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510 Thornall Street, Suite 170 Edison, NJ 08837 Phone: 732-590-0122 Fax: 732-590-0129 Energy Audit Prepared For: Township of Willingboro Contact: Cedric Minter Facilities Supervisor Prepared By: Dome Tech, Inc. Prepared Under the Guidelines of the State of NJ Local Government Energy Audit Program December 2010
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Page 1: Energy Audit - s3.amazonaws.comEnergy+Audit+Report.FINAL.pdfManagement System (BMS), ... Hall/Dormitory, Retail Store, Supermarket, Warehouse ... Energy Audit Purpose & Scope Purpose:

510 Thornall Street, Suite 170

Edison, NJ 08837

Phone: 732-590-0122

Fax: 732-590-0129

Energy Audit

Prepared For:

Township of Willingboro

Contact: Cedric Minter

Facilities Supervisor

Prepared By:

Dome – Tech, Inc.

Prepared Under the Guidelines of the State of NJ Local Government Energy Audit Program

December 2010

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510 Thornall Street, Suite 170Edison, NJ 08837

Tel: 732.590.0122Fax: 732.590.0129

www.dome-tech.com

Commissioning HVAC Performance Testing Energy Audits Project Management

Retro-Commissioning Facility Management Consulting Energy Procurement

TOWNSHIP OF WILLINGBOROENERGY AUDIT REPORT

TABLE OF CONTENTS

1. Executive Summary

2. ECM Summary By Payback

3. Energy Audit Report Energy Audit Purpose & Scope Historic Energy Consumption Facility Description Greenhouse Gas Emissions Reduction Energy Conservation Measures Renewable/Distributed Energy Measures Energy Procurement Notes and Assumptions Operations & Maintenance Next Steps

4. Appendix Portfolio Manager/Energy Star Facilities Total Annual Energy Use Equipment & Lighting Inventory Lists ECM Lists ECM Costs & Calculations Renewables Calculations

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510 Thornall Street, Suite 170 Edison, NJ 08837

Tel: 732.590.0122 Fax: 732.590.0129

www.dome-tech.com

Commissioning HVAC Performance Testing Energy Audits Project Management

Retro-Commissioning Facility Management Consulting Energy Procurement

December 22, 2010 Mr. Cedric Minter, Facilities Supervisor Township of Willingboro 1 Salem Road Willingboro, New Jersey 08046 Re: EXECUTIVE SUMMARY FOR TOWNSHIP OF WILLINGBORO STATE OF NEW JERSEY LOCAL GOVERNMENT ENERGY AUDIT Dear Mr. Minter: Dome-Tech was retained by the Township of Willingboro, as a pre-qualified participant in the Local Government Energy Audit Program, to perform an energy audit. The objective of the energy audit was to evaluate the borough’s energy consumption, establish baselines for energy efficiency and identify opportunities to reduce the amount of energy used and/or its cost. The scope of the audit is standardized under the Program, and consisted of the following:

Benchmarking historic energy consumption utilizing EPA Energy Star’s Portfolio Manager

Characterizing building use, occupancy, size, and construction

Providing a detailed equipment list including estimated service life and efficiency

Identifying and quantifying energy conservation measures (ECMs)

Evaluating the economic viability of various renewable/distributed energy technologies

Performing a utility tariff analysis and assessing savings potential from energy procurement strategies

Providing the method of analyses Based upon revised data received for the period September 2009 – August 2010, the Township had an annual expenditure of:

Electricity: 1,621,203 kWh at a total cost of $264,378.21

Natural Gas: 122,792 therms at a total cost of $134,046.10 The following eight (8) buildings were evaluated:

Willingboro Municipal Building at 1 Salem Road, Willingboro, NJ – 31,130 SF

Emergency Squad/ Fire Station #161 at 398 Charleston Road, Willingboro, NJ – 7,560 SF

Fire Station #162 at 201 Sunset Road, Willingboro, NJ – 7,500 SF

Fire Station #163 at 603 Beverly Rancocas Road, Willingboro, NJ – 8,344 SF

Kennedy Center at 429 John F. Kennedy Way, Willingboro, NJ – 189,950 SF

Willingboro Public Library at 200 Willingboro Way, Willingboro, NJ – 45,000 SF

Public Works Garage #1 at 25 Industrial Drive, Willingboro, NJ – 6,004 SF

Public Works Garage #2 at 25 Industrial Drive, Willingboro, NJ – 5,490 SF Please refer to Section 2 of this report for a detailed list of identified Energy Conservation Measures (ECMs), along with a summary of their preliminary economics (estimated project cost, estimated annual energy savings, applicable rebate(s), etc.) In this report, all identified ECMs are ranked and presented

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“Building Performance - Delivered”

according to their simple payback; however, please note that the master ECM table can also be sorted by building, by measure type, etc. If all identified ECMs were to be implemented, they would provide the following estimated benefits to Township of Willingboro:

Total annual electrical savings: 790,775 kilowatt-hours; 48%

Total annual natural gas savings: 42,355 therms of natural gas usage; 34%

Total annual cost savings: $167,715; 42%

Total annual CO2 emissions reduction: 509 tons

Total net estimated implementation cost: $722,425

Total average simple payback: 4.3 years The projects that are recommended for implementation (at all facilities) include: Upgrading the Building Management System (BMS), upgrading the lighting, installing vending machine power management devices, and implementing energy awareness programs. The Township’s data was entered into the US EPA ENERGY STAR’s Portfolio Manager database program. Buildings with scores of 75 or higher may qualify for the ENERGY STAR Building Label. The buildings were not eligible for an Energy Star score. The average Source EUI was provided as an alternate to the Energy Star score. In order to receive an Energy Star rating, more than 50% of your building must be defined by one of the following space types: Bank/Financial Institution, Courthouse, Hospital (Acute Care and Children's), Hotel, K-12 School, Medical Office, Office, Residence Hall/Dormitory, Retail Store, Supermarket, Warehouse (Refrigerated and Non-refrigerated), Wastewater Treatment Plant, or Data Center. Please see the report for individual facility information. Distributed/Renewable Energy Systems were reviewed with the following conclusions:

Dome-Tech considered three different types of wind turbine technologies that consisted of both building-mounted and traditional ground-mounted variety. Due to attractive payback and high potential for energy reduction, the 50 kilowatt ground mounted wind turbine project appears to be the most attractive option. Should Township of Willingboro decide to pursue a wind turbine project, Dome-Tech recommends commissioning a more detailed study.

A roof-mounted 2- 275 kw dc photovoltaic system that could provide 7 - 100% per building of the Township’s annual energy usage was assessed for implementation.

CHP (Combined Heat and Power), Fuel Cells, and Micro-turbines were also researched, but are not recommended due to the lack of thermal requirements in the summertime.

Regarding the procurement of utilities, Dome-Tech understands that the Township of Willingboro facilities are served by eight electric accounts behind PSE&G, under rate classes General Lighting and Power Service (GLP). Dome-Tech understands that Township of Willingboro has Annual and Monthly General Service Fixed Price accounts that are currently not contracted with a retail energy supplier. The Borough is also served by eight natural gas accounts behind PSE&G, Large Volume Gas (LVG) and General Service Gas (GSGH & GSL) rate classes. Now is an ideal time to seek longer-term rate stability through a fixed price arrangement through a retail supplier.

During the development of this audit, Dome-Tech was assisted by facility personnel, who were both knowledgeable and very helpful to our efforts. We would like to acknowledge and thank those individuals. Sincerely, Bang Duong Energy Engineer

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Energy Audit Purpose & Scope

Purpose:

The objectives of the energy audit are to evaluate the site’s energy consumption,

establish baselines for energy consumption and identify opportunities to reduce the

amount of energy used and/or its cost.

Scope:

I. Historic Energy Consumption: Benchmark energy use using Energy Star Portfolio

Manager

II. Facility Description: characterize building usage, occupancy, size and construction.

III. Equipment Inventory: detailed equipment list including useful life and efficiency.

IV. Energy Conservation Measures: Identify and evaluate opportunities for cost savings and

economic returns.

V. Renewable/Distributed Energy Measures: evaluate economic viability of various

renewable/distributed energy technologies.

VI. Energy Purchasing and Procurement Strategies: perform utility tariff analysis and assess

potential for savings from energy procurement strategies.

VII.Method of Analysis: Appendices

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Historic Energy Consumption – Revised

Utility Usage and Costs Summary Time-period: Sept. 2009 – Aug. 2010

Please see Appendix for full utility data and consumption profiles for all buildings.

Note: Dome-Tech revised using the correct account numbers and utility data from PSE&G and Willingboro

Township. Assumptions for calculations made in the Draft & approved report remain the same.

AccountAnnual

ConsumptionAnnual Cost $ / kWh Account

Annual

Consumptio

n

Annual Cost $ / Therm

kWh Therms

65 176 569 01 249,704 $38,469.76 $0.154 65 176 569 01 11,299 $13,604.93 $1.204

67 570 806 01 5,784 $987.63 $0.171

66 520 019 18 210,800 $33,167.31 $0.157 66 520 019 18 10,596 $12,509.80 $1.181

66 911 178 08 7,026 $2,026.95 $0.288 66 911 178 08 1,850 $2,220.23 $1.200

65 405 928 09 19,728 $3,793.38 $0.192 65 405 928 09 2,943 $3,483.49 $1.184

42 006 830 08 1,027,200 $164,241.47 $0.160 42 006 830 08 63,948 $69,846.95 $1.092

42 006 830 08 5,413 $4,431.33 $0.819

67 063 721 02 83,261 $16,829.15 $0.202 69 267 230 01 14,478 $14,268.25 $0.986

65 477 438 02 16,104 $3,280.68 $0.204 65 477 438 02 5,578 $6,253.90 $1.121

68 666 509 09 1,596 $1,581.88 $0.991 68 666 509 09 6,687 $7,797.44 $1.166

TOTAL 1,621,203 $264,378.21 $0.163 TOTAL 122,792 $134,046.10 $1.092

.

Willingboro Public Works Garage #2

Willingboro Fire Station #162

Willingboro Fire Station #163

Kennedy CenterNA

Willingboro Public Library

Willingboro Public Works Garage #1

Buildings

Electric -PSEG Natural Gas - PSEG

Willingboro Municipal Complex NA

Willingboro Fire Station #161*

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Historic Energy Consumption - Revised

ENERGY STAR SCORES

Energy Star Score is calculated to establish a facility-specific energy intensity baseline.

Energy Star can be used to compare energy consumption to other similar facilities and to gauge the

success of energy conservation and cost containment efforts.

Buildings with an Energy Star rating/score of 75, or above, are eligible to apply for an official Energy Star

label. Willingboro’s facilities are ineligible to receive a rating. In order to receive a rating, more than 50%

of your building must be defined by one of the following space types: Bank/Financial Institution,

Courthouse, Hospital (Acute Care and Children's), Hotel, K-12 School, Medical Office, Office, Residence

Hall/Dormitory, Retail Store, Supermarket, Warehouse (Refrigerated and Non-refrigerated), Wastewater

Treatment Plant, or Data Center. None of the Township’s facilities fit within these classifications.

Facility Name

Total Floor

Area

Energy Star

Score

Eligible to

Apply for

ENERGY STAR

Current Site

Energy Intensity

(kBtu/SF)

Current Source

Energy Intensity

(kBtu/SF)

Average

Source EUI by

Building Type

*

Willingboro Municipal Complex Building 31,130 NA NA 78.8 179.7 265 - Public

Emergency Squad / Fire Station #161 7,560 NA NA 243.4 4711 157 - Fire

Willingboro Fire Station #162 7,500 NA NA 27.6 36.1 157 - Fire

Willingboro Fire Station #163 8,344 NA NA 44.6 64.7 157 - Fire

Kennedy Center 189,950 NA NA 56.4 100.6 265 - Public

Willingboro Public Library 45,000 NA NA 37.9 54.6 246 - Library

Willingboro Public Works Garage #1 6,004 NA NA 105.9 131.7 150 - Service

Willingboro Public Works Garage #2 5,490 NA NA 126.5 134.7 150 - Service

* Note for Average Source EUI: This data comes from the 2003 CBECS National Average Source and Site Energy Use and Performance Comparisions by Building Type.

This is Average EUI is used only w here Portfolio Manager does not have the building category list

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Historic Energy Consumption (continued)

Portfolio Manager Sign - In

An account has been created for Township of Willingboro in Portfolio Manager. You

have received an email to notify you of the generation of this account and shared

access with Dome-Tech. Please use this to read your facility information. Please feel

free to alter this information when the report is finalized. We would ask that you leave

the sign-in information alone until then. Your Township’s information is currently

shared as read only.

When the report is finalized the shared access will be changed so you can use / edit

the information and change as you wish.

Website link to sign-in:https://www.energystar.gov/istar/pmpam/index.cfm?fuseaction=login.Login

Username: Willingboro

Password: DTWillingboro

Email for account: [email protected]

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Building Name: Fire Station 161

Address: 398 Charleston Road

Willingboro, NJ 08046

Gross Floor Area: 7,560 sf

Year Built: 1969

# Occupants: Approximately 6 persons per 8 hour shift

Usage: Fire House

Construction Features:

Facade: One story concrete building, in good condition

Roof Type: Flat, white, metal deck, built-up, shingle, in good condition

Windows: Covering approximately 10% of façade, metal frame, dual pane, operable, shades, in

good condition

Exterior Doors: Six fiberglass bay doors, in good condition

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Major Mechanical Systems – Firehouse 161

Air Handlers / AC Systems / Ventilation Systems

One (1) Rheem AHU (1450 CFM)equipped with Direct Expansion (DX) Cooling (4 tons) and indirect fired

natural gas heat

One (1) Rheem AHU (2900 CFM)equipped with DX Cooling (7.5 tons) and indirect fired natural gas heat

One (1) Rheem AHU (1370 CFM)equipped with DX Cooling (3.5 tons) and electric heat

One (1) Sanyo Split AC Unit (1000 CFM)equipped with DX Cooling (2 tons) and electric heat

Boilers / Heating Equipment

Four (4) Weil McLain natural gas hot water boilers (346 MBH); at ASHRAE estimated service life (ESL)

of 20 years.

Six (6) heating hot water unit heaters (manufacturer unknown)

Domestic Hot Water Systems

One (1) Bradford White 50 gallon domestic hot water heater

Other Mechanical Equipment

Three (3) residential refrigerators (manufacturer unknown)

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Building Name: Firehouse 162

Address: 201 Sunset Road

Willingboro, NJ 08046

Gross Floor Area: 8,344 sf

Year Built: 1962

# Occupants: Unoccupied

Usage: Firehouse Storage, Gym for Police Dept.

Construction Features:

Facade: One story, brick, block, and stucco

Roof Type: Flat, black, rubber roof, in good condition

Windows: Covering approximately 10% of façade, dual pane, metal frame, operable,

shades/blinds, in good condition

Exterior Doors: Three fiberglass bay doors, metal frame, in new condition

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Major Mechanical Systems – Firehouse 162

Boilers

Two (2) Weil McLain natural gas hot water boilers (421 MBH); 14 years remaining per

ASHRAE estimated service life (ESL) of 20 years. These boilers provide heating hot

water to the units heaters.

Domestic Hot Water Systems

One (1) Kenmore 40 gallon domestic hot water heater

Two (2) hot water unit heaters (manufacturer unknown)

Chillers, Cooling Towers, Air Conditioners, and other Cooling Equipment

One (1) Sanyo 2 ton electric split system AC unit equipped with DX Cooling (2 tons) and

electric heat (1000 CFM); past ESL

Three (3) window air conditioning units (various brands)

Other Mechanical Equipment

One (1) air compressor (manufacturer unknown)

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Building Name: Firehouse 163

Address: 603 Beverly Rancocas Road

Willingboro, NJ 08046

Gross Floor Area: 7,500 sf

Year Built: 1980

# Occupants: Unoccupied

Usage: Firehouse

Construction Features:

Facade: One story, stucco, in good condition

Roof Type: Flat, black, metal deck, built-up, rubber, in good condition

Windows: Covering approximately 5% of façade, wood frame, operable, single pane, in fair

condition

Exterior Doors: Metal frame, single pane glass entry doors in fair condition, fiberglass bay doors (new)

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Major Mechanical Systems – Firehouse 163

Air Handlers / AC Systems / Ventilation Systems

One (1) Rheem Roof Top Unit (RTU) equipped with DX Cooling (4 tons) and electric heat

(1450 CFM)

Boilers

Two (2) natural gas unit heaters (manufacturer unknown)

Domestic Hot Water Systems

One (1) HB Smith natural gas hot water heater

One (1) Rheem natural gas hot water heater

Other Mechanical Equipment

One (1) 6 HP air compressor (manufacturer unknown)

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Building Name: The Kennedy Center

Address: 429 John F. Kennedy Way

Willingboro, NJ 08046

Gross Floor Area: 189,950 sf

Year Built: 1963

# Occupants: 28 employees, 1000 transient visitors daily

Usage: Recreational Facility open to the

public and is operated 8 AM – 10 PM Weekdays, 8AM – 4 PM Weekends

Construction Features:

Facade: Two story, brick, in good condition

Roof Type: Flat, black, metal deck, built-up, in good condition

Windows: Covering approximately 30% of façade, metal frame, single pane, operable, in fair

condition

Exterior Doors: Wood and metal frame, single pane glass doors, in fair condition due to age

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Major Mechanical Systems – Kennedy Center

Air Handlers / AC Systems / Ventilation Systems

Eight (8) Rheem Roof Top Units (RTUs) (5700 CFM);equipped with DX Cooling (15 tons)

and natural gas heat (302 kBTU)

One (1) Rheem RTU equipped with DX Cooling (10 tons) and natural gas heat (200 kBTU)

(3600 CFM);

Three (3) Rheem RTUs equipped with DX Cooling (20 tons) and natural gas heat (324

kBTU) (7500 CFM);

Two (2) Rheem RTUs equipped with DX Cooling (8.5 tons) and natural gas heat (182 kBTU)

(3200 CFM);

Two (2) Rheem RTUs equipped with DX Cooling (20 tons) and natural gas heat (324 kBTU)

(7500 CFM)

Two (2) Carrier RTUs equipped with DX Cooling (25 tons) and natural gas heat (291 kBTU)

(9000 CFM);

One (1) Carrier RTU equipped with DX Cooling (15 tons) and electric heat (5700 CFM);

One (1) Lennox RTU equipped with DX Cooling (6.5 tons) and electric heat (2100 CFM);

One (1) Trane RTU equipped with DX Cooling (15 tons) and natural gas heat (175 kBTU)

(5700 CFM);

One (1) Trane RTU equipped with DX Cooling (8.5 tons) and natural gas heat (150 kBTU)

(3200 CFM);

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Major Mechanical Systems – Kennedy Center (continued)

Boilers / Heating Equipment

Three (3) Cleaver Brooks dual-fuel fire-tube heating hot water boilers (6275 MBH); 15 years past

ASHRAE estimated service life (ESL) of 30 years; serving radiant finned tube heating; and served

by three (3) Weinman 2 HP feed pumps and two (2) 20 HP hot water supply pumps

Domestic Hot Water

One (1) Ruud 100 gallon natural gas domestic hot water heater

One (1) Old Dominion 2350 gallon natural gas hot water storage tank

One (1) I-R 7.5 HP pump

One (1) Quincy 2 HP pump

Other Mechanical Equipment

One (1) Onan 25KW emergency generator

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Building Name: Willingboro Library

Address: 200 Willingboro Way

Willingboro, NJ 08046

Gross Floor Area: 45,000 sf

Year Built: 2001

# Occupants: 30 employees, transient visitors

Usage: Public Library, operated

approximately 64 hours per week

Construction Features:

Facade: One story, brick, in excellent condition

Roof Type: Flat, white, metal deck, built-up, rubber, in good condition

Windows: Covering approximately 30% of façade, metal frame, dual pane, operable, in good

condition

Exterior Doors: Approximately four, metal frame, dual pane glass, in good condition

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Major Mechanical Systems – Public Library

Air Handlers / AC Systems / Ventilation Systems

One (1) Carrier Air Handling Unit (AHU), equipped with chilled and heating hot water coils(10,000 CFM)

Two (2) Carrier AHUs, equipped with chilled and heating hot water coils (8500 CFM)

Eight (8) exhaust fans (manufacturer unknown)

Domestic Hot Water Systems

One (1) AO Smith 80 gallon electric domestic hot water heater

Chillers / Cooling Towers / Air Conditioning Units / Other Cooling Equipment

One (1) Broad 1700 MBH packaged absorption chiller (100 tons)

One (1) Evapco cooling tower equipped with a 15 HP fan motor

One (1) Samsung 2 ton split a/c unit

Compressors / Pumps/ Motor Driven Equipment

Two (2) Taco 2 HP hot water, two Taco (2) 5 HP chilled water pumps, and two Taco (2) 2HP condenser

pumps

One (1) US Motor 1 HP cooling tower pump

Other Mechanical Equipment

One (1) small compressor (manufacturer unknown)

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Building Name: Municipal Complex

Address: 1 Salem Road

Willingboro, NJ 08046

Gross Floor Area: 31,130 sf

Year Built: 1966

# Occupants: 120 employees,

transient visitors

Usage: Complex is operated 24/7

Construction Features:

Facade: Three stories, brick, in good condition

Roof Type: Flat, white, metal deck, built-up, rubber, in good condition

Windows: Covering approximately 10% of façade, metal frame, single pane, operable, in fair

condition

Exterior Doors: Approximately four, single and dual pane(new wing) mix

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Facility Information

Major Mechanical Systems – Municipal ComplexAir Handlers / AC Systems / Ventilation Systems

Three (3) Trane Roof Top Units (RTUs) equipped with DX Cooling (5 tons) and natural gas heat (130

kBTU) (1450 CFM);

One (1) Trane RTU equipped with DX Cooling (7.5 tons) and natural gas heat (150 kBTU) and natural

gas heat (2900 CFM);

One (1) McQuay RTU equipped with DX Cooling (4 tons) and natural gas heat (81 kBTU) (1450 CFM);

One (1) McQuay RTU equipped with DX Cooling (10 tons) and natural gas heat (182 kBTU) (3600 CFM);

Two (2) McQuay RTUs equipped with DX Cooling (6 tons) and natural gas heat (121 kBTU) (2100 CFM);

One (1) McQuay RTU equipped with DX Cooling (5 tons) and natural gas heat (85 kBTU) (2000 CFM);

served by two (2) Marathon Electric 5 HP HHW pumps and two (2) Marathon Electric 5 HP CHW

pumps

Three (3) Carrier Air Handling Units (AHU’s) equipped with chilled and heating hot water coils past

ASHRAE estimated service life (ESL) of 15 years (Missing Nameplates)

Boilers / Heating Equipment

Two (2) HB Smith heating hot water cast iron sectional boilers (1491 MBH ); 8 years remaining per

ASHRAE estimated service life (ESL) of 20 years;

Domestic Hot Water Systems

One (1) AO Smith natural gas direct fired natural gas domestic heater (50 MBH); served by one (1) Taco

1/6 HP recirculating hot water pump

Chillers / Cooling Towers / Air Conditioning Units / Other Cooling Equipment

One (1) McQuay 100 ton air cooled chiller provides chilled water to the air handling units.

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Facility Information

Building Name: Public Works Garage #1

and Garage #2

Address: 25 Industrial Drive

Willingboro, NJ 08046

Gross Floor Area: #1 – 6,004 sf; #2 – 5,490 sf

Year Built: 1960

# Occupants: 26 transient employees; 4 employees full time

Usage: Equipment storage, the garages are

operated 40 hours per week

Construction Features:

Facade: One story, cement block, in good condition (both buildings)

Roof Type: Pitched, grey, wood deck, in good condition (both buildings)

Windows: Metal frame, single pane, operable, in good condition (both buildings)

Exterior Doors: Garage #1 has 10 metal bay doors; Garage #2 has 7 metal bay doors (both buildings

are in good condition)

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Facility Information

Major Mechanical Systems – Public Works

Boilers / Heating Equipment

One (1) National US natural gas boiler (225 kBTU); 10 years past ASHRAE estimated

service life (ESL) of 20 years; not currently in use

Eight (8) gas fired unit heaters (various manufacturers) (173-200 kBTU) (2550-3700 CFM)

Domestic Hot Water Systems

One (1) Bradford White 50 gallon domestic hot water heater

Chillers / Cooling Towers / Air Conditioning Units / Other Cooling Equipment

One (1) 1 ton window a/c unit (800 CFM)

Other Mechanical Equipment

One (1) ice machine

One (1) refrigerator

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Greenhouse Gas Emission Reduction

Implementation of all identified ECMs will yield:

790,775 kilowatt-hours of annual avoided electric usage.

42,355 therms of annual avoided natural gas usage.

This equates to the following annual reductions:

509 tons of CO2;

-OR-

88 Cars removed from road;

-OR-

139 Acres of trees planted annually

The Energy Information Administration

(EIA) estimates that power plants in

the state of New Jersey emit 0.666 lbs

CO2 per kWh generated.

The Environmental Protection Agency

(EPA) estimates that one car emits

11,560 lbs CO2 per year.

The EPA estimates that reducing

CO2 emissions by 7,333 pounds

is equivalent to planting an acre of

trees.

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Notes and Assumptions

Project cost estimates were based upon industry accepted published cost data, rough order of magnitude

cost estimates from contractors, and regional prevailing wage rates. The cost estimates presented in this

report should be used to select projects for investment grade development. The cost estimates presented

in this report should not be used for budget development or acquisition requests.

Estimated energy and cost savings are based on individual projects being implemented and do not

account for potential synergies if multiple projects are implemented concurrently. Therefore, cumulative

energy and cost savings shown in this report may or may not be representative of actual results.

The average CO2 emission rate from power plants serving the facilities within this report was obtained

from the Environmental Protection Agency’s (EPA) eGRID2007 report. It is stated that power plants within

the state of NJ emit 0.66 lbs of CO2 per kWh generated.

The EPA estimates that burning one therm of natural gas emits 11.708 lbs CO2.

The EPA estimates that one car emits 11,560 lbs CO2 per year.

The EPA estimates that reducing CO2 emissions by 7,333 pounds is equivalent to planting an

acre of trees.

The following utility prices provided were used within this study:

School

Electric

$/Kwh

Natural Gas

$ / therm

Willingboro Municipal Complex Building $0.162 $1.202

Emergency Squad / Fire Station #161* $0.164 $1.488

Willingboro Fire Station #162 * $0.159 $1.488

Willingboro Fire Station #163 * $0.218 $1.488

Kennedy Center * $0.162 $1.601

Willingboro Public Library * $0.202 $1.444

Willingboro Public Works Garage #1 $0.187 $1.188

Willingboro Public Works Garage #2 * $0.211 $1.287

* *Assumed Gas pricing. Dome-Tech did not receive utility billing for reference.

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ECM #1: Upgrade Packaged Roof Top Units with High Efficiency Units

The existing rooftop units (RTUs) in the Kennedy Center and Firehouse163 are approximately 10 years old and are nearing the end of theirestimated equipment service life (EESL) per ASHRAE standards (TheEESL for package rooftop units is 15 years).

Replacing these RTU’s with new, higher efficiency units will reduceannual energy and maintenance costs.

When replacing the RTU for Firehouse 163, Willingboro should considerswitching to natural gas fired unit instead of an electric reheat unit.

New Jersey SmartStart offers rebates that typically pay for theincremental cost to upgrade to higher efficient units.

Energy Efficiency Ratios*

*Energy Efficiency Ratios: EER is the rating of

cooling output (Btu) divided by the electrical

energy input (watts). The higher the EER, the

more efficient the unit.

**Savings do not include maintenance savings.

Unit Capacity (tons) Existing Proposed

5 9 14

10 8.6 11

Picture: Kennedy Center Rooftop

Unit

Kennedy

CenterFire #163 TOTALS

Estimated Annual Energy Cost Savings: ** $17,500 $1,800 $19,300

Estimated Gross Implementation Costs: $311,950 $7,810 $319,760

NJ Smart Start Rebate: $27,660 $320 $27,980

Avoided Cost (Like and Kind Replacement): $277,800 $7,410 $285,210

Estimated Incremental Implementation Costs: $6,490 $80 $6,570

Estimated Simple Payback (years): (Incremental and without Avoided Costs) 0.4 (16.3) 0.0 (4.2) 0.3 (15.1)

Annual Avoided CO2 Emissions (tons): 36 1 37

* Note: Avoided Cost = Cost of Like and Kind replacement..

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ECM #2: At EOL, Upgrade Heat Pump Units to Higher Efficiency

The existing 1-4 ton, 8 SEER Split Heat Pump Units(HP’s) are past their estimated equipment service life(EESL) per ASHRAE standards. (The EESL for airhandling units is 15 years.)

Replacing these HP’s with new, higher efficiency and fullycontrolled units will reduce annual energy costs.

New Jersey SmartStart offers rebates of $67 per ton for installing heat pump systems with SEERs greater than 14 under its prescriptive rebate.

Picture: Firehouse 162 Split

System Heat Pump AC Unit

Library Fire #162 TOTALS

Estimated Annual Energy Cost Savings: $200 $200 $400

Estimated Gross Implementation Costs: $2,010 $2,010 $4,020

NJ Smart Start Rebate: $160 $160 $320

Avoided Cost (Like and Kind Replacement): $1,805 $1,805 $3,610

Estimated Incremental Implementation Costs: $45 $45 $90

Estimated Simple Payback (years): (Incremental and without Avoided Costs) 0.2 (9.2) 0.2 (9.2) 0.2 (9.2)

Annual Avoided CO2 Emissions (tons): 0 0 0

* Note: Avoided Cost = Cost of Like and Kind replacement..

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ECM #3: Install Computer Power Management System

By installing a computer power management system, IT administrators will be able to reduce per-PC

operating cost by reducing energy consumption via shutdown, standby and hibernate for PC’s and sleep

for monitors.

This software has the capability to set up profiles to optimize time of day schedules.

This system also enhances network security and improves the success rate of network maintenance task

by ensuring that PC’s are accessible when IT needs them to be.

This software has the capability to have an on-demand network-wide shutdown protects against virus

outbreak or an imminent power outage. Similarly, shutting down unattended PCs (whether logged onto or

not) after work hours can help protect against unauthorized access to the PCs’ data or to network

resources.

Average electric consumption of computer components PC Only: 120 kWh @ $0.15 per kWh = $18 per year

Monitor Only: 150 – 120 kWh @ $0.15 per kWh = $ 18 – 23 per year

Combined PC and Monitor: 200 kWh @ $0.15 per kWh = $30 per year

Kennedy Center

Estimated Annual Energy Cost Savings: $1,360

Gross Estimated Implementation Costs: $840

NJ Smart Start Rebate: $0

Net Estimated Implementation Costs: $840

Simple Payback (years) 0.6

Annual Avoided CO2 Emissions (tons): 3

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ECM #4: Vending Machine Power Management

Dome-Tech recommends installing a vending machine power management

device on all vending machines.

The device uses a passive infrared sensor to power down the machine when

the area surrounding it is vacant. Then it monitors the room’s temperature

and automatically re-powers the cooling system at one- to three-hour

intervals, independent of sales, to ensure that the product stays cold.

The microcontroller will never power down the machine while the compressor

is running, eliminating compressor short-cycling. In addition, when the

machine is powered up, the cooling cycle is allowed to finish before again

powering down (reduces compressor wear and tear).

*Assumes installation

by in-house staff.

Municipal

Building

Kennedy

CenterLibrary Fire #161 Fire #163 TOTAL

Estimated Annual Savings: $190 $190 $240 $190 $260 $1,070

Gross Estimated Implementation Cost: $180 $180 $180 $180 $180 $900

NJ Smart Start Rebate: $0 $0 $0 $0 $0 $0

Net Estimated Implementation Cost: $180 $180 $180 $180 $180 $900

Simple Payback (years): 0.9 0.9 0.8 0.9 0.7 0.8

Annual Avoided CO2 Emissions (tons): 0 0 0 0 0 0

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ECM #5: Cooling Tower Fan VFD

The cooling tower is equipped with one (1) constant speed 15 HP fan.

Dome-Tech recommends installing a variable frequency drive (VFD) on the fan motor,

and controlling the fan speed based upon condenser water temperature. The fan speed

is proportional to the cubed root of the required power. In other words, 50% fan speed

will require 13% of the full load power.

Library

Estimated Annual Savings: $2,580

Gross Estimated Implementation Cost: $4,870

NJ Smart Start Rebate: $1,800

Net Estimated Implementation Cost: $3,070

Simple Payback (years): 1.2

Annual Avoided CO2 Emissions (tons): 4

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ECM #6: Install Timers on Hot Water Heater

The Library has one (1) electric domestic hot water heater. The hotwater heater is 80 gallons and rated for 15 kilowatts of heating.

Although hot water heaters are insulated, there is significant standbyheat loss during off hours. The heating elements turn on throughoutunoccupied hours to maintain the desired set point temperature.

Placing timers on the units will turn the units off during unoccupiedhours and turn them back on two hours prior to occupation. Thissetback schedule eliminates energy used to make up the standby heatloss.

*Equipment cost only. Assumes install by staff.Library:

Electric DHW Unit

Library TOTALS

Estimated Annual Energy Cost Savings: $100

Estimated Gross Implementation Costs: * $160

NJ Smart Start Rebate: $0

Net Estimated Implementation Costs: $160

Estimated Simple Payback: 1.6

Annual Avoided CO2

Emissions (tons): 0

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ECM #7: Lighting Upgrade

Although most of the current light fixtures have higher efficiency T-8 fluorescent lamps and ballasts, improved light fixture designs will further reduce lighting energy costs by relamping to lower wattage 25 Watt T8 lamps or retrofitting T12 fixtures to higher efficiency T8 while maintaining the minimum lighting output as per state codes. The Public Works Garages have older technology HID lighting and should be retrofitted with High Output T5 or T8 fixtures.

Many areas were observed to have lights on regardless of occupancy. Installing occupancy sensors in these areas will automatically turn lights on/off according to actual occupancy by sensing the presence of people in the room. Occupancy sensors will reduce lighting energy costs by approximately 30%*.

*Source: Turner, Wayne, Energy Management Handbook, 1999.

Municipal

Building

Kennedy

CenterLibrary

DPW

#1

DPW

#2

Fire

#161

Fire

#162

Fire

#163TOTALS

Estimated Annual Energy Cost

Savings:$10,770 $34,970 $5,280 $580 $80 $2,380 $870 $270 $55,200

Estimated Gross Implementation

Costs: $19,310 $84,705 $11,900 $1,755 $2,580 $6,075 $2,320 $1,895 $130,540

NJ Smart Start Rebate: $3,990 $9,530 $80 $220 $370 $1,650 $360 $425 $16,625

Estimated Net Implementation

Costs:$15,320 $75,175 $11,820 $1,535 $2,210 $4,425 $1,960 $1,470 $113,915

Estimated Simple Payback (years): 1.4 2.1 2.2 2.6 2.5 1.9 2.3 5.4 2.1

Annual Avoided CO2 Emissions

(tons): 22 71 9 1 1 5 2 0 120

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ECM #8: Replace Boilers with High Efficiency Modulating Condensing Boilers

The Kennedy Center is equipped with a natural gas-fired tube hot water boiler. The Municipal Buildingis equipped with cast iron sectional boilers and Firehouses 161, and 163 are equipped with smallercast iron boilers.

For the most part, these boilers are old and are nearing the end of the equipment service life (ASHRAEstates the service life of similar equipment to be 25 years).

The ages, sizes, types and configurations of the boilers do not lend themselves to efficient operation.Generally, as boilers approach the end of their service life, the efficiency degrades and the boiler mustconsume more fuel in order to produce the same rated output. In addition, there is a direct correlationbetween risk of equipment failure (tube breaks & meltdown, shell cracks, furnace surface area failure)and equipment age.

If the existing boilers could be replaced by high efficiency, modulating or modular condensing boilers,savings will be realized in two ways. Modulating boilers, usually 1,000 MBH or smaller, employ multiple burners to meet the heating load. Each burner

operates independently, eliminating the “all on/all off” operation of single burner boilers. As building loadincreases only those burners necessary to meet the load are fired. This allows each burner to run at optimalefficiency. Modular boilers operate under the same principal but for larger installations. In this case multipleboilers are used rather than multiple burners. Modular boilers usually are employed in 1000, 2000 or 3000 MBHsizes.

Condensing boilers recover energy from the exhaust gas thus allowing efficiencies of 90% and above.

When a boiler is both a modulating/modular type and a condensing type, extremely high efficienciescan be realized.

Picture: Old Cast Iron Sectional

Boiler (Municipal Building)

Picture: Old Fire-Tube Boiler

(Kennedy Center)Page 36

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ECM #8: Replace Boilers w/ High Efficiency Modulating Condensing Boilers (continued)

The high first cost of a new boiler system may preclude this ECM from being justified by economicsalone at some of the facilities.. However, reliability issues warrant consideration of these projects aspart of a long-term capital improvement plan. The ECM table details the economics at each site

NOTE: The presented economics should be used for planning purposes only. If the client decides to proceed with any boiler replacement project,

these economics should be refined with an investment grade analysis.

* Due to incomplete billing data for the Kennedy Center the fuel savings which are based on boiler load calculation are larger than annual natural gas

expenditure.

Municipal

Building

Kennedy

Center *Fire #161 Fire #163 TOTAL

Estimated Annual Savings:$3,020 $17,280 $800 $510 $21,610

Gross Estimated Implementation Cost:$151,440 $294,550 $8,150 $6,020 $460,160

NJ Smart Start Rebate:$3,000 $6,000 $610 $300 $9,910

Avoided Cost (Like and Kind Replacement): *$126,850 $257,660 $5,380 $4,900 $394,790

Estimated Incremental Implementation Cost:$21,590 $30,890 $2,160 $820 $55,460

Estimated Simple Payback (years): (Incremental and without Avoided Costs)

7.1 (49.2) 1.8 (16.7) 2.7 (9.4) 1.6 (11.2) 2.6 (20.8)

Annual Avoided CO2 Emissions (tons): 6 63 3 2 78

* Note: Avoided Cost = Cost of Like and Kind replacement..

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ECM #9: Heat Recovery from Absorption Chiller Exhaust

The absorption chiller produces exhaust

temperatures of 270 ○F and runs year-round.

Reclaiming wasted heat from the chiller exhaust

system and integrating it into the domestic hot

water system will reduce the facility’s natural gas

use.

Waste energy can be reclaimed by utilizing an air

to water heat exchange in the exhaust system.

Installing a waste heat energy recovery system will

provide about $2,410 in annual savings.

Library TOTALS

Estimated Annual Energy Cost Savings: $2,410

Estimated Gross Implementation Costs: $6,660

NJ Smart Start Rebate: $0

Net Estimated Implementation Costs: $6,660

Estimated Simple Payback: 2.8

Annual Avoided CO2

Emissions (tons): 70

Picture: Library Absorption Chiller

Picture: Water to Air Heat Exchanger and

Screenshot of Exhaust Temperature of 270 FPage 38

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ECM #10: Reset Hot Water Temperature based on Outside Air Temperatures

A hot water reset program will reduce the temperature of the hot water

leaving the boilers during low load days. A temperature setpoint reduction will

decrease the heat losses in the distribution piping, thus decreasing energy

consumption.

Connecting the boilers to a building management system and implementing a

temperature reset program will provide savings of over $350 per year.

Municipal Building

Estimated Annual Savings: $350

Gross Estimated Implementation Cost: $1,080

NJ Smart Start Rebate: $0

Net Estimated Implementation Cost: $1,080

Simple Payback (years): 3.1

Annual Avoided CO2 Emissions (tons): 2

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ECM #11: Upgrade Window AC Units

Window air conditioning units that are installed at the MunicipalBuilding, Kennedy Center, Fire 162 and the Public WorksBuilding provide localized air conditioning for small privateoffices and storage areas. The units are in poor physicalcondition, and inefficient compared to today’s standards.

Dome-Tech recommends replacing these units with new, higherefficiency units.

New 10.5 SEER (Seasonal Energy Efficiency Rating) units areestimated to be at least 14% more efficient at full/part loads thanthe existing equipment.

Public Works Building-

Window AC Unit

Municipal

Building

Kennedy

CenterDPW Fire #162 TOTAL

Estimated Annual Savings: $70 $2,820 $70 $70 $3,030

Gross Estimated Implementation Cost: $750 $10,000 $250 $750 $11,750

NJ Smart Start Rebate: $0 $0 $0 $0 $0

Net Estimated Implementation Cost: $750 $10,000 $250 $750 $11,750

Simple Payback (years): 10.7 3.5 3.6 10.7 3.9

Annual Avoided CO2 Emissions (tons): 0 6 0 0 6

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ECM #12: Weather-stripping Exterior Doors

Many of the perimeter doors have poor weatherstripping that allow infiltration to enter conditionedareas causing an unnecessary increase in theheating, cooling and dehumidification load.

Dome-Tech recommends replacing all old weatherstripping on perimeter doors that do not havevestibules.

Energy savings will be realized by reducing theamount of unconditioned outside air entering thebuilding, thus reducing the HVAC loads and cost.

Picture: Municipal Building

Infiltration Area

Municipal

Building

Kennedy

CenterLibrary Fire #162 TOTAL

Estimated Annual Savings: $280 $810 $170 $80 $1,340

Gross Estimated Implementation Cost: $1,400 $3,500 $1,050 $350 $6,300

NJ Smart Start Rebate: $0 $0 $0 $0 $0

Net Estimated Implementation Cost: $1,400 $3,500 $1,050 $350 $6,300

Simple Payback (years): 5.0 4.3 6.2 4.4 4.7

Annual Avoided CO2 Emissions (tons): 1 2 0 0 3

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ECM #13: Replace Kitchen Equipment with Energy Star Rated Equipment

Most of the kitchen equipment (reach-in coolers/freezers and ice

machines) in the Kennedy Center and DPW Building are older and

less efficient compares to today’s standards.

Replacing the kitchen equipment with higher efficiency Energy Star

labeled equipment will provide at least $2,590 in annual savings.

Improvements in kitchen equipment include lower idle rates, better

insulation which reduces the amount of standby losses through

sides and top, and premium efficient fan motors.

Kennedy Center: Electric

Stove

Kennedy Center:

Freezer Refrigerator

Kennedy Center:

Ice Machine

Kennedy

CenterDPW TOTAL

Estimated Annual Savings: $1,360 $1,230 $2,590

Gross Estimated Implementation Cost: $7,410 $4,910 $12,320

NJ Smart Start Rebate: $0 $0 $0

Net Estimated Implementation Cost: $7,410 $4,910 $12,320

Simple Payback (years): 5.4 4.0 4.8

Annual Avoided CO2 Emissions (tons): 3 2 5

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ECM #14: At End of Life (EOL) Replace Aging Air Cooled Chiller with High Efficiency Unit

Willingboro Township is considering replacing the air cooled chiller whichis approximately 6 years old. It has not approached its estimatedequipment service life (EESL) per ASHRAE standards. (The EESL for anair cooled chiller is 15 years.)

When replacing the air cooled chiller, Willingboro should considerupgrading to a higher efficiency unit, which will significantly reduceannual energy and maintenance costs.

New Jersey SmartStart offers rebates that typically pay for theincremental cost to upgrade to higher efficient units.

Energy Efficiency Ratios*

*Energy Efficiency Ratios: EER is the

rating of cooling output (Btu) divided by the

electrical energy input (watts). The higher

the EER, the more efficient the unit.

Unit Capacity (tons) Existing (kW/ton) Proposed (kW/ton)

100 1.23 1.13

Picture: Municipal Building Air Cooled

Chiller

Municipal Building

Estimated Annual Energy Cost Savings: $2,400

Estimated Gross Implementation Costs: $184,610

NJ Smart Start Rebate: $5,200

Avoided Cost (Like and Kind Replacement): ** $164,610

Estimated Incremental Implementation Costs: $14,800

Simple Payback (years): (Incremental and without Avoided Costs) 6.2 (74.8)

Annual Avoided CO2 Emissions (tons): 5

** Note: Avoided Cost = Cost of Like and Kind replacement..

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ECM # 15: VFD’s on Unit Ventilator Blower Fans

Currently, the blower fans on the Unit Ventilators run at constant speed.

Installation of fractional horsepower variable frequency drives (VFD) on

the Unit Ventilators (UV) will reduce fan power energy. When the

temperature setpoint is satisfied, the VFD on the blower motor will

reduce fan speeds and save energy.

Installing Fractional HP Power VFD’s will provide at least $1,520 in

annual savings.

Kennedy Center

Estimated Annual Savings: $1,520

Gross Estimated Implementation Cost: $9,740

NJ Smart Start Rebate: $0

Net Estimated Implementation Cost: $9,740

Simple Payback (years): 6.4

Annual Avoided CO2 Emissions (tons): 3

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ECM # 16: Install VFDs on Perimeter Hot Water Pumps

The perimeter hot water systems are equipped with the supply pumps outlined below. These pumps operate in online / standby mode.

The pumps run at full speed regardless of system hot water demands.

Annual system pumping cost may be reduced by installing variable frequency drive (VFD) on the pump motors. Pump speed would be based upon system differential temperature.

The installation cost estimates assume the pump motor is inverter duty, (which means that the motor would not also need to be replaced), and the VFD will be installed on both pump motors. Three way valves will have to be removed and replaced with two-way valves. Installation costs and payback will be reduced by approximately 35% if a VFD is installed only on one pump.

LibraryKennedy

CenterTOTALS

Estimated Annual Energy Cost Savings: $620 $5,230 $6,850

Estimated Gross Implementation Costs: $3,730 $41,890 $45,620

NJ Smart Start Rebate: $310 $110 $420

Estimated Net Implementation Costs: $3,420 $41,780 $45,200

Estimated Simple Payback (years): 5.5 8.0 6.6

Annual Avoided CO2 Emissions (tons): 1 11 12

Building HHW Pumps Motor Nameplate HP Equivalent Power Draw, kw Annual Run Hours

Library P 1 2 1.492 4,230

Kennedy Center P 1 20 14.92 4,230

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ECM #17: Domestic Hot Water System Optimization

The domestic hot water available to building population is heated by a natural gas-firedwater heater.

Operational Savings:

This system is set to provide domestic hot water at 129 F. Energy savings can beachieved by adjusting the controls of these heaters to reduce the storage temperaturerequirements to 120 F.

Picture: Municipal Building

Hot Water Heater

Municipal Building

Estimated Annual Savings: $30

Gross Estimated Implementation Cost: $200

NJ Smart Start Rebate: $0

Net Estimated Implementation Cost: $200

Simple Payback (years): 6.7

Annual Avoided CO2 Emissions (tons): 0

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ECM #18: Daylight Harvesting

Daylight harvesting takes advantage of free natural light through windows or

skylights; thus, artificial light energy is reduced.

Daylight harvesting controls includes placing photocells and dimming ballasts

on the applicable light fixtures (perimeter of building).

The photocells will automatically dim the lights as the amount of natural light

increases ensuring adequate light levels.

Library

Estimated Annual Energy Cost Savings: $850

Gross Estimated Implementation Costs: $7,000

NJ Smart Start Rebate: $1,100

Net Estimated Implementation Costs: $5,900

Simple Payback (years) 6.9

Annual Avoided CO2 Emissions (tons): 1

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ECM # 19: Install VFDs on Chilled Water Pumps

The perimeter chilled water systems are equipped with the supply pumps outlined below. These pumps operate in online / standby mode.

The pumps run at full speed regardless of system chilled water demands.

Annual system pumping cost may be reduced by installing variable frequency drive (VFD) on the pump motors. Pump speed would be based upon system differential temperature.

The installation cost estimates assume the pump motor is inverter duty, (which means that the motor would not also need to be replaced), and the VFD will be installed on both pump motors. Three way valves will have to be removed and replaced with two-way valves. Installation costs and payback will be reduced by approximately 35% if a VFD is installed only on one pump.

Municipal

BuildingLibrary TOTALS

Estimated Annual Energy Cost Savings: $690 $860 $1,550

Estimated Gross Implementation Costs: $8,520 $3,940 $12,460

NJ Smart Start Rebate: $775 $775 $1,550

Estimated Net Implementation Costs: $7,745 $3,165 $10,910

Estimated Simple Payback (years): 11.2 3.7 7.0

Annual Avoided CO2 Emissions (tons): 1 1 2

Building CHW PumpsMotor Nameplate

HPEquivalent Power Draw, kw Annual Run Hours

Library P 1 5 3.73 2,338

Municipal Building P 1 5 3.73 2,338

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ECM #20: Premium Efficiency Motors

Most of the existing motors serving the pumps are standard efficiency motors. See the Appendix for a

detailed list of motors surveyed for this ECM.

Dome-Tech recommends replacing the Cooling Tower motors at the Library . It is recommended at the

end-of-life of the motors at the Municipal Building and Library and the remaining motors at the

Kennedy Center, be replaced with new premium efficiency motors. The new motors would reduce the

electrical consumption of the building.

Typical Efficiencies for Standard & Premium Motors

(1800 RPM Open Drip-Proof Motors)

HP QTY STANDARD EFFICIENCY PREMIUM EFFICIENCY

15 1 90% 93%

Municipal

Building

Kennedy

CenterLibrary TOTAL

Estimated Annual Savings: $110 $440 $190 $740

Gross Estimated Implementation Cost: $3,510 $1,560 $2,250 $7,320

NJ Smart Start Rebate: $110 $110 $270 $490

Net Estimated Implementation Cost: $3,400 $1,450 $1,980 $6,830

Simple Payback (years): 30.9 3.3 10.4 9.2

Annual Avoided CO2 Emissions (tons): 0 1 0 1

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ECM #21: Install VFD Controls On Condenser Water Pumps

Library

Estimated Annual Savings: $340

Gross Estimated Implementation Cost: $3,560

NJ Smart Start Rebate: $310

Net Estimated Implementation Cost: $3,250

Simple Payback (years): 9.6

Annual Avoided CO2 Emissions (tons): 62

The condenser water system is equipped with the following supply pumps. These pumps operate in online / standby mode.

The pump runs at full speed regardless of system condenser water demands.

Annual system pumping cost may be reduced by installing a variable frequency drive (VFD) on the pump motors. Pump speed would be based upon system differential temperature.

The installation cost estimates assume the pump motor is inverter duty; and the VFD will be installed on both pump motors. Installation costs and payback will be reduced by approximately 35% if a VFD is installed only on one pump.

BuildingCondenser Water

Pumps

Motor Nameplate

HP

Equivalent

Power Draw,

kw

Annual Run

Hours

Library P 1 2 1.492 2,338

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ECM # 22: Replace Hot Water Fan Coil Units with Gas Radiant Heaters

The garage bays in Public Works Building currently have hot waterfan coil units that provide heat for workers. Maintaining aconditioned environment using convective-type heating in a lowoccupancy and relatively high volumetric space can be costly.

Consider replacing the existing hot water unit heaters with directgas-fired radiant unit heaters.

Radiant heaters eliminate convective heat loss and thermalstratification by directly heating surfaces and people rather thanvolumetric air.

Direct fired radiant heaters have much lower maintenancerequirements than the current fan coil units.

DPW Fire #162 TOTALS

Estimated Annual Energy Cost Savings: $3,890 $870 $4,760

Estimated Gross Implementation Costs: $56,770 $14,190 $70,960

NJ Smart Start Rebate: $2,400 $600 $3,000

Estimated Net Implementation Costs: $54,370 $13,590 $67,960

Estimated Simple Payback (years): 14.0 15.6 14.3

Annual Avoided CO2 Emissions (tons): 14 3 17

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ECM #23: Install Heaters for Instantaneous Hot Water

The domestic hot water is supplied by a hot water heater at Firehouses 161

and 162.

In order to eliminate standby heat loss from the storage tank, replace it with

an instantaneous hot water heater.

Fire #161 Fire #162 TOTALS

Estimated Annual Energy Cost Savings: $40 $30 $70

Estimated Gross Implementation Costs: $1,040 $1,040 $2,080

NJ Smart Start Rebate: $300 $300 $600

Estimated Net Implementation Costs: $740 $740 $1,480

Estimated Simple Payback (years): 18.5 24.7 21.1

Annual Avoided CO2 Emissions (tons): 0 0 0

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ECM #24: Building Management System

•Setpoint Optimization • Exhaust Fan Time of Day Optimization

•Time of Day Optimization ▪ VFDs on Chilled Water, Condenser Water, Heating Hot

Water Pumps and Cooling Tower Fan

•Demand Control Ventilation ▪ Hot Water Reset base on Outside Air Temperature

A building management system (BMS) is a computer system designed specifically for the automatedcontrol and monitoring of the heating, ventilation, lighting, and needs of a single facility or group ofbuildings. The system can also be used for data collection and used to produce trend analysis andannual consumption forecasts.

With the exception of a localized control module at the Library, the buildings are not equipped with acentralized building management system, and much of the HVAC is operated manually.

Dome-Tech recommends installing a Building Management System with the following capabilities (thefollowing calculations below are included under the Building Management System energy savings):

Municipal

Building

Kennedy

CenterLibrary TOTAL

Estimated Annual Savings: $7,400 $41,410 $11,260 $60,070

Gross Estimated Implementation Cost: $227,950 $1,059,530 $135,230 $1,422,710

NJ Smart Start Rebate: $0 $0 $0 $0

Net Estimated Implementation Cost: $227,950 $1,059,530 $135,230 $1,422,710

Simple Payback (years): 30.8 25.6 12.0 23.7

Annual Avoided CO2 Emissions (tons): 26 105 26 157

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ECM #25: Demand Control Ventilation

Building codes require that a minimum amount of fresh air be provided to ensure adequate air quality.

To comply, ventilation systems often operate at a fixed rate based on an assumed occupancy (e.g., 20

CFM per person multiplied by the maximum design occupancy). The result is excessive fresh air

volumes which require costly (and unnecessary) conditioning.

Demand-controlled ventilation controls the amount of outside air based upon the CO2 levels generated

by building occupants. Demand ventilation should be added to any return air system where space

occupancy varies dramatically – library, cafeterias and gymnasiums.

By installing CO2 sensors and controlling the CO2 level at less than 1000 PPM, the outside air flow is

kept to the absolute minimum while space conditions are kept in compliance with building codes and

standards such as the ASHRAE Indoor Air Quality Standard.

Municipal

Building

Kennedy

CenterLibrary TOTALS

Estimated Annual Energy Cost Savings: $900 $6,900 $4,000 $11,800

Estimated Gross Implementation Costs: $17,550 $23,400 $17,550 $58,500

NJ Smart Start Rebate: $0 $0 $0 $0

Estimated Net Implementation Costs: $17,550 $23,400 $17,550 $58,500

Estimated Simple Payback (years): 19.5 3.4 4.4 5.0

Annual Avoided CO2 Emissions (tons): 3 19 11 33

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ECM #25: Demand Control Ventilation (continued)

BUILDING UNIT AREA SERVING

MUNICIPAL MPS004BGCK10E NEW LOBBY

MUNICIPAL MPS010BGCM22E COUNCIL CHAMBERS

MUNICIPAL MPS006BGCM22E COURT ROOMS

KENNEDY CENTER RKKB-A240DM40E CAFETERIA

KENNEDY CENTER RKKB-A102DL22E GYM

KENNEDY CENTER RKKB-A240DL30E GYM

KENNEDY CENTER CHA16-953-1Y MUSIC RM

LIBRARY 39THLMXAE AHU-1

LIBRARY 39MN17A AHU-2

LIBRARY 39MN17A AHU-3

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ECM #26: Optimize and Standardize the Space Temperature Setpoints

A review of the programmable thermostats revealed room and supply temperature setpoint inconsistencies.

DomeTech recommends that standard summer setpoints be implemented as follows:

75 F cooling - 70 heating

Ensure there are no deviations between the zone temperature setpoints(prevents one zone heating, next zone cooling)

BuildingMunicipal

Building

Kennedy

CenterTOTALS

Estimated Annual Savings: $2,500 $8,100 $10,600

Gross Estimated Implementation Cost: $2,160 $70,780 $72,940

NJ Smart Start Rebate: $0 $0 $0

Net Estimated Implementation Cost: $2,160 $70,780 $72,940

Simple Payback (years): 0.9 8.7 6.9

Annual Avoided CO2 Emissions (tons): 11 17 28

UNITAREA

SERVINGCFM

Current Average Zone

Winter Setpoint

Proposed Zone

Winter Setpoint

FINANCE YSC060A3 1450 74 70

FINANCE YSC060A3 1450 74 70

FINANCE YSC060A3 1450 74 70

INSPECTIO

NSYSC090A3 2900

74 70

NEW

LOBBY

MPS004BG

CK10E1450

74 70

COUNCIL

CHAMBERS

MPS010BG

CM22E3600

74 70

ADMINISTR

ATION

MPS006BG

CM22E2100

74 70

OFFICESMPS005BG

CM22E2000

74 70

COURT

ROOMS

MPS006BG

CM22E2100

74 70Page 56

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ECM #27: Optimize Time of Day Schedules

A review of the schedules in theprogrammable thermostatsrevealed an opportunity to optimizethe time of day schedules.

Optimizing the schedules to betterreflect actual building occupancywill reduce heating and coolingcosts.

For example, programming theunits to come on one hour later andturn off one hour sooner will reduceHVAC costs.

Please see Appendix for Time of Day Schedules

EXISTING PROPOSED

UNITAREA

SERVINGCFM START STOP START STOP

LIBRARY AHU-

1

39THLMX

AE10000 7:00 AM 10:00 PM 9:00 AM 9:00 PM

LIBRARY AHU-

239MN17A 8500 7:00 AM 10:00 PM 9:00 AM 9:00 PM

LIBRARY AHU-

339MN17A 8500 7:00 AM 10:00 PM 9:00 AM 9:00 PM

Municipal

Building

Kennedy

CenterLibrary TOTAL

Estimated Annual Savings: $1,330 $10,100 $1,935 $13,365

Gross Estimated Implementation Cost: $2,160 $70,780 $22,810 $95,750

NJ Smart Start Rebate: $0 $0 $0 $0

Net Estimated Implementation Cost: $2,160 $70,780 $22,810 $95,750

Simple Payback (years): 1.6 7.0 11.8 7.2

Annual Avoided CO2 Emissions (tons): 7 55 11 73

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ECM #28: Exhaust Fan Time of Day Optimization

Currently, the exhaust fans are locally controlled. Unless these units are

manually turned off, they exhaust conditioned air during unoccupied periods

resulting in excessive energy consumption.

The units are equipped with time of day scheduling controls. However, the

units are currently operating 24/7.

Energy savings will be realized by programming controls on these units to

automate exhaust fan schedules according to building occupancy.

Municipal

Building

Kennedy

CenterLibrary TOTAL

Estimated Annual Savings: $340 $990 $370 $1,700

Gross Estimated Implementation Cost: $9,110 $90,480 $10,260 $109,850

NJ Smart Start Rebate: $0 $0 $0 $0

Net Estimated Implementation Cost: $9,110 $90,480 $10,260 $109,850

Simple Payback (years): 26.8 91.4 27.7 64.6

Annual Avoided CO2 Emissions (tons): 1 2 1 4

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ECM # 29: Creation of an Energy Awareness & Education Program

The Township has no observed program in place.

Local Municipalities can have a potentially large impact on promoting an energy conscious

and conservation-minded society that starts in their community leading to energy cost

reductions, environmental benefits, and national energy independence.

In addition, townships can receive recognition for their efforts and possible media

coverage, which can contribute to enhanced community spirit, and individual feelings of

accomplishment and connection.

Estimated Annual Savings: $10,000 - $15,000

Gross Estimated Implementation Cost: $1500 each

Expected Rebate / Energy Efficiency Credit: None

Net Estimated Implementation Costs: $1500

Simple Payback (yrs): Varies

Annual Avoided CO2 Emissions (tons): Varies

Cost per Ton CO2 Reduction ($/ton): Varies

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Renewable/Distributed Energy Measures

Distributed Generation & Renewable Energy

Distributed Generation (on-site generation) generates electricity from many small energy sources. These sources can be renewable (solar/wind/geothermal) or can be small scale power generation technologies (CHP, fuel cells, microturbines)

Renewable energy is energy generated from natural resources (sunlight, wind, and underground geothermal heat) which are naturally replenished

Photovoltaics (solar) are particularly popular in Germany and Spain and growing in popularity in the U.S.

Wind power is growing as well, mostly in Europe and the U.S.

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Renewable Energy Technologies: Wind

Wind turbines generate electricity by harnessing a wind stream's kinetic energy as it spins the turbine airfoils. As with most renewable energy sources, wind

energy is subject to intermittent performance due to the unpredictability of wind resources.

Willing boro Wind Speed

As previously stated, wind speed is critical to the successful wind turbine installation. According to average wind data from NASA’s Surface Meteorology and

Solar Energy records, the average annual wind speed for the Willingboro area is 5.2 meters per second. Ideal wind speeds for a successful project should

average over 6 meters per second.

For the Township of Willingboro, Dome-Tech considered three (3) types of wind turbine technologies; building integrated wind turbines (1 kW each) and

traditional ground mounted wind turbines (5 kW & 50 kW).

Building Integrated Wind Turbines

Model: AeroVironment AVX1000

Height: 8.5’

Rotor Diameter: 6’

Weight: 130 lbs.

Cut-In Wind Speed: 2.2 m/s

Maximum Generating Capacity: 1 kW

5 kW Ground Mount

Model: WES5 Tulipo

Height: 40’

Rotor Diameter: 16’

Weight: 1,900 lbs.

Cut-In Wind Speed: 3.0 m/s

Maximum Generating Capacity: 5.2 kW

50 kW Ground Mount

Model: Entegrity EW50

Height: 102’

Rotor Diameter: 50’

Weight: 21,000 lbs.

Cut-In Wind Speed: 4.0 m/s

Maximum Generating Capacity: 50 kW

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Renewable Energy Technologies: Wind

Wind Turbine Pros & Cons

Pros Cons

Annual reduction in energy

spend and use can be

potentially reduced by almost

$17,000 (21% reduction).

Typical equipment life span is

15-30 years.

Reduction of annual

greenhouse gas emissions by

39 tons per year.

A wind turbine project could

be incorporated into science

and other curriculums to raise

student awareness of energy

alternatives.

High visible “green” project.

Payback period is significant

(over 9 years).

Average area wind speed is

not ideal and impacts

performance.

Prone to lighting strikes.

Bird collisions are likely, but

may be reduced with avian

guard (building integrate only).

Zoning may be an issue.

Check with local zoning

regulations.

Wind turbines do create

noise, although below 50 dB (a

typical car ride is over 80 dB).

The project economics and wind turbine pros and cons are presented in the following tables:

Should the Willingboro Township decide to pursue a wind turbine project, Dome-Tech recommends

commissioning a more detailed study.

Wind Turbine Economics

Building

Integrated

Ground Mount

5 kW

Ground Mount

50 kW

Gross Installation Cost Estimate $130,000 $62,400 $250,000

NJJ SSB Rebate $47,498 $37,483 $98,436

Net Installation Cost Estimate $82,502 $24,917 $151,564

Annual Energy Savings $2,256 $1,780 $16,792

Simple Payback 36.6 yrs. 14.0 yrs. 9.0 yrs.

System Capacity 20 kW 10 kW 50 kW

Annual Avoided Energy Use 14,843 kWh 11,713 kWh 110,472 kWh

Annual CO2 Emmisions,

Therms5 4 39

% of Annual Electric Use* 2.9% 2.3% 21.9%

Willingboro Township - Municipal Building: 503680 kWh/Year.

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Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

Sunlight can be converted into electricity using photovoltaics (PV).

A solar cell or photovoltaic cell is a device that converts sunlight directly into electricity.

Photons in sunlight hit the solar panel and are absorbed by semiconducting materials, such as silicon. Electrons are knocked loose from their atoms, allowing them to flow through the material to produce electricity.

Solar cells are often electrically connected and encapsulated as a module, in series, creating an additive voltage. The modules are connected in an array. The power output of an array is measured in watts or kilowatts, and typical energy needs are measured in kilowatt-hours.

Solar system arrays are recommended in this application for potenial placement on additional selected areas.

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The implementation of solar PV projects in

Willingboro Township would place your

facilities at the forefront of renewable

energy utilization. This allows the

Township the opportunity to not only gain

experience with this energy technology,

but also to win recognition as an

environmentally sensitive, socially

conscience government. Additionally,

these projects could be incorporated into

science education and additional

curriculums in the local schools to raise

awareness of current energy alternatives

to the younger generations.

Non-Financial Benefits of Solar PV

Renewable Energy Technologies: Solar Photovoltaic

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Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

System Capacity (kW) Coverage (Square Feet) No. of Panels Annual Output (kWh)

Roof Mount 30 3931 131 31,733

Install Roof Mount Solar Photovoltaic System(s)

WILLINGBORO TWP - MUNICIPAL BUILDING

Assumptions

System Capacity, kw-dc (maximum utilization of roof space) 30 kw dc

Estimated Annual AC Energy Produced by Proposed Solar PV System 31,733 kwh

Total Annual Facility Electric Use, kwhrs 457,944 kwh

Proposed % of Total Annual kWh supplied by Solar PV 7%

All-In Rate for Electric Year 1 $0.162 / kwh

Year 1 Electric Cost Savings $5,141

Year 1 Maintenance Costs $602

Estimated Year 1 SREC Value: $640 / SREC

Estimated Year 1 SREC Revenue: $20,299

Financial Results

Actual Payback 6.6 years

IRR (25 Years) 13.2%

Net Present Value (25 yrs, 8% discount rate) $54,720

Cost and RebateCost per kW installed $6,000

System Installed Cost $150,535

NJ CEP Rebate ($1/watt for systems < 50 kW) $30,107

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Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

System Capacity (kW) Coverage (Square Feet) No. of Panels Annual Output (kWh)

Roof Mount 2 3931 8 1,862

Install Roof Mount Solar Photovoltaic System(s)

WILLINGBORO TWP - FIRESTATION 161

Assumptions

System Capacity, kw-dc (maximum utilization of roof space) 2 kw dc

Estimated Annual AC Energy Produced by Proposed Solar PV System 1,862 kwh

Total Annual Facility Electric Use, kwhrs 2,844 kwh

Proposed % of Total Annual kWh supplied by Solar PV 65%

All-In Rate for Electric Year 1 $0.164 / kwh

Year 1 Electric Cost Savings $305

Year 1 Maintenance Costs $35

Estimated Year 1 SREC Value: $640 / SREC

Estimated Year 1 SREC Revenue: $1,191

Financial Results

Actual Payback 6.6 years

IRR (25 Years) 13.2%

Net Present Value (25 yrs, 8% discount rate) $3,265

Cost and Rebate

Cost per kW installed $6,000

System Installed Cost $8,832

NJ CEP Rebate ($1/watt for systems < 50 kW) $1,766

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Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

System Capacity (kW) Coverage (Square Feet) No. of Panels Annual Output (kWh)

Roof Mount 6 3931 25 5,939

Install Roof Mount Solar Photovoltaic System(s)

WILLINGBORO TWP - FIREHOUSE 162

Assumptions

System Capacity, kw-dc (maximum utilization of roof space) 6 kw dc

Estimated Annual AC Energy Produced by Proposed Solar PV System 5,939 kwh

Total Annual Facility Electric Use, kwhrs 2,970 kwh

Proposed % of Total Annual kWh supplied by Solar PV 200%

All-In Rate for Electric Year 1 $0.159 / kwh

Year 1 Electric Cost Savings $944

Year 1 Maintenance Costs $113

Estimated Year 1 SREC Value: $640 / SREC

Estimated Year 1 SREC Revenue: $3,799

Financial Results

Actual Payback 6.7 years

IRR (25 Years) 13.0%

Net Present Value (25 yrs, 8% discount rate) $9,982

Cost and Rebate

Cost per kW installed $6,000

System Installed Cost $28,175

NJ CEP Rebate ($1/watt for systems < 50 kW) $5,635

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

System Capacity (kW) Coverage (Square Feet) No. of Panels Annual Output (kWh)

Roof Mount 8 3931 36 8,727

Install Roof Mount Solar Photovoltaic System(s)

WILLINGBORO TWP - FIREHOUSE 163

Assumptions

System Capacity, kw-dc (maximum utilization of roof space) 8 kw dc

Estimated Annual AC Energy Produced by Proposed Solar PV System 8,727 kwh

Total Annual Facility Electric Use, kwhrs 19,697 kwh

Proposed % of Total Annual kWh supplied by Solar PV 44%

All-In Rate for Electric Year 1 $0.218 / kwh

Year 1 Electric Cost Savings $1,903

Year 1 Maintenance Costs $166

Estimated Year 1 SREC Value: $640 / SREC

Estimated Year 1 SREC Revenue: $5,582

Financial Results

Actual Payback 6.1 years

IRR (25 Years) 15.1%

Net Present Value (25 yrs, 8% discount rate) $22,169

Cost and RebateCost per kW installed $6,000

System Installed Cost $41,400

NJ CEP Rebate ($1/watt for systems < 50 kW) $8,280

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

System Capacity (kW) Coverage (Square Feet) No. of Panels Annual Output (kWh)

Roof Mount 275 3931 1,196 289,837

Install Roof Mount Solar Photovoltaic System(s)

WILLINGBORO TWP - KENNEDY CENTER

Assumptions

System Capacity, kw-dc (maximum utilization of roof space) 275 kw dc

Estimated Annual AC Energy Produced by Proposed Solar PV System 289,837 kwh

Total Annual Facility Electric Use, kwhrs 1,002,720 kwh

Proposed % of Total Annual kWh supplied by Solar PV 29%

All-In Rate for Electric Year 1 $0.162 / kwh

Year 1 Electric Cost Savings $46,954

Year 1 Maintenance Costs $5,500

Estimated Year 1 SREC Value: $640 / SREC

Estimated Year 1 SREC Revenue: $185,400

Financial Results

Actual Payback 8.1 years

IRR (25 Years) 10.2%

Net Present Value (25 yrs, 8% discount rate) $245,178

Cost and RebateCost per kW installed $6,000

System Installed Cost $1,649,928

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

System Capacity (kW) Coverage (Square Feet) No. of Panels Annual Output (kWh)

Roof Mount 54 3931 234 56,726

Install Roof Mount Solar Photovoltaic System(s)

WILLINGBORO TWP - PUBLIC LIBRARY

Assumptions

System Capacity, kw-dc (maximum utilization of roof space) 54 kw dc

Estimated Annual AC Energy Produced by Proposed Solar PV System 56,726 kwh

Total Annual Facility Electric Use, kwhrs 83,261 kwh

Proposed % of Total Annual kWh supplied by Solar PV 68%

All-In Rate for Electric Year 1 $0.202 / kwh

Year 1 Electric Cost Savings $11,459

Year 1 Maintenance Costs $1,076

Estimated Year 1 SREC Value: $640 / SREC

Estimated Year 1 SREC Revenue: $36,286

Financial Results

Actual Payback 7.5 years

IRR (25 Years) 11.5%

Net Present Value (25 yrs, 8% discount rate) $81,043

Cost and Rebate

Cost per kW installed $6,000

System Installed Cost $322,920

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

System Capacity (kW) Coverage (Square Feet) No. of Panels Annual Output (kWh)

Roof Mount 19 3931 84 20,363

Install Roof Mount Solar Photovoltaic System(s)

WILLINGBORO TWP - PUBLIC WORKS BUILDING

Assumptions

System Capacity, kw-dc (maximum utilization of roof space) 19 kw dc

Estimated Annual AC Energy Produced by Proposed Solar PV System 20,363 kwh

Total Annual Facility Electric Use, kwhrs 34,194 kwh

Proposed % of Total Annual kWh supplied by Solar PV 60%

All-In Rate for Electric Year 1 $0.187 / kwh

Year 1 Electric Cost Savings $3,808

Year 1 Maintenance Costs $386

Estimated Year 1 SREC Value: $640 / SREC

Estimated Year 1 SREC Revenue: $13,026

Financial Results

Actual Payback 6.4 years

IRR (25 Years) 14.0%

Net Present Value (25 yrs, 8% discount rate) $42,531

Cost and RebateCost per kW installed $6,000

System Installed Cost $96,600

NJ CEP Rebate ($1/watt for systems < 50 kW) $19,320

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Renewable Energy Technologies: CHP/Cogeneration

CHP (combined heat and power) or cogeneration is the use of a heat engine to simultaneously generate both electricity and useful heat.

Fuel Cells are electrochemical conversion devices that operate by catalysis, separation the protons and the electrons of the reactant fuel, and forcing the electrons to travel through a circuit to produce electricity. The catalyst is typically a platinum group metal or alloy. Another catalytic process takes the electrons back in, combining them with the protons and oxidant, producing waste products (usually water and carbon dioxide).

Microturbines are rotary engines that extract energy from a flow of combustion gas. They can be used with absorption chillers to provide cooling through waste heat rather than electricity. Microturbines are

best suited for facilities with year-round thermal and/or cooling loads.

Not recommended for Township of Willingboro due to the lack of thermal requirements in the summertime.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Utility Tariff and Rate Review: Electricity

Accounts and Rate Class: Willingboro Township has eight facilities with eight electric

accounts with service behind Public Service Electric & Gas, all under various rate classes.

Utility bills were not provided therefore some rate classes were unknown. However most of

the accounts fall under the rate class General Lighting and Power Service (GLP).

Electric Consumption and Cost: Based on the one-year period studied, the total annual

electric expenditure for the Township is about $276,000 and the total annual consumption is

about 1,610,000 kilowatt-hours (kWh).

Average/Effective Rate per kWh: For the one year period studied, the Township’s average

monthly cost per kilowatt-hour ranged from 13.9 ¢/kWh to 22.5 ¢/kWh, inclusive of utility

delivery charges. The Township’s overall, average cost per kilowatt-hour during this period

was 17.1 ¢/kWh.

o Note that these average electric rates are “all–inclusive”; that is, they include all supply service

(generation and commodity-related) charges, as well as all delivery service charges. The supply

service charges typically represent the majority (60-80%) of the total monthly bill. It is the supply

portion of your bill that is deregulated, which is discussed on subsequent slides in this section.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Utility Tariff and Rate Review: Natural Gas

Accounts and Rate Class: Willingboro Township has eight facilities with eight natural gas

accounts behind Public Service Electric and Gas Company under rate classes Large Volume

Gas (LVG) and General Service Gas (GSGH & GSL).

Natural Gas Consumption and Cost: Based on the one-year period studied, the total

annual natural gas expenditure for the Township is about $80,000 and the total annual

consumption is about 59,000 therms (th). Natural gas is used predominantly throughout the

winter period for heating purposes.

Average/Effective Rate per Therm: For the one year period studied, the Township’s

average cost per therm ranged from $1.28 to $1.60 per therm, inclusive of utility delivery

charges. The Township’s overall, average cost per therm during this period was $1.34 per

therm.

o Note that these average natural gas rates are “all–inclusive”; that is, they include all supply service

(interstate transportation and commodity-related) charges, as well as all delivery service charges. The

supply service charges typically represent the majority (60-80%) of the total monthly bill. It is the supply

portion of your bill that is deregulated, which is discussed on subsequent slides in this section.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Utility Deregulation in New Jersey: Background and Retail Energy Purchasing

In August 2003, per the Electric Discount and Energy Competition Act [N.J.S.A 48:3-49], the

State of New Jersey deregulated its electric marketplace thus making it possible for customers

to shop for a third-party (someone other than the utility) supplier of retail electricity.

Per this process, every single electric account for every customer in New Jersey was placed

into one of two categories: BGS-FP or BGS-CIEP. BGS-FP stands for Basic Generation

Service-Fixed Price; BGS-CIEP stands for Basic Generation Service-Commercial and

Industrial Energy Pricing.

At its first pass, this categorization of accounts was based on rate class. The largest electric

accounts in the State (those served under a Primary or a Transmission-level rate class) were

moved into BGS-CIEP pricing. All other accounts (the vast majority of accounts in the State of

New Jersey, including residential) were placed in the BGS-FP category, receiving default

electric supply service from the utility.

The New Jersey Board of Public Utilities (NJBPU) has continued to move new large energy

users from the BGS-FP category into the BGS-CIEP category by lowering the demand (kW)

threshold for electric accounts receiving Secondary service. Several years ago, this threshold

started at 1,500kW; now, it has come down to 1,000 kW. So, if an account’s “peak load share”

(as assigned by the utility) is less than 1,000 kW, then that facility/account is in the BGS-FP

category. If you are unsure, you may contact Dome-tech for assistance.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Utility Deregulation in New Jersey: Background and Retail Energy Purchasing (cont.)

There are at least 3 important differentiating factors to note about each rate category:

1. The rate structure for BGS-FP accounts and for BGS-CIEP accounts varies.

2. The “do-nothing” option (ie, what happens when you don’t shop for retail energy) varies.

3. The decision about whether, and why, to shop for a retail provider varies.

Secondary (small to medium) Electric Accounts:

o BGS-FP rate schedules for all utilities are set, and re-set, each year. Per the results of our State’s BGS

Auction process, held each February, new utility default rates go into effect every year on June 1st. The

BGS-FP rates become each customer’s default rates, and they dictate a customer’s “Price to Compare”

(benchmark) for shopping purposes. To learn more about the BGS Auction process, please go to

www.bgs-auction.com.

o A customer’s decision about whether to buy energy from a retail energy supplier is, therefore, dependent

upon whether a supplier can offer rates that are lower than the utility’s (default) Price to Compare. In

2009, and for the first time in several years, many BGS-FP customers have “switched” from the utility to

a retail energy supplier because there have been savings. This may be the same case in 2010.

Primary (large) Electric Accounts:

o The BGS-CIEP category is quite different. There are two main features to note about BGS-CIEP

accounts that do not switch to a retail supplier for service. The first is that they pay an hourly market

rate for energy; the second is that these accounts also pay a “retail margin adder” of $0.0053/kWh. For

these large accounts, this retail adder can amount to tens of thousands of dollars. The adder is

eliminated when a customer switches to a retail supplier for service.

o For BGS-CIEP accounts, the retail adder makes a customer’s decision about whether to switch

relatively simple. However, the process of setting forth a buying strategy can be complex, which is why

many public entities seek professional assistance when shopping for energy.

o For more information concerning hourly electric market prices for our region, please refer to

www.pjm.com.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Utility Deregulation in New Jersey: Background and Retail Energy Purchasing (cont.)

Natural Gas Accounts:

o The natural gas market in New Jersey is also deregulated. Unlike the electric market, there are no

“penalties”, or “adders”, for not shopping for natural gas. Most customers that remain with the utility for

natural gas service pay rates that are market-based and that fluctuate on a monthly basis. While natural

gas is a commodity that is exceptionally volatile and that is traded minute-by-minute during open trading

sessions, market rates are “settled” each month, 3 business days prior to the subsequent month (this is

called the “prompt month”). Customers that do not shop for a natural gas supplier will typically pay this

monthly settlement rate to the utility, plus other costs that are necessary to bring gas from Louisiana up

to New Jersey and ultimately to your facility.

o For additional information about natural gas trading and current market futures rates for various

commodities, you can refer to www.nymex.com.

o A customer’s decision about whether to buy natural gas from a retail supplier is typically dependent

upon whether a customer seeks budget certainty and/or longer-term rate stability. Customers can

secure longer-term fixed prices by enlisting a retail natural gas supplier. Many larger natural gas

customers also seek the assistance of a professional consultant to assist in their procurement process.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Retail Energy Purchasing: Recommendations and Resources

Electric

o Based on current and recent market conditions, and actual bid processes run by Dome-Tech for various

clients during 2010, we have seen customers with BGS-FP accounts save approximately 10-20% in

projected energy costs by switching to a retail energy supplier. The Township could secure this type of

agreement, this could represent an annual savings of approximately $41,000 for the larger accounts at

the Township. It is important to note that actual rates and potential savings will be dependent on several

factors, including market conditions, account usage characteristics/load profile (load factor), volume, and

contract term. For the period studied, the Township was not utilizing a third party supplier for electricity.

Natural Gas

o Based on current and recent market conditions, and actual bid processes run by Dome-Tech for various

clients during 2010, we have seen many customers entering into longer-term contracts for fixed natural

gas rates. These rates vary substantially based on load type, volume, and term. For the period studied,

the Township was not utilizing a third party supplier for natural gas.

Energy Purchasing Co-Operatives

Many public entities participate in various energy aggregation buying groups. Sometimes, an entity will

have multiple options to choose from. These might include purchasing through a County co-operative,

or purchasing through a trade-type association (for instance, many schools participate in NJASBO’s

ACES program). Co-operative purchasing may not necessarily get you the lowest rates; however, there

is often substantial volume, and it can represent a good alternative for entities with limited energy

consumption who can have a difficult time getting energy suppliers to respond to them on a direct,

singular basis.

To determine whether a savings opportunity currently exists for your entity, or for guidance on how to get

started, you may contact Dome-Tech to discuss. There is also additional information provided below.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Retail Energy Purchasing: Recommendations and Resources (cont.)

To learn more about energy deregulation, visit the New Jersey Board of Public Utilities website:

www.bpu.state.nj.us

For more information about the retail energy supply companies that are licensed and registered

to serve customers in New Jersey, visit the following website for more information:

http://www.bpu.state.nj.us/bpu/commercial/shopping.html

Provided below is a list of NJ BPU-licensed retail energy suppliers:

Company Electricity Natural Gas Website

Hess X X hess.com

Sprague X X spragueenergy.com

UGI X X ugienergyservices.com

South Jersey Energy X X southjerseyenergy.com

Direct X X directenergy.com

Global X X globalp.com

Liberty X libertpowercorp.cm

ConEd Solutions X conedsolutions.com

Constellation X newenergy.com

Glacial X glacialenergy.com

Integrys X integrysenergy.com

Suez X suezenergyresources.com

Sempra X semprasolutions.com

Woodruff X woodruffenergy.com

Mx Energy X mxenergy.com

Hudson X hudsonenergyservices.com

Great Eastern X greateasterngas.com

*Note: Not every Supplier serves customers in all utility territories within New Jersey.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Historical Energy Futures Settlement Prices

Below please find graphs that show the last several years’ worth of market settlement prices for both natural gas and

electricity. Each of these graphs shows the average closing prices of a rolling 12-month period of energy futures

prices. The graphs are representative of the commodity, alone; they do not include any of the additional components

(capacity, transmission, ancillary services, etc.) that comprise a retail energy price. They are meant to provide an

indication of the level of pricing that a particular customer might expect to see, but the graphs do not account for the

specific load profile of any individual energy user.

Henry Hub 12 month strip PJM West 12 month strip

PJM West Electricity - 12 Month Strip

49.5050.10

56.46

102.02

74.2384.08

70.53

62.06

52.10

48.82

0.000

20.000

40.000

60.000

80.000

100.000

120.000

140.000

4/1/2003

6/1/2003

8/1/2003

10/1/2003

12/1/2003

2/1/2004

4/1/2004

6/1/2004

8/1/2004

10/1/2004

12/1/2004

2/1/2005

4/1/2005

6/1/2005

8/1/2005

10/1/2005

12/1/2005

2/1/2006

4/1/2006

6/1/2006

8/1/2006

10/1/2006

12/1/2006

2/1/2007

4/1/2007

6/1/2007

8/1/2007

10/1/2007

12/1/2007

2/1/2008

4/1/2008

6/1/2008

8/1/2008

10/1/2008

12/1/2008

2/1/2009

4/1/2009

6/1/2009

8/1/2009

10/1/2009

12/1/2009

2/1/2010

4/1/2010

Trade Date

$/M

WH

Henry Hub Natural Gas - 12 Month Strip

4.87

8.22

12.71

10.09

7.14

8.62

8.29

13.33

8.10

0.000

2.000

4.000

6.000

8.000

10.000

12.000

14.000

16.000

4/1/2003

6/1/2003

8/1/2003

10/1/2003

12/1/2003

2/1/2004

4/1/2004

6/1/2004

8/1/2004

10/1/2004

12/1/2004

2/1/2005

4/1/2005

6/1/2005

8/1/2005

10/1/2005

12/1/2005

2/1/2006

4/1/2006

6/1/2006

8/1/2006

10/1/2006

12/1/2006

2/1/2007

4/1/2007

6/1/2007

8/1/2007

10/1/2007

12/1/2007

2/1/2008

4/1/2008

6/1/2008

8/1/2008

10/1/2008

12/1/2008

2/1/2009

4/1/2009

6/1/2009

8/1/2009

10/1/2009

12/1/2009

2/1/2010

4/1/2010

Trade Date

$/M

MB

tu

3.9

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Operations & Maintenance

Library - Windows Open while AC is running

Library - Open window while space is being air-conditioned

Issue: Windows open while AC is running.

Impact: Excessive HVAC cost due to outside air infiltration.

Recommendation: Emphasize closing of windows and doors while

AC units are on. Energy Awareness Program.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Operations & Maintenance

Kennedy Center - Repair Roof Access Hatch

Kennedy Center - Open hatch while space is being conditioned

Issue: Damaged roof access hatch is open while HVAC units are

running.

Impact: Excessive HVAC cost due to outside air infiltration.

Recommendation: Repair Roof Access

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Operations & Maintenance

Kennedy Center - Repair Damaged Skylights

Kennedy Center – Cracked Skylight

Issue: Damaged skylights.

Impact: Excessive heating cost due heat loss through skylights.

Recommendation: Repair or Cap skylight.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Operations & Maintenance

Kennedy Center - Repair Window Seals or Replace Windows

Kennedy Center – Damaged Seals

Issue: Worn window seals.

Impact: Excessive heating cost due heat loss through building seals.

Recommendation: Re-caulk or replace seals.

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Operations & Maintenance

A survey of the facilities revealed a mixture of types and sizes of windows, doors

and functionality and condition varied throughout the buildings.

A window and door replacement project would result in a measurable improvement

in heat retention. In addition, increased aesthetic value and occupant comfort

would accompany a window and door project. It should be noted however, that

even an optimized window project can rarely be justified solely on economic

payback.

Because the economics alone are not sufficient to justify implementation, occupant

comfort and aesthetics should be the overriding considerations in moving forward

with this project.

Muncipal Building, Kennedy Center, Department of Public Works, Firehouse

163 – Window and Door ReplacementIssue: Old single pane windows and doors

Impact: Excess heating and cooling cost due heat

loss/ gain through the windows

Recommendation: Install dual pane energy

efficient windows and doors Kennedy Center – Single Pane windows

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Township of Willingboro, Willingboro, NJ FINAL Energy Audit Report, December 2010

Potential Project Funding Sources

Through the NJ Clean Energy program, the New Jersey Board of Public Utilities currently

offers a variety of subsidies or rebates for many of the project types outlined in this report.

More detailed information can be found at: www.njcleanenergy.com

NJ Smart Start Buildings – Equipment Rebates noted in ECMs where available.Equipment Rebates - Water Heaters, Lighting, Lighting Controls/Sensors, Chillers, Boilers, Heat

pumps, Air conditioners, Energy Mgmt. Systems/Building Controls, Motors, Motor-ASDs/VSDs,

Custom/Others http://www.njcleanenergy.com/commercial-industrial/programs/nj-smartstart-

buildings/nj-smartstart-buildings

Pay for Performance Program – Performance-Based Incentives for installations.

Provides up to 50% of total project costs. The Kennedy Center could be provided under this

program up to $50,000 in incentives for project implementation . A minimum reduction target of

15% compared to baseline must be achieved. Energy modeling of building and systems and energy

reduction plan is required (incentives provided to pay for part of study costs.)

Energy Savings Improvement Program (ESIP) Public entities can contract with energy

saving companies in up to 20-year lease purchases enabling public entities to implement energy

conservation measures to their facilities and pay for the costs using the value of energy savings that

result from the improvements.

www.nj.gov/dca/lgs/lfns/09lfns/2009-11.doc

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Potential Project Funding Sources (continued)

Direct Install Program – NJ Clean Energy makes the investment in energy efficiency upgrades by

initially covering 60% of the cost to install the recommended energy efficiency measures. If eligible, the

entity will pay ONLY 40% of the total cost to install the energy efficiency measures.

http://www.njcleanenergy.com/commercial-industrial/programs/direct-install

We encourage you to contact the program directly for further information on this program for all buildings.

Steps to Participate for Buildings

1. CONTACT THE PARTICIPATING CONTRACTOR IN YOUR AREA

Identify the contractor assigned and trained to provide Direct Install services in the county where your project is located. Using the contact

information provided, call or email the Participating Contractor to discuss your project. The contractor will schedule an Energy Assessment and work

with you to complete the Program Application and Participation Agreement. If you’re unable to contact the Participating Contractor or have

questions, you may contact us at 866-NJSMART or send an e-mail to [email protected]..

2. REVIEW RESULTS

After the Energy Assessment, the contractor will review results with you, including what measures qualify and your share of the project cost.

3. DECIDE TO MOVE FORWARD

You will sign a Scope of Work document to proceed with implementation of qualifying measures.

4. ARRANGE INSTALLATION

You and the Participating Contractor will set a convenient start date for the installation.

5. CONFIRM INSTALLATION

Once the Participating Contractor completes the installation, you accept the work by signing a Project Completion Form. A program representative

will approve the project as complete.

6. COMPLETE TRANSACTION

You pay the Participating Contractor your share of the project cost and the program pays its share.

Building Estimated Direct Install Incentive Building Estimated Direct Install Incentive

Municipal Building $20,634 Firehouse 161 $108

Kennedy Center $172,266 Firehouse 162 $18

Library $35,202 Firehouse 163 $108

Public Works Building $3,096

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Potential Project Funding Sources (continued)

Clean Energy Solutions Capital Investment Loan/GrantThe EDA offers up to $5 million in interest-free loans and grants to promote the concept of "going

green" in New Jersey. Under this program, scoring criteria based on the project's environmental and

economic development impact determines the percentage split of loan and grant awarded. Funding

can be used to purchase fixed assets, including real estate and equipment, for an end-use energy

efficiency project, combined heat and power (CHP or cogen) production facility, or new state-of-the-art

efficient electric generation facility, including Class I and Class II renewable Energy.

http://www.njeda.com/web/Aspx_pg/Templates/Npic_Text.aspx?Doc_Id=1078&menuid=1360&topid=72

2&levelid=6&midid=1357

Clean Renewable Energy Bonds (CREBs) – For Renewable Energy ProjectsFederal Loan Program for Solar Thermal Electric, Photovoltaics, Landfill Gas, Wind, Biomass,

Hydroelectric, Geothermal Electric, Municipal Solid Waste, Hydrokinetic Power, Anaerobic Digestion,

Tidal Energy, Wave Energy, Ocean Thermal

http://www.irs.gov/irb/2007-14_IRB/ar17.html

Renewable funding for PV & wind, plus federal credits currently available: http://www.njcleanenergy.com/renewable-energy/programs/renewable-energy-incentive-

program/applications-and-e-forms-renewable-ener

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Next Steps

The following projects should be considered for implementation:

Install Building Management System

Lighting upgrades

Install Energy Efficient Condensing Boilers

Install Computer Management System – Kennedy Center

Vending machine power management

Domestic Hot Water Optimization & Timer – Municipal & Library

Start Energy Awareness Program

Energy Procurement (Electricity & Gas)

Note that additional “Phase 2” engineering may be required to further develop these projects, to

bring them to bidding and implementation.

Consider applying for Direct Install Program

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