.7792$5,813(3,944)$ 20220031903190.742372,106$ 20220012701270.7495$5,908(3,802)$ 20230033903390.722452,351$ 20230013601360.7298$6,006(3,655)$ 20240036103610.702532,605$ 20240014501450.70101$6,107(3,503)$ 20250038503850.682622,867$ 20250015401540.68105$6,212(3,345)$ 20260041004100.662713,138$ 20260016401640.66108$6,321(3,183)$ 20270045204520.642903,428$ 20270018101810.64116$6,437(3,009)$ 20280049904990.623113,739$ 20280019901990.62124$6,561(2,822)$ 20290055005500.613334,072$ 20290022002200.61133$6,694(2,623)$ 20300060706070.593564,428$ 20300024302430.59143$6,837(2,409)$ 20310066906690.573824,810$ 20310026802680.57153$6,989(2,180)$ 20320073807380.554095,218$ 20320029502950.55163$7,153(1,935)$ 20330081408140.544385,656$ 20330032603260.54175$7,328(1,672)$ 20340089808980.524696,125$ 20340035903590.52187$7,515(1,391)$ 20350099009900.515026,626$ 20350039603960.51201$7,716(1,090)$ 2036001,09201,0920.495377,164$ 20360043704370.49215$7,931(767)$ 2037001,20501,2050.485767,739$ 20370048204820.48230$8,161(422)$ 2038001,32901,3290.466168,356$ 20380053205320.46247$8,408(52)$ 2039001,46601,4660.456609,016$ 20390058605860.45264$8,672344$ 2040001,61701,6170.447079,722$ 20400064706470.44283$8,954768$ 2041001,78401,7840.4275710,479$ 20410071307130.42303$9,2571,222$ 2042001,96701,9670.4181011,290$ 20420078707870.41324$9,5811,708$ Totals:$0$0$20,672$0$20,672$11,290=30-year LCCTotals:$5,066$0$8,269$0$13,334$9,581=30-year LCC
Energy Audit Report
April 16, 2012
pg. 47
ECM #8 Calculations
Component Framed
Section
Insulated
Section Component Framed
Section
Insulated
Section
Total R-Values 0 0 Total R-Values 0 0
Total U-Values 0.0000 #DIV/0!Total U-Values 0.0000 #DIV/0!
Percentage of Framing 100.00%Percentage of Framing 100.00%
Composite U-Value of Assembly 0.0000 Composite U-Value of Assembly 0.0000
Window U-value 0.41 Window U-value 0.3
Wall Square Footage Wall Square Footage
Window Square Footage 110 Window Square Footage 110
Door Square Footage Door Square Footage
Door U Value Door U-Value
Opaque Wall Area 0 Opaque Wall Area 0
Composite U-value for entire assembly 0.4100 Composite U-value for entire assembly 0.3000
Composite R-Value for entire assembly 2.4390 Composite R-Value for entire assembly 3.3333
Heating System Served System 1 Heating System Served System 1
Heat Loss in BTU/h 1578.50 Heat Loss in BTU/h 1155.00Original
Heating
Proposed
Heating
Savings -
Original Heating
Savings -
Proposed Yearly Cost $173.18 Yearly Cost $126.72 $106.71 $46.46 $33.54
Cost of Proposed Upgrade $4,615.60
Above Grade Wall - Original Above Grade Wall - Proposed
Assembly 2 Assembly 2
Energy Audit Report
April 16, 2012
pg. 48
---------------------A N N U A L R E A L C A S H F L O W S C U R R E N T----------------------------------------------------------------------------------A N N U A L R E A L C A S H F L O W S P R O P O S E D----------------------------- (Begin)First &AnnualAnnualAnnualTotalPresentPresentPresent(Begin)First &AnnualAnnualAnnualTotalPresentPresentPresentPresent Value of YearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofYearReplace.Maint.Nat.GasElectricAnnualWorthWorth ofWorth ofCumulative CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2012$0173$ $0$173(1+i)^-nCostsCosts2012$4,616$0127$ $0$127(1+i)^-nCostsCosts2012$0------$01.00$0-$ 2012$4,616------$4,6161.00$4,616$4,6162013017501750.97170170.32$ 20130012801280.97125$4,740(4,570)$ 20140017801780.94168338$ 20140013001300.94123$4,863(4,525)$ 20150018001800.92165503$ 20150013201320.92121$4,983(4,481)$ 20160018201820.89162665$ 20160013301330.89119$5,102(4,437)$ 20170019401940.86168832$ 20170014201420.86123$5,224(4,392)$ 20180020702070.841731,005$ 20180015101510.84127$5,351(4,346)$ 20190022002200.811791,184$ 20190016101610.81131$5,482(4,298)$ 20200023502350.791851,370$ 20200017201720.79136$5,618(4,248)$ 20210025002500.771911,561$ 20210018301830.77140$5,758(4,197)$ 20220026602660.741981,759$ 20220019501950.74145$5,903(4,144)$ 20230028302830.722051,964$ 20230020702070.72150$6,053(4,089)$ 20240030203020.702122,176$ 20240022102210.70155$6,207(4,032)$ 20250032103210.682192,394$ 20250023502350.68160$6,368(3,973)$ 20260034203420.662262,621$ 20260025002500.66166$6,533(3,912)$ 20270037803780.642422,863$ 20270027602760.64177$6,711(3,847)$ 20280041604160.622603,123$ 20280030503050.62190$6,900(3,778)$ 20290045904590.612783,401$ 20290033603360.61203$7,104(3,703)$ 20300050705070.592983,698$ 20300037103710.59218$7,322(3,623)$ 20310055905590.573194,017$ 20310040904090.57233$7,555(3,538)$ 20320061606160.553414,358$ 20320045104510.55250$7,805(3,446)$ 20330068006800.543654,724$ 20330049804980.54267$8,072(3,348)$ 20340075007500.523915,115$ 20340054905490.52286$8,358(3,243)$ 20350082708270.514195,534$ 20350060506050.51307$8,665(3,131)$ 20360091209120.494495,983$ 20360066806680.49328$8,994(3,010)$ 2037001,00601,0060.484816,464$ 20370073607360.48352$9,345(2,881)$ 2038001,11001,1100.465156,979$ 20380081208120.46377$9,722(2,743)$ 2039001,22401,2240.455517,530$ 20390089608960.45403$10,125(2,595)$ 2040001,35001,3500.445908,120$ 20400098809880.44432$10,557(2,437)$ 2041001,49001,4900.426328,752$ 2041001,09001,0900.42463$11,020(2,267)$ 2042001,64301,6430.416779,429$ 2042001,20201,2020.41495$11,515(2,086)$ Totals:$0$0$17,265$0$17,265$9,429=30-year LCCTotals:$4,616$0$12,633$0$17,249$11,515=30-year LCC
Energy Audit Report
April 16, 2012
pg. 49
Cost Data
Energy Audit Report
April 16, 2012
pg. 50