Secaucus Recreation Center
SECAUCUS RECREATION CENTER LOCAL GOVERNMENT ENERGY AUDIT
FOR NEW JERSEY BOARD OF PUBLIC UTILITIES January 2014 Prepared by:
6 Campus Drive Parsippany, NJ 07054 (973) 538-2120 CHA PROJECT NO. 27601
_____________________________________________________________________________ New Jersey BPU – Secaucus Recreation Center – Energy Audit
TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY .................................................................................................... 1 2.0 BUILDING INFORMATION AND EXISTING CONDITIONS ................................................ 3 2.1
Secaucus Recreation Center ......................................................................................................... 3
3.0 UTILITIES ........................................................................................................................... 6 4.0 EPA PORTFOLIO MANAGER ............................................................................................ 8 5.0 ENERGY CONSERVATION MEASURES........................................................................... 9 5.1
Building Envelope.......................................................................................................................... 9
5.2
HVAC Systems ............................................................................................................................... 9
5.2.1
ECM-1 Install Demand Control Ventilation (DCV) for Gymnasium............................................... 9
5.2.2
ECM-2 Replace Motors with Premium Efficiency Motors .......................................................... 10
5.2.3
ECM-3 Install VFD on the Pool Water Circulation Pump ............................................................ 11
5.2.4
ECM-4 Install Pool Cover ............................................................................................................ 11
5.3
Control Systems .......................................................................................................................... 12
5.4
Domestic Hot Water System ....................................................................................................... 12
5.4.1
ECM-5 Insulate DHW Piping ....................................................................................................... 12
5.5
Kitchen Equipment...................................................................................................................... 13
5.6
Plumbing Systems ....................................................................................................................... 13
5.7
Lighting/Electrical Systems ......................................................................................................... 13
5.7.1
ECM-L1 Lighting Replacement / Upgrades ................................................................................. 13
5.7.2
ECM-L2 Install Lighting Controls (Occupancy Sensors) .............................................................. 13
5.7.3
ECM-L3 Lighting Replacements with Controls (Occupancy Sensors) ......................................... 14
6.0 PROJECT INCENTIVES ....................................................................................................15 6.1
Incentives Overview .................................................................................................................... 15
6.1.1
New Jersey Smart Start Program ................................................................................................ 15
6.1.2
Direct Install Program ................................................................................................................. 15
6.1.3
New Jersey Pay For Performance Program (P4P) ....................................................................... 16
6.1.4
Energy Savings Improvement Plan (ESIP) ................................................................................... 18
7.0 ALTERNATIVE ENERGY SCREENING EVALUATION .....................................................19 7.1
Solar ............................................................................................................................................ 19 _____________________________________________________________________________ New Jersey BPU – Secaucus Recreation Center - Energy Audit i
7.1.1
Photovoltaic Rooftop Solar Power Generation .......................................................................... 19
7.1.2
Solar Thermal Hot Water Generation......................................................................................... 20
7.2
Demand Response Curtailment .................................................................................................. 21
8.0 CONCLUSIONS & RECOMMENDATIONS........................................................................22 APPENDICES A Utility Usage Analysis i. List of Third Party Energy Suppliers B Equipment Inventory C ECM Calculations and Cost Estimates D New Jersey BPU Incentive Programs i. Smart Start ii. Direct Install iii. Pay For Performance Incentive Program (P4P) iv. Energy Savings Improvement Plan (ESIP) E Photovoltaic (PV) Solar Power Generation Analysis F EPA Portfolio Manager
_____________________________________________________________________________ New Jersey BPU – Secaucus Recreation Center - Energy Audit ii
REPORT DISCLAIMER This audit was conducted in accordance with the standards developed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) for a Level II audit. Cost and savings calculations for a given measure were estimated to within ±20%, and are based on data obtained from the owner, data obtained during site observations, professional experience, historical data, and s tandard engineering practice. Cost data does not include soft costs such as engineering fees, legal fees, project management fees, financing, etc. A thorough walkthrough of the building was performed, which included gathering nameplate information and operating parameters for all accessible equipment and lighting systems. Unless otherwise stated, model, efficiency, and c apacity information included in this report were collected directly from equipment nameplates and / or from documentation provided by the owner during the site visit. Typical operation and scheduling information was obtained from interviewing staff and spot measurements taken in the field.
_____________________________________________________________________________ New Jersey BPU – Secaucus Recreation Center - Energy Audit iii
1.0 EXECUTIVE SUMMARY This energy audit was performed by CHA in connection with the New Jersey Board of Public Utilities’ Local Government Energy Audit (LGEA) Program for Secaucus Recreation Center. The purpose of this report is to identify energy savings opportunities associated with major energy consumers and inefficient practices. This report details the results of the energy audit conducted for the buildings listed in Table 1: Table 1: Buildings Evaluated: Building Name
Address
Square Feet
Construction Date
Secaucus Recreation Center
1200 Koelle Blvd Secaucus, NJ 07094
26,000
2008
The potential annual energy cost savings and simple payback for the recommended ECMs is show below in Table 2. The overall savings, cost and payback for all ECM’s is shown in Table 3. The potential annual energy cost savings and simple payback for ECMs are shown in Section 5.0. Each individual measure’s annual savings are dependent on that measure alone, there are no i nteractive effects calculated. There are three options shown for Lighting ECM savings; only one option can be chosen. Incentives shown (if any) are based only on the SmartStart Incentive Program. Each measure recommended by CHA typically has a simple payback period of 15 years or less to be consistent with the requirements of the Energy Savings Improvement Plan (ESIP) which has a maximum payback period of 15 years. Occasionally, we will recommend an ECM that has a longer payback period, based on the need to replace that piece(s) of equipment, such as a boiler for example. Table 2: Total Recommended ECM Savings per Building Building Name Secaucus Recreation Center
Total Savings*
Payback
$19,093
3.6
*Recommended measures only
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ECM #
Table 3: Summary of Energy Conservation Measures
1
2
3 4
Energy Conservation Measure Demand Control Ventilation in Gymnasium Replace Motors with Premium Efficiency Motors Install VFD on Pool Water Circulation Pump Motor Install Pool Cover
Est. Costs ($)
Est. Savings ($/year)
Payback w/o Incentive
Potential Incentive ($)*
Payback w/ Incentive
Recommended (Y/N)
7,000
2,448
2.9
0
2.9
Y
1,423
204
7.0
0
7.0
Y
6,000
2,138
2.8
0
2.8
Y
53,955
1,042
51.8
0
51.8
N
5
Install DHW Pipe Insulation
51
11
4.8
0
4.8
Y
L1
Lighting Replacements / Upgrades
51,255
10,992
4.7
4,600
4.2
N
L2
Install Lighting Controls
9,693
5,641
1.7
1,270
1.5
N
L3
Lighting Replacements with Controls
60,948
14,293
4.3
5,870
3.9
Y
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2.0 BUILDING INFORMATION AND EXISTING CONDITIONS
2.1
Secaucus Recreation Center
Address: 1200 Koelle Blvd Secaucus NJ 07094 Gross Floor Area: 26,000 ft2 Number of Floors: Two Year Built: 2008 Description of Spaces: The building has gymnasium, swimming pools, multi purpose room, offices and locker rooms on the 1st floor and weight room, lunch roomand offices on the 2nd floor. Description of Occupancy: Secaucus Recreation Center has about 40 employees. Number of Computers: This building has about 15 computers. Building Usage: This facility typically opens from 5:30AM to 9:30PM on weekdays and from 8:00AM to 6:00PM on weekends. Therefor, the typical operational of this building is 100 hours per week.
Building Envelope
Construction Materials: Concrete masonry blocks Façade: Brick veneer Roof Type: Roof is comprised of structural-steel, insulation layer and a black waterproof membrane. The roof appears to be in good condition. Windows: Double pane windows with aluminum frames appear to be in good condition. Exterior Doors: Aluminum framed doors with single pane windows. Seals around the doors are in good condition.
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Heating Ventilation & Air Conditioning (HVAC) Systems
The gymnasium, weight room, multipurpose room, offices of this building are heated by individual packaged gas fired heating/electric cooling units. The gymnasium has two AHUs installed under the ceiling. These two units manufactured by Sterling HVAC Products has equipped with gas fired heaters. Each gas heater in the Sterling unit has a rated 400 MBH energy input/320 MBH energy output which results in a 80% nameplate efficiency. A York unit equipped with a gas fired funace is used to heat the rest areas on the 1st floor. The gas fired heater has a rated 180 MBH energy input and 150 MBH energy input which results in a nam eplate efficiency of 80%. Similarly, a Y ork unit equipped with a gas fired heater is used to heat the rest areas on the 2nd floor. The gas fired heater has a rated 400 M BH energy input and 320 MBH energy output which results in a na meplate efficiency of 80%. Secaucus Recreation Center is cooled by decentralized RTUs and AHUs. The two gymnasium Sterling AHUs have a A AON DX cooling unit each. The condensing unit is location on the roof and the cooling capacity of each AAON DX unit is about 17 ton. The Seresco unit provides cooling to the swimming pool and has a cooling capacity of about 42 ton. The York RTU serving the 1st floor has a cooling capacity of 10 ton.The York RTU serving the 2nd floor has a cooling capacity of 15 ton. The details of the each cooling unit are shown in the following table: AHU/RTU No.
Manufacturer
Cooling Capacity (ton)
Serving Area
CU-1
AAON
~17 ton cooling
Gymnasium
CU-2
AAON
~17 ton cooling
Gymnasium
RTU-Pool
Seresco
~42 ton cooling
Swimming Pool
RTU-1
York
10 ton cooling
1 Floor Open Space
RTU-2
York
15 ton cooling
2 Floor Open Space
st
nd
This building is ventilated by the RTUs and AHUs mentioned in the section above. The air flow quantities of the RTUs and AHUs were obtained from mechanical drawings. The supply CFM and outdoor air (O.A) CFM of the RTUs and AHUs are shown in the table below: AHU/RTU No.
Supply CFM
Min Outdoor Air CFM
Max Outdoor Air CFM
Serving Area
AHU-1
6,500
1,750
6,500
Gymnasium
AHU-2
6,500
1,750
6,500
Gymnasium
RTU-Pool
17,900
3,200
3,200
Swimming Pool
RTU-1
3,125
875
3,125
1 Floor Open Space
RTU-2
5,500
1,200
5,500
2 Floor Open Space
st
nd
Note: all table values are based on original design drawings
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The swimming pool water is heated by a Seresco NE-40 and a Raypak pool heater which has a rated energy input of 511.5 MBH. The Seresco dehumidification unit is used to maintain the natatorium room temperature at 82 oF and relative humidity level at 50%. This unit has a rated cooling capacity of 514.7 MBH and reheat capacity of 384 MBH. Exhaust Systems: There are 4 exhaust fans of various sizes used to exhaust air from locker rooms, pool equipment room, and utility rooms. These exhaust fans run 24/7.
Controls Systems
The HVAC units in this building are controlled by individual programmable thermostats except for the swimming pool unit. These havebeen programmed to set back the temperature during unoccupied hours. During the heating season, the temperature is reset from 70 oF to 55 oF after the building operational hours. During cooling season, the temperature is reset from 73 oF to 85 oF. This building is operational from 5:30AM to 9:30PM during weekdays and from 8AM to 6PM during weekends. The swimming pool unit is controlled by manually adjusted thermostat. The swimming pool room temperature and relative humidity are set at at 84 oF and relative humidity level at 50% all of the time.
Domestic Hot Water Systems
The building is served by one (1) gas fired Lochinvar PowerFin domestic hot water heater. This heater has a rated 750 MBH energy input and has an e fficiency of 82%. This unit was installed in 2012. The 120 oF DHW is stored in an approximately 200 gallon storage tank. The DHW is used for all the sinks throughout the building and the showers in the locker room.
Kitchen Equipment
This building does not have a kitchen.
Plumbing Systems
Some of the bathrooms plumbing fixtures are low flow fixtures. The showerheads appear to be low flow shower fixtures.
Lighting / Electrical Systems
This building has a combination of 32watt T-8 fluorescent lighting, 42watt compact fluorescent lights (CFL), and s ome 400watt metal halides. The majority of the lighting fixtures in the building are 32watt T8 fluorescent fixtures. Metal halides are used in the gymnasium and pool room. The majority of the lights are controlled by wall switches with the exception of the two restrooms next to the front desk which are controlled by occupancy sensors. The exterior lights are metal halides and controlled by timers.
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3.0 UTILITIES Utilities include electricity and nat ural gas. E lectricity is delivered by Public Service Electric and Gas Company (PSE&G) and is currently supplied by Direct Energy LLC. Natural gas is delivered and supplied by PSE&G. The electricity and natural gas usage and cost in 2013 y ear for the building are as follows: Table 2: Actual Cost & Site Utility Usage
Building Name Unit Secaucus Recreation Center
Annual Usage
kWh
Annual Cost $
804,522
92,200.62
Electric Blended Consumption Peak Demand Rate Rate Demand Rate $/kWh $/kWh kW $/kW 0.115
0.10
182.40
5.96
Blended Rate: Average rate charged determined by the annual cost / annual usage Consumption Rate: Actual rate charged for electricity usage in kWh Demand Rate: Rate charged for actual electrical demand in kW
Building Name Unit
Secaucus Recreation Center
Natural Gas Annual Usage therms
Annual Cost $
Rate $/therm
13,891.63
0.97
14,321
See Appendix A for a detailed utility analysis.
Total Annual Energy Usage (kBtu) NG 34%
Electricity 66%
Total Annual Energy Cost ($) NG 13%
Electricity 87%
Figure 1: Annual Energy Usage
Figure 2: Annual Energy Cost
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Under New Jersey’s energy deregulation law, the supply portion of the electric (or natural gas) bill is separated from the delivery portion. The supply portion is open to competition, and customers can shop around for the best price for their energy suppliers. The electric and natural gas distribution utilities will still deliver the gas/electric supplies through their wires and pi pes – and respond to emergencies, should they arise – regardless of where those supplies are purchased. Purchasing the energy supplies from a company other than your electric or gas utility is purely an economic decision; it has no impact on the reliability or safety of the service. A dditional information on selecting a third party energy supplier is available here: http://www.state.nj.us/bpu/commercial/shopping.html. See Appendix A for a list of third-party energy suppliers licensed by the Board of Public Utilities to sell within the building’s service area.
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4.0
EPA PORTFOLIO MANAGER
The EPA Portfolio Manager benchmarking tool was used to assess the building’s energy performance. Portfolio Manager provides a site and source Energy Use Intensity (EUI), as well as an Energy Star performance rating for qualifying building types. The EUIs are provided in kBtu/ft2/year, and the performance rating represents how energy efficient a building is on a scale of 1 to 100, with 100 being the most efficient. In order for a building to receive and Energy Star label, the energy benchmark rating must be at least 75. A s energy use decreases from implementation of the proposed measures, the Energy Star rating will increase. The site EUI is the amount of heat and electricity consumed by a building as reflected in utility bills. Site energy may be delivered to a facility in the form of primary energy, which is raw fuel burned to create heat or electricity, such as natural gas or oil; or as secondary energy, which is the product created from a raw fuel such as electricity or district steam. To provide an equitable comparison for different buildings with varying proportions of primary and secondary energy consumption, Portfolio Manager uses the convention of source EUIs. T he source energy also accounts for losses incurred in production, storage, transmission, and delivery of energy to the site, which provide an e quivalent measure for various types of buildings with differing energy sources. The results of the Portfolio Manager benchmarking tool are contained in the table below. Building
Site EUI kBtu/ft /yr
Source EUI Btu/ft /yr
Secaucus Recreation Center
Energy Star Rating (1-100)
160.7
389.3
N/A
2
2
The building has an higher site EUI compared with the median EUI of similar buildings in EPA database. However, most of the buildings in the gym/health club category do not have an indoor pool. Therefore, the comparison may not reflect the energy usage standing of this building correctly. By implementing the measures discussed in this report such as DCV, VFD and so on, it is expected that the EUI can be reduced. The Portfolio Manager account can be accessed by entering the username and password shown below at the login screen of the Portfolio Manager website (https://www.energystar.gov/istar/pmpam/). A full EPA Energy Star Portfolio Manager Report is located in Appendix G. The user name and password for the building’s EPA Portfolio Manager Account has been provided to Amanda Nesheiwat, Environmental Coordinator for Secaucus Township.
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5.0
ENERGY CONSERVATION MEASURES
Energy conservation measures (ECM’s) are energy savings recommendations that typically require a financial investment. Energy savings can be in the form of: • electrical demand (KW=kilowatts), • electrical usage (KWh=Kilowatt-hour), • natural gas (Therms=100,000 BTU), • propane gas (Gallons=91,650 BTU), • #2Fuel Oil (Gallons =139,000 Btu), and • water (KGAL=1,000 gallons). These recommendations are influenced by the time period that it takes to “break even” referred to as “Simple Payback”. Simple payback is calculated by dividing the cost of implementing the ECM by the energy cost savings (in dollars) of that ECM. Another financial indicator of the performance of a particular ECM is the Return on Investment or ROI. ROI is used to evaluate the efficiency of an investment or to compare the efficiency of a number of different investments. To calculate ROI, the benefit (return) of an investment is divided by the cost of the investment; the result is expressed as a percentage or a ratio. Two other financial analyses included in this report are Internal Rate of Return (IRR) and Net Present Value (NPV). Internal Rate of Return is the discount rate at which the present value of a pr oject costs equals the present value of the project savings. Net Present Value is the difference between present value of an investment’s future net cash flows and t he initial investment. If the NPV equals “0”, the project would equate to investing the same amount of dollars at the desired rate. NPV is sometimes referred to as Net Present Worth. These values are provided in the summary in Appendix C.
5.1
Building Envelope
This building is constructed in 2008. All the double pane w indows and C MU walls are still in good condition. Therefore, there are no E CMs associated with the Building Envelope.
5.2
HVAC Systems
The following are ECMs associated with the HVAC Systems 5.2.1
ECM-1 Install Demand Control Ventilation (DCV) for Gymnasium
The gymnasium has (2) dedicated air handling units (AHU-1 and AHU-2) to provide heating, cooling and ventilation for this area. AHU-1 and AHU-2 are identical . Each has an estimated minimum of 1,750 CFM outdoor air which is 27% of outdoor air. It is believed that these two AHUs are designed to provide ventilation based on m aximum occupancy (about 233 people). Maximum occupancy occurs infrequently and by reducing the amount of ventilation, energy savings will occur. Installation of carbon dioxide (CO2) sensors will allow for a reduction of outside air during periods of low occupancy. The quantity of ventilation air will be based on maintaining an acceptable New Jersey BPU – Secaucus Recreation Center - Energy Audit
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CO2 level in the space as an indicator of indoor air quality. A limit of 1000 PPM of CO2 is recommended in ASHRAE Standard 62-2010, Ventilation for Acceptable Indoor Air Quality. Sensors will be installed to measure the building air CO2 concentration, and the control sequence of operation changed. During unoccupied periods, the outside air dampers should be closed. Bin weather data was utilized to obtain the annual operating hours required to maintain the current setpoint of 70°F. The BTU/Hr rating is calculated from the outdoor air (OA) conditions and air flow CFM (Cubic Feet per Minute). It is estimated that installing CO2 controls will reduce the energy usage by 25%. It should be noted that the percentage of the outdoor air in this calculation is based on the mechanical drawings. A more indepth energy study is recommended to calculate the energy savings based on the measured CFM of outdoor air and the fans running hours. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary Cost
Savings Electricity
Secaucus Recreation Center
Total
Annual Utility Savings
ROI
Potential
Payback
Payback
Incentive*
(without
(with
NG
$
kW
kWh
therms
$
7,000
0.0
14,683
783
2,448
7.7
Incentive)
Incentive)
$
Years
Years
0
2.9
2.9
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life:
15
years
Lifetime Savings:
220,238
kWh
5.2.2
11,745
$ 36,720
therms
ECM-2 Replace Motors with Premium Efficiency Motors
The pool water pump motors observed while onsite are regular efficiency motors. It is suggested to replace them with premium efficiency motors. The total savings of this measure comes from motor efficiency improvement. Savings from replacing the motors with premium efficiency motors were calculated first by using the efficiency of each motor to get the actual electric demand drawn by the motor and then multiplying them with load percentage and run hours. Implementation of this measure will require installation of premium efficiency motors. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary
Annual Utility Savings
Cost
Savings Electricity
$
Total
kW
kWh
ROI
Potential
Payback
Payback
Incentive*
(without
(with
Incentive)
Incentive)
Years
Years
NG therms
$
New Jersey BPU – Secaucus Recreation Center - Energy Audit
$
10 | P a g e
Secaucus Recreation Center
1,423
0.0
1,653
0
204
2.6
0
7.0
7.0
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life:
15
years
Lifetime Savings:
24,796
kWh
5.2.3
0
$ 3,054
therms
ECM-3 Install VFD on the Pool Water Circulation Pump Motor
The pool water pump motors observed while onsite were running 24/7 at a constant speed. After reviewing the drawings of the pool circulation system, it was found that the pump has a rated circulation rate of 375 gpm and the pool volume is 111,000 gallon. Therefore, the circulation pump has the capacity to turn over all the pool water in about 4.9 hours. The New Jersey Sanitary Code for Public Recreational Bathing has a requirement of circulation pump turnover rate which is 8 hour s. Hence, the existing circulation pump provides more than the required circulation rate than the required circulation rate. It is suggested that a variable frequency drive (VFD) be installed on the pump motor and the pump speed be reduced when the building is not operational. The total savings of this measure comes from motor speed and energy usage reduction during unoccupied hours. Implementation of this measure will require installation of variable frequency drive on the circulation pump motor. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary Cost
Savings Electricity
Secaucus Recreation Center
Total
Annual Utility Savings
ROI
Potential
Payback
Payback
Incentive*
(without
(with
Incentive)
Incentive)
$
Years
Years
0
2.8
2.8
NG
$
kW
kWh
therms
$
6,000
0
18,590
0
2,138
4.3
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life: Lifetime Savings:
5.2.4
15
years
278,855
kWh
0
therms
$32,068
ECM-4 Install Pool Cover
Swimming pools lose energy in a v ariety of ways and ev aporation is one of largest sources of energy loss. Indoor pools not only lose energy from evaporation, but also require room ventilation to control indoor humidity caused by the large amount of evaporation. Pool covers could help reduce the amount of evaporation when the pools are not in use and reduce the energy usage.
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The evaporation reduction would result in water savings, pool water heating energy reductions and ventilation energy usage savings. Implementation of this measure will require installation of pool cover, reel system and control system. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary Cost
Savings Electricity
Secaucus Recreation Center
Total
Annual Utility Savings
Potential ROI
Incentive*
kW
kWh
therms
$
53,955
0
3,759
377
1,042
(0.7)
Payback
(without
(with
Incentive)
Incentive)
$
Years
Years
0
>15
>15
NG
$
Payback
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life: Lifetime Savings:
5.3
15
years
56,390
kWh
5,651
$15,627
therms
Control Systems
There are no ECMs associated with the Controls Systems.
5.4
Domestic Hot Water System
The following are ECMs associated with the Domestic Hot Water Systems. 5.4.1
ECM-5 Insulate DHW Piping
Some domestic hot water (DHW) piping returning to the water heater in the mechanical room are currently not insulated. The heater supplies 120 oF hot water to the storage tank and the end users. The surface temperature of these pipes is about 120 oF. Adding insulation to the domestic hot water pipes will reduce energy usage and improve efficiency of the steam boiler. The energy saving calculation for this measure quantifies the heat loss from DHW pipe surfaces. It is estimated that the uninsulated domestic hot water pipe surface temperature is around 120 °F. The difference between the heat loss before the insulation and after the insulation is the energy saving for this measure. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary
Annual Utility Savings
Cost
Total Savings
Electricity
Potential ROI
NG
New Jersey BPU – Secaucus Recreation Center - Energy Audit
Incentive*
Payback
Payback
(without
(with
Incentive)
Incentive)
12 | P a g e
Secaucus Recreation Center
$
kW
kWh
therms
$
51
0
0
11
11
4.2
$
Years
Years
0
4.8
4.8
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life:
25
years
Lifetime Savings:
0
kWh
5.5
271
therms
$263
Kitchen Equipment
There is no Kitchen in this building. Therefore, no ECMs associated with kitchen equipment.
5.6
Plumbing Systems
There are no ECMs associated with the Plumbing Systems.
5.7
Lighting/Electrical Systems
The following are ECMs associated with the Lighting/Electrical Systems. 5.7.1
ECM-L1 Lighting Replacement / Upgrades
It is proposed to replace the gymnasium and natatorrium metal halide fixtures with LED light fixtures which have a longer life and consume much less energy. Energy savings for this measure were calculated by comparing the existing and proposed fixture wattages and using estimated times of operation. These calculations are based upon 1 to 1 replacements with the fixtures. They do not take into account lumen output and square footage. A more comprehensive study may be performed to determine correct lighting levels. Supporting calculations, including assumptions for lighting hours and annual energy usage for each fixture, are provided in Appendix C. The implementation cost and savings related to this ECM are presented in Appendix C and summarized as follows:
Budgetary Building Name
Annual Utility Savings
Cost
Savings Electricity
Secaucus Recreation Center
Total
Potential ROI
Incentive*
kW
kWh
therms
$
51,255
17
85,085
0
10,992
1.1
(without
(with Incentive)
$
Years
Years
4,600
4.7
4.2
* Incentive shown is per the New Jersey Smart Start Program. See section 6.0 for other incentive opportunities.
5.7.2
ECM-L2 Install Lighting Controls (Occupancy Sensors)
New Jersey BPU – Secaucus Recreation Center - Energy Audit
Payback
Incentive)
NG
$
Payback
13 | P a g e
Currently, there are occupancy sensors located in the restrooms next to the front lobby. However, the rest of the lights in the building are controlled by manual switches. It was observed that the lights in the locker rooms, storage rooms, and bathrooms were left on even if the rooms were not occupied. Review of the comprehensive lighting survey determined that lighting in these areas could benefit from installation of occupancy sensors to turn off lights when the areas are unoccupied. This measure recommends installing occupancy sensors for the current lighting system. Using a p rocess similar to that utilized in Section 5.7.1, the energy savings for this measure was calculated by applying the known fixture wattages in the space to the estimated existing and proposed times of operation for each fixture. The implementation cost and savings related to this ECM are presented in Appendix C Building Name
Budgetary
Annual Utility Savings
Cost
Electricity Secaucus Recreation Center
Total Savings
ROI
Potential
Payback
Payback
Incentive*
(without
(with
NG
$
kW
kWh
therms
$
9,693
0
49,048
0
5,641
4.8
Incentive)
Incentive)
$
Years
Years
1,270
1.7
1.5
* Incentive shown is per the New Jersey Smart Start Program. See section 6.0 for other incentive opportunities.
5.7.3
ECM-L3 Lighting Replacements with Controls (Occupancy Sensors)
This measure is a combination of ECM-L1 and ECM-L2; recommending replace/upgrade the current lighting fixtures to more efficient ones and installing occupancy sensors on the new lights. Interactive effects of the higher efficiency lights and occupancy sensors lead the energy and cost savings for this measure to not be cumulative or equivalent to the sum of replacing the lighting fixtures alone and installing occupancy sensors without the lighting upgrade. The implementation cost and savings related to this ECM are presented in Appendix C Building Name
Budgetary
Annual Utility Savings
Cost
Electricity Secaucus Recreation Center
Total Savings
Potential ROI
Incentive*
kW
kWh
therms
$
60,948
17
113,787
0
14,293
1.3
(without
(with Incentive)
$
Years
Years
5,870
4.3
3.9
* Incentive shown is per the New Jersey Smart Start Program. See section 6.0 for other incentive opportunities.
New Jersey BPU – Secaucus Recreation Center - Energy Audit
Payback
Incentive)
NG
$
Payback
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6.0 PROJECT INCENTIVES
6.1
Incentives Overview
The following sections give detailed information on available incentive programs including New Jersey Smart Start, Direct Install, New Jersey Pay for Performance (P4P) and Energy Savings Improvement Plan (ESIP). If the owner wishes to and is eligible to participate in the Energy Savings Improvement Plan (ESIP) program and/or the Pay for Performance Incentive Program (P4P), it cannot participate in either the Smart Start or Direct Install Programs. Refer to Appendix D for more information on t he Smart Start program. 6.1.1
New Jersey Smart Start Program
For this energy audit, The New Jersey Smart Start Incentives are used in the energy savings calculations, where applicable. This program is intended for medium and large energy users and provides incentives for: • Electric Chillers • Gas Chillers • Gas Heating • Unitary HVAC • Ground Source Heat Pumps • Variable frequency Drives/Motors • Refrigeration • Prescriptive and Performance Lighting and Lighting Controls The equipment is procured using a typical bid-build method, installed and paid for and then the incentives are reimbursed to the owner Refer to Appendix D for more information on the Smart Start program. 6.1.2
Direct Install Program
The Direct Install Program applies to smaller facilities that have a peak electrical demand of 200 kW or less in any of the previous 12 months. Buildings must be located in New Jersey and s erved by one of the state’s public, regulated electric utility companies. Direct Install is funded through New Jersey’s Clean Energy Program and is designed to provide capital for building energy upgrade projects to fast track implementation. The program will pay up t o 70% of the costs for lighting, HVAC, motors, refrigeration, and other equipment upgrades with higher efficiency alternatives. If a building is eligible for this funding, the Direct Install Program can reduce the implementation cost of energy conservation projects. The Direct Install program has specific HVAC equipment and lighting requirements and are generally applicable only to smaller package HVAC units, small boilers and lighting retrofits. New Jersey BPU – Secaucus Recreation Center - Energy Audit
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The program pays a maximum amount of $75,000 per building, and up t o $250,000 per customer per year. Installations must be completed by an app roved Direct Install participating contractor, a list of which can be found on the New Jersey Clean Energy Website. C ontractors will coordinate with the applicant to arrange installation of recommended measures identified in a pr evious energy assessment, such as this energy audit. The incentive is reimbursed to Secaucus Recreation Center upon successful replacement and payment of the equipment. The following table summarizes the eligibility of the building for direct install. I f the building does not qualify, it is because the electrical demand is greater than the maximum peak electrical demand of 200 kW for the last 12 month period. Building Name
Eligible for Direct Install (Y/N)
Eligible Categories
Secaucus Recreation Center
N
-
Refer to Appendix D for more information on this program. 6.1.3
New Jersey Pay For Performance Program (P4P)
The building will be eligible for incentives from the New Jersey Office of Clean Energy. The most significant incentives are available from the New Jersey Pay for Performance (P4P) Program. The P4P program is designed for qualified energy conservation projects applied to facilities whose demand in any of the preceding 12 months exceeds 100 kW. However, this average minimum has been waived for buildings owned by local governments or municipalities and non -profit organizations. Facilities that meet this criterion must also achieve a minimum performance target of 15% energy reduction by using the EPA Portfolio Manager benchmarking tool before and after implementation of the measure(s). If the participant is a municipal electric company customer, and a customer of a regulated gas New Jersey Utility, only gas measures will be eligible under the Program. Available incentives are as follows: Incentive #1: Energy Reduction Plan – This incentive is designed to offset the cost of services associated with the development of the Energy Reduction Plan (ERP). • Incentive Amount: $0.10/SF • Minimum Incentive: $5,000 • Maximum Incentive: $50,000 or 50% of Facility Annual Energy Cost The standard incentive pays $0.10 per square foot, up to a maximum of $50,000, not to exceed 50% of facility annual energy cost, paid after approval of application. For building audits funded by the New Jersey Board of Public Utilities, which receive an initial 75% incentive toward performance of the energy audit, facilities are only eligible for an additional $0.05 per square foot, up to a maximum of $25,000, rather than the standard incentive noted above. Incentive #2: Installation of Recommended Measures – This incentive is based on projected energy savings as determined in Incentive #1 (Minimum 15% savings must be achieved), and is paid upon successful installation of recommended measures. Electric New Jersey BPU – Secaucus Recreation Center - Energy Audit
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• • • Gas • • •
Base incentive based on 15% savings: $0.09/ per projected kWh saved. For each % over 15% add: $0.005 per projected kWh saved. Maximum incentive: $0.11/ kWh per projected kWh saved. Base incentive based on 15% savings: $0.90/ per projected Therm saved. For each % over 15% add: $0.05 per projected Therm saved. Maximum incentive: $1.25 per projected Therm saved.
Incentive cap: 25% of total project cost Incentive #3: Post-Construction Benchmarking Report – This incentive is paid after acceptance of a report proving energy savings over one year utilizing the Environmental Protection Agency (EPA) Portfolio Manager benchmarking tool. Electric • Base incentive based on 15% savings: $0.09/ per projected kWh saved. • For each % over 15% add: $0.005 per projected kWh saved. • Maximum incentive: $0.11/ kWh per projected kWh saved. Gas • • •
Base incentive based on 15% savings: $0.90/ per projected Therm saved. For each % over 15% add: $0.05 per projected Therm saved. Maximum incentive: $1.25 per projected Therm saved.
Combining Incentives #2 and #3 will provide a total of $0.18/ kWh and $1.8/therm not to exceed 50% of total project cost. Additional Incentives for #2 and #3 a re increased by $0.005/kWh and $0.05/therm for each percentage increase above the 15% minimum target to 20%, calculated with the EPA Portfolio Manager benchmarking tool, not to exceed 50% of total project cost. Total P4P incentives for this project are summarized below: Incentives $ Electric Gas Secaucus Recreation Center
Incentive #1 Incentive #2 Incentive #3 Total Total (Project)
$0 $25,718 $25,718 $51,436 $51,436
$0 $953 $953 $1,905 $1,905
Total $5,000 $26,670 $26,670 $58,341 $58,341
For the purpose of demonstrating the eligibility of the ECM’s to meet the minimum savings requirement of 15% for the Pay for Performance Program, the recommended ECM’s which have less than 15 y ears payback have been i ncluded in the incentive calculations. Refer to Appendix D for more information on this program.
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6.1.4
Energy Savings Improvement Plan (ESIP)
The Energy Savings Improvement Program (ESIP) allows government agencies to make energy related improvements to their facilities and pay for the costs using the value of energy savings that result from the improvements. Under the recently enacted Chapter 4 of the Laws of 2009 (the law), the ESIP provides all government agencies in New Jersey with a flexible tool to improve and reduce energy usage with minimal expenditure of new financial resources. ESIP allows local units to use “energy savings obligations” to pay for the capital costs of energy improvements to their facilities. This can be done o ver a m aximum term of 15 years. Energy savings obligations are not considered “new general obligation debt” of a local unit and do not count against debt limits or require voter approval. They may be issued as refunding bonds or leases. Savings generated from the installation of energy conservation measures pay the principal of and interest on the bonds; for that reason, the debt service created by the ESOs is not paid from the debt service fund, but is paid from the general fund. For local governments interested in pursuing an ESIP, the first step is to perform an energy audit. Pursuing a Local Government Energy Audit through New Jersey's Clean Energy Program is a v aluable first step to the ESIP approach. The “Local Finance Notice” outlines how local governments can develop and i mplement an ESIP for their facilities. The ESIP can be prepared internally if the entity has qualified staff. If not, the ESIP must be implemented by an independent contractor and not by the energy savings company producing the Energy Reduction Plan. The ESIP approach may not be appr opriate for all energy conservation and ener gy efficiency improvements. Local units should carefully consider all alternatives to develop an approach that best meets their needs. Refer to Appendix D for more information on this program.
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7.0 ALTE ERNATIVE ENERGY E SC CREENING EVALUATION
7.1 7 7.1.1 7
Solar Phottovoltaic Ro ooftop Solar Power Ge eneration
The building werre evaluated d for the po otential to in nstall rooftop p photovolta aic (PV) sola ar panels for powe er generation n. Presentt technologyy incorporate es the use of solar ce ell array ys that produce direct current c (DC C) electricity . This DC current is converted tto altern nating curren nt (AC) with h the use of an electrica al device kno own as an inverter. Th he amou unt of available roof area determine es how large e of a solar a array can be e installed o on any given g roof. The T table be elow summa arizes the ap pproximate rroof area ava ailable on th he buildiing and the associated a solar s array size s that can be installed d. Building Name N Secaucus Re ecreation Center
Available A Roof Area Ft2 5,009
System Size kW 20.0
er generatio on model w was utilized to calculatte PV powe er The PVWATTS solar powe m is prov vided in App pendix E. generation; this model Installation of (PV V) arrays in the state New N Jersey w he owner to participate iin will allow th the New N Jersey solar s renewa able energy certificates program (SREC). This is a program m that has h been se et up to allow entities with w large am mounts of en nvironmenta ally unfriendly emiss sions to purrchase crediits from zero o emission (PV) solar-p producers. A An alternativve comp pliance pena alty (ACP) is s paid for by the high e emission pro oducers and d is set eacch year on a declin ning scale of o 3% per year. y One SREC cred dit is equiva alent to 100 00 kilow watt hours off PV electric cal productio on; these cre edits can be e traded forr period of 15 years s from the date d of installation. Pay yments that will be rece eived by the PV produce er will change from year to yearr dependentt upon supplly and dema and. There iss no definitivve way to t calculate an exact pric ce that will be b received b by the PV producer for S SREC creditts over the next 15 5 years. Ren newable Ene ergy Consu ltants estimates an ave erage of $82 2/ SREC C for 2012 and a this num mber was utilized in the ccash flow forr this report. The system cos sts for PV installations were de rived from recent sola ar contracto or budgetary pricing g in the state of New Jersey J and include the total cost o of the system m installlation (PV panels, inve erters, wiring, ballast, ccontrols). Th he cost of installation is curre ently about $4.00 $ per wa att or $4,000 per kW of in nstalled system, for a tyypical 100 kW W syste em. There arre other considerations that have no ot been inclu uded in this pricing, succh as the condition of the roof and a need forr structural rreinforcemen nt. Photovo oltaic system ms can be b ground mounted m if th he roof is not suitable, however, th his installatio on requires a substtantial amou unt of open property (no ot wooded) a and undergrround wiring g, which add ds more e cost. PV panels have e an approx ximate 20 yyear life spa an; howeverr, the inverte er devic ce that conve erts DC elec ctricity to AC C has a life sspan of 10 tto 12 years and will mosst likely y need to be replaced du uring the use eful life of the e PV system m.
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The implementation cost and savings related to this ECM are presented in Appendix E and summarized as follows:
Budgetary
Annual Utility Savings
Building Name Cost
Electricity
Secaucus Recreation Center
New Jersey Renewable
Savings
New Jersey Renewable Energy Incentive*
Total
SREC**
Payback (without incentive)
Payback (with incentives)
NG
Recommend ed
Photovoltaic (PV) Rooftop Solar Power Generation
$
kW
kWh
therms
$
$
$
Years
Years
Y/N
$80,000
20
24,512
0
$2,990
$0
$3,922
26.8
11.6
Y
** Estimated Solar Renewable Energy Certificate Program (SREC) at $131/1000 kWh
Note: The installation of PV Solar arrays are only recommended for owners whose individual paybacks are less than 15 years. 7.1.2
Solar Thermal Hot Water Generation
Active solar thermal systems use solar collectors to gather the sun’s energy to heat water, another fluid, or air. An absorber in the collector converts the sun’s energy into heat. The heat is then transferred by circulating water, antifreeze, or sometimes air to another location for immediate use or storage for later utilization. Applications for active solar thermal energy include providing hot water, heating swimming pools, space heating, and preheating air in residential and commercial buildings. A standard solar hot water system is typically composed of solar collectors, heat storage vessel, piping, circulators, and controls. Systems are typically integrated to work alongside a conventional heating system that provides heat when solar resources are not sufficient. The solar collectors are usually placed on the roof of the building, oriented south, and tilted around the site’s latitude, to maximize the amount of radiation collected on a yearly basis. Several options exist for using active solar thermal systems for space heating. The most common method involves using glazed collectors to heat a liquid held in a storage tank (similar to an active solar hot water system). The most practical system would transfer the heat from the panels to thermal storage tanks and transfer solar produced thermal energy to use for domestic hot water production. DHW and poll water heating are presently produced by gas-fired water heaters and, therefore, this measure would offer natural gas utility savings. This building has a slightly pitched roof space facing south and enough ground space for the collecter. therefore this measure is recommended. The implementation cost and savings related to this ECM are presented in Appendix E and summarized as follows:
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Budgetary Building Name Cost
Electricity
Secaucus Recreation Center
Savings
New Jersey Renewable Energy Incentive*
Payback (without incentive)
Payback (with incentives)
Total
Annual Utility Savings
NG
Recommend ed
Solar Hot Water Pool Heating
$
kW
kWh
therms
$
$
Years
Years
Y/N
$59,900
0
0
7,430
$7,208
$0
8.3
8.3
Y
Note: It is suggested that Secaucus Recreation Center consider the solar hot water pool heating first due to the roof space constraints. The solar hot water pool heating system will take less space and have better payback. The remaining roof space could be used for solar PV if Secaucus Recreation Center would consider solar PV too.
7.2
Demand Response Curtailment
Presently, electricity is delivered by PSE&G, which receives the electricity from regional power grid RFC (Reliability First Corporation) East. PJM Interconnection is the regional transmission organization (RTO) that coordinates the movement of wholesale electricity in all or parts of 13 states and the District of Columbia including the State of New Jersey. Utility Curtailment is an agreement with the utility provider’s RTO and an approved Curtailment Service Provider (CSP) to shed electrical load by either turning major equipment off or energizing all or part of a facility utilizing an emergency generator; therefore, reducing the electrical demand on the utility grid. This program is to benefit the utility company during high demand periods and utility provider offers incentives to the CSP to participate in this program. Enrolling in the program will require program participants to drop electrical load or turn on emergency generators during high electrical demand conditions or during emergencies. Part of the program also will require that program participants reduce their required load or run emergency generators with notice to test the system. A pre-approved CSP will require a minimum of 100 kW of load reduction to participate in any curtailment program. From December 2012 through November 2013 the following table describes the electricity load profile for each building. Building Name Secaucus Recreation Center
Peak Demand kW
Min Demand kW
Avg Demand kW
Onsite Generation Y/N
182.4
126.4
151.3
N
Eligible? Y/N Y
Implementation for this measure will require a load shedding sequence to be established by using a demand control system. If the building has onsite electricity generation available, some load can be supplemented by running that device. This building does not have a onsite generator, therefore, the demand shedding is not recommended.
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8.0 CONCLUSIONS & RECOMMENDATIONS
ECM #
The LGEA energy audit conducted by CHA for the Secaucus Recreation Building identified potential annual savings of $35,725 may be realized for the recommended ECMs, with a summary of the costs, savings, and paybacks as follows:
1
2
3 4
Energy Conservation Measure Demand Control Ventilation in Gymnasium Replace Motors with Premium Efficiency Motors Install VFD on Pool Water Circulation Pump Motor Install Pool Cover
Est. Costs ($)
Est. Savings ($/year)
Payback w/o Incentive
Potential Incentive ($)*
Payback w/ Incentive
Recommended (Y/N)
7,000
2,448
2.9
0
2.9
Y
1,423
204
7.0
0
7.0
Y
6,000
2,138
2.8
0
2.8
Y
53,955
1,042
51.8
0
51.8
N
5
Install DHW Pipe Insulation
51
11
4.8
0
4.8
Y
L1
Lighting Replacements / Upgrades
51,255
10,992
4.7
4,600
4.2
N
L2
Install Lighting Controls
9,693
5,641
1.7
1,270
1.5
N
L3
Lighting Replacements with Controls
60,948
14,293
4.3
5,870
3.9
Y
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APPENDIX A Utility Usage Analysis and rd 3 Party Energy Suppliers
Secaucus Recreation Center 1200 Koelle Blvd Secaucus NJ 07094 Utility Bills: Account Numbers Account Number 42 007 971 00 42 007 971 00
School Building Secaucus Recreation Center Secaucus Recreation Center
Location 1200 Koelle Blvd Secaucus NJ 07094 1200 Koelle Blvd Secaucus NJ 07094
Type Notes Electricity Natural Gas
Secaucus Recreation Center 1200 Koelle Blvd Secaucus NJ 07094
For Service at: Account No.: Meter No.: Electric Service
Secaucus Recreation Center 42 007 971 00 778019321
Consumption (kWh) 61,360 65,600 86,000 87,200 81,840 64,320 62,480 69,520 56,322 47,200 61,680 61,000 804,522
Month December-12 January-13 February-13 March-13 April-13 May-13 June-13 July-13 August-13 September-13 October-13 November-13 Total (last 12-months)
Demand (kW) 138.4 140.0 180.8 182.4 175.2 147.2 145.6 126.4 130.9 145.6 138.4 138.0 182.40
Delivery Supplier -
Provider Charges Delivery Supplier ($) ($) $ 2,664.10 $ 4,100.69 $ 2,840.84 $ 4,384.05 $ 3,453.87 $ 5,747.38 $ 3,476.63 $ 5,827.58 $ 3,300.16 $ 5,469.37 $ 2,707.55 $ 4,298.51 $ 3,991.25 $ 4,175.54 $ 3,985.95 $ 4,646.02 $ 3,502.04 $ 3,764.00 $ 3,374.62 $ 3,154.38 $ 2,687.57 $ 4,122.07 $ 2,449.84 $ 4,076.63 $38,434.42 $53,766.21
Notes 1 2 1.) Number of kWh of electric energy used per month 2.) 3.) 4.) 5.) 6.) 7.) 8.) 9.) 10.)
PSE&G Direct Energy LLC
Number of kW of power measured Electric charges from Delivery provider Electric charges from Supply provider Total charges (Delivery + Supplier) Charges based on the number of kWh of electric energy used Charges based on the number of kW of power measured Total Charges ($) / Consumption (kWh) Consumption Charges ($) / Consumption (kWh) Demand Charges ($) / Demand (kW)
3
4
Total ($) $6,764.79 $7,224.89 $9,201.25 $9,304.21 $8,769.53 $7,006.06 $8,166.79 $8,631.97 $7,266.04 $6,529.00 $6,809.64 $6,526.47 $92,200.62 5
Usage (kWh) vs. Demand (kW) Charges Consumption Demand ($) ($) $ 6,282.24 $ 482.55 $ 6,729.68 $ 495.21 $ 8,560.43 $ 640.82 $ 8,657.71 $ 646.50 $ 8,148.55 $ 620.98 $ 6,484.32 $ 521.74 $ 6,423.01 $ 1,743.78 $ 7,118.14 $ 1,513.83 $ 5,825.42 $ 1,440.62 $ 4,939.71 $ 1,589.29 $ 6,327.09 $ 482.55 $ 6,043.92 $ 482.55 $81,540.20 $10,660.42 6
7
Blended Rate ($/kWh) $ 0.11 $ 0.11 $ 0.11 $ 0.11 $ 0.11 $ 0.11 $ 0.13 $ 0.12 $ 0.13 $ 0.14 $ 0.11 $ 0.11 $ 0.115
Unit Costs Consumption Rate ($/kWh) $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.101
8
9
$ $ $ $ $ $ $ $ $ $ $ $ $
Demand ($/kW) 3.49 3.54 3.54 3.54 3.54 3.54 11.98 11.98 11.01 10.92 3.49 3.50 5.959 10
are estimated values due to missing bills
Utility Data - Secaucus Recreation Center Electric
Electric Usage - Secaucus Recreation Center (kW)
40,000
80
30,000
60
20,000
40
10,000
20
Jun-13
0
Nov-13
100
Oct-13
50,000
Sep-13
120
Aug-13
60,000
Jul-13
140
May-13
70,000
Apr-13
160
Mar-13
80,000
Feb-13
180
Jan-13
90,000
Dec-12
200
Usage (kWh)
100,000
Demand (kW)
(kWh)
0
Month
Utility Data - Secaucus Recreation Center Electric Graph
Secaucus Recreation Center 1200 Koelle Blvd Secaucus NJ 07094 For Service at: Account No.: Meter No.: Natural Gas Service Delivery Supplier -
Month December-12 January-13 February-13 March-13 April-13 May-13 June-13 July-13 August-13 September-13 October-13 November-13 Total (12 - Month)
Secaucus Recreation Center 42 007 971 00 260017
PSEG PSEG
Consumption (Therms) 2,052 2,898 2,119 1,179 1,213 693 451 33 315 559 810 1,998 14,321
Delivery ($) $ 858 $ 1,061 $ 907 $ 587 $ 267 $ 201 $ 169 $ 109 $ 149 $ 185 $ 216 $ 837
$ $ $ $ $ $ $ $ $ $ $ $
Charges Supply ($) 1,275 1,677 1,218 587 757 449 292 20 177 319 457 1,117
$ $ $ $ $ $ $ $ $ $ $ $ $
Total ($) 2,134 2,738 2,125 1,174 1,025 650 461 129 327 503 673 1,954 13,891.63
Delivery ($/Therm) $ 0.42 $ 0.37 $ 0.43 $ 0.50 $ 0.22 $ 0.29 $ 0.37 $ 3.31 $ 0.47 $ 0.33 $ 0.27 $ 0.42
Unit Costs Supply ($/Therm) $ 0.62 $ 0.58 $ 0.57 $ 0.50 $ 0.62 $ 0.65 $ 0.65 $ 0.60 $ 0.56 $ 0.57 $ 0.56 $ 0.56
Total ($/Therm) $ 1.04 $ 0.94 $ 1.00 $ 1.00 $ 0.84 $ 0.94 $ 1.02 $ 3.91 $ 1.04 $ 0.90 $ 0.83 $ 0.98 $ 0.970
Natural Gas Usage - Secaucus Recreation Center 3,500
Consumption (Therms)
3,000.00
Total ($)
3,000
2,500.00
2,500
1,500.00 1,500
1,000.00 1,000
500.00
500
0 Nov-13
Oct-13
Sep-13
Aug-13
Jul-13
Jun-13
May-13
Apr-13
Mar-13
Feb-13
Jan-13
0.00
Cost ($)
2,000
Dec-12
Consumption (Therms)
2,000.00
APPENDIX B Equipment Inventory
CHA Project # 27601 Secaucus Recreation Center
Description
QTY
Manufacturer Name
Model No.
Serial No.
DHW Heater DHW Storage Tank
1 1
Lochinvar A.O Smith
PFNO752PM N/A
E13012 N/A
RTU-1
1
York
DR120S15Q
N0H7126356
RTU-2
1
York
WR180S32Q
N0H7159580
Equipment Type / Capacity/Size /Efficiency Location Utility DHW Heater 750 MBH input, Boiler Room DHW Storage Tank about 200 gallon Boiler Room Packaged roof top unit with DX cooling and 10 ton cooling Roof gas fired heater Packaged roof top unit with DX cooling and 15 ton cooling Roof gas fired heater Air handling unit with under the ceiling of DX cooling and gas ~17 ton cooling AAON unit the gym fired heater Air handling unit with under the ceiling of DX cooling and gas ~17 ton cooling AAON unit the gym fired heater
AHU-1
1
Sterling
MU-40-K
N/A
AHU-2
1
Sterling
MU-40-K
N/A
RTU-Pool
1
Seresco
N/A
N/A
Pool Water 2nd Heater
1
Raypark
P*0514
1106325680
Gas fired pool water heater
511.5 MBH
Pool Water Circulation Pump Motor
1
Marathon Electric
213TTDW7305AC L
71363
Cirlculation Pump Motor
10HP
Packaged roof top unit ~42 ton Cooling and 384 with DX cooling only MBH Reheat
Roof Equipment Room next to Swimming Pool Equipment Room next to Swimming Pool
Areas/Equipment Served
Date Installed
Remaining Useful Life (years)
Other Info.
Whole Building Whole Building
2012 2012
13 14
2013 2013
1st floor open space
2008
15
2013
2nd floor open space
2008
15
2013
Current year
Years Old
gym
2008
15
2013
gym
2008
15
2013
Swimming Pool
2008
15
2013
Swimming Pool
2008
15
2013
Swimming Pool
2012
19
2013
ASHRAE life expectancy 1 1 5
14 15 20
5
20
5
20
5
20
5
20
20 5 1
20
APPENDIX C ECM Calculations
Secaucus Recreation Center - NJBPU CHA Project #27601
Rate of Discount (used for NPV)
Estimated
Secaucus Recreation Center ECM-1 ECM-2 ECM-3 ECM-4 ECM-5 ECM-L1 ECM-L2 ECM-L3
Demand Control Ventilation in Gymnasium Replace Motor with Premium Efficiency Motor Install VFD on Pool Water Circulation Pump Motor Install Pool Cover Install DHW Pipe Insulation Lighting Replacements / Upgrades Install Lighting Controls (Add Occupancy Sensors) Lighting Replacements with Controls (Occupany Sensors)
Total (Does Not Include ECM-L1 & ECM-L2) Total Measures with Payback => => =>
$ $ $ $ $
601 647 252 1,064 2,564
Annual Proposed Water Use Annual Proposed Water Heating Use Annual Proposed Ventilation Heating Use Annual Proposed Ventilation Cooling (Dehumidifying) Use TOTAL PROPOSED COST PER YEAR
118,823 396 154 5,491
gallons Therm Therm kWh
=> => => =>
$ $ $ $ $
356 384 150 631 1,522
TOTAL SAVINGS:
Annual Proposed Water Savings Annual Proposed Water Heating Savings Annual Proposed Ventilation Heating Savings Annual Proposed Ventilation Cooling (Dehumidifying) Savings TOTAL COST SAVINGS PER YEAR
81,348 271 106 3,759
gallons Therm Therm kWh
=> => => =>
$ $ $ $ $
244 263 103 432 1,042
% of existing 41% 41% 41% 41% 41%
MAX OA CFM Available 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000
DX Cooling OA Heating Required? Required? Yes No Yes No Yes No Yes No Yes No Yes No Yes No No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes
VENTILATION HEATING LOADS OA Heating MBH 0.0 0.0 0.0 0.0 0.0 0.0 0.0 315.9 264.0 276.7 266.9 278.7 288.2 286.6 299.8 311.9 326.2 342.3 358.4 367.8 386.1
OA Heat Recovery Effectiveness 0% 0% 0% 0% 0% 0% 0% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40%
Post-Heat Recov OA Heating MBH 0.0 0.0 0.0 0.0 0.0 0.0 0.0 189.5 158.4 166.0 160.1 167.2 172.9 172.0 179.9 187.1 195.7 205.4 215.0 220.7 231.6
DX COOLING LOADS Annual Natural Gas Usage (Therms) 0 0 0 0 0 0 0 48 36 33 29 26 23 19 16 13 9 5 4 0 0 260
DX Cooling Enabled? Yes Yes Yes No No No No No No No No No No No No No No No No No No
Cooling Disch. Air Temp 55.0 55.0 55.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cooling Disch. Grains / Ft3 4.66 4.66 4.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Cooling Disch. Enthalpy 22.84 22.84 22.84 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Dehumid. 1 AX / Hour Required AX Total Grains / Hour 321,820 18.4 321,820 18.4 321,820 18.4 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0
Dehumid. Required CFM 21,149 21,149 21,149 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Dehumid. Cooling MBH 877 877 877 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Dehumid. Cooling kWh 3,282 3,069 2,899 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9,251
Site Name - NYSERDA Flextech CHA Project # Building Name
Multipliers Material: Labor: Equipment:
ECM-4 Install Pool Cover
UNIT COSTS LABOR EQUIP.
Description
QTY
UNIT
Pool Cover Cost Estimate Blanket Cost - 3,453 square feet Reel System Cost - (4) reels total Reel system includes "automated stop" feature Installation & Freight Electrical Estimate
3,453 1 4
sf ls ea
$ 6,000.0 $ 6,000
$ $
1 1
ls ls
$ $
$ $
MAT.
6,000
1.10 1.35 1.10 SUBTOTAL COSTS MAT. LABOR EQUIP.
TOTAL COST REMARKS
-
$ $
-
$ 6,600 $ 26,400
$ $
-
$ $
-
$ $
6,600
FOR NEW JERSEY BOARD OF PUBLIC UTILITIES January 2014 Prepared by:
6 Campus Drive Parsippany, NJ 07054 (973) 538-2120 CHA PROJECT NO. 27601
_____________________________________________________________________________ New Jersey BPU – Secaucus Recreation Center – Energy Audit
TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY .................................................................................................... 1 2.0 BUILDING INFORMATION AND EXISTING CONDITIONS ................................................ 3 2.1
Secaucus Recreation Center ......................................................................................................... 3
3.0 UTILITIES ........................................................................................................................... 6 4.0 EPA PORTFOLIO MANAGER ............................................................................................ 8 5.0 ENERGY CONSERVATION MEASURES........................................................................... 9 5.1
Building Envelope.......................................................................................................................... 9
5.2
HVAC Systems ............................................................................................................................... 9
5.2.1
ECM-1 Install Demand Control Ventilation (DCV) for Gymnasium............................................... 9
5.2.2
ECM-2 Replace Motors with Premium Efficiency Motors .......................................................... 10
5.2.3
ECM-3 Install VFD on the Pool Water Circulation Pump ............................................................ 11
5.2.4
ECM-4 Install Pool Cover ............................................................................................................ 11
5.3
Control Systems .......................................................................................................................... 12
5.4
Domestic Hot Water System ....................................................................................................... 12
5.4.1
ECM-5 Insulate DHW Piping ....................................................................................................... 12
5.5
Kitchen Equipment...................................................................................................................... 13
5.6
Plumbing Systems ....................................................................................................................... 13
5.7
Lighting/Electrical Systems ......................................................................................................... 13
5.7.1
ECM-L1 Lighting Replacement / Upgrades ................................................................................. 13
5.7.2
ECM-L2 Install Lighting Controls (Occupancy Sensors) .............................................................. 13
5.7.3
ECM-L3 Lighting Replacements with Controls (Occupancy Sensors) ......................................... 14
6.0 PROJECT INCENTIVES ....................................................................................................15 6.1
Incentives Overview .................................................................................................................... 15
6.1.1
New Jersey Smart Start Program ................................................................................................ 15
6.1.2
Direct Install Program ................................................................................................................. 15
6.1.3
New Jersey Pay For Performance Program (P4P) ....................................................................... 16
6.1.4
Energy Savings Improvement Plan (ESIP) ................................................................................... 18
7.0 ALTERNATIVE ENERGY SCREENING EVALUATION .....................................................19 7.1
Solar ............................................................................................................................................ 19 _____________________________________________________________________________ New Jersey BPU – Secaucus Recreation Center - Energy Audit i
7.1.1
Photovoltaic Rooftop Solar Power Generation .......................................................................... 19
7.1.2
Solar Thermal Hot Water Generation......................................................................................... 20
7.2
Demand Response Curtailment .................................................................................................. 21
8.0 CONCLUSIONS & RECOMMENDATIONS........................................................................22 APPENDICES A Utility Usage Analysis i. List of Third Party Energy Suppliers B Equipment Inventory C ECM Calculations and Cost Estimates D New Jersey BPU Incentive Programs i. Smart Start ii. Direct Install iii. Pay For Performance Incentive Program (P4P) iv. Energy Savings Improvement Plan (ESIP) E Photovoltaic (PV) Solar Power Generation Analysis F EPA Portfolio Manager
_____________________________________________________________________________ New Jersey BPU – Secaucus Recreation Center - Energy Audit ii
REPORT DISCLAIMER This audit was conducted in accordance with the standards developed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) for a Level II audit. Cost and savings calculations for a given measure were estimated to within ±20%, and are based on data obtained from the owner, data obtained during site observations, professional experience, historical data, and s tandard engineering practice. Cost data does not include soft costs such as engineering fees, legal fees, project management fees, financing, etc. A thorough walkthrough of the building was performed, which included gathering nameplate information and operating parameters for all accessible equipment and lighting systems. Unless otherwise stated, model, efficiency, and c apacity information included in this report were collected directly from equipment nameplates and / or from documentation provided by the owner during the site visit. Typical operation and scheduling information was obtained from interviewing staff and spot measurements taken in the field.
_____________________________________________________________________________ New Jersey BPU – Secaucus Recreation Center - Energy Audit iii
1.0 EXECUTIVE SUMMARY This energy audit was performed by CHA in connection with the New Jersey Board of Public Utilities’ Local Government Energy Audit (LGEA) Program for Secaucus Recreation Center. The purpose of this report is to identify energy savings opportunities associated with major energy consumers and inefficient practices. This report details the results of the energy audit conducted for the buildings listed in Table 1: Table 1: Buildings Evaluated: Building Name
Address
Square Feet
Construction Date
Secaucus Recreation Center
1200 Koelle Blvd Secaucus, NJ 07094
26,000
2008
The potential annual energy cost savings and simple payback for the recommended ECMs is show below in Table 2. The overall savings, cost and payback for all ECM’s is shown in Table 3. The potential annual energy cost savings and simple payback for ECMs are shown in Section 5.0. Each individual measure’s annual savings are dependent on that measure alone, there are no i nteractive effects calculated. There are three options shown for Lighting ECM savings; only one option can be chosen. Incentives shown (if any) are based only on the SmartStart Incentive Program. Each measure recommended by CHA typically has a simple payback period of 15 years or less to be consistent with the requirements of the Energy Savings Improvement Plan (ESIP) which has a maximum payback period of 15 years. Occasionally, we will recommend an ECM that has a longer payback period, based on the need to replace that piece(s) of equipment, such as a boiler for example. Table 2: Total Recommended ECM Savings per Building Building Name Secaucus Recreation Center
Total Savings*
Payback
$19,093
3.6
*Recommended measures only
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ECM #
Table 3: Summary of Energy Conservation Measures
1
2
3 4
Energy Conservation Measure Demand Control Ventilation in Gymnasium Replace Motors with Premium Efficiency Motors Install VFD on Pool Water Circulation Pump Motor Install Pool Cover
Est. Costs ($)
Est. Savings ($/year)
Payback w/o Incentive
Potential Incentive ($)*
Payback w/ Incentive
Recommended (Y/N)
7,000
2,448
2.9
0
2.9
Y
1,423
204
7.0
0
7.0
Y
6,000
2,138
2.8
0
2.8
Y
53,955
1,042
51.8
0
51.8
N
5
Install DHW Pipe Insulation
51
11
4.8
0
4.8
Y
L1
Lighting Replacements / Upgrades
51,255
10,992
4.7
4,600
4.2
N
L2
Install Lighting Controls
9,693
5,641
1.7
1,270
1.5
N
L3
Lighting Replacements with Controls
60,948
14,293
4.3
5,870
3.9
Y
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2.0 BUILDING INFORMATION AND EXISTING CONDITIONS
2.1
Secaucus Recreation Center
Address: 1200 Koelle Blvd Secaucus NJ 07094 Gross Floor Area: 26,000 ft2 Number of Floors: Two Year Built: 2008 Description of Spaces: The building has gymnasium, swimming pools, multi purpose room, offices and locker rooms on the 1st floor and weight room, lunch roomand offices on the 2nd floor. Description of Occupancy: Secaucus Recreation Center has about 40 employees. Number of Computers: This building has about 15 computers. Building Usage: This facility typically opens from 5:30AM to 9:30PM on weekdays and from 8:00AM to 6:00PM on weekends. Therefor, the typical operational of this building is 100 hours per week.
Building Envelope
Construction Materials: Concrete masonry blocks Façade: Brick veneer Roof Type: Roof is comprised of structural-steel, insulation layer and a black waterproof membrane. The roof appears to be in good condition. Windows: Double pane windows with aluminum frames appear to be in good condition. Exterior Doors: Aluminum framed doors with single pane windows. Seals around the doors are in good condition.
New Jersey BPU – Secaucus Recreation Center - Energy Audit
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Heating Ventilation & Air Conditioning (HVAC) Systems
The gymnasium, weight room, multipurpose room, offices of this building are heated by individual packaged gas fired heating/electric cooling units. The gymnasium has two AHUs installed under the ceiling. These two units manufactured by Sterling HVAC Products has equipped with gas fired heaters. Each gas heater in the Sterling unit has a rated 400 MBH energy input/320 MBH energy output which results in a 80% nameplate efficiency. A York unit equipped with a gas fired funace is used to heat the rest areas on the 1st floor. The gas fired heater has a rated 180 MBH energy input and 150 MBH energy input which results in a nam eplate efficiency of 80%. Similarly, a Y ork unit equipped with a gas fired heater is used to heat the rest areas on the 2nd floor. The gas fired heater has a rated 400 M BH energy input and 320 MBH energy output which results in a na meplate efficiency of 80%. Secaucus Recreation Center is cooled by decentralized RTUs and AHUs. The two gymnasium Sterling AHUs have a A AON DX cooling unit each. The condensing unit is location on the roof and the cooling capacity of each AAON DX unit is about 17 ton. The Seresco unit provides cooling to the swimming pool and has a cooling capacity of about 42 ton. The York RTU serving the 1st floor has a cooling capacity of 10 ton.The York RTU serving the 2nd floor has a cooling capacity of 15 ton. The details of the each cooling unit are shown in the following table: AHU/RTU No.
Manufacturer
Cooling Capacity (ton)
Serving Area
CU-1
AAON
~17 ton cooling
Gymnasium
CU-2
AAON
~17 ton cooling
Gymnasium
RTU-Pool
Seresco
~42 ton cooling
Swimming Pool
RTU-1
York
10 ton cooling
1 Floor Open Space
RTU-2
York
15 ton cooling
2 Floor Open Space
st
nd
This building is ventilated by the RTUs and AHUs mentioned in the section above. The air flow quantities of the RTUs and AHUs were obtained from mechanical drawings. The supply CFM and outdoor air (O.A) CFM of the RTUs and AHUs are shown in the table below: AHU/RTU No.
Supply CFM
Min Outdoor Air CFM
Max Outdoor Air CFM
Serving Area
AHU-1
6,500
1,750
6,500
Gymnasium
AHU-2
6,500
1,750
6,500
Gymnasium
RTU-Pool
17,900
3,200
3,200
Swimming Pool
RTU-1
3,125
875
3,125
1 Floor Open Space
RTU-2
5,500
1,200
5,500
2 Floor Open Space
st
nd
Note: all table values are based on original design drawings
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The swimming pool water is heated by a Seresco NE-40 and a Raypak pool heater which has a rated energy input of 511.5 MBH. The Seresco dehumidification unit is used to maintain the natatorium room temperature at 82 oF and relative humidity level at 50%. This unit has a rated cooling capacity of 514.7 MBH and reheat capacity of 384 MBH. Exhaust Systems: There are 4 exhaust fans of various sizes used to exhaust air from locker rooms, pool equipment room, and utility rooms. These exhaust fans run 24/7.
Controls Systems
The HVAC units in this building are controlled by individual programmable thermostats except for the swimming pool unit. These havebeen programmed to set back the temperature during unoccupied hours. During the heating season, the temperature is reset from 70 oF to 55 oF after the building operational hours. During cooling season, the temperature is reset from 73 oF to 85 oF. This building is operational from 5:30AM to 9:30PM during weekdays and from 8AM to 6PM during weekends. The swimming pool unit is controlled by manually adjusted thermostat. The swimming pool room temperature and relative humidity are set at at 84 oF and relative humidity level at 50% all of the time.
Domestic Hot Water Systems
The building is served by one (1) gas fired Lochinvar PowerFin domestic hot water heater. This heater has a rated 750 MBH energy input and has an e fficiency of 82%. This unit was installed in 2012. The 120 oF DHW is stored in an approximately 200 gallon storage tank. The DHW is used for all the sinks throughout the building and the showers in the locker room.
Kitchen Equipment
This building does not have a kitchen.
Plumbing Systems
Some of the bathrooms plumbing fixtures are low flow fixtures. The showerheads appear to be low flow shower fixtures.
Lighting / Electrical Systems
This building has a combination of 32watt T-8 fluorescent lighting, 42watt compact fluorescent lights (CFL), and s ome 400watt metal halides. The majority of the lighting fixtures in the building are 32watt T8 fluorescent fixtures. Metal halides are used in the gymnasium and pool room. The majority of the lights are controlled by wall switches with the exception of the two restrooms next to the front desk which are controlled by occupancy sensors. The exterior lights are metal halides and controlled by timers.
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3.0 UTILITIES Utilities include electricity and nat ural gas. E lectricity is delivered by Public Service Electric and Gas Company (PSE&G) and is currently supplied by Direct Energy LLC. Natural gas is delivered and supplied by PSE&G. The electricity and natural gas usage and cost in 2013 y ear for the building are as follows: Table 2: Actual Cost & Site Utility Usage
Building Name Unit Secaucus Recreation Center
Annual Usage
kWh
Annual Cost $
804,522
92,200.62
Electric Blended Consumption Peak Demand Rate Rate Demand Rate $/kWh $/kWh kW $/kW 0.115
0.10
182.40
5.96
Blended Rate: Average rate charged determined by the annual cost / annual usage Consumption Rate: Actual rate charged for electricity usage in kWh Demand Rate: Rate charged for actual electrical demand in kW
Building Name Unit
Secaucus Recreation Center
Natural Gas Annual Usage therms
Annual Cost $
Rate $/therm
13,891.63
0.97
14,321
See Appendix A for a detailed utility analysis.
Total Annual Energy Usage (kBtu) NG 34%
Electricity 66%
Total Annual Energy Cost ($) NG 13%
Electricity 87%
Figure 1: Annual Energy Usage
Figure 2: Annual Energy Cost
New Jersey BPU – Secaucus Recreation Center - Energy Audit
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Under New Jersey’s energy deregulation law, the supply portion of the electric (or natural gas) bill is separated from the delivery portion. The supply portion is open to competition, and customers can shop around for the best price for their energy suppliers. The electric and natural gas distribution utilities will still deliver the gas/electric supplies through their wires and pi pes – and respond to emergencies, should they arise – regardless of where those supplies are purchased. Purchasing the energy supplies from a company other than your electric or gas utility is purely an economic decision; it has no impact on the reliability or safety of the service. A dditional information on selecting a third party energy supplier is available here: http://www.state.nj.us/bpu/commercial/shopping.html. See Appendix A for a list of third-party energy suppliers licensed by the Board of Public Utilities to sell within the building’s service area.
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4.0
EPA PORTFOLIO MANAGER
The EPA Portfolio Manager benchmarking tool was used to assess the building’s energy performance. Portfolio Manager provides a site and source Energy Use Intensity (EUI), as well as an Energy Star performance rating for qualifying building types. The EUIs are provided in kBtu/ft2/year, and the performance rating represents how energy efficient a building is on a scale of 1 to 100, with 100 being the most efficient. In order for a building to receive and Energy Star label, the energy benchmark rating must be at least 75. A s energy use decreases from implementation of the proposed measures, the Energy Star rating will increase. The site EUI is the amount of heat and electricity consumed by a building as reflected in utility bills. Site energy may be delivered to a facility in the form of primary energy, which is raw fuel burned to create heat or electricity, such as natural gas or oil; or as secondary energy, which is the product created from a raw fuel such as electricity or district steam. To provide an equitable comparison for different buildings with varying proportions of primary and secondary energy consumption, Portfolio Manager uses the convention of source EUIs. T he source energy also accounts for losses incurred in production, storage, transmission, and delivery of energy to the site, which provide an e quivalent measure for various types of buildings with differing energy sources. The results of the Portfolio Manager benchmarking tool are contained in the table below. Building
Site EUI kBtu/ft /yr
Source EUI Btu/ft /yr
Secaucus Recreation Center
Energy Star Rating (1-100)
160.7
389.3
N/A
2
2
The building has an higher site EUI compared with the median EUI of similar buildings in EPA database. However, most of the buildings in the gym/health club category do not have an indoor pool. Therefore, the comparison may not reflect the energy usage standing of this building correctly. By implementing the measures discussed in this report such as DCV, VFD and so on, it is expected that the EUI can be reduced. The Portfolio Manager account can be accessed by entering the username and password shown below at the login screen of the Portfolio Manager website (https://www.energystar.gov/istar/pmpam/). A full EPA Energy Star Portfolio Manager Report is located in Appendix G. The user name and password for the building’s EPA Portfolio Manager Account has been provided to Amanda Nesheiwat, Environmental Coordinator for Secaucus Township.
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5.0
ENERGY CONSERVATION MEASURES
Energy conservation measures (ECM’s) are energy savings recommendations that typically require a financial investment. Energy savings can be in the form of: • electrical demand (KW=kilowatts), • electrical usage (KWh=Kilowatt-hour), • natural gas (Therms=100,000 BTU), • propane gas (Gallons=91,650 BTU), • #2Fuel Oil (Gallons =139,000 Btu), and • water (KGAL=1,000 gallons). These recommendations are influenced by the time period that it takes to “break even” referred to as “Simple Payback”. Simple payback is calculated by dividing the cost of implementing the ECM by the energy cost savings (in dollars) of that ECM. Another financial indicator of the performance of a particular ECM is the Return on Investment or ROI. ROI is used to evaluate the efficiency of an investment or to compare the efficiency of a number of different investments. To calculate ROI, the benefit (return) of an investment is divided by the cost of the investment; the result is expressed as a percentage or a ratio. Two other financial analyses included in this report are Internal Rate of Return (IRR) and Net Present Value (NPV). Internal Rate of Return is the discount rate at which the present value of a pr oject costs equals the present value of the project savings. Net Present Value is the difference between present value of an investment’s future net cash flows and t he initial investment. If the NPV equals “0”, the project would equate to investing the same amount of dollars at the desired rate. NPV is sometimes referred to as Net Present Worth. These values are provided in the summary in Appendix C.
5.1
Building Envelope
This building is constructed in 2008. All the double pane w indows and C MU walls are still in good condition. Therefore, there are no E CMs associated with the Building Envelope.
5.2
HVAC Systems
The following are ECMs associated with the HVAC Systems 5.2.1
ECM-1 Install Demand Control Ventilation (DCV) for Gymnasium
The gymnasium has (2) dedicated air handling units (AHU-1 and AHU-2) to provide heating, cooling and ventilation for this area. AHU-1 and AHU-2 are identical . Each has an estimated minimum of 1,750 CFM outdoor air which is 27% of outdoor air. It is believed that these two AHUs are designed to provide ventilation based on m aximum occupancy (about 233 people). Maximum occupancy occurs infrequently and by reducing the amount of ventilation, energy savings will occur. Installation of carbon dioxide (CO2) sensors will allow for a reduction of outside air during periods of low occupancy. The quantity of ventilation air will be based on maintaining an acceptable New Jersey BPU – Secaucus Recreation Center - Energy Audit
9|Page
CO2 level in the space as an indicator of indoor air quality. A limit of 1000 PPM of CO2 is recommended in ASHRAE Standard 62-2010, Ventilation for Acceptable Indoor Air Quality. Sensors will be installed to measure the building air CO2 concentration, and the control sequence of operation changed. During unoccupied periods, the outside air dampers should be closed. Bin weather data was utilized to obtain the annual operating hours required to maintain the current setpoint of 70°F. The BTU/Hr rating is calculated from the outdoor air (OA) conditions and air flow CFM (Cubic Feet per Minute). It is estimated that installing CO2 controls will reduce the energy usage by 25%. It should be noted that the percentage of the outdoor air in this calculation is based on the mechanical drawings. A more indepth energy study is recommended to calculate the energy savings based on the measured CFM of outdoor air and the fans running hours. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary Cost
Savings Electricity
Secaucus Recreation Center
Total
Annual Utility Savings
ROI
Potential
Payback
Payback
Incentive*
(without
(with
NG
$
kW
kWh
therms
$
7,000
0.0
14,683
783
2,448
7.7
Incentive)
Incentive)
$
Years
Years
0
2.9
2.9
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life:
15
years
Lifetime Savings:
220,238
kWh
5.2.2
11,745
$ 36,720
therms
ECM-2 Replace Motors with Premium Efficiency Motors
The pool water pump motors observed while onsite are regular efficiency motors. It is suggested to replace them with premium efficiency motors. The total savings of this measure comes from motor efficiency improvement. Savings from replacing the motors with premium efficiency motors were calculated first by using the efficiency of each motor to get the actual electric demand drawn by the motor and then multiplying them with load percentage and run hours. Implementation of this measure will require installation of premium efficiency motors. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary
Annual Utility Savings
Cost
Savings Electricity
$
Total
kW
kWh
ROI
Potential
Payback
Payback
Incentive*
(without
(with
Incentive)
Incentive)
Years
Years
NG therms
$
New Jersey BPU – Secaucus Recreation Center - Energy Audit
$
10 | P a g e
Secaucus Recreation Center
1,423
0.0
1,653
0
204
2.6
0
7.0
7.0
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life:
15
years
Lifetime Savings:
24,796
kWh
5.2.3
0
$ 3,054
therms
ECM-3 Install VFD on the Pool Water Circulation Pump Motor
The pool water pump motors observed while onsite were running 24/7 at a constant speed. After reviewing the drawings of the pool circulation system, it was found that the pump has a rated circulation rate of 375 gpm and the pool volume is 111,000 gallon. Therefore, the circulation pump has the capacity to turn over all the pool water in about 4.9 hours. The New Jersey Sanitary Code for Public Recreational Bathing has a requirement of circulation pump turnover rate which is 8 hour s. Hence, the existing circulation pump provides more than the required circulation rate than the required circulation rate. It is suggested that a variable frequency drive (VFD) be installed on the pump motor and the pump speed be reduced when the building is not operational. The total savings of this measure comes from motor speed and energy usage reduction during unoccupied hours. Implementation of this measure will require installation of variable frequency drive on the circulation pump motor. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary Cost
Savings Electricity
Secaucus Recreation Center
Total
Annual Utility Savings
ROI
Potential
Payback
Payback
Incentive*
(without
(with
Incentive)
Incentive)
$
Years
Years
0
2.8
2.8
NG
$
kW
kWh
therms
$
6,000
0
18,590
0
2,138
4.3
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life: Lifetime Savings:
5.2.4
15
years
278,855
kWh
0
therms
$32,068
ECM-4 Install Pool Cover
Swimming pools lose energy in a v ariety of ways and ev aporation is one of largest sources of energy loss. Indoor pools not only lose energy from evaporation, but also require room ventilation to control indoor humidity caused by the large amount of evaporation. Pool covers could help reduce the amount of evaporation when the pools are not in use and reduce the energy usage.
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The evaporation reduction would result in water savings, pool water heating energy reductions and ventilation energy usage savings. Implementation of this measure will require installation of pool cover, reel system and control system. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary Cost
Savings Electricity
Secaucus Recreation Center
Total
Annual Utility Savings
Potential ROI
Incentive*
kW
kWh
therms
$
53,955
0
3,759
377
1,042
(0.7)
Payback
(without
(with
Incentive)
Incentive)
$
Years
Years
0
>15
>15
NG
$
Payback
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life: Lifetime Savings:
5.3
15
years
56,390
kWh
5,651
$15,627
therms
Control Systems
There are no ECMs associated with the Controls Systems.
5.4
Domestic Hot Water System
The following are ECMs associated with the Domestic Hot Water Systems. 5.4.1
ECM-5 Insulate DHW Piping
Some domestic hot water (DHW) piping returning to the water heater in the mechanical room are currently not insulated. The heater supplies 120 oF hot water to the storage tank and the end users. The surface temperature of these pipes is about 120 oF. Adding insulation to the domestic hot water pipes will reduce energy usage and improve efficiency of the steam boiler. The energy saving calculation for this measure quantifies the heat loss from DHW pipe surfaces. It is estimated that the uninsulated domestic hot water pipe surface temperature is around 120 °F. The difference between the heat loss before the insulation and after the insulation is the energy saving for this measure. The implementation cost and savings related to this ECM are presented in Appendix C and summarized below: Building Name
Budgetary
Annual Utility Savings
Cost
Total Savings
Electricity
Potential ROI
NG
New Jersey BPU – Secaucus Recreation Center - Energy Audit
Incentive*
Payback
Payback
(without
(with
Incentive)
Incentive)
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Secaucus Recreation Center
$
kW
kWh
therms
$
51
0
0
11
11
4.2
$
Years
Years
0
4.8
4.8
* Does not qualify for Incentive from the New Jersey SmartStart Program. See section 6.0 for other incentive opportunities. Expected Life:
25
years
Lifetime Savings:
0
kWh
5.5
271
therms
$263
Kitchen Equipment
There is no Kitchen in this building. Therefore, no ECMs associated with kitchen equipment.
5.6
Plumbing Systems
There are no ECMs associated with the Plumbing Systems.
5.7
Lighting/Electrical Systems
The following are ECMs associated with the Lighting/Electrical Systems. 5.7.1
ECM-L1 Lighting Replacement / Upgrades
It is proposed to replace the gymnasium and natatorrium metal halide fixtures with LED light fixtures which have a longer life and consume much less energy. Energy savings for this measure were calculated by comparing the existing and proposed fixture wattages and using estimated times of operation. These calculations are based upon 1 to 1 replacements with the fixtures. They do not take into account lumen output and square footage. A more comprehensive study may be performed to determine correct lighting levels. Supporting calculations, including assumptions for lighting hours and annual energy usage for each fixture, are provided in Appendix C. The implementation cost and savings related to this ECM are presented in Appendix C and summarized as follows:
Budgetary Building Name
Annual Utility Savings
Cost
Savings Electricity
Secaucus Recreation Center
Total
Potential ROI
Incentive*
kW
kWh
therms
$
51,255
17
85,085
0
10,992
1.1
(without
(with Incentive)
$
Years
Years
4,600
4.7
4.2
* Incentive shown is per the New Jersey Smart Start Program. See section 6.0 for other incentive opportunities.
5.7.2
ECM-L2 Install Lighting Controls (Occupancy Sensors)
New Jersey BPU – Secaucus Recreation Center - Energy Audit
Payback
Incentive)
NG
$
Payback
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Currently, there are occupancy sensors located in the restrooms next to the front lobby. However, the rest of the lights in the building are controlled by manual switches. It was observed that the lights in the locker rooms, storage rooms, and bathrooms were left on even if the rooms were not occupied. Review of the comprehensive lighting survey determined that lighting in these areas could benefit from installation of occupancy sensors to turn off lights when the areas are unoccupied. This measure recommends installing occupancy sensors for the current lighting system. Using a p rocess similar to that utilized in Section 5.7.1, the energy savings for this measure was calculated by applying the known fixture wattages in the space to the estimated existing and proposed times of operation for each fixture. The implementation cost and savings related to this ECM are presented in Appendix C Building Name
Budgetary
Annual Utility Savings
Cost
Electricity Secaucus Recreation Center
Total Savings
ROI
Potential
Payback
Payback
Incentive*
(without
(with
NG
$
kW
kWh
therms
$
9,693
0
49,048
0
5,641
4.8
Incentive)
Incentive)
$
Years
Years
1,270
1.7
1.5
* Incentive shown is per the New Jersey Smart Start Program. See section 6.0 for other incentive opportunities.
5.7.3
ECM-L3 Lighting Replacements with Controls (Occupancy Sensors)
This measure is a combination of ECM-L1 and ECM-L2; recommending replace/upgrade the current lighting fixtures to more efficient ones and installing occupancy sensors on the new lights. Interactive effects of the higher efficiency lights and occupancy sensors lead the energy and cost savings for this measure to not be cumulative or equivalent to the sum of replacing the lighting fixtures alone and installing occupancy sensors without the lighting upgrade. The implementation cost and savings related to this ECM are presented in Appendix C Building Name
Budgetary
Annual Utility Savings
Cost
Electricity Secaucus Recreation Center
Total Savings
Potential ROI
Incentive*
kW
kWh
therms
$
60,948
17
113,787
0
14,293
1.3
(without
(with Incentive)
$
Years
Years
5,870
4.3
3.9
* Incentive shown is per the New Jersey Smart Start Program. See section 6.0 for other incentive opportunities.
New Jersey BPU – Secaucus Recreation Center - Energy Audit
Payback
Incentive)
NG
$
Payback
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6.0 PROJECT INCENTIVES
6.1
Incentives Overview
The following sections give detailed information on available incentive programs including New Jersey Smart Start, Direct Install, New Jersey Pay for Performance (P4P) and Energy Savings Improvement Plan (ESIP). If the owner wishes to and is eligible to participate in the Energy Savings Improvement Plan (ESIP) program and/or the Pay for Performance Incentive Program (P4P), it cannot participate in either the Smart Start or Direct Install Programs. Refer to Appendix D for more information on t he Smart Start program. 6.1.1
New Jersey Smart Start Program
For this energy audit, The New Jersey Smart Start Incentives are used in the energy savings calculations, where applicable. This program is intended for medium and large energy users and provides incentives for: • Electric Chillers • Gas Chillers • Gas Heating • Unitary HVAC • Ground Source Heat Pumps • Variable frequency Drives/Motors • Refrigeration • Prescriptive and Performance Lighting and Lighting Controls The equipment is procured using a typical bid-build method, installed and paid for and then the incentives are reimbursed to the owner Refer to Appendix D for more information on the Smart Start program. 6.1.2
Direct Install Program
The Direct Install Program applies to smaller facilities that have a peak electrical demand of 200 kW or less in any of the previous 12 months. Buildings must be located in New Jersey and s erved by one of the state’s public, regulated electric utility companies. Direct Install is funded through New Jersey’s Clean Energy Program and is designed to provide capital for building energy upgrade projects to fast track implementation. The program will pay up t o 70% of the costs for lighting, HVAC, motors, refrigeration, and other equipment upgrades with higher efficiency alternatives. If a building is eligible for this funding, the Direct Install Program can reduce the implementation cost of energy conservation projects. The Direct Install program has specific HVAC equipment and lighting requirements and are generally applicable only to smaller package HVAC units, small boilers and lighting retrofits. New Jersey BPU – Secaucus Recreation Center - Energy Audit
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The program pays a maximum amount of $75,000 per building, and up t o $250,000 per customer per year. Installations must be completed by an app roved Direct Install participating contractor, a list of which can be found on the New Jersey Clean Energy Website. C ontractors will coordinate with the applicant to arrange installation of recommended measures identified in a pr evious energy assessment, such as this energy audit. The incentive is reimbursed to Secaucus Recreation Center upon successful replacement and payment of the equipment. The following table summarizes the eligibility of the building for direct install. I f the building does not qualify, it is because the electrical demand is greater than the maximum peak electrical demand of 200 kW for the last 12 month period. Building Name
Eligible for Direct Install (Y/N)
Eligible Categories
Secaucus Recreation Center
N
-
Refer to Appendix D for more information on this program. 6.1.3
New Jersey Pay For Performance Program (P4P)
The building will be eligible for incentives from the New Jersey Office of Clean Energy. The most significant incentives are available from the New Jersey Pay for Performance (P4P) Program. The P4P program is designed for qualified energy conservation projects applied to facilities whose demand in any of the preceding 12 months exceeds 100 kW. However, this average minimum has been waived for buildings owned by local governments or municipalities and non -profit organizations. Facilities that meet this criterion must also achieve a minimum performance target of 15% energy reduction by using the EPA Portfolio Manager benchmarking tool before and after implementation of the measure(s). If the participant is a municipal electric company customer, and a customer of a regulated gas New Jersey Utility, only gas measures will be eligible under the Program. Available incentives are as follows: Incentive #1: Energy Reduction Plan – This incentive is designed to offset the cost of services associated with the development of the Energy Reduction Plan (ERP). • Incentive Amount: $0.10/SF • Minimum Incentive: $5,000 • Maximum Incentive: $50,000 or 50% of Facility Annual Energy Cost The standard incentive pays $0.10 per square foot, up to a maximum of $50,000, not to exceed 50% of facility annual energy cost, paid after approval of application. For building audits funded by the New Jersey Board of Public Utilities, which receive an initial 75% incentive toward performance of the energy audit, facilities are only eligible for an additional $0.05 per square foot, up to a maximum of $25,000, rather than the standard incentive noted above. Incentive #2: Installation of Recommended Measures – This incentive is based on projected energy savings as determined in Incentive #1 (Minimum 15% savings must be achieved), and is paid upon successful installation of recommended measures. Electric New Jersey BPU – Secaucus Recreation Center - Energy Audit
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• • • Gas • • •
Base incentive based on 15% savings: $0.09/ per projected kWh saved. For each % over 15% add: $0.005 per projected kWh saved. Maximum incentive: $0.11/ kWh per projected kWh saved. Base incentive based on 15% savings: $0.90/ per projected Therm saved. For each % over 15% add: $0.05 per projected Therm saved. Maximum incentive: $1.25 per projected Therm saved.
Incentive cap: 25% of total project cost Incentive #3: Post-Construction Benchmarking Report – This incentive is paid after acceptance of a report proving energy savings over one year utilizing the Environmental Protection Agency (EPA) Portfolio Manager benchmarking tool. Electric • Base incentive based on 15% savings: $0.09/ per projected kWh saved. • For each % over 15% add: $0.005 per projected kWh saved. • Maximum incentive: $0.11/ kWh per projected kWh saved. Gas • • •
Base incentive based on 15% savings: $0.90/ per projected Therm saved. For each % over 15% add: $0.05 per projected Therm saved. Maximum incentive: $1.25 per projected Therm saved.
Combining Incentives #2 and #3 will provide a total of $0.18/ kWh and $1.8/therm not to exceed 50% of total project cost. Additional Incentives for #2 and #3 a re increased by $0.005/kWh and $0.05/therm for each percentage increase above the 15% minimum target to 20%, calculated with the EPA Portfolio Manager benchmarking tool, not to exceed 50% of total project cost. Total P4P incentives for this project are summarized below: Incentives $ Electric Gas Secaucus Recreation Center
Incentive #1 Incentive #2 Incentive #3 Total Total (Project)
$0 $25,718 $25,718 $51,436 $51,436
$0 $953 $953 $1,905 $1,905
Total $5,000 $26,670 $26,670 $58,341 $58,341
For the purpose of demonstrating the eligibility of the ECM’s to meet the minimum savings requirement of 15% for the Pay for Performance Program, the recommended ECM’s which have less than 15 y ears payback have been i ncluded in the incentive calculations. Refer to Appendix D for more information on this program.
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6.1.4
Energy Savings Improvement Plan (ESIP)
The Energy Savings Improvement Program (ESIP) allows government agencies to make energy related improvements to their facilities and pay for the costs using the value of energy savings that result from the improvements. Under the recently enacted Chapter 4 of the Laws of 2009 (the law), the ESIP provides all government agencies in New Jersey with a flexible tool to improve and reduce energy usage with minimal expenditure of new financial resources. ESIP allows local units to use “energy savings obligations” to pay for the capital costs of energy improvements to their facilities. This can be done o ver a m aximum term of 15 years. Energy savings obligations are not considered “new general obligation debt” of a local unit and do not count against debt limits or require voter approval. They may be issued as refunding bonds or leases. Savings generated from the installation of energy conservation measures pay the principal of and interest on the bonds; for that reason, the debt service created by the ESOs is not paid from the debt service fund, but is paid from the general fund. For local governments interested in pursuing an ESIP, the first step is to perform an energy audit. Pursuing a Local Government Energy Audit through New Jersey's Clean Energy Program is a v aluable first step to the ESIP approach. The “Local Finance Notice” outlines how local governments can develop and i mplement an ESIP for their facilities. The ESIP can be prepared internally if the entity has qualified staff. If not, the ESIP must be implemented by an independent contractor and not by the energy savings company producing the Energy Reduction Plan. The ESIP approach may not be appr opriate for all energy conservation and ener gy efficiency improvements. Local units should carefully consider all alternatives to develop an approach that best meets their needs. Refer to Appendix D for more information on this program.
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7.0 ALTE ERNATIVE ENERGY E SC CREENING EVALUATION
7.1 7 7.1.1 7
Solar Phottovoltaic Ro ooftop Solar Power Ge eneration
The building werre evaluated d for the po otential to in nstall rooftop p photovolta aic (PV) sola ar panels for powe er generation n. Presentt technologyy incorporate es the use of solar ce ell array ys that produce direct current c (DC C) electricity . This DC current is converted tto altern nating curren nt (AC) with h the use of an electrica al device kno own as an inverter. Th he amou unt of available roof area determine es how large e of a solar a array can be e installed o on any given g roof. The T table be elow summa arizes the ap pproximate rroof area ava ailable on th he buildiing and the associated a solar s array size s that can be installed d. Building Name N Secaucus Re ecreation Center
Available A Roof Area Ft2 5,009
System Size kW 20.0
er generatio on model w was utilized to calculatte PV powe er The PVWATTS solar powe m is prov vided in App pendix E. generation; this model Installation of (PV V) arrays in the state New N Jersey w he owner to participate iin will allow th the New N Jersey solar s renewa able energy certificates program (SREC). This is a program m that has h been se et up to allow entities with w large am mounts of en nvironmenta ally unfriendly emiss sions to purrchase crediits from zero o emission (PV) solar-p producers. A An alternativve comp pliance pena alty (ACP) is s paid for by the high e emission pro oducers and d is set eacch year on a declin ning scale of o 3% per year. y One SREC cred dit is equiva alent to 100 00 kilow watt hours off PV electric cal productio on; these cre edits can be e traded forr period of 15 years s from the date d of installation. Pay yments that will be rece eived by the PV produce er will change from year to yearr dependentt upon supplly and dema and. There iss no definitivve way to t calculate an exact pric ce that will be b received b by the PV producer for S SREC creditts over the next 15 5 years. Ren newable Ene ergy Consu ltants estimates an ave erage of $82 2/ SREC C for 2012 and a this num mber was utilized in the ccash flow forr this report. The system cos sts for PV installations were de rived from recent sola ar contracto or budgetary pricing g in the state of New Jersey J and include the total cost o of the system m installlation (PV panels, inve erters, wiring, ballast, ccontrols). Th he cost of installation is curre ently about $4.00 $ per wa att or $4,000 per kW of in nstalled system, for a tyypical 100 kW W syste em. There arre other considerations that have no ot been inclu uded in this pricing, succh as the condition of the roof and a need forr structural rreinforcemen nt. Photovo oltaic system ms can be b ground mounted m if th he roof is not suitable, however, th his installatio on requires a substtantial amou unt of open property (no ot wooded) a and undergrround wiring g, which add ds more e cost. PV panels have e an approx ximate 20 yyear life spa an; howeverr, the inverte er devic ce that conve erts DC elec ctricity to AC C has a life sspan of 10 tto 12 years and will mosst likely y need to be replaced du uring the use eful life of the e PV system m.
J BPU – Secaucus Recreation R Ce enter - Energyy Audit New Jersey
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The implementation cost and savings related to this ECM are presented in Appendix E and summarized as follows:
Budgetary
Annual Utility Savings
Building Name Cost
Electricity
Secaucus Recreation Center
New Jersey Renewable
Savings
New Jersey Renewable Energy Incentive*
Total
SREC**
Payback (without incentive)
Payback (with incentives)
NG
Recommend ed
Photovoltaic (PV) Rooftop Solar Power Generation
$
kW
kWh
therms
$
$
$
Years
Years
Y/N
$80,000
20
24,512
0
$2,990
$0
$3,922
26.8
11.6
Y
** Estimated Solar Renewable Energy Certificate Program (SREC) at $131/1000 kWh
Note: The installation of PV Solar arrays are only recommended for owners whose individual paybacks are less than 15 years. 7.1.2
Solar Thermal Hot Water Generation
Active solar thermal systems use solar collectors to gather the sun’s energy to heat water, another fluid, or air. An absorber in the collector converts the sun’s energy into heat. The heat is then transferred by circulating water, antifreeze, or sometimes air to another location for immediate use or storage for later utilization. Applications for active solar thermal energy include providing hot water, heating swimming pools, space heating, and preheating air in residential and commercial buildings. A standard solar hot water system is typically composed of solar collectors, heat storage vessel, piping, circulators, and controls. Systems are typically integrated to work alongside a conventional heating system that provides heat when solar resources are not sufficient. The solar collectors are usually placed on the roof of the building, oriented south, and tilted around the site’s latitude, to maximize the amount of radiation collected on a yearly basis. Several options exist for using active solar thermal systems for space heating. The most common method involves using glazed collectors to heat a liquid held in a storage tank (similar to an active solar hot water system). The most practical system would transfer the heat from the panels to thermal storage tanks and transfer solar produced thermal energy to use for domestic hot water production. DHW and poll water heating are presently produced by gas-fired water heaters and, therefore, this measure would offer natural gas utility savings. This building has a slightly pitched roof space facing south and enough ground space for the collecter. therefore this measure is recommended. The implementation cost and savings related to this ECM are presented in Appendix E and summarized as follows:
New Jersey BPU – Secaucus Recreation Center - Energy Audit
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Budgetary Building Name Cost
Electricity
Secaucus Recreation Center
Savings
New Jersey Renewable Energy Incentive*
Payback (without incentive)
Payback (with incentives)
Total
Annual Utility Savings
NG
Recommend ed
Solar Hot Water Pool Heating
$
kW
kWh
therms
$
$
Years
Years
Y/N
$59,900
0
0
7,430
$7,208
$0
8.3
8.3
Y
Note: It is suggested that Secaucus Recreation Center consider the solar hot water pool heating first due to the roof space constraints. The solar hot water pool heating system will take less space and have better payback. The remaining roof space could be used for solar PV if Secaucus Recreation Center would consider solar PV too.
7.2
Demand Response Curtailment
Presently, electricity is delivered by PSE&G, which receives the electricity from regional power grid RFC (Reliability First Corporation) East. PJM Interconnection is the regional transmission organization (RTO) that coordinates the movement of wholesale electricity in all or parts of 13 states and the District of Columbia including the State of New Jersey. Utility Curtailment is an agreement with the utility provider’s RTO and an approved Curtailment Service Provider (CSP) to shed electrical load by either turning major equipment off or energizing all or part of a facility utilizing an emergency generator; therefore, reducing the electrical demand on the utility grid. This program is to benefit the utility company during high demand periods and utility provider offers incentives to the CSP to participate in this program. Enrolling in the program will require program participants to drop electrical load or turn on emergency generators during high electrical demand conditions or during emergencies. Part of the program also will require that program participants reduce their required load or run emergency generators with notice to test the system. A pre-approved CSP will require a minimum of 100 kW of load reduction to participate in any curtailment program. From December 2012 through November 2013 the following table describes the electricity load profile for each building. Building Name Secaucus Recreation Center
Peak Demand kW
Min Demand kW
Avg Demand kW
Onsite Generation Y/N
182.4
126.4
151.3
N
Eligible? Y/N Y
Implementation for this measure will require a load shedding sequence to be established by using a demand control system. If the building has onsite electricity generation available, some load can be supplemented by running that device. This building does not have a onsite generator, therefore, the demand shedding is not recommended.
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8.0 CONCLUSIONS & RECOMMENDATIONS
ECM #
The LGEA energy audit conducted by CHA for the Secaucus Recreation Building identified potential annual savings of $35,725 may be realized for the recommended ECMs, with a summary of the costs, savings, and paybacks as follows:
1
2
3 4
Energy Conservation Measure Demand Control Ventilation in Gymnasium Replace Motors with Premium Efficiency Motors Install VFD on Pool Water Circulation Pump Motor Install Pool Cover
Est. Costs ($)
Est. Savings ($/year)
Payback w/o Incentive
Potential Incentive ($)*
Payback w/ Incentive
Recommended (Y/N)
7,000
2,448
2.9
0
2.9
Y
1,423
204
7.0
0
7.0
Y
6,000
2,138
2.8
0
2.8
Y
53,955
1,042
51.8
0
51.8
N
5
Install DHW Pipe Insulation
51
11
4.8
0
4.8
Y
L1
Lighting Replacements / Upgrades
51,255
10,992
4.7
4,600
4.2
N
L2
Install Lighting Controls
9,693
5,641
1.7
1,270
1.5
N
L3
Lighting Replacements with Controls
60,948
14,293
4.3
5,870
3.9
Y
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APPENDIX A Utility Usage Analysis and rd 3 Party Energy Suppliers
Secaucus Recreation Center 1200 Koelle Blvd Secaucus NJ 07094 Utility Bills: Account Numbers Account Number 42 007 971 00 42 007 971 00
School Building Secaucus Recreation Center Secaucus Recreation Center
Location 1200 Koelle Blvd Secaucus NJ 07094 1200 Koelle Blvd Secaucus NJ 07094
Type Notes Electricity Natural Gas
Secaucus Recreation Center 1200 Koelle Blvd Secaucus NJ 07094
For Service at: Account No.: Meter No.: Electric Service
Secaucus Recreation Center 42 007 971 00 778019321
Consumption (kWh) 61,360 65,600 86,000 87,200 81,840 64,320 62,480 69,520 56,322 47,200 61,680 61,000 804,522
Month December-12 January-13 February-13 March-13 April-13 May-13 June-13 July-13 August-13 September-13 October-13 November-13 Total (last 12-months)
Demand (kW) 138.4 140.0 180.8 182.4 175.2 147.2 145.6 126.4 130.9 145.6 138.4 138.0 182.40
Delivery Supplier -
Provider Charges Delivery Supplier ($) ($) $ 2,664.10 $ 4,100.69 $ 2,840.84 $ 4,384.05 $ 3,453.87 $ 5,747.38 $ 3,476.63 $ 5,827.58 $ 3,300.16 $ 5,469.37 $ 2,707.55 $ 4,298.51 $ 3,991.25 $ 4,175.54 $ 3,985.95 $ 4,646.02 $ 3,502.04 $ 3,764.00 $ 3,374.62 $ 3,154.38 $ 2,687.57 $ 4,122.07 $ 2,449.84 $ 4,076.63 $38,434.42 $53,766.21
Notes 1 2 1.) Number of kWh of electric energy used per month 2.) 3.) 4.) 5.) 6.) 7.) 8.) 9.) 10.)
PSE&G Direct Energy LLC
Number of kW of power measured Electric charges from Delivery provider Electric charges from Supply provider Total charges (Delivery + Supplier) Charges based on the number of kWh of electric energy used Charges based on the number of kW of power measured Total Charges ($) / Consumption (kWh) Consumption Charges ($) / Consumption (kWh) Demand Charges ($) / Demand (kW)
3
4
Total ($) $6,764.79 $7,224.89 $9,201.25 $9,304.21 $8,769.53 $7,006.06 $8,166.79 $8,631.97 $7,266.04 $6,529.00 $6,809.64 $6,526.47 $92,200.62 5
Usage (kWh) vs. Demand (kW) Charges Consumption Demand ($) ($) $ 6,282.24 $ 482.55 $ 6,729.68 $ 495.21 $ 8,560.43 $ 640.82 $ 8,657.71 $ 646.50 $ 8,148.55 $ 620.98 $ 6,484.32 $ 521.74 $ 6,423.01 $ 1,743.78 $ 7,118.14 $ 1,513.83 $ 5,825.42 $ 1,440.62 $ 4,939.71 $ 1,589.29 $ 6,327.09 $ 482.55 $ 6,043.92 $ 482.55 $81,540.20 $10,660.42 6
7
Blended Rate ($/kWh) $ 0.11 $ 0.11 $ 0.11 $ 0.11 $ 0.11 $ 0.11 $ 0.13 $ 0.12 $ 0.13 $ 0.14 $ 0.11 $ 0.11 $ 0.115
Unit Costs Consumption Rate ($/kWh) $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.101
8
9
$ $ $ $ $ $ $ $ $ $ $ $ $
Demand ($/kW) 3.49 3.54 3.54 3.54 3.54 3.54 11.98 11.98 11.01 10.92 3.49 3.50 5.959 10
are estimated values due to missing bills
Utility Data - Secaucus Recreation Center Electric
Electric Usage - Secaucus Recreation Center (kW)
40,000
80
30,000
60
20,000
40
10,000
20
Jun-13
0
Nov-13
100
Oct-13
50,000
Sep-13
120
Aug-13
60,000
Jul-13
140
May-13
70,000
Apr-13
160
Mar-13
80,000
Feb-13
180
Jan-13
90,000
Dec-12
200
Usage (kWh)
100,000
Demand (kW)
(kWh)
0
Month
Utility Data - Secaucus Recreation Center Electric Graph
Secaucus Recreation Center 1200 Koelle Blvd Secaucus NJ 07094 For Service at: Account No.: Meter No.: Natural Gas Service Delivery Supplier -
Month December-12 January-13 February-13 March-13 April-13 May-13 June-13 July-13 August-13 September-13 October-13 November-13 Total (12 - Month)
Secaucus Recreation Center 42 007 971 00 260017
PSEG PSEG
Consumption (Therms) 2,052 2,898 2,119 1,179 1,213 693 451 33 315 559 810 1,998 14,321
Delivery ($) $ 858 $ 1,061 $ 907 $ 587 $ 267 $ 201 $ 169 $ 109 $ 149 $ 185 $ 216 $ 837
$ $ $ $ $ $ $ $ $ $ $ $
Charges Supply ($) 1,275 1,677 1,218 587 757 449 292 20 177 319 457 1,117
$ $ $ $ $ $ $ $ $ $ $ $ $
Total ($) 2,134 2,738 2,125 1,174 1,025 650 461 129 327 503 673 1,954 13,891.63
Delivery ($/Therm) $ 0.42 $ 0.37 $ 0.43 $ 0.50 $ 0.22 $ 0.29 $ 0.37 $ 3.31 $ 0.47 $ 0.33 $ 0.27 $ 0.42
Unit Costs Supply ($/Therm) $ 0.62 $ 0.58 $ 0.57 $ 0.50 $ 0.62 $ 0.65 $ 0.65 $ 0.60 $ 0.56 $ 0.57 $ 0.56 $ 0.56
Total ($/Therm) $ 1.04 $ 0.94 $ 1.00 $ 1.00 $ 0.84 $ 0.94 $ 1.02 $ 3.91 $ 1.04 $ 0.90 $ 0.83 $ 0.98 $ 0.970
Natural Gas Usage - Secaucus Recreation Center 3,500
Consumption (Therms)
3,000.00
Total ($)
3,000
2,500.00
2,500
1,500.00 1,500
1,000.00 1,000
500.00
500
0 Nov-13
Oct-13
Sep-13
Aug-13
Jul-13
Jun-13
May-13
Apr-13
Mar-13
Feb-13
Jan-13
0.00
Cost ($)
2,000
Dec-12
Consumption (Therms)
2,000.00
APPENDIX B Equipment Inventory
CHA Project # 27601 Secaucus Recreation Center
Description
QTY
Manufacturer Name
Model No.
Serial No.
DHW Heater DHW Storage Tank
1 1
Lochinvar A.O Smith
PFNO752PM N/A
E13012 N/A
RTU-1
1
York
DR120S15Q
N0H7126356
RTU-2
1
York
WR180S32Q
N0H7159580
Equipment Type / Capacity/Size /Efficiency Location Utility DHW Heater 750 MBH input, Boiler Room DHW Storage Tank about 200 gallon Boiler Room Packaged roof top unit with DX cooling and 10 ton cooling Roof gas fired heater Packaged roof top unit with DX cooling and 15 ton cooling Roof gas fired heater Air handling unit with under the ceiling of DX cooling and gas ~17 ton cooling AAON unit the gym fired heater Air handling unit with under the ceiling of DX cooling and gas ~17 ton cooling AAON unit the gym fired heater
AHU-1
1
Sterling
MU-40-K
N/A
AHU-2
1
Sterling
MU-40-K
N/A
RTU-Pool
1
Seresco
N/A
N/A
Pool Water 2nd Heater
1
Raypark
P*0514
1106325680
Gas fired pool water heater
511.5 MBH
Pool Water Circulation Pump Motor
1
Marathon Electric
213TTDW7305AC L
71363
Cirlculation Pump Motor
10HP
Packaged roof top unit ~42 ton Cooling and 384 with DX cooling only MBH Reheat
Roof Equipment Room next to Swimming Pool Equipment Room next to Swimming Pool
Areas/Equipment Served
Date Installed
Remaining Useful Life (years)
Other Info.
Whole Building Whole Building
2012 2012
13 14
2013 2013
1st floor open space
2008
15
2013
2nd floor open space
2008
15
2013
Current year
Years Old
gym
2008
15
2013
gym
2008
15
2013
Swimming Pool
2008
15
2013
Swimming Pool
2008
15
2013
Swimming Pool
2012
19
2013
ASHRAE life expectancy 1 1 5
14 15 20
5
20
5
20
5
20
5
20
20 5 1
20
APPENDIX C ECM Calculations
Secaucus Recreation Center - NJBPU CHA Project #27601
Rate of Discount (used for NPV)
Estimated
Secaucus Recreation Center ECM-1 ECM-2 ECM-3 ECM-4 ECM-5 ECM-L1 ECM-L2 ECM-L3
Demand Control Ventilation in Gymnasium Replace Motor with Premium Efficiency Motor Install VFD on Pool Water Circulation Pump Motor Install Pool Cover Install DHW Pipe Insulation Lighting Replacements / Upgrades Install Lighting Controls (Add Occupancy Sensors) Lighting Replacements with Controls (Occupany Sensors)
Total (Does Not Include ECM-L1 & ECM-L2) Total Measures with Payback => => =>
$ $ $ $ $
601 647 252 1,064 2,564
Annual Proposed Water Use Annual Proposed Water Heating Use Annual Proposed Ventilation Heating Use Annual Proposed Ventilation Cooling (Dehumidifying) Use TOTAL PROPOSED COST PER YEAR
118,823 396 154 5,491
gallons Therm Therm kWh
=> => => =>
$ $ $ $ $
356 384 150 631 1,522
TOTAL SAVINGS:
Annual Proposed Water Savings Annual Proposed Water Heating Savings Annual Proposed Ventilation Heating Savings Annual Proposed Ventilation Cooling (Dehumidifying) Savings TOTAL COST SAVINGS PER YEAR
81,348 271 106 3,759
gallons Therm Therm kWh
=> => => =>
$ $ $ $ $
244 263 103 432 1,042
% of existing 41% 41% 41% 41% 41%
MAX OA CFM Available 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000 22,000
DX Cooling OA Heating Required? Required? Yes No Yes No Yes No Yes No Yes No Yes No Yes No No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes
VENTILATION HEATING LOADS OA Heating MBH 0.0 0.0 0.0 0.0 0.0 0.0 0.0 315.9 264.0 276.7 266.9 278.7 288.2 286.6 299.8 311.9 326.2 342.3 358.4 367.8 386.1
OA Heat Recovery Effectiveness 0% 0% 0% 0% 0% 0% 0% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40% 40%
Post-Heat Recov OA Heating MBH 0.0 0.0 0.0 0.0 0.0 0.0 0.0 189.5 158.4 166.0 160.1 167.2 172.9 172.0 179.9 187.1 195.7 205.4 215.0 220.7 231.6
DX COOLING LOADS Annual Natural Gas Usage (Therms) 0 0 0 0 0 0 0 48 36 33 29 26 23 19 16 13 9 5 4 0 0 260
DX Cooling Enabled? Yes Yes Yes No No No No No No No No No No No No No No No No No No
Cooling Disch. Air Temp 55.0 55.0 55.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Cooling Disch. Grains / Ft3 4.66 4.66 4.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Cooling Disch. Enthalpy 22.84 22.84 22.84 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Dehumid. 1 AX / Hour Required AX Total Grains / Hour 321,820 18.4 321,820 18.4 321,820 18.4 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0
Dehumid. Required CFM 21,149 21,149 21,149 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Dehumid. Cooling MBH 877 877 877 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Dehumid. Cooling kWh 3,282 3,069 2,899 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9,251
Site Name - NYSERDA Flextech CHA Project # Building Name
Multipliers Material: Labor: Equipment:
ECM-4 Install Pool Cover
UNIT COSTS LABOR EQUIP.
Description
QTY
UNIT
Pool Cover Cost Estimate Blanket Cost - 3,453 square feet Reel System Cost - (4) reels total Reel system includes "automated stop" feature Installation & Freight Electrical Estimate
3,453 1 4
sf ls ea
$ 6,000.0 $ 6,000
$ $
1 1
ls ls
$ $
$ $
MAT.
6,000
1.10 1.35 1.10 SUBTOTAL COSTS MAT. LABOR EQUIP.
TOTAL COST REMARKS
-
$ $
-
$ 6,600 $ 26,400
$ $
-
$ $
-
$ $
6,600
