COUNTY OF ESSEX   RICHARD J. CODEY ARENA  560 Northfield Avenue, West Orange, NJ  07052  LOCAL GOVERNMENT ENERGY AUDIT PROGRAM FOR  NEW JERSEY BOARD OF PUBLIC UTILITIES January 2015 Prepared by: 6 Campus Drive Parsippany, NJ 07054 (973) 538-2120 CHA PROJECT NO. 29142 _____________________________________________________________________________ New Jersey BPU LGEA – County of Essex TABLE OF CONTENTS   EXECUTIVE SUMMARY ....................................................................................................... 1    BUILDING INFORMATION AND EXISTING CONDITIONS .................................................. 4    UTILITIES .............................................................................................................................. 8    BENCHMARKING ............................................................................................................... 11    ENERGY CONSERVATION MEASURES ........................................................................... 12  5.1  ECM‐1 Replace Door Sweeps and Seals ...................................................................................... 13  5.2  ECM‐2 Install Premium Efficiency Motors and Variable Speed Drives on Pumps ...................... 13  5.3  ECM‐3 Re‐Program Temperature Controls with Night Setback .................................................. 14  5.4  ECM‐4 Install Kitchen Hood Controller ....................................................................................... 14  5.5  ECM‐5 Install Walk‐in Cooler / Freezer Controls ........................................................................ 15  5.6  ECM‐6 Install Vending Misers ..................................................................................................... 15  5.7  ECM‐7 Install Low Flow Plumbing Fixtures ................................................................................. 16  5.7.1  ECM‐L1 Lighting Replacement / Upgrades ................................................................................. 17  5.7.2  ECM‐L2 Install Lighting Controls (Occupancy Sensors) .............................................................. 17  5.7.3  ECM‐L3 Lighting Replacements with Controls (Occupancy Sensors) ......................................... 18  5.8  Additional O&M Opportunities ................................................................................................... 18    PROJECT INCENTIVES ..................................................................................................... 20  6.1  Incentives Overview .................................................................................................................... 20  6.1.1  New Jersey Smart Start Program ................................................................................................ 20  6.1.2  Direct Install Program ................................................................................................................. 20  6.1.3  New Jersey Pay For Performance Program (P4P) ....................................................................... 21  6.1.4  Energy Savings Improvement Plan ............................................................................................. 22  6.1.5  Renewable Energy Incentive Program ........................................................................................ 23    ALTERNATIVE ENERGY SCREENING EVALUATION ...................................................... 24  7.1  Solar ............................................................................................................................................ 24  7.1.1  Photovoltaic Rooftop Solar Power Generation .......................................................................... 24  7.1.1  Solar Thermal Hot Water Generation ......................................................................................... 25  7.2  Wind Powered Turbines.............................................................................................................. 26  7.3  Combined Heat and Power Plant ................................................................................................ 27  _____________________________________________________________________________ New Jersey BPU LGEA – County of Essex i 7.4  Demand Response Curtailment .................................................................................................. 27    CONCLUSIONS & RECOMMENDATIONS ......................................................................... 29  APPENDICES A Utility Usage Analysis and 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 Photos G EPA Benchmarking Report _____________________________________________________________________________ New Jersey BPU LGEA – County of Essex 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 standard 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 capacity 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 LGEA – County of Essex iii List of Common Energy Audit Abbreviations  A/C – Air Conditioning  AHS – Air Handling Unit  BMS – Building Management System  Btu – British thermal unit  CDW – Condenser Water  CFM – Cubic feet per minute  CHW – Chilled Water  DCV – Demand Control Ventilation  DDC – Direct Digital Control  DHW – Domestic Hot Water  DX – Direct Expansion  EER – Energy Efficiency Ratio  EF – Exhaust Fan  EUI – Energy Use Intensity  Gal – Gallon  GPD – Gallons per day  GPF – Gallons Per Flush  GPH – Gallons per hour  GPM – Gallons per minute  GPS – Gallons per second  HHW – Heating Hot Water  HID – High Intensity Discharge  HP – Horsepower  HRU – Heat Recovery Unit  HVAC – Heating, Ventilation, Air Conditioning  HX – Heat Exchanger  kbtu/mbtu – One thousand (1,000) Btu  kW – Kilowatt (1,000 watts)  kWh – Kilowatt-hours  LED – Light Emitting Diode  mbh – Thousand Btu per hour  mmbtu – One million (1,000,000) Btu  OCC – Occupancy Sensor  PSI – Pounds per square inch  RTU – Rooftop Unit  SBC – System Benefits Charge  SF – Square foot  UH – Unit Heater  V – Volts  VAV – Variable Air Volume  VSD – Variable Speed Drive  W – Watt _____________________________________________________________________________ New Jersey BPU LGEA – County of Essex iv EXECUTIVE SUMMARY This report summarizes the energy audit performed by CHA for the Richard J. Codey Arena in connection with the New Jersey Board of Public Utilities (NJBPU) Local Government Energy Audit (LGEA) Program. The purpose of this report is to identify energy savings opportunities associated with major energy consumers and inefficient practices. Low-cost and no-cost are also identified during the study. This report details the results of the energy audit conducted for the building listed below: Square Construction Building Name Address Feet Date Richard J. Codey 560 Northfield Ave., 104,695 1958 Arena West Orange, NJ 07052 The potential total annual energy and cost savings for the recommended energy conservation measures (ECM) identified in the survey are shown below: Electric NG Total Payback Building Name Savings Savings Savings (years) (kWh) (therms) ($) Richard J. Codey Arena 296,203 58,697 17,885 6.2 The annual savings for each individual measure are dependent on that measure alone, there are no interactive effects calculated. There are three options shown for Lighting ECM savings; only one option can be chosen. Incentives shown (if any) are based only on the SmartStart Incentive Program. Other NJBPU or local utility incentives may also be available/ applicable and are discussed in Section 6.0. Each measure recommended by CHA typically has a stand-alone simple payback period of 15 years or less. However, if the owner choses to pursue an Energy Savings Improvement Plan (ESIP), high payback measures could be bundled with lower payback measures which ultimately can result in a payback which is favorable for an ESIP project to proceed. Occasionally, we will recommend an ECM that has a longer payback period, based on the need to replace that piece(s) of equipment due to its age, such as a boiler for example. New Jersey BPU LGEA 1 | P a g e Essex County – Richard J. Codey Arena The following table provides a detailed summary of each ECM for the building surveyed, including costs, savings, SmartStart incentives and payback. Summary of Energy Conservation Measures d e d # Est. Est. Payback Potential Payback n M Energy Conservation Costs Savings w/o Incentive w/ me C Measure m E ($) ($/year) Incentive ($)* Incentive o c e R 1 Door Sweeps and Seals 1,613 234 6.9 0 6.9 Y Install Prem. Effic. Motors & 2 47,212 7,740 6.1 4,050 5.6 Y VFDs on Hot Water Pumps Re-program Temperature 3 21,309 24,071 0.9 0 0.9 Y Controls with Night Setback Install Kitchen Hood 4 30,787 3,552 8.7 0 8.7 Y Controller Install Walk-In Cooler / 5 41,250 690 59.8 100 59.6 Y Freezer Controls 6 Vending Misers 1,120 1,326 0.8 0 0.8 Y Low Flow Plumbing 7 117,780 10,296 11.4 0 11.4 Y Fixtures L1** Lighting Replacements 99,709 9,947 10.0 13,415 8.7 N L2** Lighting Controls 2,052 1,532 1.3 320 1.1 N Lighting Replacements with L3 101,761 10,788 9.4 13,735 8.2 Y Controls Total** 362,833 58,697 6.2 17,885 5.9 Total (Recommended) 362,833 58,697 6.2 17,885 5.9 * Incentive shown is per the New Jersey SmartStart Program. ** These ECMs are not included in the Total, as they are alternate measures not recommended. The following alternative energy measures are also recommended for further study:  Photovoltaic (PV) Rooftop Solar Power Generation – 120 kW System New Jersey BPU LGEA 2 | Page Essex County – Richard J. Codey Arena If Essex County implements the recommended ECMs, energy savings would be as follows: Post Existing Recommended Percent Conditions ECMs Savings Costs ($) 660,735 601,551 9% Electricity (kWh) 3,764,565 3,468,362 8% Natural Gas (therms) 121,158 115,159 5% Site EUI (kbtu/SF/Yr) 238.4 223.0 4,000,000 3,500,000 3,000,000 2,500,000 Costs ($) 2,000,000 Electricity (kWh) 1,500,000 Natural Gas (therms) 1,000,000 500,000 0 Existing Conditions Post Recommended ECMs New Jersey BPU LGEA 3 | Page Essex County – Richard J. Codey Arena BUILDING INFORMATION AND EXISTING CONDITIONS The following is a summary of building information related to HVAC, plumbing, building envelope, lighting, kitchen equipment and domestic hot water systems as observed during CHAs site visit. See appendix B for detailed information on mechanical equipment, including capacities, model numbers and age. See appendix F for some representative photos of some of the existing conditions observed while onsite. Building Name: Richard J. Codey Arena Address: 560 Northfield Ave., West Orange, NJ 07052 Gross Floor Area: 104,695 Square Feet Number of Floors: 2 Year Built: 1958, addition in 2005 Description of Spaces: Two ice rinks, administration offices, ticketing & information booths, locker rooms, restrooms, concessions facilities and rental spaces. Description of Occupancy: There are approximately 20 staff members. Number of Computers: The building has approximately 20 desktop and laptop computers. Building Usage: Hours of operation for the Arena are 6:00 AM – 11:00 PM every day of the week. Building Envelope Construction Materials: The building is constructed of structural steel framing with block and brick exterior. Interior walls are primarily masonry with some sheetrock. A front addition was added in 2005. Roof: The building has several roofs. The 1958 skating rink has a steel supported barrel roof with a silver coated EPDM surface. Flat areas are covered with either rolled asphalt sheeting or black rubber membrane. All roof surfaces appear to be in fair condition, and no roof associated ECMs are considered. Windows The building has aluminum framed double pane windows. Seals are intact, and most of the windows are in good condition. No window replacement ECMs are included. New Jersey BPU LGEA 4 | P a g e Essex County – Richard J. Codey Arena Exterior Doors: Exterior doors are either aluminum with single pane safety glass, or solid metal doors. The condition of sweeps and seals is variable—on a few of the utility doors the sweeps and/or seals are in poor condition. An ECM is evaluated for sweeps and seals on exterior doors. Heating Ventilation & Air Conditioning (HVAC) Systems Heating: The primary heat source for the Richard J. Codey Arena are two (2) Aerco Benchmark 2,000 MBH gas fired hot water boilers. The hot water is circulated to finned tube radiation and unit heaters via two (2) base mounted 7.5 HP B&G pumps equipped with 88.5% efficient Baldor industrial motors, that function in a lead/lag manner. The boilers are sequenced and controlled by a proprietary AERCO Boiler Management System. The 2005 front concession/ticketing/rental areas are heated and cooled by eight (8) packaged DX/gas Aaon RTUs. Additional arena heating is provided by gas fired York rooftop units. Electric finned radiation is also found in some areas. An ECM is evaluated for replacing the pump motors with more efficient motors and adding VFDs. Cooling/Dehumidification: Arena #1 is dehumidified by two (2) Munters dessicant dehumidifiers model# DDS-3030 each with 65 ton capacity. Additional cooling to Arena #1 is provided by an Aaon DX split system with 75 tons of capacity. Arena #2 is dehumidified by two (2) 2005 Munters dehumidifiers model# AM20G that are located on the roof. Supplemental cooling is provided to Arena #2 by three (3) 25 ton 2014 Trane rooftop units and one York 25 ton RTU, all of which also provide gas-fired heat. The 2005 front addition is cooled by eight (8) gas fired DX Aaon rooftop units. Process: The arena #1 ice sheet is maintained by a 2010 Toromont Cimco 250 ton reciprocating compressor water-cooled chiller and secondary calcium chloride brine solution loop. The two (2) model C6 Cimco compressors are driven by 125 HP 94.1% efficient 90kW motors. The secondary brine loop pumps are Cimco, 40 HP 1500 gpm and 90.4% efficient. These pumps operate in a lead/lag manner. Condenser pumps are 7.5 HP and 89.5% efficient. The dual condenser fan Cimco water tower is located on the roof above the mechanical room. An ECM is evaluated for replacing the secondary brine pump motors with efficient inverter ready motors and adding VFDs. The arena #2 ice sheet is maintained by a 2014 Toromont Cimco R507A 3000 lb rotary screw compressor chiller with a secondary calcium chloride brine solution loop. The secondary Brine loop pumps are US electric, 20 HP premium efficiency motors. The condenser pumps are 7.5 Hp, 89.5 % eff. The Evapco cooling tower located on the roof above mechanical room #2. An ECM is evaluated for replacing the secondary brine pump motors with efficient inverter ready motors and adding VFDs. Ventilation: The Munters dehumidifiers serving both arenas provide outdoor ventilation air as a function of removing moisture from the space. Trane as well as Aaon rooftop units are equipped with fans that draw in outside ventilation air, that then gets mixed with return air and delivered into the building. In general, building ventilation is adequate and no associated ECMs are included. Exhaust: The facility utilizes exhaust fans of various sizes located on the roof to exhaust air from the kitchen, restrooms and storage areas, and provide general pressure relief. Controls Systems The building has a SBT DDC BMS controls system, which is serviced by SBT. Adjustments are made internally by building staff personnel. However the temperature setpoint in offices, New Jersey BPU LGEA 5 | Page Essex County – Richard J. Codey Arena