PP Report.Hunterdon HS rev2 - Amazon S3 · Hunterdon Central Regional High School, Flemington, NJ Energy Audit Report, October 2009 ECM# 3: Excessive Ventilation (continued) Picture:

510 Thornall Street, Suite 170Edison, NJ 08837Phone: 732-590-0122Fax: 732-590-0129

Energy AuditEnergy AuditPrepared For:Hunterdon Central RegionalHigh School

ContactDave KleinManager of Operations

Prepared By:Dome – Tech, Inc.

Prepared Under theGuidelines of the State of NJLocal Government EnergyAudit Program

October, 2009

Page 1Page 1

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

HUNTERDON CENTRAL REGIONAL HIGH SCHOOLENERGY 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 2Page 2

Page 3Page 3

Page 4Page 4

Page 5

Page 6

Hunterdon Central Regional High School, Flemington, NJ Energy Audit Report, October 2009

Energy Audit Purpose & ScopeEnergy Audit Purpose & Scope

Purpose:

The objectives of the energy audit are to evaluate the site’s energy consumption,establish baselines for energy consumption and identify opportunities to reduce the

amount of energy used and/or its cost.

Scope:

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

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 andeconomic returns.

V. Renewable/Distributed Energy Measures: evaluate economic viability of variousrenewable/distributed energy technologies.

VI. Energy Purchasing and Procurement Strategies: perform utility tariff analysis and assesspotential for savings from energy procurement strategies.

VII.Method of Analysis: Appendices

Page 7Page 7

Page 8


Historic Energy ConsumptionHistoric 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 togauge 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 anofficial Energy Star Building 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)Hunderton Central Regional High

School - Upper Campus 215,503 2 NA 133.5 324.3Hunderton Central Regional High

School - Lower Campus 218,096 32 NA 84.8 189.5

Page 9Page 9


Historic Energy Consumption (continued)Historic Energy Consumption (continued)

Portfolio Manager Sign - In

An account has been created for Hunterdon Central Regional High School inPortfolio Manager. You will have received an email to notify you of the generation ofthis account and shared access with Dome-Tech. Please use this to read your facilityinformation. Please feel free to alter this information when the report is finalized. Wewould ask that you leave the sign-in information alone until then. Your school’sinformation 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: HunterdonCRHS

Password: DTHunterdonCRHS

Email for account: [email protected]

Page 10Page 10


Facility InformationFacility Information

Building Name:Building Name: Upper CampusUpper Campus

Address: 84 Route 31

Flemington, NJ 08822

Gross Floor Area: 215,503 sf

Year Built: 1955 with additions in 1958,1962,1996,1998,2007

Grades: 9 and 10

# Students/ # Staff: 1600/250

Construction Features:Construction Features:Facade: Masonry Cinder Blocks with Brick Façade

Roof Type: Flat, mix of black and grey, metal deck, built up, some sections in good condition,

other sections in poor condition

Windows: Covering 30% of façade, approximately 5-10 years old, metal frame, operable,double glazed, in good condition

Exterior Doors: Metal frame, dual pane, in good condition

Major Mechanical SystemsMajor Mechanical SystemsAir Handlers / AC Systems / Ventilation Systems

Fifty-one (51) Trane Fan Coil Units; two (2) 225 ton Trane Air-cooled chillers

Boilers/ Heating Systems

One (1) RUUD 65 mbh domestic hot water heater, one (1) AO Smith 40 mbh domestic hot waterheater, one (1) Weil McLain 4510 mbh hot water steam boiler

See equipment lists for associated pumps and motors

Page 11Page 11


Facility InformationFacility Information

Building Name:Building Name: Lower CampusLower Campus

Address: 84 Route 31

Flemington, NJ 08822

Gross Floor Area: 218,096 sf

Year Built: 1971 with additions in 1998 and 2007

Grades: 11 and 12

# Students/ # Staff: 1600/250

Construction Features:Construction Features:Facade: Masonry Cinder Blocks with Brick Façade

Roof Type: Flat, black, rubber with metal deck, approximately 10 years old, in good condition

Windows: Covering 20% of façade, metal frame, fixed, operable, double glazed, 800 and 900

sections are in good condition, 600 and 700 sections are in poor condition (badseals)

Exterior Doors: Metal frame, dual pane, tinted, 800 and 900 sections are double glazed in goodcondition, 600 and 700 sections are in poor condition (single glazed)

Major Mechanical SystemsMajor Mechanical SystemsAir Handlers / AC Systems / Ventilation Systems

Five (5) Lennox packaged roof top units (RTUs), one (1) Trane 225 ton Air Cooled Chiller

Boilers/ Heating Systems

Three (3) AO Smith (600/600/300 gal) domestic hot water boilers, three (3) Aerco 2MBHCondensing boilers See equipment lists for associated pumps and motors

Page 12Page 12

Page 13

Page 14


Energy Conservation Measures ECM #1:Optimize Domestic Hot Water Systems

The domestic hot water available to building population and kitchen needs areheated by various types of hot water heaters: Conventional electric storage water heaters Conventional natural gas fired storage water heaters

Picture: Upper CampusNatural Gas Hot Water Heater

Picture: Upper CampusElectric Hot Water Heater

Page 15Page 15


ECM #1: Optimize Domestic Hot WaterSystems (continued)

Heating Savings: The indirect natural gas fired water heater systems in the Lower Campus should be

redesigned to operate off the existing boiler. Energy savings will be achieved byproducing hot water from the existing boiler that operates at 85% efficiency comparedto the existing indirect natural gas fired water heater operating at 80%.

Operational Savings: Most of these systems are set to provide domestic hot water at 150°F, but some

systems are set to store water at higher temperatures. A few of the systems serving thekitchens would require temperatures of about 120°F but the rest of the systems shouldnot require the elevated temperatures. Energy savings can be achieved by adjustingthe controls of these heaters to reduce the storage temperature requirements.

Lower Cam

pus-

11&

12th

Grade

Estimated Annual Energy Cost Savings: $9,320

Estimated Gross Implementation Costs: $130

NJ Smart Start Rebate: $0

Net Estimated Implementation Costs: $130

Estimated Simple Payback (years): 0.0

Annual Avoided CO2 Emissions (tons): 36

Page 16Page 16


ECM #2: Optimize and Standardize theSpace Temperature Setpoints

A review of the building management systems revealed room and supply temperaturesetpoint inconsistencies.

DomeTech recommends that standard summer/winter setpoints be implemented asfollows:

74 °F cooling – 72 °F heating Ensure there are no deviations between the zone temperature setpoints

(prevents one zone heating, next zone cooling)

Upper C

ampus-

9&

10thG

rade

Lower C

ampus-

11&

12thGrade

TOTA

LS

Estimated Annual Energy Cost Savings: $8,700 $9,500 $18,200

Estimated Gross Implementation Costs: $1,640 $1,180 $2,820

NJ Smart Start Rebate: $0 $0 $0

Net Estimated Implementation Costs: $1,640 $1,180 $2,820

Estimated Simple Payback (years): 0.1 0.1 0.2

Annual Avoided CO2 Emissions (tons): 12 20 33

Page 17Page 17


ECM #2: Optimize and Standardize theSpace Temperature Setpoints (continued)

Sample Existing Setpoint from BMS for AC-B1

Page 18Page 18


ECM #3: Excessive Ventilation

Most classes have separate dedicated packaged rooftop units serving the room.

Nearly all of these units were observed to provide excessive supply and ventilation air totheir respective spaces. When the zone temperature is satisfied, the unit turns off theheating or cooling element and continues to ventilate the space. For example, during acold winter day, the unit will provide heating to a space until the zone temperature reachesthe desired set-point. Once that temperature set-point is satisfied, the unit will turn off theheating elements but continue to provide cold outside air to the space. This operationinduces excess ventilation into the tempered space.

Drawbacks to excessive supply and ventilation air:

Noise at the diffuser

Induces uncomfortable drafts

Rapid temperature changes when the

heating/cooling elements turn off

Dome-Tech recommends rebalancing the system to supply air flow rate adequate forventilation requirements and thermal conditioning.

Increases fan energyIncreases energy consumption

Page 19Page 19


ECM# 3: Excessive Ventilation (continued)

Picture: Hunterdon Central SchoolHeat Recovery Unit

Upper C

ampus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTA

LS







Page 20Page 20


ECM #4: Vending Machine PowerManagement

Dome-Tech recommends installing a VendMiser vending machine power managementdevice on all vending machines.

The device uses a passive infrared sensor to power down the machine when the areasurrounding 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 ensurethat 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, thecooling cycle is allowed to finish before again powering down (reduces compressor wearand tear).

Upper C

ampus-

9&

10thG

rade

Lower C

ampus-

11&

12th

Grade

TOTA

LS






Annual Avoided CO2 Emissions (tons): 7.5 2.3 10

Page 21Page 21


ECM #5: Optimize Time of Day SchedulesECM #5: Optimize Time of Day Schedules

A review of the schedules in building management system (BMS) revealed an opportunityto optimize the time of day schedules.

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

For example, programming the units to come on one hour later and turn off one hoursooner will reduce HVAC costs.

Please see Appendix for Time of Day Schedules

Upper C

ampus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTALS







Page 22Page 22


ECM #5: Optimize Time of Day SchedulesECM #5: Optimize Time of Day Schedules(continued)(continued)

Sample Existing Time of Day from BMS for AC-B2

Page 23Page 23


ECM #6: Chilled Water Pump Optimization

The current operation of the VFD is maxed out at 60 HZ. When operating a VFD at100% output, approximately 3% of the total rated motor power is incurred; thus totalpower consumption is 103%.

The triple duty valve is throttled approximately 40%. Operating a pump in this mannersignificantly reduces pump efficiency

By Optimizing the Chilled Water Pumps the oversized pumps and motors will bereplaced with smaller/more appropriately sized pumps and motors therefore reducingexcessive pumping energy and proper use of the VFD.

Upper C

ampus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTALS







Page 24Page 24


ECM #7: Scheduled Exhaust fans

The current scenario leads to unnecessary make-up air requirements, whichleads to higher HVAC costs.

Currently, the exhaust fans in the storage, bathrooms and showers are set torun from 6 AM to 12 AM. Dome-Tech recommends scheduling an earlier shut-off time for these units, to 8 PM.

Upper C

ampus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTA

LS

Estimated Annual Energy Cost Savings: $1,800 $798 $2,598






Page 25Page 25


ECM #7: Scheduled Exhaust fans (continued)

Sample Existing Time of Day from BMS for Exhaust Fans

Page 26Page 26


ECM #8: Demand Control VentilationUpper Cam

pus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTALS







Building codes require that a minimum amount of fresh air be provided to ensure adequate airquality. To comply, ventilation systems often operate at a fixed rate based on an assumedoccupancy (e.g., 20 cfm per person multiplied by the maximum design occupancy). Theresult is excessive fresh air volumes which require costly (and unnecessary) conditioning.

Demand-controlled ventilation controls the amount of outside air based upon the CO2 levelsgenerated by building occupants. Demand ventilation should be added to any return airsystem where space occupancy varies dramatically – cafeteria, gym and common areas.

By installing CO2 sensors and controlling the CO2 level at less than 1000 PPM, the outside airflow is kept to the absolute minimum while space conditions are kept in compliance withbuilding codes and standards such as the ASHRAE Indoor Air Quality Standard.

Location Unit Serves

Lower Campus AHU-1 AuditoriumLower Campus RTU-AC-B5 CommonsLower Campus RTU-AC-B6 CommonsLower Campus RTU-AC-B7 Commons

Upper Campus AHU-1AUDTORIUM

LOBBY

Upper Campus AHU-4GYM, NEWWOODEN

Upper Campus RTU - 173 CAFETERIA

Page 27Page 27


ECM #9: Static Pressure Reset

2

1.75

0.25

Old Static Pressure

New Static Pressure

Difference

The discharge air static pressure set points for the roof-top and Air Handling Units onboth campuses are currently set by the BMS.

Under a static pressure reset strategy, the BMS will periodically (every 15 minutes) pollVAV box damper positions and adjust the static pressure set point to maintain the boxthat is most open at 95% damper position.

A static pressure reset strategy will reduce fan power consumption and yield energysavings by reducing the static pressure to the lowest required limit without affectingdesired space conditions.

Upper C

ampus-

9&

10thGrade


Estimated Gross Implementation Costs: $2,429


Net Estimated Implementation Costs: $2,429



Page 28Page 28


ECM #10: Convert Electric Baseboard andCabinet Unit Heating Coils to Hot Water

The electric rate for the six electric radiators in the Lower Campus is $0.16 per kilowatthour. The equivalent natural gas cost for a 95% efficient natural gas hot water heater is$3.60 per therm. The actual price for natural gas is approximately $1.44 per therm.

Replacing the electric coils in the unit ventilators and cabinet unit heaters with hot watercoils will provide over $6,000 in annual savings. This project will require circulationpumps and distribution piping and will utilize existing hot water boilers.

Lower School -

11&

12thGrade







Page 29Page 29


ECM #11: Kitchen Hood Make-Up AirSystem

Savings will be generated during the winter by optimizing the time of day schedule andalso by reducing the amount of make-up air that needs to be fully conditioned to zonetemperature. Additional fan savings will also be realized since the air will be locallysupplied rather than blowing through long runs of ductwork from the packaged rooftopunits.

Lower C

ampus- 11

&12th

Grade

Estimated Annual Energy Cost Savings: $400






Page 30Page 30


ECM #11: Kitchen Hood Make-Up AirSystem

Sample Existing Time of Day from BMS for Kitchen Make-Up Air Unit

Acutal Hours

of Operation

Proposed

Hours

0 00 00 0

2.1 2.19.3 9.3

44.3 38.681.4 64.3127.1 87.9153.6 110.7155.0 112.9Total Total572.9 425.7

Page 31Page 31


ECM #12: VFDECM #12: VFD’’s on Hot Water Systems on Hot Water SystemPumpsPumps

One (1) pump (P-1) in the Upper Campus MER serves the gym’s HVU and classroomunit ventilators are equipped with two way valves and a 10 HP constant speed motors.The pump operates in online / standby mode.

The pumps run at full speed regardless of system hotwater demands.

Annual system pumping cost may be reduced by installing variable frequency drives(VFD) on the pump motors. Pump speed would be based upon system differentialtemperature/pressure.

The installation cost estimates assume replacing the motors with premium efficiencyinverter-duty motors, and VFD’s will be installed on both pump motors.

Upper C

ampus-

9&

10thG

rade



NJ Smart Start Rebate: $1,290




Page 32Page 32


ECM #13: Install Timers on Hot WaterECM #13: Install Timers on Hot WaterHeatersHeaters

The Upper Campus has one (1) electric domestic hot water heater. The hot water heateris rated for 40 gallons and 4.5 kilowatts of heating.

Although hot water heaters/storage tanks are insulated, there is significant standby heatloss during off hours. The heating elements turn on throughout unoccupied hours tomaintain the desired set point temperature.

Placing timers on the units will turn the units off during unoccupied hours and turn themback on two hours prior to occupation. This setback schedule eliminates energy used tomake up the standby heat loss.

*Equipment costonly. Assumesinstall by staff.

Upper C

ampus-

9&

10thGrade


Estimated Gross Implementation Costs: $190


Net Estimated Implementation Costs: $190



Page 33Page 33


ECM # 14: WeatherECM # 14: Weather--stripping Exteriorstripping ExteriorDoorsDoors

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

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

Energy savings will be realized by the reduction of hotand cold outside air that the building’s HVACequipment must condition to room temperature.

Picture: Hunterdon Lower Campus

Infiltration Area

Lower Cam

pus-

11&

12th

Grade







Page 34Page 34


ECM #15: Replace Dishwasher Electric HotECM #15: Replace Dishwasher Electric HotWater Booster with a Gas Fired UnitWater Booster with a Gas Fired Unit

The kitchens are equipped with electric hot water boosters to raise water temperaturesfor dishwashing.

The average electric cost is about $0.16 per kilowatt hour. The equivalent natural gascost for a 95% efficient natural gas hot water heater is $4.55 per therm. The actual pricefor natural gas is approximately $1.44 per therm (about 1/4 the cost of using electric heat).

Replacing the electric heaters with natural gas units will provide at least $3,300 in annualsavings and will reduce electric demand by 90 kW.

Prior to installing gas-fired equipment in the kitchen, refer to applicable fire codes forproper ventilation requirements.

Electric hot water booster heater

Upper C

ampus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTA

LS

Estimated Annual Energy Cost Savings: 1,700$ 1,600$ $3,300






Page 35Page 35


ECM#16: Convert Supply Fan VortexControl to VFD’s

The air handlers supply air to a variable air volumesystem. The fan air flow is controlled by vortex damperslocated at the fan.

Vortex fan control is an effective and energy-efficientmethod of controlling fan air flow. However, controlling fanspeed with a variable frequency drive will improve controland provide twice the energy savings.

This ECM requires replacement of the motors as well asinstallation of the VFD’s. Savings include upgradingmotors to high efficiency models.

Air Handling Unit w/ Vortex Dampers

Upper Campus- 9

&10th

Grade

Lower Campus- 11

&12th

Grade

TOTALS



NJ Smart Start Rebate: $14,500 $12,100 $26,600




Page 36Page 36


ECM #17: Lighting Upgrade

Although most of the current light fixtures have higher efficiency T-8 fluorescent lamps andballasts, improved light fixture designs will further reduce lighting energy costs by reducingthe total number of lamps and fixtures while maintaining the minimum lighting output as perstate codes. The gym currently has HID lighting and should be replaced with High OutputT8’s which will reduce electric consumption by approximately 50%.

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

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

Upper Campus

- 9

&10th

Grade

Lower Campus

-

11&

12thG

rade

TOTALS







Page 37Page 37


ECM #18: Replace Electric Kitchen GriddleECM #18: Replace Electric Kitchen GriddleFuel Switch w/ Natural Gas Fired EquipmentFuel Switch w/ Natural Gas Fired Equipment

The high school’s kitchen are equipped with an electric griddle.

The school’s electric cost is over $0.16 per kilowatt hour. The equivalentnatural gas cost for a 95% efficient natural gas hot water heater is $4.00per therm. The actual price for natural has is approximately $1.44 pertherm (almost 300% less than electric heat).

Replacing the electric heaters with natural gas units will provide at least$2,820 in annual savings and will reduce electric demand by 42 kW.Dome-Tech recommends contacting the local natural gas representativeto discuss installing natural gas supply piping. Electric oven

Upper C

ampus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTA

LS







Page 38Page 38


ECM #19: Replace Kitchen Equipment withECM #19: Replace Kitchen Equipment withEnergy Star Rated EquipmentEnergy Star Rated Equipment

Most of the kitchen equipment (reach-in coolers/freezers, food warmers,dishwashers) in the Lower School is older and less efficient than newer higherefficiency equipment.

Replacing the electric equipment with higher efficiency Energy Star labeledequipment will provide at least $6,600 in annual savings.

Improvements in kitchen equipment include lower idle rates, better insulationwhich reduces the amount of standby losses through sides and top, andpremium efficient fan motors.

Electric Convection Oven Freezer RefrigeratorFood WarmerDishwasher

Page 39Page 39


ECM #19: Replace Electric KitchenECM #19: Replace Electric KitchenEquipment with Energy Star (continued)Equipment with Energy Star (continued)

Upper C

ampus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTA

LS







Equipment Description Quantity

Estimated

Annual

Savings($)

Glass Door Reach-in Refrigerator (24 cu ft)9

Double Door Refrigerator (44 cu ft) 3

Single Door Refrigerator (24 cu ft) 1

Dishwasher 1 $1,760

Hot Food Cabinet 2 $1,290

Ice Machine 1 $950

$3,180

9 & 10th grade

Equipment Description Quantity

Estimated

Annual

Savings($)

Glass Door Reach-in Refrigerator (24 cu ft)5 $1,169Double Door Refrigerator (44 cu ft) 3 $517Single Door Refrigerator (24 cu ft) 2 $326Dishwasher 1 $2,480Hot Food Cabinet 1 $590Ice Machine 1 $870

11&12th grade

Page 40Page 40


ECM #20: 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-phasepower), motors for the fans are typically shaded-pole orpermanent-split-capacitor types, both of which are very inefficient.

Inexpensive controllers are currently available that slow thesefans when full-speed operation is unnecessary.

Reducing the operating speed reduces the energy consumption ofthe fan. In addition, the motor produces less heat at slowerspeeds, which means that the compressor has less heat toremove from the refrigerated compartment.

Upper C

ampus- 9

&10th

Grade

Lower C

ampus-

11&

12thGrade

TOTA

LS

Estimated Annual Energy Cost Savings: $100 $140 $240






Page 41Page 41


ECM #21: Premium Efficiency Motors

Most of the existing motors serving the AHU’s and pumps are standard efficiency motors.See the appendix for a detailed list of motors surveyed for this ECM.

Dome-Tech recommends replacing select regularly operated standard efficiency motors(pumps and large AHU’s) with new premium efficiency motors. For all other motors, whenthe motor starts to fail it is recommended that they are replaced with new premiumefficiency motors. The new motors would reduce the electrical consumption of thebuildings’ motors by approximately $1,260/year.

Typical Efficiencies for Standard & Premium Motors (1800 RPM Open Drip-Proof Motors)

Upper Campus- 9

&10th

Grade

Lower Campus- 11

&12th

Grade

TOTALS

Estimated Annual Energy Cost Savings: $630 $630 $1,260


Estimated Like In-Kind Costs: $13,200 $4,840 $18,040


Net Estimated Implementation Costs: $2,860 $840 $3,700



NOTE: Costs for Like-In-Kind Replacements are used for capital improvement projects that are not warranted solely based on energy savings. It isassumed that the existing equipment will be replaced at the end of its useful life. The net incremental implementation cost is the difference between apremium efficiency model/configuration and like-in-kind replacement.

Page 42Page 42


ECM #22: High Efficiency Boilers

The Upper Campus - Mechanical Room has two (2) Weil McClain boilers that arescheduled to be replaced.

The Weil Mclain boilers are at the end of their equipment service life (ASHRAE statesthe service life of similar equipment to be 25 years). The boilers’ age, size, type andconfiguration of the boilers do not lend themselves to cost-efficient operation.

If the existing boilers were replaced with high efficiency gas-fired condensing boilers,savings will be incurred in two ways. In modular boiler applications, multiple smallerboilers are installed to meet the overall building load. Each boiler operatesindependently, eliminating the “all on/all off” operation of single burner boilers. Asbuilding load increases only those units necessary to meet the load are fired. Thisallows each unit to run at optimal efficiency.

The high first cost of a new boiler system precludes this ECM from being justified byeconomics alone. However, reliability issues warrant consideration of this project aspart of a long-term capital improvement plan. Installation of new boilers would allowboiler runtimes to be equally distributed and would allow for reliable backup capacityshould one boiler fail or require repairs.

Page 43Page 43


ECM #22: High Efficiency Boilers(continued)

High efficiency boilers should be considered when the existing boilers near the end of theiruseful equipment lives.

Upper Cam

pus-

9&

10thGrade



Estimated Like In-Kind Costs: $326,700

NJ Smart Start Rebate: $9,000


Gross Estimated Simple Payback (years): 19.8

Net Estimated Simple Payback (years): 8.4


NOTE: Costs for Like-In-Kind Replacements are used for capital improvement projects that are not warranted solely based on energy savings. It isassumed that the existing equipment will be replaced at the end of its useful life. The net incremental implementation cost is the difference between apremium efficiency model/configuration and like-in-kind replacement.

Page 44Page 44


ECM #23: Rooftop Unit Replacement

Many of the existing Roof Top Units (RTU’s) are well pasttheir estimated equipment service life (EESL) perASHRAE standards. The age of the units range from 2 –17+ years. (The EESL for air handling units is 15 years.)

Replacing these RTU’s with new, higher efficiency andfully controlled units will reduce annual energy andrepair/maintenance costs. Furthermore, new unitsequipped with VFDs on the supply fan motors will provideadditional savings compared to the current operatingscenario. (See ECM# 17 for further information related tofan power savings.)

Upper Campus-

9&

10thG

rade

Lower Campus-

11&

12thG

rade

TOTALS

Estimated Annual Energy Cost Savings: $700 $600 $1,300


Estimated Like In-Kind Costs $255,810 $131,400 $387,210


Net Estimated Implementation Costs: $1,290 $600 $1,890

Gross Estimated Simple Payback (years): 375.2 224.5 1.5

Net Estimated Simple Payback (years): 1.8 1.0 1.5


NOTE: Costs for Like-In-KindReplacements are used forcapital improvement projectsthat are not warranted solelybased on energy savings. It isassumed that the existingequipment will be replaced atthe end of its useful life. The netincremental implementation costis the difference between apremium efficiencymodel/configuration and like-in-kind replacement.

Page 45Page 45


ECM #23: Rooftop Unit Replacement(continued)

Energy Efficiency Ratios*

13

# of Units

$73

$/TonRebate

$8,210

TotalRebate

1396-15

ProposedSEER

ExistingSEER

UnitCapacity

(tons)

New Jersey SmartStart offers rebates that usually pay for the incremental cost toupgrade to higher efficient units.

RTU TAG Manufacturer Model NumberRTU TRANE TTA048C

RTU - 106 YORK D1H6060N07RTU - 108 YORK D1H6060N07RTU - 114 CARRIER 48HJE006RTU - 116 CARRIER 48HJE005RTU -104 TRANE YCD180B3RTU -100 TRANE YCD180B3RTU -102 TRANE YCD180B3

RTU-AC-A2 Lennox GCS16 813-125-66RTU-AC-B1 Lennox GCS24 813-130-26RTU-AC-B2 Lennox GCS24-813-130-2GRTU-AC-C2 Lennox GCS24 953-200RTU-AC-C3 Lennox GCS24-953-

Page 46Page 46


Renewable/Distributed Energy Measures

Distributed Generation & Renewable Energy

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

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

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

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

Page 47Page 47


Renewable Energy Technologies: Geothermal

Heat PumpThe heat pump is the driving force behind a GSHP system. A typical heat pump is an “air-to-water”unit, meaning the fluid carries heat to and from the earth (via the earth connection) is a water orwater/antifreeze mixture, and the HVAC distribution system in the building distributes hot or coldair. Heat pumps are self-contained in a single enclosure and consist of a refrigerant compressor,earth heat sink heat exchanger, and an air distribution system (fan, refrigerant-to-air heatexchanger, and condensate removal). Heat pumps range in size between 1 to 30 tons. For largerfacilities (such as schools and office buildings), several heat pump units are required.

Well FieldThe well field provides the heat exchanging mechanism between the GSHP system water side andthe earth. Well fields are either open or closed system. Open systems directly draw from anadjacent water source such as a lake or aquifer. Closed systems are typically polyurethane tubingburied in horizontal trenches or boreholes. The system selected for this analysis is a closed loop,horizontal well field. Wells are typically 250 to 500 feet deep each, and provide 1 ton of cooling forevery 250 linear feet. Wells are spaced at 15 to 20 feet on center, and larger systems can have asignificant footprint. In addition, the well boring portion of the project is capital intensive and usuallyaccounts for over 50% of the total GSHP system cost. Once installed, and well field has aestimated equipment service life of over 50 years.

Heating/Cooling Distribution SystemThe heating/cooling distribution system consists of the ductwork used to supply conditioned air thebuilding. As previously stated, larger facilities often require multiple heat pumps connected to acommon building loop. Buildings equipped with GSHP’s may also require make-up air units toprovide fresh air to the spaces, as well as an auxiliary heat source (such as a boiler or steam heatexchanger) to supplement heating during high heating degree days.

Geothermal ground source heat pump (GSHP) systems are HVAC systems that use the earth’s relatively constant temperature to provide heating or coolingto a system. In doing so, GSHP systems move 3 to 5 times more energy between the building and the ground than is actually consumed by the systemcomponents. In comparison, this represents a 30% decrease in energy consumption when compared to conventional HVAC systems that required chillers orrefrigeration coils for cooling and boilers or electric resistance coils for heating.

A GSHP system consists of three major components: the heat pump, the well field, and the heating/cooling distribution system.

Page 48Page 48


Renewable Energy Technologies: Geothermal

GSHP Pros & Cons

Payback period is longer thanexpected life of heat pumpequipment (exclusive of wellfield).

Ground conditions are notalways conducive to a well fieldinstallation. Conditions unknownuntil drilling is complete.

The well field requires asignificant amount of real estate.In this case, well over an acre ofland may be required dependingon depth of well field.

Annual HVAC energy reductionof over 30% and energy spend byover $131,000.

Well fields installations typicallylast over 50 years.

Reduction of annualgreenhouse gas emissions by812 tons per year.

Potential for removal of boilerand chiller / low efficiency DXrefrigeration system.

Potential for reducedmaintenance costs if the GSHPsystem replaces a cooling toweror other equipment.

ConsPros

The project economics and GSHP pro’s and cons are presented in the following tables:

A GSHP installation is not recommended as an immediate retrofit project. However, a detailed life cycleanalysis of a GSHP system versus a traditional HVAC system is recommended once the existingequipment exceeds the estimated equipment service life.

GSHP Economics*GSHP DX Roof Top

Gross Installation Cost Estimate $3,773,000 $1,886,500NJJ SSB Rebate $199,430 $42,581Net Installation Cost Estimate $3,573,570 $1,843,919Annual Energy Cost $348,814 $479,690Annual Electric Use, kWh 2,321,297 2,711,368Annual Natural Gas Use, Therms 0 49,813Annual CO2 Emmisions, Therms 812 1,241

*Based upon Hunterdon Central High School HVAC Systems & Energy Profile

Simple Payback on Net Install Cost GSHPNet Installation Cost Estimate $3,573,570Annual Energy Savings $130,875Simple Payback 27.3

Simple Payback on Incremental Cost of GSHPNet Installation Cost Estimate $1,729,651Annual Energy Savings $130,875Simple Payback 13.2

Page 49Page 49


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

Flemington Wind SpeedAs previously stated, wind speed is critical to the successful wind turbine installation. According to average wind data from NASA’s Surface Meteorology andSolar Energy records, the average annual wind speed for the Hunterdon Central High School area is 4.6 meters per second. Ideal wind speeds for asuccessful project should average over 6 meters per second.

For the Hunterdon Central High schools, 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 TurbinesModel: AeroVironment AVX1000Height: 8.5’Rotor Diameter: 6’Weight: 130 lbs.Cut-In Wind Speed: 2.2 m/sMaximum Generating Capacity: 1 kW

5 kW Ground MountModel: WES5 TulipoHeight: 40’Rotor Diameter: 16’Weight: 1,900 lbs.Cut-In Wind Speed: 3.0 m/sMaximum Generating Capacity: 5.2 kW

50 kW Ground MountModel: Entegrity EW50Height: 102’Rotor Diameter: 50’Weight: 21,000 lbs.Cut-In Wind Speed: 4.0 m/sMaximum Generating Capacity: 50 kW

Page 50Page 50


Renewable Energy Technologies: Wind

Wind Turbine Pros & Cons

Payback period is significant(over 10 years).

Average area wind speed is notideal and impacts performance.

Prone to lighting strikes.

Bird collisions are likely, butmay be reduced with avian guard(building integrate only).

Zoning may be an issue. Checkwith local zoning regulations.

Wind turbines do create noise,although below 50 dB (a typicalcar ride is over 80 dB).

Annual reduction in energyspend and use can be potentiallyreduced by almost $33,200(4.3% reduction).

Typical equipment life span is15-30 years.

Reduction of annualgreenhouse gas emissions by 77tons per year.

A wind turbine project could beincorporated into science andother curriculums to raise studentawareness of energy alternatives.

High visible “green” project.

ConsPros

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

Due to attractive payback and high potential for energy reduction, the 50 kilowatt ground mounted windturbine project appears to be the most attractive option. Should the Hunterdon Central High Schoolsdecide to pursue a wind turbine project, Dome-Tech recommends commissioning a more detailed study.

Wind Turbine EconomicsBuilding

IntegratedGround Mount

5 kWGround Mount

50 kWGross Installation Cost Estimate $130,000 $62,400 $500,000NJJ SSB Rebate $47,498 $37,483 $153,672Net Installation Cost Estimate $82,502 $24,917 $346,328Annual Energy Savings $2,230 $1,760 $33,201Simple Payback 37.0 yrs. 14.2 yrs. 10.4 yrs.System Capacity 20 kW 10 kW 100 kWAnnual Avoided Energy Use 14,843 kWh 11,713 kWh 220,944 kWhAnnual CO2 Emmisions, Therms 5 4 77% of Annual Electric Use* 0.3% 0.2% 4.3%Hunterdon Central High School: 5,115,788 kWh/Year.

Page 51Page 51


Renewable Energy Technologies: Solar Photovoltaic

Solar Photovoltaic

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

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

Photons in sunlight hit the solar panel and are absorbed by semiconductingmaterials, 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, inseries, creating an additive voltage. The modules are connected in an array.The power output of an array is measured in watts or kilowatts, and typicalenergy needs are measured in kilowatt-hours.

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

Page 52Page 52


Renewable Energy Technologies: SolarPhotovoltaic (continued)

Solar Photovoltaic Systems

Roof Mount - Upper Campus Roof Mount - Lower Campus

System Capacity (kW ) 713 315

No. of Panels 3,102 1,368

Annual Output (kWh) 751,987 331,631

Roof Mount - Upper Campus Roof Mount - Lower Campus

System Capacity, kw-dc (maximum utilization of roof space) 713 kw dc 315 kw dcAnnual Electric Generation, kwhrs of AC electricity produced 751,987 kwh 331,631 kwhTotal Annual Facility Electric Use, kwhrs 5,115,788 kwh 2,818,923 kwh% of Total Annual Usage 15% 12%All-In Cost of Electric Year 1 $0.156 / kwh $0.166 / kwhAnnual Electric Cost Savings $117,310 $55,051Estimated SREC Value (Year 1): $640 / SREC $640 / SRECEstimated Year 1 SREC Revenue: $481,023 $212,134

Equivalent Annual CO2 Emission Reduction (tons per year)1

412 tons/yr 182 tons/yr

Equivalent Cars Removed From Road Annually2

71 31

Equivalent Acres of Trees Planted Annually3

112 50System Installed Cost (does not include value of tax credits) $4,994,220 $2,202,480Simple Payback (includes tax incentives) 9.8 9.7IRR (25 Years) 7% 7%

1. Estimated CO2 Emissions Rate: 1.096 lbs/kWh

2. EPA Estimate: 11,560 lbs CO2 per car

3. EPA Estimate: 7,333 lbs CO2 per acre of trees planted

Page 53Page 53


Renewable Energy Technologies: SolarPhotovoltaic (continued)

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

Hunterdon Central Regional High Schoolswould place your facilities at the forefront ofrenewable energy utilization. This allows thedistrict the opportunity to not only gainexperience with this energy technology, butalso to win recognition as an environmentallysensitive, socially conscience institution.Additionally, these projects could beincorporated into science education andadditional curriculums to raise awareness ofcurrent energy alternatives to the youngergenerations.

Page 54Page 54


Renewable Energy Technologies: CHP/Cogeneration

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

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

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

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

Not recommended for Hunterdon Central High School due to the lackof thermal requirements in the summertime.

Page 55Page 55


Utility Tariff and Rate Review:Utility Tariff and Rate Review: Electricity

Accounts and Rate Class: The High School is served by two electric accountsbehind Jersey Central Power & Light. The Upper Campus is under rate classGeneral Service Primary (GP) and the Lower campus is under General Service(GS).

Electric Consumption and Cost: Based on the one-year period studied, thetotal annual electric expenditure for the High School is about $1,266,000 and thetotal annual consumption is about 7,934,000 kilowatt-hours (kWh).

Average/Effective Rate per kWh: For the one year period studied, the HighSchool’s average monthly cost per kilowatt-hour ranged from 11.87 ¢/kWh to19.21 ¢/kWh, inclusive of utility delivery charges. The High School’s overall,average cost per kilowatt-hour during this period was 16.11 ¢/kWh.

o Note that these average electric rates are “all–inclusive”; that is, they include all supplyservice (generation and commodity-related) charges, as well as all delivery servicecharges. The supply service charges typically represent the majority (60-80%) of thetotal monthly bill. It is the supply portion of your bill that is deregulated, which isdiscussed on subsequent slides in this section.

Page 56Page 56


Utility Tariff and Rate Review:Utility Tariff and Rate Review: Natural Gas

Accounts and Rate Class: The High School is served by three natural gas accountsbehind Elizabeth Town Gas under rate class Basic Gas Supply Service-GeneralDelivery.

Natural Gas Consumption and Cost: Based on the one-year period studied, thetotal annual natural gas expenditure for the High School is about $18,000 and the totalannual consumption is about 186,000 therms (th). Natural gas is used predominantlythroughout the winter period for heating purposes.

o Retail Energy Supplier: For the one-year period studied, the High School wassupplied with natural gas from Pepco Energy at various rates between $1.028 and$1.289 per therm.

Average/Effective Rate per Therm: For the one year period studied, the HighSchool’s average cost per therm ranged from $0.77 to $1.64 per therm, inclusive ofutility delivery charges. The High School’s overall, average cost per therm during thisperiod was $1.00 per therm.

o Note that these average natural gas rates are “all–inclusive”; that is, they include all supplyservice (interstate transportation and commodity-related) charges, as well as all deliveryservice charges. The supply service charges typically represent the majority (60-80%) of thetotal monthly bill. It is the supply portion of your bill that is deregulated, which is discussed onsubsequent slides in this section.

Page 57Page 57


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

Per this process, every single electric account for every customer in New Jersey wasplaced into one of two categories: BGS-FP or BGS-CIEP. BGS-FP stands for BasicGeneration 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 largestelectric accounts in the State (those served under a Primary or a Transmission-level rateclass) were moved into BGS-CIEP pricing. All other accounts (the vast majority ofaccounts in the State of New Jersey, including residential) were placed in the BGS-FPcategory, receiving default electric supply service from the utility.

The New Jersey Board of Public Utilities (NJBPU) has continued to move new large energyusers 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, thisthreshold 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 thatfacility/account is in the BGS-FP category. If you are unsure, you may contact Dome-techfor assistance.

Page 58Page 58


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

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

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

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

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

Secondary (small to medium) Electric Accounts:

o BGS-FP rate schedules for all utilities are set, and re-set, each year. Per the results of our State’s BGSAuction process, held each February, new utility default rates go into effect every year on June 1st. TheBGS-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 towww.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 toCompare. 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.

Primary (large) Electric Accounts:

o The BGS-CIEP category is quite different. There are two main features to note about BGS-CIEPaccounts that do not switch to a retail supplier for service. The first is that they pay an hourly marketrate for energy; the second is that these accounts also pay a “retail margin adder” of $0.0053/kWh. Forthese large accounts, this retail adder can amount to tens of thousands of dollars. The adder iseliminated 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 switchrelatively simple. However, the process of setting forth a buying strategy can be complex, which is whymany public entities seek professional assistance when shopping for energy.

Page 59Page 59


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

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

www.pjm.com.

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 customersthat remain with the utility for natural gas service pay rates that are market-based andthat fluctuate on a monthly basis. While natural gas is a commodity that is exceptionallyvolatile and that is traded minute-by-minute during open trading sessions, market ratesare “settled” each month, 3 business days prior to the subsequent month (this is calledthe “prompt month”). Customers that do not shop for a natural gas supplier will typicallypay this monthly settlement rate to the utility, plus other costs that are necessary to bringgas from Louisiana up to New Jersey and ultimately to your facility.

o For additional information about natural gas trading and current market futures rates forvarious commodities, you can refer to www.nymex.com.

o A customer’s decision about whether to buy natural gas from a retail supplier is typicallydependent upon whether a customer seeks budget certainty and/or longer-term ratestability. Customers can secure longer-term fixed prices by enlisting a retail natural gassupplier. Many larger natural gas customers also seek the assistance of a professionalconsultant to assist in their procurement process.

Page 60Page 60

Page 61


Retail Energy Purchasing:Recommendations and Resources (cont.)

To determine whether a savings opportunity currently exists for your entity, or for guidance on how to getstarted, you may contact Dome-Tech to discuss. There is also additional information provided below.

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 servecustomers 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

Pepco X X www.pepcoenergy.com

Hess X X www.hess.com

Sprague X X www.spragueenergy.com

UGI X X www.gasmark.com

South Jersey Energy X X www.sjindutries.com

Direct X X www.directenergy.com

Global X X www.globalp.com

Liberty X www.libertypowercorp.com

ConEd Solutions X www.conedsolutions.com

Constellation X www.constellation.com

Glacial X www.glacialenergy.com

Integrys X www.intergryenergy.com

Suez X www.suezenergyna.com

Sempra X www.semprasolutions.com

Woodruff X www.woodruffenergy.com

Mx Energy X www.mxenergy.com

Hudson X www.hudsonenergy.net

Great Eastern X www.greateasterngas.com

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

Page 62Page 62


Historical Energy Futures Settlement Prices

Below please find graphs that show the last several years’ worth of market settlementprices for both natural gas and electricity. Each of these graphs shows the average closingprices of a rolling 12-month period of energy futures prices. The graphs are representativeof 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 meantto provide an indication of the level of pricing that a particular customer might expect tosee, but the graphs do not account for the specific load profile of any individual energyuser.

Henry Hub 12 month stripHenry Hub 12 month strip PJM West 12 month stripPJM West 12 month strip

3.82

4.47

4.87

8.22

12.71

10.09

7.14

8.62

8.29

13.33

8.10

0.000

2.000

4.000

6.000

8.000

10.000

12.000

14.000

16.000

1/1

/02

3/1

/02

5/1

/02

7/1

/02

9/1

/02

11/1

/02

1/1

/03

3/1

/03

5/1

/03

7/1

/03

9/1

/03

11/1

/03

1/1

/04

3/1

/04

5/1

/04

7/1

/04

9/1

/04

11/1

/04

1/1

/05

3/1

/05

5/1

/05

7/1

/05

9/1

/05

11/1

/05

1/1

/06

3/1

/06

5/1

/06

7/1

/06

9/1

/06

11/1

/06

1/1

/07

3/1

/07

5/1

/07

7/1

/07

9/1

/07

11/1

/07

1/1

/08

3/1

/08

5/1

/08

7/1

/08

9/1

/08

11/1

/08

1/1

/09

3/1

/09

5/1

/09

7/1

/09

9/1

/09

Trade Date

$/M

MB

tu

3.90

49.5050.10

56.46

102.02

74.2384.08

70.53

62.06

52.10

48.82

0

20

40

60

80

100

120

140

1/1

/2003

3/1

/2003

5/1

/2003

7/1

/2003

9/1

/2003

11/1

/2003

1/1

/2004

3/1

/20

04

5/1

/2004

7/1

/2004

9/1

/20

04

11/1

/20

04

1/1

/2005

3/1

/2005

5/1

/2005

7/1

/2005

9/1

/20

05

11/1

/20

05

1/1

/2006

3/1

/2006

5/1

/2006

7/1

/2006

9/1

/2006

11/1

/20

06

1/1

/2007

3/1

/2007

5/1

/2007

7/1

/2007

9/1

/2007

11/1

/20

07

1/1

/2008

3/1

/20

08

5/1

/2008

7/1

/2008

9/1

/20

08

11/1

/2008

1/1

/2009

3/1

/20

09

5/1

/2009

7/1

/2009

9/1

/20

09

Trade Date

$/M

WH

Page 63Page 63


Operations & Maintenance

Field House

Issue: The double doors leading into the field house are open during all hours.Conditioned air is drawn into the field house which is being exhausted tooutside air via 8 large exhaust fans.

Impact: Leads to increased HVAC cost because of the significant amount ofconditioned air being exhausted through the field house area.

Recommendation: Close vestibule doors.

Page 64Page 64


Operations & Maintenance (Continued)

Upper Campus

Issue: Uncapped Skylights

Impact: The skylights on the Upper Campus Roof does not provide sunlight tothe lower floors instead it’s directly in the conditioned plenum space. Theyshould be capped and insulated to reduce thermal heat loss through theskylights.

Recommendation: Cap and insulate skylights.

Page 65Page 65



Upper Campus

Issue: The server room in the administration wing temperature is set to 68degrees. The temperature set point can be increased to 75 degrees.

Impact: Leads poor air quality, improper pressurization and ventilation andthermal comfort, improper run time and wasteful energy spending.

Recommendation: Increase temperature in server room.

Page 66Page 66



Upper Campus

Issue: Desiccant wheel in the Heat Recovery Units were removed due to airquality issues.

Impact: Leads to increased load on the Chilled Water Coils.

Recommendation: Reinstall the Heat Recovery Units and Optimize the HeatRecovery Units on HRU – 3,4,5,6.

Page 67Page 67



ENERGY AWARENESS & EDUCATION

Dome-Tech, Inc. understands that Hunterdon Central Regional High Schoolhas formally signed up for the New Jersey Green Schools Program, an energyeducation and conservation project funded by the New Jersey Board of PublicUtilities.

By approving participation in the New Jersey Green Schools Program,Hunterdon Central Regional High School agrees to return to the individualGreen Schools within the district, 25% of the weather-adjusted energy savingsthat can be attributed to the energy savings activities of these Green Schools.

The district has recruited a group of volunteers and students to be on theirGreen Schools Team. The team will implement energy awareness andconservation activities with their colleagues and students. The school’s energyusage will be monitored by TRC Energy Solutions and compared with a two-year baseline to determine what savings the team achieves.

The Green Schools Program, originally created by the Alliance to Save Energy,is based on the pilot program that was conducted in Brick Township and TomsRiver schools.

Page 68Page 68


Potential Project Funding Sources

Through the NJ Clean Energy program, the New Jersey Board of Public Utilities currently offersa variety of subsidies or rebates for many of the project types outlined in this report. Moredetailed 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 $420,000 inincentives for project implementation could be provided under this program. A minimumreduction target of 15% compared to baseline must be achieved. Energy modeling of building andsystems and energy reduction plan is required (incentives provided to pay for part of study costs.)

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

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. Underthis program, scoring criteria based on the project's environmental and economic development impact determines thepercentage 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=722&levelid=6&midid=1357

Page 69Page 69


Potential Project Funding Sources (cont’d)

Clean Renewable Energy Bonds (CREBs) – For Renewable Energy ProjectsFederal Loan Program for Solar Thermal Electric, Photovoltaics, Landfill Gas, Wind, Biomass, Hydroelectric,Geothermal Electric, Municipal Solid Waste, Hydrokinetic Power, Anaerobic Digestion, Tidal Energy, Wave Energy,Ocean Thermal

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

Page 70Page 70


Next StepsNext Steps

The following projects should be considered for implementation:

Temperature Setpoint Optimization

Optimize Domestic Hot Water Systems

Adjust Ventilation Controls (excess ventilation)

Vending Machine Power Management

Time of Day Optimization

Lighting upgrades

Energy Procurement (Electricity & Gas)

Note that additional “Phase 2” engineering may be required to further develop these projects, tobring them to bidding and implementation.

Consider applying for PayConsider applying for Pay--ForFor--Performance ProgramPerformance Program

Page 71Page 71

Documents

PP Report.Hunterdon HS rev2 - Amazon S3 · Hunterdon Central Regional High School, Flemington, NJ Energy Audit Report, October 2009 ECM# 3: Excessive Ventilation (continued) Picture: