HomeMy WebLinkAboutCIRI-PAQ-CAEC Palmer Public Library 2012-EEFINAL ENERGY AUDIT
Palmer Public Library
655 South Valley Way
Palmer, AK 99645
ATTN: Beth Skow
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 20
Benchmark Information 21
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 lia bility 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 Palmer Public
Library as part of a contract for:
Alaska Housing Finance Corporation City of Palmer
Contact: Rebekah Luhrs Contact: Beth Skow
4300 Boniface Parkway 231 W Evergreen
Anchorage, AK 99510 Palmer, AK 99645
Email: rluhrs@ahfc.us Email: bskow@palmerak.org
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 $28,505.64
Natural Gas $10,749.00
Total $39,299.64
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 11,992 square foot library.
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
Replace (2) existing Grundfos UPS 50-160
circulation pump motors with equivalent
variable speed, permanent magnet motors.
$5,405 $550 $8,248 $13,653 1.5 6 153%
2 Replace existing lamps in 4' T8 fixtures with
25w lamps.$5,492 $356 $5,698 $11,190 1.0 8 104%
3
Replace (2) existing Weil McLain Boilers
with (2) 95% AFUE Boilers. This ECM
assumes boilers will need replaced in the next
20 years and has annulized that expense.
$69,450 $1,751 $35,013 $104,463 0.5 15 50%
4
Replace existing 10hp air handler motor with
motor having and efficiency of 91.7% or
better.
$3,975 $121 $1,822 $5,797 0.5 11 46%
Total, Cost Effective Measures $84,322 $2,778 $50,781 $135,103 0.6 60%
5
Replace existing T12 fixtures in Men's &
Women's Bathrooms with T8 fixtures with
25w lamps.
$2,178 ($4)($61)$2,117 0.0 17 -3%
6
Replace existing single pane with storm glass
windows with windows having a U-value of
0.3 or less.
$16,322 ($330)($6,596)$9,726 -0.4 27 -40%
7 Replace existing lamps in T8 U Bend fixtures
with 25w lamps.$1,837 ($55)($952)$885 -0.5 >30 -52%
8 Replace existing domestic water heater with
indirect fired boiler mate. $4,505 ($237)($3,560)$945 -0.8 >30 -79%
9
Replace existing T12 fixtures in 2nd Floor,
Boiler Room, Fan Room with T8 fixtures
with 25w lamps.
$4,068 ($249)($3,987)$81 -1.0 >30 -98%
Total, All Measures $113,232 $1,902 $35,625 $148,857 0.3 31%
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 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, adjusted for general inflation, fuel price escalation, maintenance, discount rate and
installed cost.
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
The Palmer Public Library is a single story wood framed structure that is open to the public 6
days per week. The library is served by a full time staff of 4 to 5, plus 4 part time and 4 on call.
The library serves 200 - 700 occupants per day.
This building is currently served by 2 natural gas fired boilers for heat. Heat is supplied to the
building through baseboard and forced air. Domestic hot water is supplied by a stand-alone water
heater. Outside air and temperature are controlled through a direct digital control system.
The majority of lighting in the building is fluorescent, mostly newer T-8 lamps and fixtures. The
building has a significant amount of office equipment that contributes to the electrical cost.
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.
Energy Audit Report
April 16, 2012
pg. 11
This ECM assumes a life expectancy of 15 years for this measure.
ECM
#Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
ROI
1
Replace (2) existing Grundfos UPS 50-160
circulation pump motors with equivalent
variable speed, permanent magnet motors.
$5,405 $550 $8,248 $13,653 1.5 6 153%
Energy Audit Report
April 16, 2012
pg. 12
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
2 Replace existing lamps in 4' T8 fixtures with
25w lamps.$5,492 $356 $5,698 $11,190 1.0 8 104%
Energy Audit Report
April 16, 2012
pg. 13
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
3
Replace (2) existing Weil McLain Boilers
with (2) 95% AFUE Boilers. This ECM
assumes boilers will need replaced in the next
20 years and has annulized that expense.
$69,450 $1,751 $35,013 $104,463 0.5 15 50%
Energy Audit Report
April 16, 2012
pg. 14
This ECM assumes a life expectancy of 15 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 10hp air handler motor with
motor having and efficiency of 91.7% or
better.
$3,975 $121 $1,822 $5,797 0.5 11 46%
Energy Audit Report
April 16, 2012
pg. 15
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
5
Replace existing T12 fixtures in Men's &
Women's Bathrooms with T8 fixtures with
25w lamps.
$2,178 ($4)($61)$2,117 0.0 17 -3%
Energy Audit Report
April 16, 2012
pg. 16
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
6
Replace existing single pane with storm glass
windows with windows having a U-value of
0.3 or less.
$16,322 ($330)($6,596)$9,726 -0.4 27 -40%
Energy Audit Report
April 16, 2012
pg. 17
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
7 Replace existing lamps in T8 U Bend fixtures
with 25w lamps.$1,837 ($55)($952)$885 -0.5 >30 -52%
Energy Audit Report
April 16, 2012
pg. 18
This ECM assumes a life expectancy of 15 years for this measure. This EMC assumes using
proposed high efficiency boilers and that existing water tank will be replaced in the next 15 years
with a similar model and has annualized that expense.
ECM
#Improvement Description Installed
Cost
Annualized
NPV Savings
NPV Savings Over
Improvement Life
Breakeven
Cost SIR
Simple
Payback
(Years)
ROI
8 Replace existing domestic water heater with
indirect fired boiler mate. $4,505 ($237)($3,560)$945 -0.8 >30 -79%
Energy Audit Report
April 16, 2012
pg. 19
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
9
Replace existing T12 fixtures in 2nd Floor,
Boiler Room, Fan Room with T8 fixtures
with 25w lamps.
$4,068 ($249)($3,987)$81 -1.0 >30 -98%
Energy Audit Report
April 16, 2012
pg. 20
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.
Air Handlers – Filters and coils should be cleaned/replaced periodically to ensure proper airflow.
Dirty filter/coils decrease heat transfer ability and efficiency of the system. Belts should be
checked regularly and tightened when necessary.
Controls – During the audit it was noted that the control system for the building was not
functioning properly and we were not able to access the user interface. Controls on a building of
this type can be one of the largest savers or wasters of energy, depending on how the controls are
setup and maintained. Annual calibration, maintenance and updates are essential to a properly
performing system that saves money.
Energy Audit Report
April 16, 2012
pg. 21
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 twice 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. 22
Electrical usage in terms of BTU per square foot is about 50% higher than the national benchmark for
similar buildings. This indicates potential for electrical savings.
Energy Audit Report
April 16, 2012
pg. 23
The natural gas consumption of this building is much higher than the national average. This is in part due
to Alaska’s harsh climate but also shows a potential for energy savings.
Energy Audit Report
April 16, 2012
pg. 24
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. 25
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. 26
Natural gas consumption tracks closely with Heating Degree Days, which are a measure of the heating
load imposed by the climate. The moving average of gas consumption has been on a downward trend in
2010 due to a reduction in gas usage in the summer of 2010 versus the summer of 2009. It is unclear what
the cause of this reduction is, but it may be related to the HVAC electronic control systems.
Energy Audit Report
April 16, 2012
pg. 27
Electrical consumption has been steady over the last 2 year period. Peaks in electrical consumption match
with the cooling degree day load, which is a measure of how hot it is outside and can indicate how much
cooling a building may need.
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
Boiler 1 Utility Room Heating Weil McLain ABG 576 HWB 800,000
BTU/h 80%1/2 hp In series 20 0
Boiler 2 Utility Room Heating Weil McLain ABG 576 HWB 800,000
BTU/h 80%1/2 hp In series 20 0
DHW Utility Room Domestic Hot Water Rheemglass
Fury
20V50-
60N
WH 60,000
BTU/h 65%N/A 15 0
AHU Fan Room Air Circulation Lincoln Linguard Motor N/A 81.50%10 HP On 24/7 20 0
Fan Coil Utility Room Heating Ted Reed Thermal N/A Fan Coil N/A N/A .4 HP Never On 20 0
Fan Coil 2nd Floor Heating Ted Reed Thermal N/A Fan Coil N/A N/A .4 HP Never On 20 0
VAV AHUs Library
Ceiling Heating/Cooling N/A N/A Fan Coil N/A N/A 1/2 HP 6 units total 20 10
Energy Audit Report
April 16, 2012
pg. 29
Benchmark Data
Building Designation:Electric Meter #
Square footage of conditioned area:11992 Gas Meter #
Number of billing periods 24
Year:
Month Days in Billing
Period
Electric KWH Electric
Demand KW
Electric
Cost
$/KWH
Electric
Cost
Demand
Cost
Electric
MMBtu
Load
Factor
% of bill
from
demand
Dec-08 28 20,580 $0.15 $3,031.32 70.24 #DIV/0!0.0%
Jan-09 30 19,800 $0.15 $2,925.47 67.58 #DIV/0!0.0%
Feb-09 33 19,500 $0.15 $2,885.66 66.55 #DIV/0!0.0%
Mar-09 29 16,560 $0.14 $2,268.76 56.52 #DIV/0!0.0%
Apr-09 30 17,280 $0.14 $2,428.30 58.98 #DIV/0!0.0%
May-09 31 19,920 $0.14 $2,768.25 67.99 #DIV/0!0.0%
Jun-09 29 19,140 $0.13 $2,524.38 65.32 #DIV/0!0.0%
Jul-09 28 31,500 $0.13 $3,989.35 107.51 #DIV/0!0.0%
Aug-09 32 20,340 $0.13 $2,669.38 69.42 #DIV/0!0.0%
Sep-09 29 16,080 $0.13 $2,088.75 54.88 #DIV/0!0.0%
Oct-09 32 16,200 $0.13 $2,104.97 55.29 #DIV/0!0.0%
Nov-09 30 18,120 $0.12 $2,238.59 61.84 #DIV/0!0.0%
Dec-09 28 20,580 $0.11 $2,309.00 70.24 #DIV/0!0.0%
Jan-10 28 20,640 $0.11 $2,330.00 70.44 #DIV/0!0.0%
Feb-10 34 17,340 $0.11 $1,993.00 59.18 #DIV/0!0.0%
Mar-10 30 19,260 $0.10 $2,002.00 65.73 #DIV/0!0.0%
Apr-10 31 20,220 $0.10 $2,088.00 69.01 #DIV/0!0.0%
May-10 28 24,720 $0.11 $2,597.00 84.37 #DIV/0!0.0%
Jun-10 29 20,880 $0.11 $2,254.00 71.26 #DIV/0!0.0%
Jul-10 28 25,020 $0.11 $2,630.00 85.39 #DIV/0!0.0%
Aug-10 31 18,960 $0.11 $2,074.00 64.71 #DIV/0!0.0%
Sep-10 29 13,740 $0.12 $1,581.00 46.89 #DIV/0!0.0%
Oct-10 33 14,040 $0.11 $1,591.00 47.92 #DIV/0!0.0%
Nov-10 28 14,580 $0.11 $1,639.00 49.76 #DIV/0!0.0%
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
#DIV/0!0.00 #DIV/0!#DIV/0!
Montly Average 29.92 19375.00 0.00 #DIV/0!$2,375.47 $0.00 66.13 #DIV/0!#DIV/0!
Total 718 465,000 N/A N/A $57,011.18 $0.00 1,587.05 N/A N/A
Monthly Benchmark Occupancy Public Assembly ..............42.621567
% Difference Size 10,001 to 100,000 Square Feet 155.15%
Palmer Public Library
Energy Use Index Form 1
Electricity
Energy Audit Report
April 16, 2012
pg. 30
Gas Usage
Therms
Gas Cost $Gas Unit
Cost
$/Therm
Gas MMBtu
1,556.0 $1,628.73 $1.05 155.60
1,425.0 $1,483.16 $1.04 142.50
1,141.0 $1,189.97 $1.04 114.10
1,076.0 $1,122.86 $1.04 107.60
801.0 $838.96 $1.05 80.10
720.0 $755.34 $1.05 72.00
508.0 $536.90 $1.06 50.80
628.0 $660.88 $1.05 62.80
890.0 $939.00 $1.06 89.00
1,017.0 $1,062.80 $1.05 101.70
1,310.0 $1,365.51 $1.04 131.00
1,517.0 $1,579.38 $1.04 151.70
1,391.0 $1,204.73 $0.87 139.10
1,381.0 $1,196.15 $0.87 138.10
1,195.0 $1,036.68 $0.87 119.50
1,268.0 $1,122.90 $0.89 126.80
957.0 $842.25 $0.88 95.70
257.0 $235.52 $0.92 25.70
22.0 $36.00 $1.64 2.20
24.0 $29.00 $1.21 2.40
200.0 $269.58 $1.35 20.00
481.0 $494.65 $1.03 48.10
876.0 $815.00 $0.93 87.60
947.0 $875.00 $0.92 94.70
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
#DIV/0!0.00
899.50 $888.37 #DIV/0!89.95
21,588.00 $21,320.95 N/A 2158.80
29.0806
309.31%
Natural Gas
HDD CCD Production Btu/Sq. Ft Cost $/Sq
Ft
1664 18,833 $0.39
1662 17,518 $0.37
1400 15,065 $0.34
1340 13,686 $0.28
823 11,597 $0.27
445 11,673 $0.29
316 9,684 $0.26
171 14,202 $0.39
320 13,211 $0.30
507 13,057 $0.26
761 15,535 $0.29
1387 17,807 $0.32
1441 17,457 $0.29
1536 17,390 $0.29
1062 14,900 $0.25
1162 16,055 $0.26
797 13,735 $0.24
456 9,179 $0.24
328 6,126 $0.19
285 7,321 $0.22
288 7,064 $0.20
492 7,921 $0.17
875 11,301 $0.20
1174 12,046 $0.21
0 $0.00
0 $0.00
0 $0.00
0 $0.00
0 $0.00
0 $0.00
0 $0.00
0 $0.00
0 $0.00
0 $0.00
0 $0.00
0 $0.00
574.78 0.00 0.00 13,015 $0.27
20692.00 0.00 0.00 312,362 $6.53
6,458
201.52%
EUI
Energy Audit Report
April 16, 2012
pg. 31
Climate & Fuel Assumptions
Client Name:Palmer Public Library Address:
Square Footage 11992
Days
Occupied
per Year State HDD CDD
Avg.
Temp
365 Alaska 10,573 0 36.0
Fuels
Natural Gas $0.99 $ Per CCF $0.96 Per Therm
Oil $ Per Gallon $0.00 Per Therm
Electricity $0.12 $ per KWH $3.57 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 Kw/Month
City
Palmer IAS
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
Horsepower Motor
Loading
Efficiency KW Operating
Hours/yr
Yearly KW
Demand
Yearly KW
Demand
Cost
Yearly KWH
Consumption
Yearly KWH
Cost
Totals
Existing 3 80 80 2.24 8760 26.86 $0.00 19,605 $2,391.80 $2,391.80
Proposed 3 50 80 1.40 8760 16.79 $0.00 12,253 $1,494.87 $1,494.87
Savings 10.07 $0.00 7,352 $896.92 $896.92
Installed Cost $5,405.27
Payback (years)6.03
Description of Improvement
Motor #1
Replace (2) existing Grundfos UPS 50-160 circulation pump motors with equivalent variable speed, permanent magnet motors.
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$48-$ $2,392$2,440(1+i)^-nCostsCosts2,012$5,405$30-$ $1,495$1,525(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$5,405------$5,4051.00$5,405$5,4052,01304902,4562,5060.972,4332,432.66$ 2,01303101,5351,5660.971,520$6,926(4,493)$ 2,01405102,5232,5730.942,4264,858$ 2,01403201,5771,6080.941,516$8,442(3,583)$ 2,01505202,5912,6430.922,4197,277$ 2,01503301,6191,6520.921,512$9,954(2,676)$ 2,01605402,6612,7150.892,4129,689$ 2,01603401,6631,6970.891,507$11,461(1,772)$ 2,01705502,7432,7990.862,41412,103$ 2,01703501,7151,7490.861,509$12,970(867)$ 2,01805702,8282,8850.842,41614,520$ 2,01803601,7681,8030.841,510$14,48040$ 2,01905902,9162,9750.812,41916,939$ 2,01903701,8221,8590.811,512$15,992947$ 2,02006103,0063,0670.792,42119,360$ 2,02003801,8791,9170.791,513$17,5051,855$ 2,02106203,1003,1620.772,42321,783$ 2,02103901,9371,9760.771,515$19,0202,763$ 2,02206403,1963,2600.742,42624,209$ 2,02204001,9972,0370.741,516$20,5363,673$ 2,02306603,2953,3610.722,42826,637$ 2,02304102,0592,1010.721,518$22,0534,583$ 2,02406803,3973,4650.702,43029,067$ 2,02404302,1232,1660.701,519$23,5725,495$ 2,02507003,5023,5720.682,43331,500$ 2,02504402,1892,2330.681,520$25,0936,407$ 2,02607203,6113,6830.662,43533,935$ 2,02604502,2572,3020.661,522$26,6147,320$ 2,02707503,7803,8550.642,47436,409$ 2,02704702,3632,4090.641,546$28,1618,248$ 2,02807703,9584,0350.622,51438,923$ 2,02804802,4742,5220.621,571$29,7329,191$ 2,02907904,1444,2230.612,55541,478$ 2,02904902,5902,6390.611,597$31,32910,149$ 2,03008104,3394,4200.592,59644,075$ 2,03005102,7122,7630.591,623$32,95211,123$ 2,03108404,5434,6270.572,63946,713$ 2,03105202,8392,8920.571,649$34,60112,112$ 2,03208604,7564,8430.552,68149,395$ 2,03205402,9733,0270.551,676$36,27713,118$ 2,03308904,9805,0690.542,72552,119$ 2,03305603,1123,1680.541,703$37,98014,140$ 2,03409205,2145,3060.522,76954,888$ 2,03405703,2593,3160.521,731$39,71115,178$ 2,03509405,4595,5530.512,81457,702$ 2,03505903,4123,4710.511,759$41,46916,233$ 2,03609705,7165,8130.492,86060,562$ 2,03606103,5723,6330.491,787$43,25617,305$ 2,037010005,9846,0840.482,90663,468$ 2,03706303,7403,8030.481,816$45,07318,395$ 2,038010306,2656,3690.462,95366,421$ 2,03806403,9163,9800.461,846$46,91819,503$ 2,039010606,5606,6660.453,00169,422$ 2,03906604,1004,1660.451,876$48,79420,628$ 2,040010906,8686,9780.443,05072,472$ 2,04006804,2934,3610.441,906$50,70021,772$ 2,041011307,1917,3040.423,09975,571$ 2,04107004,4944,5650.421,937$52,63722,934$ 2,042011607,5297,6450.413,15078,721$ 2,04207304,7064,7780.411,969$54,60624,115$ Totals:$0$2,344$0$129,111$131,455$78,721=30-year LCCTotals:$5,405$1,465$0$80,694$87,565$54,606=30-year LCC
Energy Audit Report
April 16, 2012
pg. 35
ECM #2 Calculations
Space Description
Number of Fixtures 316 316
Lamps per Fixture 1 1
Lamp Type 4' T8 4' T8
Fixture Wattage 32 25
Hours on per Week 49 49
Cost of New Lamp $17.38
Cost of New Fixture
Total KWH Cost $3,143.38 $2,455.76
Total Demand Cost $0.00 $0.00
Total Yearly Cost $3,143.38 $2,455.76
Yearly Savings $687.61
Total Retrofit Cost $5,492.08
Payback Period 8.0 years
Four foot T8 fixtures throughout.
Retrofit Description Replace existing lamps in 4' T8 fixtures with 25w 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$63-$ $3,143$3,206(1+i)^-nCostsCosts2,012$5,492$49-$ $2,456$2,505(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$5,492------$5,4921.00$5,492$5,4922,01306503,2283,2930.973,1973,197.09$ 2,01305102,5222,5730.972,498$7,990(4,793)$ 2,01406703,3153,3820.943,1886,385$ 2,01405202,5902,6420.942,491$10,480(4,095)$ 2,01506903,4053,4740.923,1799,564$ 2,01505402,6602,7140.922,483$12,964(3,400)$ 2,01607103,4973,5680.893,17012,734$ 2,01605502,7322,7870.892,476$15,440(2,707)$ 2,01707303,6053,6780.863,17315,906$ 2,01705702,8172,8740.862,479$17,919(2,013)$ 2,01807503,7173,7920.843,17619,082$ 2,01805902,9042,9630.842,481$20,400(1,318)$ 2,01907703,8323,9100.813,17922,261$ 2,01906002,9943,0540.812,483$22,884(622)$ 2,02008003,9514,0310.793,18225,443$ 2,02006203,0873,1490.792,486$25,36974$ 2,02108204,0744,1560.773,18528,628$ 2,02106403,1823,2470.772,488$27,858770$ 2,02208404,2004,2840.743,18831,816$ 2,02206603,2813,3470.742,491$30,3481,468$ 2,02308704,3304,4170.723,19135,007$ 2,02306803,3833,4510.722,493$32,8412,166$ 2,02409004,4644,5540.703,19438,201$ 2,02407003,4883,5580.702,495$35,3362,864$ 2,02509204,6034,6950.683,19741,398$ 2,02507203,5963,6680.682,498$37,8343,564$ 2,02609504,7454,8400.663,20044,598$ 2,02607403,7073,7820.662,500$40,3344,264$ 2,02709804,9685,0660.643,25247,850$ 2,02707703,8823,9580.642,541$42,8754,975$ 2,028010105,2025,3030.623,30451,154$ 2,02807904,0644,1430.622,582$45,4565,698$ 2,029010405,4465,5500.613,35854,512$ 2,02908104,2554,3360.612,623$48,0806,432$ 2,030010705,7025,8090.593,41257,925$ 2,03008404,4554,5390.592,666$50,7467,179$ 2,031011005,9706,0810.573,46861,392$ 2,03108604,6644,7500.572,709$53,4557,937$ 2,032011406,2516,3640.553,52464,916$ 2,03208904,8844,9720.552,753$56,2088,708$ 2,033011706,5456,6620.543,58168,497$ 2,03309105,1135,2040.542,798$59,0059,492$ 2,034012006,8526,9730.523,63972,136$ 2,03409405,3535,4470.522,843$61,84810,288$ 2,035012407,1747,2980.513,69875,834$ 2,03509705,6055,7020.512,889$64,73811,097$ 2,036012807,5127,6390.493,75879,592$ 2,036010005,8685,9680.492,936$67,67411,919$ 2,037013207,8657,9960.483,81983,411$ 2,037010306,1446,2470.482,984$70,65712,754$ 2,038013608,2348,3700.463,88187,292$ 2,038010606,4336,5390.463,032$73,68913,603$ 2,039014008,6218,7610.453,94491,236$ 2,039010906,7356,8440.453,081$76,77114,466$ 2,040014409,0269,1700.444,00895,245$ 2,040011207,0527,1640.443,131$79,90215,343$ 2,041014809,4519,5990.424,07399,318$ 2,041011607,3837,4990.423,182$83,08416,234$ 2,042015309,89510,0480.414,139103,457$ 2,042011907,7307,8500.413,234$86,31817,139$ Totals:$0$3,081$0$169,682$172,763$103,457=30-year LCCTotals:$5,492$2,407$0$132,564$140,463$86,318=30-year LCC
Energy Audit Report
April 16, 2012
pg. 37
ECM #3 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 N/A
Proposed Natural Gas 95.00%70.0 $69,449.73
Heating Data
100
Volume Served
100
Description
of Retrofit
Boiler
Replace (2) existing Weil McLain Boilers with (2) 95% AFUE Boilers. This ECM
assumes boilers will need replaced in the next 20 years and has annulized that
$69,449.73Estimated Cost of Heating System
Replacements
New Heating SystemsExisting Heating Systems
10000 8,421.05
Estimated Demand Charges (electric)
Estimated Savings per Year
$0.00
$9,630.35
$1,520.58
$0.96
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 $8,109.77
Average AFUE of All Heating Systems,
proportional to volume 80.00%
Heating System Summary
$0.96
70
$0.00
95.00%
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$3,4729,630$ $0$13,102(1+i)^-nCostsCosts2,012$69,450$1628,110$ $0$8,272(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$69,450------$69,4501.00$69,450$69,4502,0133,5769,756013,3320.9712,94312,943.40$ 2,01301678,21508,3820.978,138$77,588(64,644)$ 2,01403,6839,882013,5660.9412,78725,730$ 2,01401728,32208,4940.948,006$85,594(59,864)$ 2,01503,79410,011013,8050.9212,63338,364$ 2,01501778,43008,6070.927,877$93,471(55,108)$ 2,01603,90810,141014,0490.8912,48250,846$ 2,01601838,54008,7220.897,750$101,221(50,375)$ 2,01704,02510,800014,8250.8612,78863,634$ 2,01701889,09509,2830.868,007$109,228(45,594)$ 2,01804,14611,502015,6480.8413,10576,739$ 2,01801949,68609,8800.848,274$117,503(40,763)$ 2,01904,27012,250016,5200.8113,43290,171$ 2,019019910,316010,5150.818,550$126,052(35,881)$ 2,02004,39813,046017,4440.7913,771103,942$ 2,020020510,986011,1920.798,835$134,887(30,945)$ 2,02104,53013,894018,4240.7714,121118,063$ 2,021021211,700011,9120.779,129$144,017(25,954)$ 2,02204,66614,797019,4630.7414,482132,545$ 2,022021812,461012,6790.749,434$153,451(20,906)$ 2,02304,80615,759020,5650.7214,857147,402$ 2,023022513,271013,4950.729,749$163,200(15,798)$ 2,02404,95016,783021,7340.7015,243162,645$ 2,024023114,133014,3650.7010,075$173,275(10,630)$ 2,02505,09917,874022,9730.6815,643178,289$ 2,025023815,052015,2900.6810,412$183,687(5,398)$ 2,02605,25219,036024,2880.6616,057194,346$ 2,026024516,030016,2760.6610,760$194,447(101)$ 2,02705,40920,997026,4060.6416,949211,295$ 2,027025317,681017,9340.6411,511$205,9585,336$ 2,02805,57223,159028,7310.6217,904229,199$ 2,028026019,503019,7630.6212,316$218,27410,925$ 2,02905,73925,545031,2830.6118,927248,126$ 2,029026821,511021,7790.6113,177$231,45116,675$ 2,03005,91128,176034,0870.5920,022268,148$ 2,030027623,727024,0030.5914,099$245,55022,598$ 2,03106,08831,078037,1660.5721,195289,344$ 2,031028426,171026,4550.5715,087$260,63728,706$ 2,03206,27134,279040,5500.5522,451311,795$ 2,032029328,867029,1600.5516,145$276,78235,013$ 2,03306,45937,810044,2690.5423,797335,592$ 2,033030231,840032,1420.5417,278$294,06041,532$ 2,03406,65341,704048,3570.5225,237360,829$ 2,034031135,119035,4300.5218,491$312,55048,278$ 2,03506,85246,000052,8520.5126,780387,608$ 2,035032038,737039,0570.5119,790$332,34055,268$ 2,03607,05850,738057,7960.4928,432416,040$ 2,036033042,727043,0560.4921,181$353,52162,519$ 2,03707,27055,964063,2330.4830,201446,241$ 2,037034047,127047,4670.4822,670$376,19170,049$ 2,03807,48861,728069,2160.4632,095478,336$ 2,038035051,981052,3310.4624,266$400,45777,878$ 2,03907,71268,086075,7980.4534,124512,459$ 2,039036057,336057,6960.4525,974$426,43186,028$ 2,04007,94475,099083,0430.4436,296548,755$ 2,040037163,241063,6120.4427,803$454,23594,520$ 2,04108,18282,834091,0160.4238,622587,377$ 2,041038269,755070,1370.4229,762$483,997103,380$ 2,04208,42791,366099,7930.4141,114628,491$ 2,042039476,940077,3330.4131,860$515,857112,634$ Totals:$0$170,137$960,093$0$1,130,231$628,491=30-year LCCTotals:$69,450$7,948$808,500$0$885,897$515,857=30-year LCC
Energy Audit Report
April 16, 2012
pg. 39
ECM #4 Calculations
Horsepower Motor
Loading
Efficiency KW Operating
Hours/yr
Yearly KW
Demand
Yearly KW
Demand
Cost
Yearly KWH
Consumption
Yearly KWH
Cost
Totals
Existing 10 70 81.5 6.41 4380 76.89 $0.00 28,064 $3,423.84 $3,423.84
Proposed 10 70 91.7 5.69 4380 68.34 $0.00 24,943 $3,043.00 $3,043.00
Savings 8.55 $0.00 3,122 $380.84 $380.84
Installed Cost $3,975.40
Payback (years)10.44
Description of Improvement
Motor #2
Replace existing 10hp air handler motor with motor having and efficiency of 91.7% or better.
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$68-$ $3,424$3,492(1+i)^-nCostsCosts2,012$3,975$61-$ $3,043$3,104(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$3,975------$3,9751.00$3,975$3,9752,01307103,5163,5870.973,4823,482.34$ 2,01306303,1253,1880.973,095$7,070(3,588)$ 2,01407303,6113,6840.943,4726,955$ 2,01406503,2103,2740.943,086$10,157(3,202)$ 2,01507503,7093,7840.923,46210,417$ 2,01506703,2963,3630.923,077$13,234(2,817)$ 2,01607703,8093,8860.893,45313,870$ 2,01606803,3853,4540.893,069$16,302(2,433)$ 2,01707903,9274,0060.863,45617,326$ 2,01707103,4903,5610.863,071$19,374(2,048)$ 2,01808204,0494,1300.843,45920,785$ 2,01807303,5983,6710.843,074$22,448(1,663)$ 2,01908404,1744,2580.813,46224,247$ 2,01907503,7103,7850.813,077$25,526(1,278)$ 2,02008704,3044,3900.793,46627,713$ 2,02007703,8253,9020.793,080$28,606(893)$ 2,02108904,4374,5260.773,46931,182$ 2,02107903,9434,0230.773,083$31,689(507)$ 2,02209204,5754,6670.743,47234,655$ 2,02208204,0664,1470.743,086$34,775(121)$ 2,02309504,7164,8110.723,47638,130$ 2,02308404,1924,2760.723,089$37,864266$ 2,02409804,8634,9600.703,47941,609$ 2,02408704,3224,4080.703,092$40,956653$ 2,025010105,0135,1140.683,48245,091$ 2,02508904,4564,5450.683,095$44,0511,040$ 2,026010405,1695,2720.663,48648,577$ 2,02609204,5944,6860.663,098$47,1491,428$ 2,027010705,4125,5180.643,54252,119$ 2,02709504,8104,9050.643,148$50,2971,822$ 2,028011005,6665,7760.623,59955,718$ 2,02809805,0365,1330.623,199$53,4962,222$ 2,029011305,9326,0450.613,65859,376$ 2,029010105,2725,3730.613,251$56,7472,629$ 2,030011706,2116,3280.593,71763,093$ 2,030010405,5205,6240.593,303$60,0503,043$ 2,031012006,5036,6230.573,77766,870$ 2,031010705,7805,8860.573,357$63,4073,463$ 2,032012406,8096,9320.553,83870,708$ 2,032011006,0516,1610.553,411$66,8193,890$ 2,033012707,1297,2560.543,90074,609$ 2,033011306,3366,4490.543,467$70,2854,323$ 2,034013107,4647,5950.523,96478,572$ 2,034011706,6346,7500.523,523$73,8084,764$ 2,035013507,8157,9500.514,02882,600$ 2,035012006,9457,0650.513,580$77,3885,212$ 2,036013908,1828,3210.494,09386,694$ 2,036012407,2727,3950.493,638$81,0265,668$ 2,037014308,5668,7100.484,16090,854$ 2,037012707,6137,7410.483,697$84,7236,130$ 2,038014808,9699,1170.464,22795,081$ 2,038013107,9718,1030.463,757$88,4806,601$ 2,039015209,3909,5430.454,29699,377$ 2,039013508,3468,4810.453,818$92,2987,079$ 2,040015709,8329,9890.444,366103,743$ 2,040013908,7388,8770.443,880$96,1797,564$ 2,0410161010,29410,4550.424,437108,179$ 2,041014309,1499,2920.423,943$100,1228,058$ 2,0420166010,77810,9440.414,509112,688$ 2,042014809,5799,7270.414,007$104,1298,559$ Totals:$0$3,356$0$184,822$188,177$112,688=30-year LCCTotals:$3,975$2,982$0$164,263$171,221$104,129=30-year LCCwith No ChangeImprovement Cost
Energy Audit Report
April 16, 2012
pg. 41
ECM #5 Calculations
Space Description
Number of Fixtures 8 8
Lamps per Fixture 2 2
Lamp Type 4' T 12 4' T8
Fixture Wattage 97.8 45.5
Hours on per Week 49 49
Cost of New Lamp
Cost of New Fixture $272.22
Total KWH Cost $243.21 $113.15
Total Demand Cost $0.00 $0.00
Total Yearly Cost $243.21 $113.15
Yearly Savings $130.06
Total Retrofit Cost $2,177.76
Payback Period 16.7 years
Replace existing T12 fixtures in Men's & Women's Bathrooms with
T8 fixtures with 25w lamps.
Retrofit Description
T12 fixtures in Men's and Women's Bath
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$5-$ $243$248(1+i)^-nCostsCosts2,012$2,178$2-$ $113$115(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$2,178------$2,1781.00$2,178$2,1782,0130502502550.97247247.37$ 2,0130201161190.97115$2,293(2,045)$ 2,0140502572620.94247494$ 2,0140201191220.94115$2,408(1,914)$ 2,0150502632690.92246740$ 2,0150201231250.92114$2,522(1,782)$ 2,0160502712760.89245985$ 2,0160301261280.89114$2,636(1,651)$ 2,0170602792850.862451,231$ 2,0170301301320.86114$2,750(1,520)$ 2,0180602882930.842461,476$ 2,0180301341370.84114$2,865(1,388)$ 2,0190602973020.812461,722$ 2,0190301381410.81114$2,979(1,257)$ 2,0200603063120.792461,969$ 2,0200301421450.79115$3,094(1,125)$ 2,0210603153220.772462,215$ 2,0210301471500.77115$3,208(993)$ 2,0220703253310.742472,462$ 2,0220301511540.74115$3,323(861)$ 2,0230703353420.722472,709$ 2,0230301561590.72115$3,438(729)$ 2,0240703453520.702472,956$ 2,0240301611640.70115$3,553(597)$ 2,0250703563630.682473,203$ 2,0250301661690.68115$3,668(465)$ 2,0260703673750.662483,451$ 2,0260301711740.66115$3,783(332)$ 2,0270803843920.642523,702$ 2,0270401791820.64117$3,900(198)$ 2,0280804024100.622563,958$ 2,0280401871910.62119$4,019(61)$ 2,0290804214290.612604,218$ 2,0290401962000.61121$4,14078$ 2,0300804414490.592644,482$ 2,0300402052090.59123$4,263219$ 2,0310904624700.572684,750$ 2,0310402152190.57125$4,388362$ 2,0320904844920.552735,023$ 2,0320402252290.55127$4,515508$ 2,0330905065150.542775,300$ 2,0330402362400.54129$4,643656$ 2,0340905305400.522825,581$ 2,0340402472510.52131$4,774807$ 2,03501005555650.512865,868$ 2,0350402582630.51133$4,908960$ 2,03601005815910.492916,158$ 2,0360502702750.49135$5,0431,115$ 2,03701006096190.482956,454$ 2,0370502832880.48137$5,1801,274$ 2,03801006376480.463006,754$ 2,0380502963010.46140$5,3201,434$ 2,03901106676780.453057,059$ 2,0390503103150.45142$5,4621,597$ 2,04001106987100.443107,369$ 2,0400503253300.44144$5,6061,763$ 2,04101107317430.423157,685$ 2,0410503403460.42147$5,7531,932$ 2,04201207667770.413208,005$ 2,0420503563620.41149$5,9022,103$ Totals:$0$238$0$13,129$13,367$8,005=30-year LCCTotals:$2,178$111$0$6,108$8,397$5,902=30-year LCC
Energy Audit Report
April 16, 2012
pg. 43
ECM #6 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 0.56 Window U-value 0.3
Wall Square Footage Wall Square Footage
Window Square Footage 415 Window Square Footage 415
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 0.5600 Composite U-value for entire assembly 0.3000
Composite R-Value for entire assembly 1.7857 Composite R-Value for entire assembly 3.3333
Heating System Served System 1 Heating System Served System 1
Heat Loss in BTU/h 7901.60 Heat Loss in BTU/h 4233.00Original
Heating
Proposed
Heating
Savings -
Original Heating
Savings -
Proposed Yearly Cost $833.24 7871.8 Yearly Cost $446.38 $375.90 $386.86 $325.78
Cost of Proposed Upgrade $16,332.14
Above Grade Wall - Original
Assembly 1 Assembly 1
Above Grade Wall - Proposed
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 CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2012$0833$ $0$833(1+i)^-nCostsCosts2012$16,332$0446$ $0$446(1+i)^-nCostsCosts2012$0------$01.00$0-$ 2012$16,332------$16,3321.00$16,332$16,3322013084408440.97819819.49$ 20130045204520.97439$16,771(15,952)$ 20140085508550.948061,625$ 20140045804580.94432$17,203(15,577)$ 20150086608660.927932,418$ 20150046404640.92425$17,628(15,209)$ 20160087708770.897803,198$ 20160047004700.89418$18,045(14,847)$ 20170093409340.868064,004$ 20170050105010.86432$18,477(14,473)$ 20180099509950.848334,837$ 20180053305330.84446$18,924(14,086)$ 2019001,06001,0600.818625,699$ 20190056805680.81462$19,385(13,686)$ 2020001,12901,1290.798916,590$ 20200060506050.79477$19,863(13,272)$ 2021001,20201,2020.779217,511$ 20210064406440.77494$20,356(12,845)$ 2022001,28001,2800.749538,464$ 20220068606860.74510$20,866(12,402)$ 2023001,36401,3640.729859,449$ 20230073007300.72528$21,394(11,945)$ 2024001,45201,4520.701,01810,468$ 20240077807780.70546$21,940(11,472)$ 2025001,54701,5470.681,05311,521$ 20250082808280.68564$22,504(10,983)$ 2026001,64701,6470.661,08912,610$ 20260088208820.66583$23,087(10,478)$ 2027001,81701,8170.641,16613,776$ 20270097309730.64625$23,712(9,936)$ 2028002,00402,0040.621,24915,024$ 2028001,07301,0730.62669$24,381(9,357)$ 2029002,21002,2100.611,33716,362$ 2029001,18401,1840.61716$25,097(8,736)$ 2030002,43802,4380.591,43217,794$ 2030001,30601,3060.59767$25,864(8,071)$ 2031002,68902,6890.571,53319,327$ 2031001,44101,4410.57822$26,686(7,359)$ 2032002,96602,9660.551,64220,969$ 2032001,58901,5890.55880$27,566(6,596)$ 2033003,27103,2710.541,75922,728$ 2033001,75301,7530.54942$28,508(5,780)$ 2034003,60803,6080.521,88324,611$ 2034001,93301,9330.521,009$29,517(4,906)$ 2035003,98003,9800.512,01726,628$ 2035002,13202,1320.511,080$30,597(3,969)$ 2036004,39004,3900.492,16028,787$ 2036002,35202,3520.491,157$31,754(2,967)$ 2037004,84204,8420.482,31331,100$ 2037002,59402,5940.481,239$32,993(1,893)$ 2038005,34105,3410.462,47733,576$ 2038002,86102,8610.461,327$34,319(743)$ 2039005,89105,8910.452,65236,228$ 2039003,15603,1560.451,421$35,740488$ 2040006,49806,4980.442,84039,068$ 2040003,48103,4810.441,521$37,2621,807$ 2041007,16707,1670.423,04142,110$ 2041003,83903,8390.421,629$38,8913,219$ 2042007,90507,9050.413,25745,366$ 2042004,23504,2350.411,745$40,6364,731$ Totals:$0$0$83,070$0$83,070$45,366=30-year LCCTotals:$16,332$0$44,502$0$60,834$40,636=30-year LCC
Energy Audit Report
April 16, 2012
pg. 45
ECM #7 Calculations
Space Description
Number of Fixtures 25 25
Lamps per Fixture 2 2
Lamp Type T8 U Bend T8 U Bend
Fixture Wattage 32 25
Hours on per Week 49 49
Cost of New Lamp $36.74
Cost of New Fixture
Total KWH Cost $248.68 $194.29
Total Demand Cost $0.00 $0.00
Total Yearly Cost $248.68 $194.29
Yearly Savings $54.40
Total Retrofit Cost $1,837.00
Payback Period 33.8 years
T8 U Bend fixtures.
Replace existing lamps in T8 U Bend fixtures with 25w lamps.Retrofit Description
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 CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2,012$5-$ $249$254(1+i)^-nCostsCosts2,012$1,837$4-$ $194$198(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$1,837------$1,8371.00$1,837$1,8372,0130502552610.97253252.93$ 2,0130402002040.97198$2,035(1,782)$ 2,0140502622680.94252505$ 2,0140402052090.94197$2,232(1,726)$ 2,0150502692750.92251757$ 2,0150402102150.92196$2,428(1,671)$ 2,0160602772820.892511,007$ 2,0160402162210.89196$2,624(1,617)$ 2,0170602852910.862511,258$ 2,0170502232270.86196$2,820(1,562)$ 2,0180602943000.842511,510$ 2,0180502302340.84196$3,016(1,507)$ 2,0190603033090.812511,761$ 2,0190502372420.81196$3,213(1,452)$ 2,0200603133190.792522,013$ 2,0200502442490.79197$3,410(1,397)$ 2,0210603223290.772522,265$ 2,0210502522570.77197$3,606(1,342)$ 2,0220703323390.742522,517$ 2,0220502602650.74197$3,803(1,286)$ 2,0230703433490.722522,770$ 2,0230502682730.72197$4,001(1,231)$ 2,0240703533600.702533,022$ 2,0240602762810.70197$4,198(1,176)$ 2,0250703643710.682533,275$ 2,0250602842900.68198$4,396(1,121)$ 2,0260803753830.662533,528$ 2,0260602932990.66198$4,593(1,065)$ 2,0270803934010.642573,786$ 2,0270603073130.64201$4,794(1,009)$ 2,0280804124200.622614,047$ 2,0280603223280.62204$4,999(952)$ 2,0290804314390.612664,313$ 2,0290603373430.61208$5,206(894)$ 2,0300804514600.592704,583$ 2,0300703523590.59211$5,417(835)$ 2,0310904724810.572744,857$ 2,0310703693760.57214$5,632(775)$ 2,0320904955040.552795,136$ 2,0320703863930.55218$5,849(714)$ 2,0330905185270.542835,419$ 2,0330704054120.54221$6,071(652)$ 2,03401005425520.522885,707$ 2,0340704244310.52225$6,296(589)$ 2,03501005685770.512936,000$ 2,0350804434510.51229$6,524(525)$ 2,03601005946040.492976,297$ 2,0360804644720.49232$6,756(460)$ 2,03701006226330.483026,599$ 2,0370804864940.48236$6,992(393)$ 2,03801106516620.463076,906$ 2,0380805095170.46240$7,232(326)$ 2,03901106826930.453127,218$ 2,0390905335410.45244$7,476(258)$ 2,04001107147250.443177,535$ 2,0400905585670.44248$7,724(189)$ 2,04101207487590.423227,857$ 2,0410905845930.42252$7,976(118)$ 2,04201207837950.413278,185$ 2,0420906126210.41256$8,231(47)$ Totals:$0$244$0$13,424$13,668$8,185=30-year LCCTotals:$1,837$190$0$10,488$12,515$8,231=30-year LCC
Energy Audit Report
April 16, 2012
pg. 47
ECM #8 Calculations
Incoming Water Temperature 40
System 1 - Location Served:
Fuel Type AFUE Thermostat
Setpoint
Full Load KW
(Electric Only)
Mo/Yr Operation
(Electric Only)Cost
Existing Natural Gas 70.00%120.0 N/A
Proposed Natural Gas 95.00%120.0 $4,504.79
Domestic Water Heating Data
Gallons Hot
Water/yr
83,403
83,403
Description
of Retrofit
Remove domestic hot water tank and replace with indirect fired boiler mate. Assumes
using proposed high efficeincy boilers. Also assumes that existing water tank will be
Existing Proposed
$0.00 $0.00
N/A $201.22
794.00 585.05
Average Cost Per Therm of Heating Fuels;
proportional
Average Thermostat Setpoint; proportional
Estimated Cost over 1 year $764.65
Estimated Cost of Replacements $4,504.79
120
Estimated Demand Charges (electric)
70.00%95.00%
$0.96 $0.96
120
Estimated Yearly Savings
Domestic Water Heating System Summary
Average AFUE of Domestic Hot Water
Systems; proportional
$563.42
Therms required for Domestic Hot Water
over 1 year
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 CostsCostsCostsCostsCostsFactorAnnualCumulativeCostsCostsCostsCostsCostsFactorAnnualCumulativeSavings2,012$114765$ $0$879(1+i)^-nCostsCosts2,012$4,505$90563$ $0$654(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$4,505------$4,5051.00$4,505$4,5052,01311777508920.97866865.99$ 2,01309357106640.97644$5,149(4,283)$ 2,014012178509060.948541,720$ 2,01409657806740.97654$5,803(4,084)$ 2,015012579509190.928412,561$ 2,01509858606840.97664$6,467(3,906)$ 2,016012880509330.898293,390$ 2,016010159306950.97674$7,142(3,752)$ 2,017013285809900.868544,244$ 2,017010463207360.97715$7,857(3,613)$ 2,018013691301,0490.848795,123$ 2,018010867307810.97758$8,614(3,492)$ 2,019014097301,1130.819056,028$ 2,019011171708270.97803$9,418(3,390)$ 2,02001441,03601,1800.799326,959$ 2,020011476308770.97852$10,270(3,310)$ 2,02101491,10301,2520.779597,919$ 2,021011881309300.97903$11,173(3,254)$ 2,02201531,17501,3280.749888,907$ 2,022012186609870.97958$12,131(3,224)$ 2,02301581,25101,4090.721,0189,925$ 2,023012592201,0470.971,016$13,147(3,222)$ 2,02401621,33301,4950.701,04910,973$ 2,024012898201,1100.971,078$14,225(3,252)$ 2,02501671,41901,5870.681,08012,054$ 2,02501321,04601,1780.971,144$15,369(3,315)$ 2,02601721,51101,6840.661,11313,167$ 2,02601361,11401,2500.971,214$16,583(3,416)$ 2,02701781,66701,8450.641,18414,351$ 2,02701401,22801,3690.971,329$17,911(3,560)$ 2,02801831,83902,0220.621,26015,611$ 2,02801451,35501,5000.971,456$19,367(3,756)$ 2,02901882,02802,2170.611,34116,952$ 2,02901491,49401,6430.971,596$20,963(4,011)$ 2,03001942,23702,4310.591,42818,380$ 2,03001531,64801,8020.971,749$22,712(4,332)$ 2,03102002,46802,6670.571,52119,901$ 2,03101581,81801,9760.971,919$24,631(4,730)$ 2,03202062,72202,9280.551,62121,522$ 2,03201632,00502,1680.972,105$26,736(5,214)$ 2,03302123,00203,2140.541,72823,250$ 2,03301682,21202,3800.972,310$29,046(5,796)$ 2,03402183,31103,5300.521,84225,092$ 2,03401732,44002,6130.972,536$31,583(6,491)$ 2,03502253,65203,8770.511,96527,057$ 2,03501782,69102,8690.972,785$34,368(7,312)$ 2,03602324,02904,2600.492,09629,152$ 2,03601832,96803,1520.973,060$37,428(8,276)$ 2,03702394,44404,6820.482,23631,388$ 2,03701893,27403,4630.973,362$40,790(9,401)$ 2,03802464,90105,1470.462,38733,775$ 2,03801943,61103,8060.973,695$44,485(10,710)$ 2,03902535,40605,6590.452,54836,323$ 2,03902003,98304,1830.974,062$48,546(12,224)$ 2,04002615,96306,2240.442,72039,043$ 2,04002064,39404,6000.974,466$53,012(13,969)$ 2,04102696,57706,8460.422,90541,948$ 2,04102124,84605,0590.974,911$57,923(15,976)$ 2,04202777,25407,5310.413,10345,050$ 2,04202195,34505,5640.975,402$63,325(18,275)$ Totals:$0$5,584$76,231$0$81,815$45,050=30-year LCCTotals:$4,505$4,415$56,170$0$65,090$63,325=30-year LCC
Energy Audit Report
April 16, 2012
pg. 49
ECM #9 Calculations
Space Description
Number of Fixtures 15 15
Lamps per Fixture 2 2
Lamp Type T12 T8
Fixture Wattage 97.8 45.5
Hours on per Week 1 1
Cost of New Lamp
Cost of New Fixture $271.22
Total KWH Cost $9.31 $4.33
Total Demand Cost $0.00 $0.00
Total Yearly Cost $9.31 $4.33
Yearly Savings $4.98
Total Retrofit Cost $4,068.30
Payback Period 817.4 years
Replace existing T12 fixtures in 2nd Floor, Boiler Room, Fan Room
with T8 fixtures with 25w lamps.
2nd Floor, Boiler Room, Fan Room
Retrofit Description
Energy Audit Report
April 16, 2012
pg. 50
---------------------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$0-$ $9$9(1+i)^-nCostsCosts2,012$4,068$0-$ $4$4(1+i)^-nCostsCosts2,012$0------$01.00$0-$ 2,012$4,068------$4,0681.00$4,068$4,0682,01300010100.9799.47$ 2,013000450.974$4,073(4,063)$ 2,01400010100.94919$ 2,014000550.944$4,077(4,058)$ 2,01500010100.92928$ 2,015000550.924$4,081(4,053)$ 2,01600010110.89938$ 2,016000550.894$4,086(4,048)$ 2,01700011110.86947$ 2,017000550.864$4,090(4,043)$ 2,01800011110.84956$ 2,018000550.844$4,095(4,038)$ 2,01900011120.81966$ 2,019000550.814$4,099(4,033)$ 2,02000012120.79975$ 2,020000560.794$4,103(4,028)$ 2,02100012120.77985$ 2,021000660.774$4,108(4,023)$ 2,02200012130.74994$ 2,022000660.744$4,112(4,018)$ 2,02300013130.729104$ 2,023000660.724$4,117(4,013)$ 2,02400013130.709113$ 2,024000660.704$4,121(4,008)$ 2,02500014140.689123$ 2,025000660.684$4,125(4,003)$ 2,02600014140.669132$ 2,026000770.664$4,130(3,998)$ 2,02700015150.6410142$ 2,027000770.644$4,134(3,993)$ 2,02800015160.6210151$ 2,028000770.625$4,139(3,987)$ 2,02900016160.6110161$ 2,029000880.615$4,143(3,982)$ 2,03000017170.5910171$ 2,030000880.595$4,148(3,977)$ 2,03100018180.5710182$ 2,031000880.575$4,153(3,971)$ 2,03200019190.5510192$ 2,032000990.555$4,158(3,966)$ 2,03300019200.5411203$ 2,033000990.545$4,163(3,960)$ 2,03400020210.5211214$ 2,0340009100.525$4,168(3,954)$ 2,03500021220.5111225$ 2,03500010100.515$4,173(3,948)$ 2,03600022230.4911236$ 2,03600010110.495$4,178(3,942)$ 2,03700023240.4811247$ 2,03700011110.485$4,183(3,936)$ 2,03800024250.4611258$ 2,03800011120.465$4,189(3,930)$ 2,03900026260.4512270$ 2,03900012120.455$4,194(3,924)$ 2,04000027270.4412282$ 2,04000012130.446$4,199(3,918)$ 2,04100028280.4212294$ 2,04100013130.426$4,205(3,911)$ 2,04200029300.4112306$ 2,04200014140.416$4,211(3,904)$ Totals:$0$9$0$502$512$306=30-year LCCTotals:$4,068$4$0$234$4,306$4,211=30-year LCC
Energy Audit Report
April 16, 2012
pg. 51
Cost Data
Energy Audit Report
April 16, 2012
pg. 52
Energy Audit Report
April 16, 2012
pg. 53