Energy Audit - NJ Clean Energy Audit Reports - July 2012/Ewing Township...energy audit was to evaluate the District’s energy consumption, establish baselines for energy efficiency

510 Thornall Street, Suite 170

Edison, NJ 08837

Phone: 732-590-0122

Fax: 732-590-0129

Energy AuditPrepared For:

Ewing Township

School District

Contact Brian S. Falkowski

Business Administrator

Prepared By:

Dome – Tech, Inc.

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

March 2011

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

EWING TOWNSHIP BOARD OF EDUCATIONENERGY 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

Page 2

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

March 21, 2011 Mr. Brian Falkowski School Business Administrator / Board Secretary Ewing Township Board of Education 1331 Lower Ferry Road Ewing, NJ 08618 Re: EXECUTIVE SUMMARY FOR EWING TOWNSHIP BOARD OF EDUCATION STATE OF NEW JERSEY LOCAL GOVERNMENT ENERGY AUDIT Dear Mr. Falkowski: Dome-Tech was retained by Ewing Township Board of Education, 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 District’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 data received for the twelve (12) month period September 2009 – October 2010, for the facilities included in this study, the District had an annual expenditure of:

Electricity: 6,911,252 kWh at a total cost of $ 1,094,427.02

Natural Gas: 342,668 therms at a total cost of $ 363,708.37 The following seven (7) buildings were evaluated under this study:

William Antheil Elementary School 111,938 SF

Parkway Elementary School 67,419 SF

Francis Lore Elementary School 71,571 SF

Gilmore J Fisher Middle School 152,751 SF

Ewing High School 202,755 SF

Ryan Administration Building 4,191 SF

Gusz Maintenance Building 24,760 SF

Page 3

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 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 the Ewing Township Board of Education:

Total annual electrical savings: 1,779,740 kilowatt-hours; 26%

Total annual natural gas savings: 113,445 therms of natural gas usage; 33%

Total annual cost savings: $371,585; 26%

Total annual CO2 emissions reduction: 1,252 tons

Total net estimated implementation cost: $1,975,790

Total average simple payback: 5.3 years A summary of the projects that are recommended for implementation (at all facilities) includes: installing programmable controls and timers on exhaust fans, boilers, and water heaters; installing vending machine and personal computer power management devices; implementing a steam trap preventative maintenance program; replacing electric water heaters with gas fired units; removing and weatherizing unused exhaust fans, skylights, and window AC units; winterizing remaining window AC units; upgrading attic and piping insulation, upgrading lighting; replacing equipment and control systems; and implementing an energy awareness program. Please see the report for a full list of recommended ECM’s. The District’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. For the District’s buildings that were eligible for an Energy Star score, the scores ranged between 22 and 54. In order to receive an Energy Star rating, more than 50% of a 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. Some of the buildings were not eligible for a score; as an alternate, the average Source EUI was provided. 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. Ground Mounted is not possible for these buildings due to space constraints and the surrounding buildings. The Building-mounted wind turbine project appears to be the only technically viable option but we would not recommend it due to payback and high noise concerns. Should the District decide to pursue a wind turbine project, Dome-Tech recommends commissioning a more detailed study.

Roof-mounted photovoltaic systems, ranging in size from 88 - 270 kw dc, could provide approximately 42% per building of the District’s annual energy usage was assessed for implementation at each site.

CHP (Combined Heat and Power), Fuel Cells, and Micro-turbines were also considered and not recommended for any of the buildings.

Regarding the procurement of utilities, Dome-Tech understands that the Ewing Township Board of Education facilities in this study are served by nine electric accounts behind PSE&G and nine natural gas accounts behind PSE&G Natural gas under a variety rate classes. Dome-Tech understands that the District is currently under contract with a retail energy supplier for both electric and natural gas through the ACES Program.

Page 4

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

Page 5

EWING TOWNSHIP BOE - ECM Sorted by payback Prepared by Dome-Tech, Inc.

Energy Conservation Measures (ECM) Buildings

Gross

Installation

Costs*

Rebates/

Incentive Avoided Cost

Net

Implementation

Costs

Annual

Energy

Cost

Savings

Annual

Oper.

Cost

Savings

Total

Annual

Cost

Savings

Simple Pay

Back

Internal

Rate of

Return

(IRR)

Measure

Life Lifecycle Savings

CO2

Savings

(lbs)

kWh kW Therms

1 Optimize Time Clock Fredrick Ryan Administration Building 16,070 0.00 390 $200 $0 $0 $200 $3,010 $0 $3,010 0.11505.0%

15 $35,733 8

2 Time of Day Optimization Ewing High School 182,990 0.00 6,240 $4,000 $0 $0 $4,000 $35,340 $0 $35,340 0.1883.5%

15 $417,887 97

2 Time of Day Optimization Francis Lore Elementary School 107,910 0.00 3,670 $4,000 $0 $0 $4,000 $21,140 $0 $21,140 0.2528.5%

15 $248,368 57

2 Time of Day Optimization Fisher Middle School 85,060 0.00 2,120 $4,000 $0 $0 $4,000 $15,770 $0 $15,770 0.3394.2%

15 $184,261 41

2 Time of Day Optimization Parkway Elementary School 12,200 0.00 300 $1,600 $0 $0 $1,600 $2,270 $0 $2,270 0.7141.9%

15 $25,499 6

2 Time of Day Optimization William Antheil Elementary School 2,880 0.00 40 $1,080 $0 $0 $1,080 $510 $0 $510 2.147.1%

15 $5,008 1

3 Shut down Chilled water Pumps Ewing High School 27,990 3.95 0 $540 $0 $0 $540 $4,370 $0 $4,370 0.1809.3%

15 $51,629 9

4 Programmable Thermostat Gusz Maintenance Building 6,360 0.00 0 $300 $0 $0 $300 $3,390 $0 $3,390 0.11130.0%

15 $40,170 2

5 AHU-1 Controls Upgrade (Fixed Dampers) Ewing High School 2,340 0.00 2,120 $400 $0 $0 $400 $2,670 $0 $2,670 0.1667.5%

15 $31,474 13

6 Shut Down Hot Water Pumps - to Science Wing Ewing High School 7,690 1.09 0 $540 $0 $0 $540 $1,200 $0 $1,200 0.5222.2%

15 $13,786 3

7 DHW Optimization Fisher Middle School 660 0.00 0 $50 $0 $0 $50 $100 $0 $100 0.5199.6%

15 $1,142 0

8 CO2 Sensors out of Calibration Ewing High School 2,180 0.00 1,140 $800 $0 $0 $800 $1,580 $0 $1,580 0.5197.5%

15 $18,062 7

9 Setpoint Optimization Ewing High School 13,960 0.00 6,290 $5,570 $0 $0 $5,570 $9,020 $0 $9,020 0.6161.9%

15 $102,110 41

10 Install Vending Machine Power Management Ewing High School 3,530 0.07 0 $540 $0 $0 $540 $550 $0 $550 1.0101.8%

15 $6,026 1

10 Install Vending Machine Power Management Francis Lore Elementary School 1,180 0.02 0 $180 $0 $0 $180 $190 $0 $190 0.9105.6%

15 $2,088 0

10 Install Vending Machine Power Management William Antheil Elementary School 1,180 0.02 0 $180 $0 $0 $180 $190 $0 $190 0.9105.3%

15 $2,083 0

10 Install Vending Machine Power Management Fisher Middle School 4,710 0.10 0 $720 $0 $0 $720 $750 $0 $750 1.0104.2%

15 $8,233 2

10 Install Vending Machine Power Management Parkway Elementary School 2,355 0.05 0 $360 $0 $0 $360 $370 $0 $370 1.0102.8%

15 $4,057 1

10 Install Vending Machine Power Management Gusz Maintenance Building 1,180 0.02 0 $180 $0 $0 $180 $170 $0 $170 1.194.4%

15 $1,849 0

11 Holiday Time of Day Optimization Ewing High School 21,730 0.00 760 $4,000 $0 $0 $4,000 $4,210 $0 $4,210 1.0105.2%

15 $46,259 12

11 Holiday Time of Day Optimization Fisher Middle School 29,330 0.00 690 $4,000 $0 $0 $4,000 $5,390 $0 $5,390 0.7134.7%

15 $60,345 14

11 Holiday Time of Day Optimization Parkway Elementary School 10,540 0.00 250 $1,600 $0 $0 $1,600 $1,950 $0 $1,950 0.8121.9%

15 $21,679 5

11 Holiday Time of Day Optimization Francis Lore Elementary School 11,460 0.00 390 $4,000 $0 $0 $4,000 $2,250 $0 $2,250 1.856.2%

15 $22,860 6

11 Holiday Time of Day Optimization William Antheil Elementary School 4,400 0.00 40 $2,230 $0 $0 $2,230 $750 $0 $750 3.033.2%

15 $6,723 2

12 Insulate Condensate Return tank Ewing High School 0 0.00 280 $360 $0 $0 $360 $310 $0 $310 1.286.1%

15 $3,341 2

13 Install Door Closer Ewing High School 240 0.00 30 $125 $0 $0 $125 $70 $0 $70 1.855.9%

15 $711 0

13 Install Door Closer William Antheil Elementary School 240 0.00 30 $125 $0 $0 $125 $70 $0 $70 1.855.9%

15 $711 0

14 Disable / Shut down Chiller in Heating Season Ewing High School 8,100 1.34 0 $3,200 $0 $0 $3,200 $1,300 $0 $1,300 2.540.4%

15 $12,319 3

15 Heat Pump Upgrade Ewing High School 24,755 4.10 0 $139,260 $7,150 $119,660 $12,450 $3,900 $0 $3,900 3.230.8%

15 $34,108 8

16 Install Timers on Domestic Hot Water Heaters Gusz Maintenance Building 310 0.01 0 $160 $0 $0 $160 $50 $0 $50 3.230.7%

15 $437 0

16 Install Timers on Domestic Hot Water Heaters Fredrick Ryan Administration Building 310 0.01 0 $160 $0 $0 $160 $50 $0 $50 3.230.6%

15 $435 0

17

Replace existing Boiler with Modular Condensing

Boiler Ewing High School 0 0.00 33,620 $761,550 $15,000 $636,800 $109,750 $36,580 $0 $36,580 3.033.2%

20 $434,468 197

17


Boiler Francis Lore Elementary School 0 0.00 11,645 $197,440 $3,000 $167,440 $27,000 $12,270 $0 $12,270 2.245.4%

20 $155,547 68

17


Boiler Parkway Elementary School 0 0.00 7,450 $197,440 $5,000 $167,440 $25,000 $8,120 $0 $8,120 3.132.4%

20 $95,805 44

17


Boiler Fisher Middle School 0 0.00 24,260 $579,580 $4,000 $479,580 $96,000 $24,720 $0 $24,720 3.925.5%

20 $271,771 142

17


Boiler Gusz Maintenance Building 0 0.00 3,420 $109,910 $2,000 $90,260 $17,650 $3,960 $0 $3,960 4.522.0%

20 $41,265 20

17


Boiler Fredrick Ryan Administration Building 0 0.00 1,000 $65,845 $1,500 $48,870 $15,480 $1,170 $0 $1,170 13.24.3%

20 $1,927 6

Page 1 Page 6



Gross

Installation

Costs*

Rebates/


Net

Implementation

Costs

Annual

Energy

Cost

Savings

Annual

Oper.

Cost

Savings

Total

Annual

Cost

Savings

Simple Pay

Back

Internal

Rate of

Return

(IRR)

Measure


CO2

Savings

(lbs)

kWh kW Therms

18 Chiller Upgrade Ewing High School 8,970 1.48 0 $123,060 $3,120 $114,060 $5,880 $1,400 $0 $1,400 4.222.7%

15 $10,833 3

19 RTU Upgrade Fisher Middle School 2,240 0.37 0 $24,310 $930 $22,010 $1,370 $400 $0 $400 3.428.5%

15 $3,405 1

19 RTU Upgrade Fredrick Ryan Administration Building 4,220 0.70 0 $58,950 $1,780 $54,500 $2,670 $700 $0 $700 3.825.3%

15 $5,687 1

19 RTU Upgrade Francis Lore Elementary School 2,690 0.44 0 $31,250 $1,175 $28,350 $1,725 $400 $0 $400 4.322.0%

15 $3,050 1

19 RTU Upgrade Ewing High School 16,650 2.76 0 $200,190 $7,780 $180,490 $11,920 $2,600 $0 $2,600 4.620.5%

15 $19,119 6

19 RTU Upgrade Gusz Maintenance Building 1,370 0.23 0 $19,000 $1,110 $16,200 $1,690 $200 $0 $200 8.58.2%

15 $698 0

19 RTU Upgrade William Antheil Elementary School 1,070 0.18 0 $16,700 $890 $14,500 $1,310 $200 $0 $200 6.612.7%

15 $1,078 0

20 Premium Efficient Motors Ewing High School 3,850 0.54 0 $2,480 $225 $0 $2,255 $600 $0 $600 3.825.8%

15 $4,908 1

20 Premium Efficient Motors Parkway Elementary School 2,770 0.39 0 $2,080 $110 $0 $1,970 $440 $0 $440 4.521.1%

15 $3,283 1

20 Premium Efficient Motors Francis Lore Elementary School 850 0.12 0 $780 $100 $0 $680 $140 $0 $140 4.919.1%

15 $991 0

20 Premium Efficient Motors William Antheil Elementary School 680 0.10 0 $1,260 $90 $0 $1,170 $110 $0 $110 10.74.6%

15 $137 0

21 Weatherstripping Gusz Maintenance Building 1,270 0.00 140 $700 $0 $0 $700 $350 $0 $350 2.049.1%

10 $2,288 1

21 Weatherstripping Francis Lore Elementary School 240 0.00 30 $350 $0 $0 $350 $70 $0 $70 5.015.1%

10 $247 0

21 Weatherstripping Ewing High School 2,620 0.00 290 $3,850 $0 $0 $3,850 $720 $0 $720 5.313.4%

10 $2,292 3

21 Weatherstripping Parkway Elementary School 240 0.00 30 $350 $0 $0 $350 $70 $0 $70 5.015.1%

10 $247 0

21 Weatherstripping William Antheil Elementary School 1,190 0.00 130 $1,750 $0 $0 $1,750 $330 $0 $330 5.313.6%

10 $1,065 1

21 Weatherstripping Fisher Middle School 710 0.00 80 $1,050 $0 $0 $1,050 $195 $0 $195 5.413.1%

10 $610 1

22 Remove, Cap and Insulate Exhaust fans William Antheil Elementary School 180 0.00 70 $550 $0 $0 $550 $100 $0 $100 5.516.2%

15 $639 0

22 Remove, Cap and Insulate Exhaust fans Ewing High School 640 0.00 230 $1,960 $0 $0 $1,960 $350 $0 $350 5.615.9%

15 $2,218 2

23 Lighting Upgrades Ewing High School 281,160 81.93 0 $285,720 $12,815 $0 $272,910 $44,990 $0 $44,990 6.13.7%

7 $7,390 93

23 Lighting Upgrades Fisher Middle School 175,880 54.20 0 $205,820 $8,340 $0 $197,480 $28,140 $0 $28,140 7.0-0.1%

7 -$22,160 58

23 Lighting Upgrades

William Antheil Elementary

School 97,110 32.97 0 $142,000 $7,130 $0 $134,870 $15,540 $0 $15,540 8.7-5.1%

7 -$38,051 32


Francis Lore Elementary

School 93,230 31.00 0 $123,440 $3,785 $0 $119,660 $14,920 $0 $14,920 8.0-3.3%

7 -$26,704 31

23 Lighting Upgrades Parkway Elementary School 96,335 31.07 0 $107,350 $4,080 $0 $103,270 $15,410 $0 $15,410 6.71.1%

7 -$7,261 32


Fredrick Ryan Adminstration

Building 6,900 2.99 0 $8,290 $120 $0 $8,170 $1,110 $0 $1,110 7.4-1.2%

7 -$1,254 2

23 Lighting Upgrades Gusz Maintenance Building 281,200 12.50 0 $43,370 $3,055 $0 $40,320 $4,710 $0 $4,710 8.6-4.8%

7 -$10,975 93

24

Upgrade kitchen appliances to Energy Star

appliances Ewing High School 30,850 2.49 0 $37,710 $0 $0 $37,710 $5,530 $0 $5,530 6.812.0%

15 $28,307 10

24


appliances William Antheil Elementary School 10,480 0.85 0 $12,550 $0 $0 $12,550 $1,810 $0 $1,810 6.911.7%

15 $9,058 3

24


appliances Parkway Elementary School 4,810 0.39 0 $6,230 $0 $0 $6,230 $880 $0 $880 7.111.3%

15 $4,275 2

24


appliances Francis Lore Elementary School 7,880 0.64 0 $11,350 $0 $0 $11,350 $1,400 $0 $1,400 8.18.9%

15 $5,363 3

24


appliances Fisher Middle School 10,450 0.84 0 $17,660 $0 $0 $17,660 $1,880 $0 $1,880 9.46.5%

15 $4,783 3

25 Replace existing window AC units Ewing High School 150 0.02 0 $250 $0 $0 $250 $20 $0 $20 12.52.4%

15 -$11 0

25 Replace existing window AC units Fredrick Ryan Administration Building 150 0.02 0 $200 $0 $0 $200 $20 $0 $20 10.05.6%

15 $39 0

25 Replace existing window AC units Gusz Maintenance Building 610 0.09 0 $1,000 $0 $0 $1,000 $90 $0 $90 11.14.1%

15 $80 0

26 Demand Control Ventilation Ewing High School 7,560 0.00 4,210 $29,250 $0 $0 $29,250 $6,490 $0 $6,490 4.520.9%

15 $48,227 27

26 Demand Control Ventilation Francis Lore Elementary School 5,620 0.00 550 $23,400 $0 $0 $23,400 $1,620 $0 $1,620 14.40.5%

15 -$4,061 5

26 Demand Control Ventilation Fisher Middle School 7,440 1.00 910 $40,950 $0 $0 $40,950 $2,120 $0 $2,120 19.3-3.0%

15 -$15,642 8

26 Demand Control Ventilation Parkway Elementary School 2,160 0.00 310 $23,400 $0 $0 $23,400 $680 $0 $680 34.4-8.9%

15 -$15,282 3

26 Demand Control Ventilation William Antheil Elementary School 2,210 1.00 380 $23,400 $0 $0 $23,400 $680 $0 $680 34.4#DIV/0!

15 -$15,282 3

Page 2 Page 7



Gross

Installation

Costs*

Rebates/


Net

Implementation

Costs

Annual

Energy

Cost

Savings

Annual

Oper.

Cost

Savings

Total

Annual

Cost

Savings

Simple Pay

Back

Internal

Rate of

Return

(IRR)

Measure


CO2

Savings

(lbs)

kWh kW Therms

27 Install Supply Fan VFDs Ewing High School 2,820 1.39 0 $5,910 $0 $0 $5,910 $440 $0 $440 13.41.4%

15 -$657 1

28 Walk In Freezer Controls Upgrade Gusz Maintenance Building 900 0.07 0 $1,170 $0 $0 $1,170 $140 $0 $140 8.48.4%

15 $501 0

28 Walk In Freezer Controls Upgrade Ewing High School 300 0.02 0 $920 $0 $0 $920 $50 $0 $50 18.4-2.5%

15 -$323 0

28 Walk In Freezer Controls Upgrade Parkway Elementary School 900 0.07 0 $2,340 $0 $0 $2,340 $150 $0 $150 15.6-0.5%

15 -$549 0

28 Walk In Freezer Controls Upgrade Fisher Middle School 300 0.02 0 $920 $0 $0 $920 $50 $0 $50 18.4-2.5%

15 -$323 0

29 Convert kitchen electric fuel switch to natural gas Fisher Middle School 7,200 0.58 -290 $9,430 $0 $0 $9,430 $860 $0 $860 11.04.2%

15 $837 1

29 Convert kitchen electric fuel switch to natural gas Ewing High School 3,990 0.32 -160 $8,740 $0 $0 $8,740 $450 $0 $450 19.4-3.1%

15 -$3,368 0

30

Upgrade Boiler Controls system, install VFD on FD

Fan Motor Ewing High School 8,860 0.00 0 $90,000 $0 $0 $90,000 $4,140 $0 $4,140 21.71.1%

25 -$17,910 3

31 Upgrade Windows Fredrick Ryan Administration Building 1,270 0.00 460 $221,830 $0 $0 $221,830 $740 $0 $740 299.8-14.0%

25 -$208,944 3

31 Upgrade Windows Gusz Maintenance Building 795 0.00 290 $138,970 $0 $0 $138,970 $450 $0 $450 308.8-14.1%

25 -$131,134 2

Totals TOTALS 1,779,740 274.58 113,445 $4,210,215 $94,285 $2,140,160 $1,975,790 $371,585 $0 $371,585 5.3 17% 15 $2,387,957.42 1,252

Page 3 Page 8

Ewing Township Board of Education, Ewing ,NJ FINAL Energy Audit Report, March 2011

Energy Audit Purpose & Scope

Purpose:

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

establish baselines for energy efficiency 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

Page 9


Historic Energy Consumption

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

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

AccountAnnual

ConsumptionAnnual Cost $ / kWh Account

Annual

ConsumptionAnnual Cost $ / Therms

42 006 465 01 1,166,308 $187,391.45 $0.161 42 006 465 01 53,788 $56,371.90 $1.048

42 006 465 01 5,212 $5,382.03 $1.033

42 006 499 18 835,600 $132,528.91 $0.159 42 006 499 18 26,892 $29,324.03 $1.090

42 008 436 09 653,400 $104,392.06 $0.160 42 008 436 09 42,013 $44,266.08 $1.054

42 007 970 03 1,671,019 $267,507.97 $0.160 42 007 970 03 78,057 $79,537.55 $1.019

66 854 865 03 35,615 $6,206.08 $0.174 66 854 865 03 11,657 $11,614.80 $0.996

42 004 470 02 1,583,202 $241,897.09 $0.153 66 854 865 03 109,001 $118,578.43 $1.088

42 003 917 08 682,802 $111,914.86 $0.164

66 373 371 02 60,666 $9,655.88 $0.159 66 373 371 02 3,826 $4,474.18 $1.169

66 018 700 05 222,640 $32,932.72 $0.148 66 018 700 05 12,222 $14,159.37 $1.159

TOTAL 6,911,252 $1,094,427.02 $0.158 TOTAL 342,668 363,708.37$ $1.061

Ewing High School

Natural Gas

Buildings

Electric

Parkway Elementary School

Francis Lore Elementary

School

Gilmore J Fisher Middle

School

Ryan Administration

Building

Gusz Maintenance Building

William Antheil Elementary

School

Page 10


Historic Energy Consumption

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

Building label.

Due to inefficient HVAC design of the high school, middle school and elementary schools and older

outdated HVAC units, it will be difficult for these buildings to achieve the energy star label.

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

*

William Antheil Elementary School 111,938 44 NA 84.7 161.9

Parkway Elementary School 67,419 47 NA 84.4 183.7

Francis Lore Elementary School 71,571 54 NA 94.4 169.2

Gilmore J Fisher Middle School 152,751 27 NA 91.6 182.1

Ewing High School 202,755 22 NA 103.2 198

Ryan Administration Building 4,191 NA ** NA 140 258.3 265 - Public

Gusz Maintenance Building 24,760 NA * NA 84.2 158.3 150 - Service

**Note for Office Gross Floor Area must be greater than or equal to 5000

* 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 buidling category list

Page 11


Historic Energy Consumption (continued)

Portfolio Manager Sign - In

An account has been created for Ewing Township School District in Portfolio

Manager. You will 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 district’s

information is currently shared as read only.

When the report is finalized the shared access will be changed so that 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: EwingBOE

Password: DTEwingBOE

Email for account: [email protected]

Page 12

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Facility Information

Building Name: Ewing High School

Address: 900 Parkway Avenue

Ewing, NJ 08618

Gross Floor Area: 202,755 sf

Year Built: 1950 (renovations in 1962, 1992, 2002)

# Occupants: 1100 students, 145 staff members, 12 maintenance workers

Usage: The building is a school serving grades 9-12. It is operated M-F from 7 am

until 2:30 pm for the students, and until 11:30 pm for staff and custodians.

The building is also open on Saturdays for sporting events from 7 am until

3:30 pm and on Sundays from 7 am until 12 pm. Closed holidays.

Construction Features:Facade: Two story, brick, in good condition

Roof Type: Flat, gray, metal deck, ballasted river rock, in good condition (science wing

has a white roof)

Windows: Covering approximately 20% of façade, metal frame, operable,

blinds, in good condition

Exterior Doors: Approximately 30, metal frame, fiberglass and metal, in good condition

Page 13



Major Mechanical Systems – Ewing High SchoolAir Handlers / AC Systems / Ventilation Systems

Ewing High School has several air handling units (AHUs) for conditioning larger spaces and the science wing (science

wing AHU is equipped with a vortex damper); these AHU’s have chilled water coils for cooling and hot water coils for

heating. The AHU’s supply conditioned air to the two gyms, library and auditorium. The packaged rooftop units are

equipped with direct expansion (Dx) Cooling and heating hot water coils for the smaller classroom and office spaces

and gas reheat for the larger classroom spaces. The perimeter spaces are served by unit ventilators (UV) , fan coil

units (FCU) and unit heaters (UH) and are equipped with hot water coils for heating. The newer science wing

classrooms have variable volume boxes (VAV’s) and are equipped with chilled water for cooling and hot water coils for

heating. Approximately 60 exhaust fans exhaust from areas including mechanical/boiler rooms, toilets, and offices.

Boilers

There are two (2) Cleaver Brooks, fire-tube boilers, natural gas fired, steam boilers with 12,553 MBH capacity each.

These boilers operate in a lead lag sequence. There is a steam to hot water shell and tube heat exchanger that

supplies hot water to the building. The boilers are served by four pumps; two (2) 25-HP heating hot water pumps that

operate in a lead lag sequence and supplies hot water to the main section of the school and two (2) 5-HP heating hot

water pumps that operate in a lead lag sequence and supplies hot water to the science wing of the school.

Chillers

The science wing has two (2) Trane – 30 ton air-cooled chillers. These chillers operate in a lead lag sequence. These

chillers are served by two (2) 5-HP chilled water pumps that operate in a lead lag sequence. The auditorium and gym

has three (3) Trane – ( 1- 20 ton and 2- 25 ton) air-cooled chillers. These chillers are served by two (2) 5-HP chilled

water pumps that operate in a lead lag sequence.

Domestic Hot Water

There is a hot water storage tank served by a hot water heat exchanger that supplies domestic hot water to the

building that is approximately 300 gals. There are two (2) A.O. Smith, natural gas fired, domestic hot water heaters

one serves the kitchen and the other serves the science wing.

Controls

The buildings’ heating and cooling equipment are controlled by a Building Management System (BMS) .

Page 14



Building Name: Gilmore Fisher Middle School

Address: 1325 Lower Ferry Road

Ewing, NJ 08618


Year Built: 1950 (renovations in 1962, 1992, 2002)

# Occupants: 930 students, 100 staff members

Usage: The building is a school serving grades 6-8. It is operated M-F from 8:30am

until 3 pm for the students, and until midnight for staff and custodians.

The building is also open on Saturdays from 8 am until 4:30 pm. Closed

Sundays and holidays.


Roof Type: Flat, gray, wood deck, ballasted river rock, in good condition

Windows: Covering approximately 20% of façade, metal frame, dual pane, operable,

blinds, in excellent condition

Exterior Doors: Approximately 30, metal frame, single pane, in excellent condition

Page 15



Major Mechanical Systems – Gilmore Fisher Middle SchoolAir Handlers / AC Systems / Ventilation Systems

Gilmore Fisher Middle School has constant volume air handling units (AHUs) that are equipped with chilled water coils

for cooling and hot water coils for heating. There are two packaged rooftop units that serve the offices and are

equipped with direct expansion (DX) coils for cooling . There are two (2) – heat recovery units (HRUs) rated for

approximately 4,000 CFM that serves the building. The perimeter spaces are served by unit ventilators (UV) , fan coil

units (FCU) and unit heaters (UH) and are equipped with chilled water coils and hot water coils for heating.

Approximately 15 exhaust fans, exhaust from areas including mechanical/boiler rooms, toilets, and offices.

Boilers

There are two (2) Cleaver Brooks, Fire-tube, natural gas fired, hot water boilers with 10,461 MBH capacity each.

These boilers operate in a lead lag sequence. The boilers are served by six pumps; two (2) 15-HP heating hot water

pumps that operate in a lead lag sequence and are equipped with a VFD that supplies hot water to the P&D wing;

one (1) 3-HP heating hot water pump that supplies hot water to the A wing of the school; one (1) 3-HP heating hot

water pump that supplies hot water to the Auditorium wing of the school; one (1) 7.5-HP heating hot water pump that

supplies hot water to the C wing of the school; and one (1) 5-HP heating hot water pump that supplies hot water to the

A and B wing of the school;

Chillers

The building has one (1) Trane – 450 ton air-cooled chiller. This chiller has 11 thermal ice storage tanks for off-peak

thermal ice storage. These chillers are served by two (2) 100-HP chilled water pumps that operate in a lead lag

sequence.

Domestic Hot Water

There is one (1) A.O. Smith , natural gas fired, domestic hot water heaters rated for 420 kbtuh.

Controls


Page 16



Building Name: Ryan Administration Building

Address: 1331 Lower Ferry Road

Ewing, NJ 08618


Year Built: 1962

# Occupants: 15 staff members

Usage: The building houses administrative personnel that serve the school system.

It is operated M-F from 8 am until 4:30 pm; closed weekends and holidays.

Construction Features:Facade: Single story, brick, in good condition

Roof Type: Flat, gray, wood deck, built up, in good condition

Windows: Covering approximately 20% of façade, metal frame, single pane, operable,


Exterior Doors: Approximately 3, metal frame, single pane, in good condition

Page 17



Major Mechanical Systems – Ryan Administration BuildingAir Handlers / AC Systems / Ventilation Systems

Ryan Administration Building has constant volume split system units that are equipped with direct expansion (DX)

coils for cooling and hot water coils for heating; one is rated for 7.5 tons and the other is rated for15-tons. The

perimeter spaces are served by hot water fin-tube radiation coils for heating.

Boilers

There is one (1) Weil-McLain, Cast Iron sectional, natural gas fired, hot water boiler with a capacity of 718 MBH. The

boilers are served by two (2) 15-HP heating hot water pumps and operates in a lead lag sequence.

Domestic Hot Water

There are one (1) Bradford White, Electric, domestic hot water heaters rated for 1.5 kW. During the heating season,

domestic hot water is heated via a heat exchanger from the boiler.

Controls

The buildings’ heating and cooling equipment are controlled by a time clock and pneumatic based controls.

Page 18



Building Name: Gusz Maintenance Building

Address: 220 Ewingville Road

Ewing, NJ 08618


Year Built: 1958

# Occupants: 38 staff members

Usage: The building houses the transportation administration offices, buildings and

grounds personnel, an IT server, supplies, and some food service

equipment for the school system. It is operated M-F from 7 am until 3:30pm

and is closed weekends and holidays.

Construction Features:Facade: Single story, block, in good condition

Roof Type: Flat, black, metal deck, tar and river rock, built up, in good condition

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

operable, in fair condition

Exterior Doors: Approximately 3 metal doors, 2 aluminum garage bay doors, and 3 wood

garage bay doors, in fair condition

Page 19



Major Mechanical Systems – Gusz Maintenance BuildingAir Handlers / AC Systems / Ventilation Systems

Gusz Maintenance Building has four (4) constant volume split system units that are equipped with direct expansion

(DX) coils for cooling, electric heating coil for heating and is rated for approximately 3-tons. There are three (3)

constant volume packaged rooftop units (RTU’s) that are equipped with direct expansion (DX) coils for cooling and

natural gas fired for heating, One RTU is rated for 4 tons and two are rated for 5 tons. The storage and garage spaces

are served by fan coil units (FCUs) equipped with hot water coils for heating.

Boilers

There is one (1) Weil-McLain, Cast Iron sectional natural gas fired hot water boiler with a capacity of 2,049 MBH. The

boilers are served by eight (8) 1/4-HP heating hot water pumps that suppliy hot water to the building.

Domestic Hot Water

There are one (1) AO Smith, natural gas fired, domestic hot water heater rated 120 kbtuh.

Controls

The buildings’ heating and cooling equipment are controlled manually by non-programmable thermostats.

Page 20



Building Name: Francis Lore Elementary School

Address: 13 Westwood Drive

Ewing, NJ 08618


Year Built: 1962 (renovations in 1992 and 2001)


Usage: The building is a school serving grades K-5. It is operated M-F from 7 am

until 3:40 pm for the students, and until 11 pm for staff and custodians.

Closed weekends and holidays.

Construction Features:Facade: Single story, brick, in good condition

Roof Type: Flat (with the exception of the gymnasium), gray and white, metal deck,

built up (white roofs are river rock and asphalt), in good condition

Windows: Covering approximately 20% of façade, metal frame, dual pane, operable,


Exterior Doors: Approximately 20, fiberglass, dual pane, in good condition

Page 21



Major Mechanical Systems – Francis Lore Elementary SchoolAir Handlers / AC Systems / Ventilation Systems

Francis Lore Elementary School has an air handling unit (AHU) that serves the cafeteria and is equipped with a hot

water coil for heating. There are packaged rooftop units that are equipped with direct expansion (DX) coils for cooling

and hot water coils for heating and serve classrooms and offices. There are two (2) constant volume split system units

that are equipped with direct expansion coils for cooling and hot water coils for heating; one is rated for 7.5 tons and

the other is rated for 15-tons. These supply conditioned air to the gym, library, computer room and classrooms. The

perimeter spaces are served by unit ventilators (UV’s) that are equipped with hot water coils for heating.

Approximately 17 exhaust fans, exhaust from areas including mechanical/boiler rooms, toilets, and offices.

Boilers

There are two (2) Cleaver Brooks natural gas fire-tube hot water boilers with each with a capacity of 2,511 MBH.

These boilers operate in a lead lag sequence. The boilers are served by four pumps; two (2) 3-HP heating hot water

pumps that operate in a lead lag sequence that supply hot water to the main section of the school and two (2) 1.5-HP

heating hot water pumps that operate in a lead lag sequence that supply hot water to the new addition of the school.

Domestic Hot Water

There is one (1) A.O. Smith, natural gas fired, domestic hot water heater rated for 199 kbtuh.

Controls

The building’s heating and cooling equipment are controlled by a Building Management System (BMS) .

Page 22



Building Name: William Antheil Elementary School

Address: 339 Ewingville Road

Ewing, NJ 08618


Year Built: 1959 (renovations in 1962 and 2002)


Usage: The building is a school serving grades PreK-5. It is operated M-F from

7 am until 11 pm, closed weekends and holidays.


Roof Type: Flat, gray, metal deck, asphalt and river rock, built up, in good condition

Windows: Covering approximately 20% of façade, metal frame, operable, dual pane,


Exterior Doors: Metal frame, fiberglass, in good condition

Page 23



Major Mechanical Systems – William Antheil Elementary SchoolAir Handlers / AC Systems / Ventilation Systems

William Antheil Elementary School has air handling units (AHUs) that supplies conditioned air to the gym, library,

cafeteria, multi-purpose room, auditorium and classrooms. These AHU’s have chilled water coils for cooling and hot

water coils for heating. There are three (3) packaged rooftop units that are equipped with direct expansion (DX) coils

for cooling and heating hot water coils for the office, child study and conference room. There is a make-up air unit

that supplies conditioned air to the kitchen and is equipped with a hot water coil for heating. The perimeter spaces are

served by unit ventilators (UV) and fan coil units (FCU) that are equipped with hot water coils for heating. The newer

science wing classrooms have variable volume boxes (VAV’s) that are equipped with chilled water for cooling and hot

water coils for heating. Approximately 32 exhaust fans exhaust from areas including mechanical/boiler rooms, toilets,

and offices.

Boilers

There are two (2) Hurst, fire-tube, natural gas fired, hot water boilers with 2,459 MBH capacity each. These boilers

operate in a lead lag sequence. The boilers are served by two (2) 10-HP heating hot water pumps that operate in a

lead lag sequence that supply hot water to the main section of the school.

Chillers

The building has (1) McQuay – 350 ton air-cooled chiller. These chillers operate in a lead lag sequence. These

chillers are served by two (2) 75-HP chilled water pumps that operate in a lead lag sequence. There are 5 thermal ice

storage tanks.

Domestic Hot Water

There is one (1) A.O. Smith, natural gas fired, domestic hot water heater rated for 420 kbtuh.

Controls


Page 24



Building Name: Parkway Elementary School

Address: 446 Parkway Avenue

Ewing, NJ 08618


Year Built: 1992


Usage: The building is a school that serves grades K-5. It is operated M-F from

7 am until 6 pm; closed weekends and holidays.


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

Windows: Covering approximately 20% of façade, metal frame, dual pane, blinds,

in good condition

Exterior Doors: Approximately 20, fiberglass, dual pane glass, in good condition

Page 25



Major Mechanical Systems – Parkway Elementary SchoolAir Handlers / AC Systems / Ventilation Systems

Parkway Elementary School has air handling units (AHUs) that supply conditioned air to the building. These AHU’s

have chilled water coils for cooling and hot water coils for heating. The perimeter spaces are served by unit ventilators

(UV) that are equipped with chilled water coils for cooling and hot water coils for heating. Approximately 24 exhaust

fans exhaust from areas including mechanical/boiler rooms, toilets, and offices.

Boilers

There are two (2) Cleaver Brooks, fire-tube natural gas hot water boilers each with a capacity of 2,511 MBH. These

boilers operate in a lead lag sequence. The boilers are served by two (2) 20-HP heating hot water pumps that operate

in a lead lag sequence that supply hot water to the school.

Chillers

The building has (1) Trane– 270 ton air-cooled chiller. This chiller is served by two (2) 30-HP chilled water pumps that

operate in a lead lag sequence.

Domestic Hot Water

There is one (1) Teledyne Laars, natural gas direct fired, domestic hot water heater rated for 850 kbtuh that supplies

domestic hot water to a storage tank that has a capacity of approximately 300 gallons.

Controls


Page 26


Greenhouse Gas Emission Reduction

Implementation of all identified ECMs will yield:

1,799,740 kilowatt-hours of annual avoided electric usage.

113,445 therms of annual avoided natural gas usage.

This equates to the following annual reductions:

1,252 tons of CO2;

-OR-

217 Cars removed from road;

-OR-

341 Acres of trees planted annually

The Energy Information Administration

(EIA) estimates that power plants in

the state of New Jersey emit s 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.

Page 27


Energy Conservation Measures (ECM) #1: Optimize Time Clock

A review of the building’s time clock revealed an opportunity to optimize the time of dayschedules.

Optimizing the schedules to better reflect actual building occupancy will reduce heatingand cooling costs.

For example, programming the HVAC equipment to turn off at 5 PM instead of Midnightwill result in approximately $3,000 annually in energy savings.

Administration Building: Time clock

Administration Building

Estimated Annual Savings: $3,000

Gross Estimated Implementation Cost: $200

NJ Smart Start Rebate: $0

Net Estimated Implementation Cost: $200

Simple Payback (years): 0.1

Annual Avoided CO2 Emissions (tons): 8

Page 28


ECM #2: Time of Day Optimization

A review of the Building Management System (BMS) time of day schedules revealed anopportunity to significantly reduce HVAC operating hours and costs.

Many of the HVAC units currently operate from 5am to 11pm; however, the classrooms arenot occupied through that entire period of time. Optimizing the schedules to better reflectactual building occupancy hours will reduce heating and cooling conditioning costs,electrical motor costs and have no impact on the indoor air quality during the school days.

These savings can easily be achieved by adjusting the BMS time of day schedules.

Exhaust fan and toilet exhaust fan time of day savings is also included above.

High

School

Middle

School

Lore

Elementary

Parkway

Elementary

Antheil

ElementaryTOTAL

Estimated Annual Savings: $35,340 $15,770 $21,140 $2,270 $510 $75,030

Gross Estimated Implementation Cost: $4,000 $4,000 $4,000 $1,600 $1,080 $14,680

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

Net Estimated Implementation Cost: $4,000 $4,000 $4,000 $1,600 $1,080 $14,680

Simple Payback (years): 0.1 0.3 0.2 0.7 2.1 0.2

Annual Avoided CO2 Emissions (tons): 97 41 57 6 1 289

Page 29


ECM #2: Time of Day Optimization (continued)

EXISTING BMS SCHEDULE High School Middle School Lore Elem. Antheil Elem. Parkway Elem.

Monday through Fri day Occupied Time 5:00 AM 6:30 AM 12:05 AM 6:00 AM 6:00 AM

Monday through Fri day Unoccupied Time 11:00 PM 10:00 PM 11:55 PM 5:30 PM 5:30 PM

Saturday Occupied Time 6:00 AM - 12:05 AM 12:00 AM -

Saturday Unoccupied Time 11:00 PM - 11:55 PM 12:00 PM -

Sunday Occupied Time - - 12:05 AM - -

Sunday Unoccupied Time - - 11:55 PM - -

PROPOSED BMS SCHEDULE High School Middle School Lore Elem. Antheil Elem. Parkway Elem.

Monday through Fri day Occupied Time 6:00 AM 6:30 AM 6:00 AM 6:00 AM 7:00 AM

Monday through Fri day Unoccupied Time 5:00 PM 5:00 PM 4:00 PM 5:30 PM 4:30 PM

Saturday Occupied Time - - - 6:00 AM -

Saturday Unoccupied Time - - - 12:00 PM -

Sunday Occupied Time - - - - -

Sunday Unoccupied Time - - - - -

Note: These schedules represent the general TOD schedules for the classroom areas within each school (Antheil Elementary schedule represent

gym TOD savings).

Page 30


ECM #2: Time of Day Optimization (continued)

HVAC equipment operating from 5am

to 11pm at Ewing High School.

Bathroom exhaust fans operating

from 4:30am to 11:00pm at Fisher

Middle School.

HVAC equipment operating from 12:05am to

11:55pm at Lore Elementary School.

Page 31


ECM #2: Time of Day (continued) Data Logger Temperature Trending

Temperature trending revealed that the RTU turned on during the weekend nightswhen the indoor temperature reached between 67.5-69°F. This could be the resultof inappropriate unoccupied temperature setpoints or time of day schedule.

Friday Saturday Sunday Monday

Page 32


ECM #3: Shutdown Chilled Water Pumps during Heating Season

The existing motors serving the Chilled Water pumps were on

during the site visits at the High School, which occurred during

the heating season.

Dome-Tech recommends shutting off the chilled water pump

motors.

High School – CHW Pumps On

Ewing High School







Page 33


ECM #4: Programmable Thermostats

A review of the maintenance building showed that the rooftopunits were controlled by non-programmable thermostats.

Dome-Tech recommends replacing the non-programmablethermostats with programmable thermostats andimplementing temperature setback.

Installing programmable thermostats will provide scheduledtemperature control to prevent overheating and unnecessarycooling when the building is unoccupied.

Gusz Maint. Bldg.







Page 34


ECM #5: Air Handling Unit (AHU-1) Controls Upgrade

In the High School, AHU-1 located in the chiller room contains the

outside and return air dampers that are both fixed at 100% open.

Operating in this manner will increase heating and cooling

conditioning costs.

The root cause appears to be that the pneumatic controls no longer

function properly.

Dome-Tech recommends repairing or replacing the existing controls

to correct the issue.

Dome-Tech also recommends considering upgrading the system to

Direct Digital Controls (DDC) controls, which will improve reliability

and control of the unit. This is the only unit in the building that still

utilizes pneumatics.

Fixed 100% Open Damper

on AHU-1

Ewing High School







Page 35


ECM #6: Shutdown Heating Hot Water Pumps

Two of the motors serving the HHW pumps to the Science

Wing were on during the site visits at the High school.

According to design specifications, only one is required to run

at a time.

Dome-Tech recommends shutting off one of the heating hot

water pump motors that serves the science wing.High School – Two HHW

Pumps On

Ewing High School







Page 36


ECM #7: Optimize Domestic Hot Water Systems

The domestic hot water available to building population andkitchen needs are heated by an indirect natural gas firedwater heater with storage tank

Operational Savings:

This system is set to provide domestic hot water at140 F. There is a dedicated domestic hot water heaterserving the kitchen and requires temperatures above120 F but the rest of the systems should not requirethe elevated temperatures. Energy savings can beachieved by adjusting the controls of these heaters toreduce the storage temperature requirements.

Picture: High School Hot Water Storage Tank

Picture: High School Hot Water

Thermostat set for 140 F

High School

Estimated Annual Savings: $100






Page 37


ECM #8: CO2 Sensors out of Calibration

In the High School the RTUs serving the classrooms

control the outside air intake based upon the CO2 level

generated by the occupants within the space.

Dome-Tech identified four units (RTU 131, 136, 207,

Wrestling) whose sensors are reading much higher

values than Dome-Tech measured in the field.

This scenario is causing the outside air dampers to

open unnecessarily, allowing cold outside air to enter

the unit thus causing it to utilize more heating energy to

warm up the supply air.

Dome-Tech recommends recalibrating or replacing the

sensors to ensure the demand control ventilation

sequence is operating properly. BMS Screenshot of RTU 131

Excessive Outside Air

Ewing High School







Page 38


ECM #8: CO2 Sensors out of Calibration (continued)

Picture of CO2 measurement in Room 131

Roof Top UnitBMS CO2

Reading

Measured

CO2 Reading

RTU Room 131 1500 999

RTU Room 136 1430 766

RTU Room 207 2000 720

RTU Wrestling 1200 872

Page 39


ECM #9: Optimize and Standardize the Space Temperature Setpoints

In the High School, the BMS space temperature

setpoints were all set to approximately 72°F,

however, the local thermostats in each space are

actually controlling the space temperature as

revealed by a functional test of RTU C-139.

18 RTUs and 6 fan coil units were identified through

a BMS review to be overheating their associated

spaces, thus unnecessarily increasing HVAC

conditioning costs.

The BMS screenshot of RTU 129 shows at BMS

temperature setpoint of 69°F, however, due to the

local thermostat setpoint of 86°F the RTU is still in

heating mode with the space temperature at 74.5°F.

Dome-Tech recommends locking out the local

thermostats and operating with the BMS setpoints. BMS Screenshot of RTU 129

Local thermostat controlling the room temperature

Ewing High School


Gross Estimated Implementation Cost: $5,570


Net Estimated Implementation Cost: $5,570



Page 40


ECM #9: Setpoint Optimization (continued)

BMS RTU Tag # BMS setpointLocal thermostat

setpointBMS FCU Tag # BMS setpoint

Local thermostat

setpoint

RTU C-139 72 86.6 FCU-A122 74 80.9

RTU 129 72 86.5 FCU-Rm106 72 82.6

RTU 217 70 85.1 FC-RM109 73 86.1

RTU 213 71 82.8 FCU-A124 72 85.8

RTU 211 70 86.2 FCU-Rm 102 72 86.3

RTU 209 72 85.9 FCU-Rm 105 71 78.5

RTU 208 68 92.2

RTU 206 72 83.4

RTU 205 72 85.1

RTU 202 72 79.4

RTU 200B 75 85.9

RTU 200A 75 85.9

RTU Math 72 79.5

RTU C140 71 81.7

RTU-Wdshp C-141 73 86.3

RTU 134 67 79.4

RTU 129 69 86.3

RTU 200B 75 85.9

BMS vs. Local Thermostat Setpoints

Page 41


ECM #10: 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).

High

School

Middle

School

Lore

Elementary

Parkway

Elementary

Antheil

Elementary

Gusz Maint.

Bldg.TOTAL

Estimated Annual Savings: $550 $750 $190 $370 $190 $170 $2,220

Gross Estimated Implementation Cost: $540 $720 $180 $360 $180 $180 $2,160

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

Net Estimated Implementation

Cost:$540 $720 $180 $360 $180 $180 $2,160

Simple Payback (years): 1.0 1.0 0.9 1.0 0.9 1.1 1.0

Annual Avoided CO2 Emissions (tons): 1 2 0 1 0 0 4

Page 42


ECM #11: Holiday Time of Day Optimization

High

School

Middle

School

Lore

Elementary

Parkway

Elementary

Antheil

ElementaryTOTAL

Estimated Annual Savings: $4,210 $5,390 $2,250 $1,950 $750 $14,550

Gross Estimated Implementation

Cost:$4,000 $4,000 $4,000 $1,600 $2,230 $15,830




Annual Avoided CO2 Emissions

(tons): 12 14 11 5 2 44

A review of the BMS time of day schedules revealed that no holiday schedulesare programmed.

Unless each facility already manually shuts down all the HVAC equipment, theyare operating unnecessarily during school holidays. This increases HVACconditioning costs as well as electrical motor operating costs.

These savings can easily be achieved by programming the BMS holidayschedules to unoccupied mode and applying it to holidays in the BMS.

Page 43


ECM #12: Install Insulation for Feed-water Tank

The feed-water tank at the High School is not insulated .

Insulating the tank reduces heat loss due to convection and radiation and saves

heating fuel.

Ewing High School







Page 44


ECM #13: Install Door Closer

The perimeter doors at the High School andAntheil Elementary School have broken doorclosers that allow infiltration to enter conditionedareas causing an unnecessary increase in theheating, cooling and dehumidification load.

Dome-Tech recommends replacing all broken doorclosers on perimeter doors.

Energy savings will be realized by the reduction ofhot and cold outside air that the buildings’ HVACequipment must condition to room temperature.

Picture: Antheil

Elementary School

Broken Door Closer

Ewing High

School

Antheil

ElementaryTOTAL

Estimated Annual Savings: $70 $70 $140

Gross Estimated Implementation Cost: $125 $125 $250

NJ Smart Start Rebate: $0 $0 $0

Net Estimated Implementation Cost: $125 $125 $250

Simple Payback (years): 1.8 1.8 1.8

Annual Avoided CO2 Emissions (tons): 0 0 0

Page 45


ECM #14: Disable Air Cooled Chiller during Heating Season

The existing air cooled chiller was observed to berunning during the heating season.

Dome-Tech recommends disabling the chiller duringthe winter months and have the air handling unitsoperate in an economizer mode.

Picture: High School Air Cooled Chiller

Running during heating season

Ewing High School







Page 46


ECM #15: Heat Pump Upgrade

Ewing High School

Estimated Annual Energy Cost Savings: $3,900

Gross Estimated Implementation Costs: $139,260

NJ Smart Start Rebate: $7,150

Avoided Cost (Like and Kind Replacement):* $119,660

Net Estimated Implementation Costs: $12,450

Simple Payback (years): (Incremental and

without Avoided Costs)3.2 (33.9)


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: High School Split System

Heat Pump AC Unit

* Note: Avoided Cost = Cost of Like and Kind replacement. Payback is based on incremental cost.

Page 47


ECM #16: Install Timers on Domestic Hot Water Heaters

Electric domestic hot water (DHW) heaters are enabled 24/7 during the cooling season.

There is minimal call for hot water at night.

The electric water heaters should have timers installed.

Note that this ECM is mutually exclusive with other DHW-related ECMs.

Ryan Admin.

Bldg.

Gusz Maint.

Bldg.TOTAL


Gross Estimated Implementation Cost: $160 $160 $320


Net Estimated Implementation Cost: $160 $160 $320



Page 48


ECM #17: Replace Boilers with High Efficiency Modulating Condensing Boilers

The High School is equipped with a natural gas fired-tube steam boiler. Fisher Middle School, LoreElementary School and Parkway Elementary School are equipped with a natural gas fired-tube hotwater boilers. The Administration and Maintenance Buildings are equipped with cast iron sectionalboilers.

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 high 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 Administration BuildingPicture: High School Old Fire-

Tube BoilerPage 49


ECM #17: 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. The ECM table details the economics at each site. However, reliabilityissues warrant consideration of these projects as part of a long-term capital improvement plan.

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.

High

School

Middle

School

Lore

Elementary

Parkway

Elementary

Ryan Admin.

Bldg.

Gusz Maint.

Bldg.TOTAL

Estimated Annual

Savings:$36,580 $24,720 $12,270 $8,120 $1,170 $3,960 $86,820

Gross Estimated

Implementation Cost:$761,550 $579,580 $197,440 $197,440 $65,845 $109,910 $1,911,765

NJ Smart Start Rebate: $15,000 $4,000 $3,000 $5,000 $1,500 $2,000 $30,500

Avoided Costs (Like in

Kind):$636,800 $479,580 $167,440 $167,440 $48,870 $90,260 $1,590,390

Net Estimated

Implementation Cost:$109,750 $96,000 $27,000 $25,000 $15,475 $17,650 $290,875

Simple Payback (years): (Incremental and without

Avoided Costs)3.0 (20.4) 3.9 (23.3) 2.2 (15.9) 3.1 (23.7) 13.2 (55.0) 4.5 (27.3) 3.4 (21.7)

Annual Avoided CO2

Emissions (tons): 197 142 68 44 6 20 477

Page 50


ECM #18: Replace Aging Air Cooled Chiller with High Efficiency Unit

The existing air cooled chiller is approximately 15 years old.It has approached its estimated equipment service life(EESL) per ASHRAE standards. (The EESL for an aircooled chiller is 15 years.)

When replacing the air cooled chiller, Ewing BOE shouldconsider upgrading to a higher efficiency units, which willsignificantly reduce annual energy and maintenance costs.

New Jersey SmartStart offers rebates that usually pay forthe incremental 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 Proposed

100 9.7 10.6

Picture: Antheil Elementary School Air

Cooled Chiller

Ewing High School



NJ Smart Start Rebate: $3,120

Avoided Costs (Like in Kind): $114,060


Simple Payback (years): (Incremental and

without Avoided Costs)4.2 (85.7)


Page 51


ECM #19: Rooftop Unit (RTU) Replacement

The High School, Fisher Middle School, AdministrationBuilding, Lore Elementary School, and Antheil ElementarySchool were observed to have rooftop units (RTUs) between15-25 years old and nearing their estimated end of equipmentservice life (EESL) per ASHRAE standards. (The EESL forpackage rooftop units is 15 years.)

Replacing these RTU’s with new, higher efficiency units willsignificantly reduce annual energy and maintenance costs.

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

Energy Efficiency Ratios*

High School Rooftop Unit

*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) Standard Proposed

5 13 14.3

10 10.1 12.3

Page 52


ECM #19: Rooftop Unit (RTU) Replacement (Continued)

*Savings do not include maintenance savings.

High

School

Middle

School

Lore

Elementary

Antheil

Elementary

Ryan Admin.

Bldg.

Gusz Maint.

Bldg.TOTAL

Estimated Annual

Savings: $2,600 $400 $400 $200 $700 $200 $4,500

Gross Estimated

Implementation Cost: $200,190 $24,310 $31,250 $16,700 $58,950 $19,000 $350,400

NJ Smart Start Rebate:$7,780 $930 $1,175 $890 $1,780 $1,110 $13,665

Avoided Cost (Like and

Kind Replacement): * $180,490 $22,010 $28,350 $14,500 $54,500 $16,200 $316,050

Net Estimated

Implementation Cost: $11,920 $1,370 $1,725 $1,310 $2,670 $1,690 $20,685

Simple Payback (years):

(Incremental and without

Avoided Costs)

4.6 (74.0) 3.4 (58.5) 4.3 (75.2) 6.6 (166.1) 3.8 (81.7) 8.5 (89.6) 4.6 (74.8)

Annual Avoided CO2

Emissions (tons): 6 1 1 0 1 0 9

* Note: Avoided Cost = Cost of Like and Kind replacement. Payback is based on incremental cost.

Page 53


ECM #20: Replace Existing Motors with Premium Efficiency Motors at End of Life

Many of the existing motors serving pumps at the schools are standard efficiency motors.

Standard efficiency motors consume more power than their equivalent premium efficiency

motors. Premium efficiency motors should be installed at the end of life.

Dome-Tech recommends replacing the recommended regularly operated standard efficiency

motors with new premium efficiency motors at their end of life (EOL).

See the Appendix for a detailed list of motors recommended for replacement by this ECM.

High

School

Lore

Elementary

Parkway

Elementary

Antheil

ElementaryTOTAL

Estimated Annual Savings: $600 $140 $440 $110 $1,290

Gross Estimated Implementation Cost: $2,480 $780 $2,080 $1,260 $6,600

NJ Smart Start Rebate: $225 $100 $110 $90 $525

Net Estimated Implementation Cost: $2,255 $680 $1,970 $1,170 $6,075

Simple Payback (years): 3.8 4.9 4.5 10.7 4.7

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

Page 54


ECM #21: Upgrade Door Weather Stripping

Missing or

degraded weather

stripping should be

replaced on doors

at the following

facilities:

Close up of garage door threshold at

the Maintenance Building

High

School

Middle

School

Lore

Elementary

Parkway

Elementary

Antheil

Elementary

Gusz Maint.

Bldg.TOTAL

Estimated Annual

Savings:$720 $195 $70 $70 $330 $350 $1,735

Gross Estimated

Implementation Cost:$3,850 $1,050 $350 $350 $1,750 $700 $8,050

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

Net Estimated

Implementation Cost:$3,850 $1,050 $350 $350 $1,750 $700 $8,050

Simple Payback (years): 5.3 5.4 5.0 5.0 5.3 2.0 4.6

Annual Avoided CO2

Emissions (tons): 3 1 0 0 1 1 6

Facility

Exterior

Doors

Qty:

Garage

Doors

Qty:

High School 11

Fisher Middle School 3

Lore Elementary School 1

Antheil Elementary School 5

Parkway Elementary School 1

Maintenance Building 2

Page 55


ECM #22: Remove Exhaust Fans, Cap And Insulate

There are approximately 7 unused exhaust fans on the roof of the

High School and 2 at Antheil Elementary School. Fans have been

abandoned in place and electrically disconnected.

Exhaust ductwork has not been sealed.

The fans should be removed from the rooftop, and curbs capped and

insulated.Typical abandoned

exhaust fan at the

High School.

Ewing High

School

Antheil

ElementaryTOTAL


Gross Estimated Implementation Cost: $1,960 $550 $2,510


Net Estimated Implementation Cost: $1,960 $550 $2,510



Page 56


ECM #23: 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 reducing the total number of lamps and by replacing fixtures while maintaining the minimum lighting output as per state codes. The gym’s have older technology HID lighting and should be retrofitted with High Output T5 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.

High

School

Middle

School

Lore

Elementary

Parkway

Elementary

Antheil

Elementary

Ryan

Admin.

Bldg.

Gusz

Maint.

Bldg.

TOTAL

Estimated Annual

Savings:$44,990 $28,140 $14,920 $15,410 $15,540 $1,110 $4,710 $124,820

Gross Estimated

Implementation Cost:$285,720 $205,820 $123,440 $107,350 $142,000 $8,290 $43,370 $915,990

NJ Smart Start Rebate: $12,815 $8,340 $3,785 $4,080 $7,130 $120 $3,055 $39,325

Net Estimated

Implementation Cost:$272,910 $197,480 $119,660 $103,270 $134,870 $8,170 $40,310 $876,665

Simple Payback (years): 6.1 7.0 8.0 6.7 8.7 7.4 8.6 7.0

Annual Avoided CO2

Emissions (tons): 93 58 31 32 32 2 93 341

Note: Utility pricing assumed at $ 0.16 / kWh

for all buildings

Page 57


ECM #24: Replace Kitchen Equipment with Energy Star Rated Equipment

Most of the kitchen equipment (reach-in coolers/freezers, food warmers, dishwashers) in

the schools are older and less efficient than newer, higher efficiency equipment.

Replacing the electric equipment with higher efficiency Energy Star - labeled equipment

will provide at least $11,500 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.

Electric Convection Oven Freezer RefrigeratorSteamerDishwasher

Page 58


ECM #24: Replace Kitchen Equipment with Energy Star Rated Equipment (continued)

High

School

Middle

School

Lore

Elementary

Parkway

Elementary

Antheil

ElementaryTOTAL

Estimated Annual Savings: $5,530 $1,880 $1,400 $880 $1,810 $11,500






Page 59


ECM #25: Replace Window AC Unit

Window air conditioning units that are installed at theAdministration Building provides localized air conditioning forsmall private offices and storage areas. The units are in poorphysical condition, and inefficient compared to today’sstandards.

Dome-Tech recommends replacing these units with a new,higher efficiency unit.

New 10.5 SEER (Seasonal Energy Efficiency Rating) unitsare estimated to be at least 14% more efficient at full/partloads than the existing equipment.

High SchoolRyan Admin.

Bldg.

Gusz Maint.

Bldg.TOTAL

Estimated Annual Savings: $20 $20 $90 $130

Gross Estimated Implementation Cost: $250 $200 $1,000 $1,450

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

Net Estimated Implementation Cost: $250 $200 $1,000 $1,450

Simple Payback (years): 12.5 10.0 11.1 11.2

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

Admin Bldg: Window AC Unit

Location Qty.

High School 1

Administration Bldg 1

Maintenance Bldg 4

Page 60


ECM #26: Demand Controlled 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). Since maximum design occupancy is rarely achieved, this results in excessive fresh air

volumes which require costly and unnecessary conditioning.

Demand-controlled ventilation (DCV) controls the amount of outside air being supplied based upon the CO2 levels

generated by building occupants. DCV should be added to any space that is ventilated by a large quantity of outdoor air,

and where occupancy varies dramatically (gymnasiums and libraries).

Because CO2 levels correlate directly with the number of people in an occupied zone, CO2 sensors will be used to control

ventilation rate of outside air supplied to each zone. Reducing the amount of outdoor air supplied to a zone reduces the

energy required to heat and cool that air, while space conditions are kept in compliance with building codes and standards

such as the ASHRAE Indoor Air Quality Standard.

The High School is currently utilizing Demand Control Ventilation. An additional $6,600 can be saved if DCV were to be

implemented in the Gym, Auditorium and Senior Cafeteria.

High

School

Middle

School

Lore

Elementary

Parkway

Elementary

Antheil

ElementaryTOTAL

Estimated Annual Savings: $6,490 $2,120 $1,620 $680 $680 $11,590






Area Recommended:

Gym,

Auditorium,

Senior Cafe

Both Gyms,

Cafeteria,

Auditorium

Gym,

Cafeteria

Gym,

Cafeteria

Cafeteria,

Gym, Library

Page 61


ECM #27: Install Variable Frequency Drive(VFD) Controls On Air Handling Unit Supply Fans

There are inlet guide vanes installed on the Science Wing

Air Handling units at the High School. They are driven by

standard drive motors.

Controlling these motors with a process variable such as

water temperature will reduce energy consumption.

High School : Inlet Guide Vanes

High School







Page 62


ECM #28: Walk-In Cooler Controllers

Typically the walk-in cooler evaporator fans run continuously.

However, full airflow is only required 50% of the runtime.

In the most common applications (those that use single-phase

power), motors for the fans are typically shaded-pole or

permanent-split-capacitor types, both of which are very inefficient.

Inexpensive controllers are currently available that slow these fans

when full-speed operation is unnecessary.

Reducing the operating speed reduces the energy consumption of

the fan. In addition, the motor produces less heat at slower speeds,

which means that the compressor has less heat to remove from

the refrigerated compartment.

High

School

Middle

School

Parkway

Elementary

Gusz Maint.

Bldg.TOTAL

Estimated Annual Savings: $50 $50 $150 $140 $390

Gross Estimated Implementation Cost: $920 $920 $2,340 $1,170 $5,350

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

Net Estimated Implementation Cost: $920 $920 $2,340 $1,170 $5,350

Simple Payback (years): 18.4 18.4 15.6 8.4 13.7

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

Page 63


ECM #29: Replace Electric Kitchen Dishwasher Booster with Natural Gas Fired

The high school’s kitchen is equipped with electric hot water

booster heaters for dishwashing.

The school’s electric cost is over $0.156 per kilowatt hour. The

equivalent natural gas cost for a 95% efficient natural gas hot

water heater is $5.37 per therm. The actual price for natural

gas is approximately $1.088 per therm (almost 300% less than

electric heat).

Replacing the electric heaters with natural gas units will provide

at least $1,280 in annual savings and will reduce electric

demand by 2 kW.

Electric hot water booster heater

Ewing High

School

Fisher

Middle

School

Totals

Estimated Annual Savings: $450 $860 $1,310

Gross Estimated Implementation Cost: $8,740 $9,430 $18,170

NJ Rebate: $0 $0 $0

Net Estimated Implementation Cost: $8,740 $9,430 $18,170



Page 64


ECM #30: Boiler Combustion Controls Upgrade

High Schools’ boilers have single point positioning combustion control systems with O2 trim. Single point positioning

systems are simple, typically reliable, and cost effective control systems. A jack shaft is rotated by an actuator. The forced

draft fan flow control damper and the fuel valves are mechanically linked to the jack shaft. The fuel valves are characterized,

over the burner firing range, to achieve the proper fuel to air ratio. These systems are mechanically controlled and prone to

back-lash and hysteresis, causing inefficient operation. O2 trim is accomplished with a I/P positioner mounted on the main

gas PRV. Maximum turndown with this control scheme is limited to 4 to 1.

Upgrading the boilers with a fully metered combustion control system with variable speed fan control will provide significant

annual fuel and electric cost savings. A fully metered combustion control system continuously measures the fuel and air

streams, adjusting the fuel and air control devices to maintain the desired fuel to air ratio. PID control is used for both fuel

and air flow control. This type of control system provides extremely accurate control and compensates for flow variation.

The annual fuel savings from a fully metered combustion control system is estimated at 3% of the annual fuel usage (430

therms per year). The variable speed fan control will provide a 40% reduction in fan motor electric usage (15,000 kilowatt-

hours per year).

Other added benefits to this scheme include tighter FGR control and improved turndown. In addition to traditional dampers,

windbox O2 would now also be monitored ensuring tighter control and an extra layer safety. The tighter control of fuel, air

and FGR also means the RMB burner turndown will increase to 6 to 1.

The cost estimate assumes this upgrade will be applied to one of the High School’s two boilers.

Combustion Controls

Ewing High School

Estimated Annual Energy Cost Savings: $4,140

Gross Estimated Implementation Costs: $90,000


Net Estimated Implementation Costs: $90,000

Simple Payback (years) 21.7


Page 65


ECM #31: Upgrade Windows

A survey of the Administration Building and Maintenance Building revealed a mixture of

types and sizes of windows and functionality and condition varied throughout the building.

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.

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

these economics should be refined with an investment grade analysis.

Ryan Admin.

Bldg.

Gusz Maint.

Bldg.TOTAL

Estimated Annual Savings: $740 $450 $2,030

Gross Estimated Implementation Cost: $221,830 $138,970 $360,800


Net Estimated Implementation Cost: $221,830 $138,970 $360,800



Page 66


ECM #32: Creation of an Energy Awareness & Education Program

Ewing School District currently has no observed program in place.

Educational institutions are where our nation’s youth spend a significant portion of their

time. As such, educators can have a potentially large impact on promoting an energy

conscious and conservation-minded society that starts at their school, leading to energy

cost reductions, environmental benefits, and national energy independence.

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

which can contribute to enhanced school 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

Page 67


Retro-Commissioning Studies

Retro-Commissioning Studies

Antheil Elementary School

Utilize Thermal Ice Storage to reduce summer peak demand charges

Middle School

Multiple Air Handling Units not running – Units tripped Due to Freeze Stat Mode

VFD for Hot Water Pump Not functioning properly

De-humidification Issues – Result in indoor air quality issues / mold – Running

boilers in the summer months to dry air

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

Gross Estimated Implementation Cost: Varies

Expected Rebate / Energy Efficiency Credit: None

Net Estimated Implementation Costs: Varies

Simple Payback (yrs): Varies

Annual Avoided CO2 Emissions (tons): Varies

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

Page 68


Operations & Maintenance

Fisher Middle School

Issue: Loose Fan Belts for roof top unit supply fans

Impact: Pressurization issues, improper ventilation, noise hazard, wasteful

energy spending and premature motor failure

Recommendation: Planned maintenance, functional checks and inspections on

exhaust fans and rooftop units

Fisher Middle School

Approximately $50 annual savings expected O&M savings from this measure

Fisher Middle School – Loose Fan Belt

Page 69


Operations & Maintenance

William Antheil Elementary School

Issue: Thermal Ice Storage not used

Impact: William Antheil has the ability to use the thermal ice storage and reduce their

peak demand loads. By curtailing the load, Antheil Elementary School will make ice

during off peak hours. As a result, this will lower the summer peak demand charges and

lowering monthly utility bills

Recommendation: Run the thermal ice storage during off-peak hours. Have the thermal

ice storage properly commissioned. The operations staff should be properly trained on

using the thermal ice storage system. If Ewing BOE is interested in curtailing the peak

load, Dome-Tech recommends further trending, analysis and an economic dispatch

model to be performed.

William Antheil Elementary School – Thermal

Ice Storage

Page 70


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

Photovoltaic's (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.

Page 71


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.

Ewing Township 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 Ewing area is 4.6 meters per second. Ideal wind speeds for a successful project should

average over 6 meters per second.

For Ewing Township, 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’


Weight: 1,900 lbs.


Maximum Generating Capacity: 5.2 kW

50 kW Ground Mount

Model: Entegrity EW50

Height: 102’


Weight: 21,000 lbs.


Maximum Generating Capacity: 50 kW

Page 72


Renewable Energy Technologies: Wind

Wind Turbine Pros & Cons

Pros Cons

Annual reduction in energy

spend and use can be

potentially reduced by almost

$22,743 (69% reduction).

Typical equipment life span is

15-30 years.

Reduction of annual

greenhouse gas emissions by

126 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 10 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:

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 $54,029 $49,239 $120,036

Net Installation Cost Estimate $75,971 $13,161 $129,964

Annual Energy Savings $3,205 $2,277 $22,743

Simple Payback 23.7 yrs. 5.8 yrs. 5.7 yrs.

System Capacity 20 kW 10 kW 50 kW

Annual Avoided Energy Use 21,658 kWh 15,387 kWh 153,672 kWh

Annual CO2 Emmisions, Therms 8 5 54

% of Annual Electric Use* 9.7% 6.9% 69.0%

Maintenance Building: 222640 kWh/Year.

Ewing Township is not an ideal location for wind power but should the district decide to pursue a wind

turbine project, Dome-Tech recommends commissioning a more detailed study.

Page 73


Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

Sunlight can be converted into electricity using photovoltaic's (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.

Can be recommended in this application for placement on additional schools / areas.

Page 74



Solar Photovoltaic

System Capacity, kw-dc (maximum utilization of roof space) 88 kw dc

Estimated Annual AC Energy Produced by Proposed Solar PV System 92,992 kwh

Total Annual Facility Electric Use, kwhrs 2,301,619 kwh

Proposed % of Total Annual kWh supplied by Solar PV 4%

All-In Rate for Electric Year 1 $0.156 / kwh

Year 1 Electric Cost Savings $14,507

Year 1 Maintenance Costs $1,765

Estimated Year 1 SREC Value: $599 / SREC

Estimated Year 1 SREC Revenue: $55,696

Actual Payback 8.6 years

IRR (25 Years) 9.3%

Net Present Value (25 yrs, 8% discount rate) $46,643

Cost per kW installed $6,000

System Installed Cost $529,368

Install Roof Mount Solar Photovoltaic System(s)

Ewing Board of Education - Ewing High School

Assumptions

Financial Results

Cost and Rebate

Page 75



Solar Photovoltaic











IRR (25 Years) 9.4%



System Installed Cost $1,619,016


Ewing Board of Education - Ewing Middle School

Assumptions

Cost and Rebate

Page 76



Solar Photovoltaic











IRR (25 Years) 9.5%



System Installed Cost $1,014,300


Ewing Board of Education - Antheil Elementary School

Assumptions

Financial Results

Cost and Rebate

Page 77



Solar Photovoltaic



Total Annual Facility Electric Use, kwhrs 653,400 kwh








IRR (25 Years) 9.4%





Ewing Board of Education - Lore Elementary School

Assumptions

Financial Results

Cost and Rebate

Page 78



Solar Photovoltaic











IRR (25 Years) 9.4%





Ewing Board of Education - Parkway Elementary School

Assumptions

Financial Results

Cost and Rebate

Page 79



Solar Photovoltaic











IRR (25 Years) 9.0%





Ewing Board of Education - Maintenance Building

Assumptions

Cost and Rebate

Page 80


Solar Photo Voltaic System

Non-Financial Benefits of Solar PV The implementation of solar PV projects at

Ewing School District would place your

facilities at the forefront of renewable energy

utilization. This allows the district the

opportunity to not only gain experience with

this energy technology, but also to win

recognition as an environmentally sensitive,

socially conscience institution. Additionally,

these projects could be incorporated into

science education and additional curriculums

to raise awareness of current energy

alternatives to the younger generations.

Page 81


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 Ewing Board of Education due to the lack of thermal requirements in the summertime.

Page 82


Utility Tariff and Rate Review: Electricity

Accounts and Rate Class: Ewing Township School District has seven facilities with nine

electric accounts with service behind Public Service Electric and Gas Company under rate

classes Large Power and Lighting Service-Secondary (LPLS) , General Lighting and Power

Service (GLP).

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

electric expenditure for the District is about $1,094,000 and the total annual consumption is

about 6,911,000 kilowatt-hours (kWh).

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

monthly cost per kilowatt-hour ranged from 14.79 ¢/kWh to 17.43 ¢/kWh, inclusive of utility

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

15.84 ¢/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.

Page 83


Utility Tariff and Rate Review: Natural Gas

Accounts and Rate Class: Ewing Township School District has seven facilities with nine

natural gas accounts with service behind Public Service Electric and Gas Company under

rate classes Large Volume Service (LVG) and General Service (GSG).

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

annual natural gas expenditure for the District is about $363,000 and the total annual

consumption is about 342,000 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 District’s overall,

average cost per therm during this period was $1.061 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.

Page 84


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.

Page 85


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 (i.e., 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.

Page 86

http://www.bgs-auction.com/







http://www.pjm.com/

http://www.pjm.com/

http://www.pjm.com/

http://www.pjm.com/

http://www.pjm.com/


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.

Page 87

http://www.nymex.com/






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 retail energy supplier. 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, Ewing

Township School District was utilizing South Jersey Energy at a fixed rate of 11 ¢/kWh.

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 Ewing Township School District 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. 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.

Page 88


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.com

Reliant X reliant.com

First Energy X fes.com

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.

Page 89

http://www.bpu.state.nj.us/























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

Page 90


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. Based on findings in this study, up to $594,000 in

incentives for project implementation could be provided under this program. 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. The Energy Saving Companies (ESCO) would assist in bypassing large

upfront costs to the entity.

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

Page 91

http://www.njcleanenergy.com/

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












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, Photovoltaic's, 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

Page 92

http://www.njeda.com/web/Aspx_pg/Templates/Npic_Text.aspx?Doc_Id=1078&menuid=1360&topid=722&levelid=6&midid=1357

http://www.njeda.com/web/Aspx_pg/Templates/Npic_Text.aspx?Doc_Id=1078&menuid=1360&topid=722&levelid=6&midid=1357





http://www.njcleanenergy.com/renewable-energy/programs/renewable-energy-incentive-program/applications-and-e-forms-renewable-ener




















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 particular 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.

Page 93

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

mailto:[email protected]


Next Steps

The following projects should be considered for implementation:

Controls Upgrades

Time of Day Optimization

Temperature Setpoint Optimization

Demand Control Ventilation

Condensing Boiler Upgrades

Lighting upgrades

Vending machine power management

Start Energy Awareness Program

Retro-Commissioning Opportunities

CO2 Sensor Calibration

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

bring them to bidding and implementation.

Consider applying for Pay-For-Performance Program

ESIP

Page 94


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.

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

William Antheil Elementary School $0.161 $1.048

Parkway Elementary School $0.159 $1.090

Francis Lore Elementary School $0.160 $1.054

Gilmore J Fisher Middle School $0.160 $1.019

Ewing High School $0.156 $1.088

Ryan Administration Building $0.159 $1.169

Gusz Maintenance Building $0.148 $1.159

Totals/Average $0.158 $1.061

Page 95

Documents

Energy Audit - NJ Clean Energy Audit Reports - July 2012/Ewing Township...energy audit was to evaluate the District’s energy consumption, establish baselines for energy efficiency