Local Government Energy Program Energy Audit …...Township of Rockaway SWA, Inc. – Local...

Township of Rockaway SWA, Inc. – Local Government Energy Audit Final Report /44

Steven Winter Associates, Inc. 50 Washington Street Telephone (203) 857-0200 Architects and Engineers Norwalk, CT 06854 Facsimile (203) 852-0741

www.swinter.com E-mail: [email protected]

December 23, 2009)

Local Government Energy Program Energy Audit Final Report

For

Rockaway Township Rockaway, NJ 07866

Project Number: LGEA09




TABLE OF CONTENTS

INTRODUCTION .........................................................................................................................3 1. HISTORIC ENERGY CONSUMPTION.................................................................................7 1.1. ENERGY USAGE AND COST ANALYSIS .....................................................................................7 1.2. UTILITY RATE .......................................................................................................................8 1.3. ENERGY BENCHMARKING .....................................................................................................8 2. FACILITY AND SYSTEMS DESCRIPTION .......................................................................10 2.1. BUILDING CHARACTERISTICS .............................................................................................10 2.2. BUILDING OCCUPANCY PROFILES ........................................................................................10 2.3. BUILDING ENVELOPE ..........................................................................................................10 2.3.1. EXTERIOR WALLS.............................................................................................................10 2.3.2. ROOF ...............................................................................................................................10 2.3.3. BASE ................................................................................................................................10 2.3.4. WINDOWS ........................................................................................................................11 2.3.5. EXTERIOR DOORS.............................................................................................................12 2.3.6. BUILDING AIR TIGHTNESS.................................................................................................13 2.4. HVAC SYSTEMS ..................................................................................................................13 2.4.1. HEATING ..........................................................................................................................13 2.4.2. COOLING..........................................................................................................................14 MUNICIPAL BUILDING ..................................................................................................................14 2.4.3. VENTILATION ...................................................................................................................15 2.4.4. DOMESTIC HOT WATER ...................................................................................................16 2.5. ELECTRICAL SYSTEMS ........................................................................................................17 2.5.1. LIGHTING.........................................................................................................................17 2.5.2. APPLIANCES AND PROCESSING .........................................................................................18 2.5.3. ELEVATORS ......................................................................................................................18 2.5.4. OTHER ELECTRICAL SYSTEMS ..........................................................................................18 3. EQUIPMENT LIST ..............................................................................................................19 4. ENERGY CONSERVATION MEASURES...........................................................................21 CATEGORY III RECOMMENDATIONS : ENERGY CONSERVATION MEASURES.................................22 4.1. COMBINED HEAT AND POWER.............................................................................................30 4.2. GEOTHERMAL.....................................................................................................................30 4.3. WIND ..................................................................................................................................30 4.4. SOLAR THERMAL COLLECTORS ..........................................................................................30 5. ENERGY PURCHASING AND PROCUREMENT STRATEGIES ......................................31 5.1. LOAD PROFILES ..................................................................................................................31 5.2. TARIFF ANALYSIS ................................................................................................................32 5.3. ENERGY PROCUREMENT STRATEGIES .................................................................................32 6. METHOD OF ANALYSIS ....................................................................................................33 6.1. ASSUMPTIONS AND TOOLS ...................................................................................................33 6.2. DISCLAIMER .......................................................................................................................33 APPENDIX A: LIGHTING STUDY ....................................................................................................34 APPENDIX B: EQUEST MODEL .....................................................................................................43




INTRODUCTION

On May 6

th and 7

th and on May 12

th and 13

th Steven Winter Associates, Inc. (SWA) performed energy

audits and conditions assessments of the Rockaway Township Municipal building and the Rockaway Township Free Public Library located in Rockaway, NJ in Morris County, as part of the New Jersey Clean Energy Local Government Energy Audit Program. Current conditions and energy-related information were collected in order to analyze and facilitate the implementation of energy conservation measures for the building. The following building assessment report summarizes the findings and recommendations of the building audit. The recommended energy and water conservation measures are summarized in the Proposed Scope of Work shown in the table on the following page. Estimated utility and associated cost savings are provided for each measure that will result in a reduction of heating, cooling, water, and/or electric usage. Pricing information for the measures is provided whenever possible. Energy data collected in the field was imported into eQuest energy conservation software to generate a baseline energy model of the building. SWA simulated the installation of energy improvement measures against the modeled baseline to create a projected model. Energy saving calculations and projected economics were utilized to support our conclusions. There are two separate buildings that were evaluated for this energy audit; The Rockaway Township Municipal building and the Rockaway Township Public Library. The Municipal building was built in 1980 and houses the Rockaway Township Police department, as well as the Municipal offices. The building consists of 32,000 square feet of conditioned space. There are approximately 100 employees and the Municipal offices operate approximately 40 hours a week, while the Police Department operates a 24 hour a day schedule year-round. The Library consists of 23,000 square feet of conditioned space, has 17 full time employees and operates between 68 and 71 hours a week depending on the season. The goal of this energy audit is to provide sufficient information to make decisions regarding the implementation of the most appropriate and most cost effective energy conservation measures for the building.




EXECUTIVE SUMMARY

The document contains the Energy Audit Final Report for two buildings. It covers the Municipal building, which includes the Rockaway Police Department, located at 65 Mount Hope Road, Rockaway, NJ 07866. It also includes the Rockaway Township Free Public Library building, located at 61 Mt. Hope Road, Rockaway, NJ 07866. Both buildings are currently heated by the same heating plant, which is located in the Municipal building, and are served by the same electric meter. The Municipal building is a two level building that houses the Rockaway Township professional offices and public service functions, as well as the Rockaway Police Department Headquarters which occupies the basement level. The Rockaway Township Free Public Library is a two level building that houses the Library, with the lower level used for the children’s library and for staff offices. Based on the inspections performed by Steven Winter Associates (SWA) staff between May 6

th and

May 16th

, 2009, and the results of a comprehensive energy analysis, this report describes the site’s current conditions and recommendations for improvements. Suggestions for measures related to energy and conservation and improved comfort are provided in the scope of work. Energy and resource savings are estimated for each measure that results in a reduction of heating, cooling and electric usage. In the most recent years for which we have data, the Rockaway Township Municipal building consumed 1,047,680 kilowatt hours (kWh) of electricity at a cost of $154,221.53 and 25,319 therms of natural gas costing $33,691.22 in 2007 and approximately 1,021,440 kWh of electricity costing $162,644.91 and approximately 22,544.97 therms of gas costing $33,215.18 in 2008. SWA benchmarked the Municipal building using the U.S. Environmental Protection Agency’s (EPA) Energy Star Portfolio Manager Energy benchmarking system. Since the building contains the Police Station, it is a mixed-use facility. For this reason, a national average cannot be determined to serve as the baseline in for use in generated a Portfolio Manager benchmark score for the building. Portfolio Manager is capable of generating a site energy use intensity number using 2008 as a baseline year. The site energy use intensity for the Municipal building is 104 kBtu/sq.ft/year. After energy efficiency improvements are made, future utility bills can be added to the Portfolio Manager and the site energy use intensity of a different time period can be compared to the year 2008 baseline to show changes in energy consumption over time. SWA recommends a total of 6 Energy Conservation Measures (ECMs) for the Municipal building and 6 ECMs for the Library. The total investment cost for the Municipal building would be $ 295,820 with a first year estimated savings of $57,387 and a simple payback period of 5.2 years. The investment cost for the Public Library would be $232,185 with estimated first year savings of $43,257 and a simple payback of 5.4 years . There are various incentives that Rockaway Township could apply for that could also help lower the cost of installing the ECMs. SWA recommends that the Township apply for the NJ SmartStart program through the New Jersey Office of Clean Energy. This program can provide technical assistance for the building in the implementation phase of energy conservation projects. Currently, the NJ Office of Clean Energy offers a Renewable Energy Incentive program that would pay $7,500 for the installation of each 7.5kW PV system. There is also an incentive that issues a Solar Renewable Energy Certificate for every 1000 kWh (1MWh) of electricity generated, which can be sold or traded for the current market rate of electricity.




The following table summarizes the proposed Energy Conservation Measures (ECM) are their economical relevance.

SCOPE OF WORK – SUMMARY TABLE1

Rockaway Township Municipal Building 65 Mount Hope Rd.

est mat'l,

$

est labor,

$

estimated

$ source usage unit

demand

Kw

O&M

savings

$

energy

savings$

total

savings $

1High Efficiency

Lighting$18,005 $33,439 $51,444 Contractor 53,584 kWh 12.4 $2,020 $8,520 $10,540 4.9 12 $104,914 8.7% 17.5%

2

New

Condensing

Boiler

$22,225 $41,275 $63,500 RS Means 4,450 Therms NA $2,360 $6,542 $8,902 7.1 12 $88,606 3.3% 9.1%

3

Two New

RTU Cooling

System

$34,633 $64,318 $98,950 RS Means 125,500 kWh 25.5 $2,360 $19,955 $22,315 4.4 12 $222,119 10.4% 20.0%

4

Demand

Controlled

Ventilation

$7,762 $14,414 $22,176 Online35,574 /

1758

kWh /

Therms7.2 $0 $8,241 $8,241 2.7 12 $82,026 22.5% 36.3%

5

New

Condensing

DHW Boiler

$2,538 $4,713 $7,250 Estimate 700 Therms NA $590 $1,029 $1,619 4.5 12 $16,116 10.2% 19.8%

67.5 kW Solar

Photovoltaic$18,375 $34,125 $52,500 Estimate 8,000 kWh 7.5 $0 $5,772 $5,772 9.1 15 $68,906 2.1% 7.0%

Total $103,537 $192,283 $295,820 $7,330 $50,057 $57,387 5.2 $582,685

life cycle

savings $

Rockaway Township Municipal Building Energy Conservation Measures

Avg

ROI

%

IRR %ECM

#

ECM

description

Installed Cost 1st year energy savings

SPP LoM

1 See ECM calculation details in section 4 of the report, Energy Conservation Measures.




Rockaway Township Free Public Library 61 Mount Hope Rd.

est mat'l,

$

est labor

$

estimated

$ source usage unit demand

O&M

savings

$

energy

savings $

total

savings

$

1High Efficiency


2

New On Site

Condensing

Boiler


3

New RTU

Cooling System

40 tons

$19,180 $35,620 $54,800 RS Means 65,000 kWh 13.2 $2,360 $10,335 $12,695 4.3 12 $126,366 10.9% 20.8%

4

Demand

Controlled

Ventilation

$6,685 $12,415 $19,100 Online24,941 /

1,207

KWh /

Therms5.1 $0 $5,740 $5,740 3.3 12 $57,135 16.6% 28.6%

5New Gas Fired

Water Heater$2,870 $5,330 $8,200 Estimate 12,453 kWh 2.5 $590 $1,980 $2,570 3.2 12 $25,582 17.7% 30.0%

67.5 KW Solar


Total $81,265 $150,920 $232,185 $7,330 $35,927 $43,257 5.4 $442,028

IRR life cycle

savings

Avg

ROI

Rockaway Township Public Library Energy Conservation Measures

ECM

#

ECM

description


SPP LoM




1. HISTORIC ENERGY CONSUMPTION

1.1. Energy usage and cost analysis

SWA analyzed utility bills for 2007 and 2008 that were provided by Rockaway Township. Electricity – Both buildings are on one electric meter and service. The building buys electricity from Jersey Central Power and Light at an average aggregated rate of $0.159/kWh based on 2008 electric bills. The buildings used approximately 1,021,440 kWh at a cost of $162,644.91 in 2008. Based on 2008 data, the building also has an average monthly demand of 205 kW and

peak demand of 244.4 kW. Natural Gas – The two buildings also use one natural gas service and one gas meter for incoming natural gas from New Jersey Natural Gas. In 2008, the average aggregated rate for natural gas was $1.47/therm. The building used approximately 22,545 therms of gas costing $33,215.18 in 2008. The following chart shows electricity usage for the buildings based on utility bills for the year 2008.

Electricity Use

-

20,000

40,000

60,000

80,000

100,000

120,000

140,000

1 2 3 4 5 6 7 8 9 10 11 12

Electricity Use

In the above chart, the electricity spikes upwards during the summer months as expected. The high usage in January is unexpected and unusual considering the electrical equipment used by the buildings.




The following chart shows the natural gas usage for the Municipal building based on utility bills for the year 2008.

Natural Gas

-

500.00

1,000.00

1,500.00

2,000.00

2,500.00

3,000.00

3,500.00

4,000.00

4,500.00

5,000.00

1 2 3 4 5 6 7 8 9 10 11 12

Natural Gas

In the above chart, the natural gas usage follows a heating trend as expected. The extremely small hot water use of the Municipal building is reflected in the amount of gas used in the summer months. The Library uses electricity to produce hot water.

1.2. Utility rate

The buildings currently purchase electricity from JCP&L at the general service 3 rate. The Municipal building uses account # 1000000905016 at service address 65 Mount Hope Road, Rockaway, NJ 07866. Natural Gas service is provided by New Jersey Natural Gas, account # 14-1167-3195-10. Electricity was billed at an average aggregated rate of $0.159/kWh and natural gas was billed at an average aggregated rate of $1.47/therm.

1.3. Energy benchmarking

The building information and utility data were entered into the U.S. Environmental Protection Agency’s (EPA) Energy Star Portfolio Manager energy benchmarking system. A summary report of the Portfolio Manager results is provided on the following page. The consumption for both the municipal building and library were combined in this analysis because the buildings are served off of one gas and one electric meter. The energy performance rating therefore can not be calculated because it is a mixed use space for which there is no set benchmark. Per the LGEA program requirements, SWA has assisted the Township of Rockaway to create an Energy Star Portfolio Manager account and share the Rockaway Library facilities information to allow future data to be added and tracked using the benchmarking tool. SWA has shared this Portfolio Manager site information with TRC Energy Services, user name TRC-LGEA, as well as the Township of Rockaway with the following user name and password: User name: “Rockawaytownship” Password: “Rockaway”




2. FACILITY AND SYSTEMS DESCRIPTION

2.1. Building Characteristics

The Municipal building was built in 1980 and currently houses the Rockaway Municipal offices and the Police Headquarters. The building is one-story with a daylight basement and a total floor area of 32,000 square feet. The Police Headquarters uses the entire lower level and consists of mostly office space but also contains separate men and women holding cells, a locker room and gym, a radio dispatch center and a sally port garage. The Library was also built in 1980 and while most of the space is used for the library, there are several offices as well as a staff break room and a meeting room. It is comprised of 23,000 square feet of conditioned floor area.

2.2. Building occupancy profiles

There are approximately 100 employees in the Municipal building at any given time but occupancy can swell significantly when court is in session or during special events. The library has 17 full time employees with volunteers putting in about 5 hours a week. Obviously the library building occupancy will constantly be changing during operating hours.

2.3. Building envelope

2.3.1. Exterior walls

The exterior walls of both buildings consist of concrete blocks with a brick facade. There is one and one half inches of rigid polyurethane foam sandwiched between the concrete blocks and the face brick. Due to de-rating of performance over time, the insulating value (R-Value) is probably equivalent to R-8 or R-9. Adding insulation to this type of wall construction is not cost effective.

2.3.2. Roof

The roofs of both buildings are flat or extremely low-slope and are constructed of a one and a half inch metal deck with approximately two inches of perlite-urethane rigid insulation and a built-up roofing (BUR) that may have been covered with gravel at one time. The two inches of perlite-urethane insulation would have provided an R-Value of approximately R-11 to R-14 when new. The roofs are approaching the end of their useful lives and should be replaced in the near future. SWA recommends installation of a new Liquid Applied Membrane (LAM) roof covering. LAM roofing is relatively inexpensive and does not necessitate opening up the roof to the weather during installation limiting the possibility of any weather related damage to the structure.

2.3.3. Base

The Municipal building’s base is a five-inch concrete slab-below-grade in most places and a five-inch slab-on-grade in others. The Library’s base is predominately a five-inch slab-on-grade. There were no reported problems with water penetration or moisture. The perimeter of the foundation walls is insulated with one and a half inches of rigid polystyrene foam board.




The building plans did not indicate if the insulating material was expanded or extruded polystyrene but considering when the buildings were built, it is probably the more common expanded polystyrene. Polystyrene is a closed cell material that can be molded into various shapes. It is similar to polyurethane in that it is also manufactured using a blowing agent of low-conductivity gas and will also experience some thermal drift over time. The slab perimeter insulation provided an approximate R-Value of R-7 to R-8 when new. Excavation to install additional foundation wall and slab insulation is expensive and would not be cost-effective as a single measure. However, if the perimeter of the building is ever excavated to repair or replace drainage protections, installing an additional two inches of rigid foam board insulat ion should be considered.

2.3.4. Windows

There is an extensive amount of glazed area compared to solid exterior wall area in both buildings. The existing windows are aluminum framed with dual glazing. They are in fair condition. SWA conducted tests on the window panes and was not able to determine if a low-e film coating or gas filling existed on and in these windows. Based on the age of the buildings, SWA assumes that the windows have neither an effective low-e coating nor an inert gas between the panes of glass. Interviews with staff members reflect a consensus that the windows are “cold and leaky”. Part of the reason for comfort complaints is that much of the original weather-stripping on the windows has deteriorated, which allows infiltration of unconditioned outside air into the interior. Aluminum frames that do not have a thermal break also allow heat to be conducted out of the building. The occupant feedback may indicate that the windows were manufactured without a “thermal break” – a polypropylene gasket that isolates the interior aluminum frame from the exterior frame – preventing the frame from being a thermal bridge that rapidly conducts heat directly through the aluminum to the outside. The operable windows are an unusual type of sliding mechanism that actually levers the entire sash up and over into a channel that provides a pathway for the window to slide past the adjacent glazing. The lever is extremely difficult to operate and several staff members said that, once open, the windows were almost impossible to close properly, and as such, they do not ever open them. The SWA building analyst did see several windows that were stuck in a not quite closed position allowing unconditioned air to infiltrate the building interior. This almost assures that the windows are never used for ventilation as they were designed to. New windows are an extremely expensive project and, strictly from an energy/cost saving viewpoint, do not show a favorable cost/benefit analysis. However, in a commercial building, occupant comfort plays a significant role in productivity. So, replacing the windows with high performance windows may provide comfort and aesthetic benefits. There are also interior and exterior retrofit strategies that would provide increased comfort for building occupants and significant energy savings. One alternative may be the installation of an interior storm window system manufactured using two layers of high strength plastic film on an aluminum frame. This type of system has been shown to lower the u-value (u-value is a measure of transmission of heat through a material or assembly; lower numbers indicate better performance) of single pane windows from about .9 to .31, almost triple the insulating value. These systems have also been shown to reduce drafts and minimize radiation from cold surfaces. It is difficult to verify the rated energy performance of site-built assemblies, as a




result, it is difficult to guarantee energy savings and any associated economic payback. Selection of the appropriate alternative should be made with consideration to comfort, durability, window functionality, and aesthetics as well as possible energy savings. As a maintenance practice, the weather-stripping on all windows should be inspected and all missing or deteriorated sections should be repaired or replaced. Although natural daylighting has been shown to improve occupant health, solar heat gain and glare from older glazing often negatively impact activities and comfort within the space. For problem areas, it may be beneficial to install tinted glazing or a window film to reduce the glare and solar heat gains. Tinting or films may provide some energy savings but are primarily intended to improve occupant comfort.

2.3.5. Exterior doors

The exterior doors of both buildings are in satisfactory condition and much of the weather-stripping is still intact. Exterior doors are a major source of heat loss in general. SWA recommends checking the weather-stripping of each exterior door on a regular basis and replacing any broken seals immediately. This will prevent unconditioned air from infiltrating into the building interior.




2.3.6. Building air tightness

Based upon a visual inspection, both buildings were observed to be relatively well-sealed considering their age. There were no observed significant deficiencies of air tightness within either building. SWA recommends that all exterior doors and windows be carefully inspected on a regular basis and all missing or deteriorated weather-stripping be repaired or replaced. Any caulking at the perimeter of windows and doors should also be inspected and cracked or missing caulking should be cleaned and re-caulked. Any asbestos-like-material should be properly abated before energy-efficient upgrades, such as air sealing or adding insulation, are conducted.

2.4. HVAC systems

2.4.1. Heating

The heating plant consists of two Weil McLain hot water boilers for space heating. Both boilers appear to be about 30 Years old; one has a capacity of 1.79 million Btu/hour (MMBtu/hr), the other 1.05 MMBtu/hr. Each boiler has two vent stacks and along with the domestic hot water stack, all use a common chimney. These boilers supply heating to the Municipal building and the Public Library. There are two, 2 horsepower Armstrong circulator pumps for each boiler along with two 3/4 horsepower booster pumps to move hot water to the library. There are two 1/3 horsepower pumps on the basement floor for the police department heating. These boilers also provide space heating for the Public Library at 61 Mount Hope Road. There are hot water supply and return lines running from the Municipal building underground at the northern perimeter of the parking area about 600 feet to the library. Two ¾ horsepower circulators supply and return the heating water to the library and back to the municipal building. In the library mechanical room there are two ¾ horsepower building pumps for hot water heating.




There are two main types of heating distribution. Heating water from the boilers feed coils inside the air supply ducts over which air is heated before being introduced into the building work areas. There is also a perimeter distribution system of baseboard convectors to which heating water flows from the boilers. One air handling unit (AHU) with a heating water coil from the boilers brings in 100% fresh air, which moves over the hot water coil and is warmed before being distributed into the indoor shooting range adjacent to the police station on the lower level. The heated air is then completely exhausted and more heated fresh air is brought in. SWA is recommending replacement of the entire heating plant and installing a separate dedicated heating system for the library installed in the library building as well as a new dedicated system for the Municipal building. This will necessitate running a natural gas line to the library and disconnecting the underground supply and return pipes currently used to bring heating water between the library and the Municipal building. Underground heating pipes are problematic in several ways. In addition to the heat loss through the hundreds of feet of underground pipe, there will also be a problem identifying the location of any leaks in the system. Leaks in the supply or return lines will make it necessary to constantly introduce cold ground water into the system, water that has to be brought up to working temperature and that contains minerals harmful to the boilers. The new boilers should be condensing boilers, which are capable of running at significantly higher efficiencies than traditional, non-condensing boilers. As condensing boilers are so efficient, there will be no need to build a chimney for the library system as the vent gases in condensing boilers are cool enough that they can be vented from the building in PVC pipe.

2.4.2. Cooling

Municipal Building

The cooling system consists of two Trane roof top unit electric package DX systems with single zone variable air volume (VAV) distribution systems. Both units are equipped with built-in hot water coils to preheat intake air supplied to the air handlers in winter months. The larger of the two systems is a 50 ton unit with a ten horsepower exhaust and a 15 horsepower supply fan motors. This unit serves the Municipal offices and public service areas on the upper level. This is original equipment and as such is almost 30 years old which, according to Trane, is beyond the expected useful life of this type of system. The smaller system is a 20 ton unit that serves the lower floor Police Department offices. This is also original equipment that has gone beyond its’ expected useful life. The distribution system for both consists of package air handler with VAV boxes with supply air ducted to diffusers serving the interior. The larger unit for the upper floors is equipped with 15 dedicated thermostats for each fan/coil supply. There are eight thermostats for the lower floor system. The space above the dropped acoustical tile ceiling is used as the return air plenum.




SWA recommends replacement of both cooling systems each with an energy efficient rating of at least 12.5. The new systems should be equipped with NEMA premium high efficiency motor and variable frequency drives.

Rockaway Public Library Cooling

Cooling for the library is provided by a Trane 40 ton roof top electric packaged DX unit with a 10 horsepower exhaust fan and 15 horsepower supply fan motor. It is a single zone VAV system that is also approaching 30 years old and has outlived its’ expected useful life. This unit also has a hot water coil to preheat air for distribution through the roof top air handler for space heating during winter. This unit provides cooling for both levels of the library. SWA recommends replacement of this system with an energy efficient rating of at least 12.5. The new system should also be equipped with NEMA premium high efficiency motor and variable frequency drives.

2.4.3. Ventilation

The roof top units supply fresh air to the air handlers for the variable air volume distribution system. The air handler for the shooting range supplies 100% heated fresh air during the winter time and unconditioned fresh air , as needed, during the summer. There are exhaust fans for the restrooms. Ventilation for the library is also provided by the package roof top unit. ASHRAE Standard 62-99 identifies the outdoor air ventilation required for indoor air quality. Almost all municipal, state and federal jurisdictions use these guidelines as gospel in their building codes and bylaws. The traditional method of accomplishing the ventilation rates was to set the outdoor air quantity to maximum design occupancy. This can result in a tremendous waste of energy when the occupant load is not at maximum –almost always the situation in many commercial buildings - or intermittent use of the space. Carbon dioxide monitoring and control is an acceptable method of reducing ventilation rates when occupancy is below the design load. This ensures ASHRAE standards are being met and only expending the necessary amount of energy.

SWA recommends installation of CO2 based demand controlled ventilation (DCV) for both buildings. Currently, the air handling units for the Municipal building and the library provide minimum outside air based on the building’s maximum design occupancy. The proposed measure will see that instead of continuously ventilating the space at a constant rate designed to accommodate the maximum occupancy of the building, the CO2 based demand-controlled ventilation (DCV) will assure that the amount of outside air drawn in for ventilation depends on the building's actual occupancy at any given time. This strategy results in energy savings because it reduces the amount of air that needs to be conditioned as well as the fan energy used to move that air. DCV primarily refers to when actual occupancies are approximated by measuring carbon dioxide (CO2) levels within a building with sensors. This strategy results in energy savings because it reduces the amount of air that needs to be conditioned as well as the fan energy used to move that air.




There is also an issue with ventilation in the pistol range. The present system provides more than sufficient ventilation but this is done by not re-circulating any inside air. The separate dedicated air handling unit draws 100% fresh air, heats it and supplies the pistol range. The heated air is then completely exhausted with new fresh air introduced in the next cycle. A contaminant based demand controlled ventilation system would supply fresh air based on the amount of specific contaminants in the pistol range air (lead for example), and supplies fresh air only when these contaminants are approaching uncomfortable or dangerous levels.

2.4.4. Domestic Hot Water

In the Municipal building, domestic hot water (DHW) is provided by a natural gas direct-fired 156,000 Btuh water heater / storage tank combination, with a 48 gallon storage capacity. DHW for the Library is provided by a 9kW electric water heater with 30 gallons of storage. SWA recommends replacing both domestic water heaters with new, high efficiency gas-fired condensing boilers with separate storage tanks. More efficient hot water appliances will save energy through reduced energy consumption for water heating with additional cost savings due to reducing water and sewer bills. Energy saving appliances bearing the ENERGY STAR label should be selected to ensure efficiency performance.




2.5. Electrical systems

2.5.1. Lighting Interior Lighting –Both the Rockaway Municipal Building and the Public Library were built in 1980, almost all of the lighting is older technology and there are ample opportunities for significant improvement. Most of the lighting in both buildings is comprised of fixtures contain older magnetic ballasts and T12 (1.5 inch diameter) linear fluorescent lamps. There are several types of lighting that are used in the building, the most prevalent being fluorescent. Fluorescent lighting uses 25%–35% of the energy used by incandescent lamps to provide the same amount of illumination (efficacy of 30–110 lumens per watt). They also last about 10 times longer (7,000–24,000 hours). The light produced by a fluorescent tube is caused by an electric current conducted through mercury and inert gases. Fluorescent lamps require a ballast (transformer) to regulate operating current and provide a higher start-up voltage. Most of the lighting ballasts at the building are magnetic and should be upgraded. Electronic ballasts outperform standard and improved electromagnetic ballasts by operating at a very high frequency that eliminates flicker and noise. Electronic ballasts also are more energy-efficient. Special ballasts are needed to allow dimming of fluorescent lamps. Improvements in technology have resulted in fluorescent lamps with color temperature and color rendition that are comparable to incandescent lamps. There are two general types of fluorescent lights: Compact fluorescent lamps (CFLs) Fluorescent linear tubes, U-tubes and circline (round) lamps The municipal building and library use predominantly linear and U-tube fluorescents but there are a number of compact fluorescents in recessed fixtures in a few areas of both buildings The lighting for the Municipal building is generally operating for approximately 8.5 hours a day during the Municipality’s business hours (Monday through Friday year round). The Library lighting operates for as much as 71 hours a week. In accordance with requirements of the Local Government Energy Audit program, SWA, Inc. performed an investment grade lighting audit, which provides a comprehensive survey of existing lighting, and an extensive technical and financial analysis. It provides a dynamic simulation of the base building, calibrated against actual energy bills, as well as the proposed energy conservation measures. Refer to Appendix A for a table detailing the survey the existing lighting and separate tables showing the lighting fixtures that should be improved and the fixtures that should replace them and an analysis showing simple payback, life cycle cost/benefit and return on investment. Exit Lights – The exit lighting at the Municipal and Library buildings presently contain small incandescent lamps and should be replaced with light emitting diode (LED) fixtures at such time that the existing fixtures need replacement.

http://apps1.eere.energy.gov/consumer/your_home/lighting_daylighting/index.cfm/mytopic=12120








Exterior Lighting – SWA included all the exterior lighting on the Municipal complex grounds and found opportunities for improvement. Currently, the pole lighting around both buildings and the parking areas contain High Pressure Sodium (HPS) lamps. High Pressure Sodium is a type of high-intensity discharge lamp that uses sodium under high pressure as the primary light producing element. HPS lighting is used mostly in industrial applications and for security, street lights and other outdoor area lighting. They are probably the most prevalent large area outdoor lighting source. They are considered high efficiency lighting as they have a high efficacy of between 50 and 140 lumens per watt, and have a long useful life. However, recent improvements in outdoor LED (light-emitting diode) lighting provide another option for high efficiency outdoor lighting. A light-emitting diode is a semiconductor diode that emits light when an electric current is applied in the forward direction of the device. LEDs are widely used as indicator lights on electronic devices and increasingly in higher power applications such as flashlights and even in some area lighting. An LED is usually a small area light source, often with optics added to the chip to shape its radiation pattern and assist in reflection. The color of the emitted light depends on the composition and condition of the semi-conducting material used, and can be infrared, visible, or ultraviolet. SWA is recommending replacing the existing 400 watt high pressure sodium lamps in the pole lights with HTS-8 LED lamps with an input rating of 88 watts.

2.5.2. Appliances and Processing

Look for the Energy Star label when replacing appliances and equipment, including: window air conditioners, refrigerators, printers, computers, copy machines, etc. More information can be found in the “Products” section of the Energy Star website at: http://www.energystar.gov Appliances, such as refrigerators, that are over 10 years of age can be replaced with newer efficient models with the Energy Star label. For example, Energy Star refrigerators use as little as 315kwh/hr. When compared to the average electrical consumption of older equipment, Energy Star equipment results in a large savings.

Computers left on consume a lot of energy. A typical desk top computer uses 65 to 250 watts and uses the same amount of energy when the screen saver is left on. Televisions use approximately 3-5 watts of electricity when turned off. SWA recommends all computers and all appliances (i.e. fridges, coffee makers, televisions, etc) be plugged in to power strips and turned off each evening just as the lights are turned off.

2.5.3. Elevators

There is no elevator in the Municipal building. There is one hydraulic elevator in the Library. It is not cost-effective to replace the elevator.

2.5.4. Other electrical systems

Except for the 187.5 kVA Caterpillar Emergency backup generator, there are currently no other major electrical systems installed at this building.

http://en.wikipedia.org/wiki/Semiconductor

http://en.wikipedia.org/wiki/Diode

http://en.wikipedia.org/wiki/Electric_current

http://en.wikipedia.org/wiki/Lighting

http://en.wikipedia.org/wiki/Color

http://en.wikipedia.org/wiki/Infrared

http://en.wikipedia.org/wiki/Visible_spectrum

http://en.wikipedia.org/wiki/Ultraviolet

http://www.energystar.gov/




3. EQUIPMENT LIST

Municipal Building Inventory

Heating

P1, 2 - Two (2) Armstrong Hot

water circulation pumps, 2 HP, 1725

RPM

Boiler Rm

Municipal

Building

Armstrong

M#438008BL,

S#300073

Electric 83% Municipal Building 2008 90%

Heating

P-3, 4 Two (2) Hot Water

Distribution Pumps B&G 3/4HP,

1725 RPM

Boiler Rm

Municipal

Building

Bell & Gosset

Cat#G207

Marathon Motor

Electric 83%Library Hot Water

distribution2008 90%

Heating

Two (2), B&G 1/3 HP, 1750 RPM

hot water pumps serving

westinghouse supply fan

Shooting Range

Mech Rm

Bell & Gosset

P#M80121F10Electric 83%

Shooting Range Outdoor

Air heating2005 75%

Heating /

Ventilation

Westinghouse Exhuast Fan, 7.5HP,

1750 RPM / Supply Fan 5HP

Boiler Rm

Municipal

Building /

Shooting Range

Mech Rm

Westinghouse

M#SBDP /

M#SBDP

Electric 60% Shooting Range Ventilation 1980 0%

Domestic Hot

Water

B&G domestic hot water circulating

pump, 1/6 HP, 1725 RPM

Boiler Rm

Municipal

Building

Bell & Gossett

M#M10711Electric 83% Municipal Building 2005 75%

GeneratorCaterpillar Natural Gas generator,

150 kW, 187.5 kVA

Boiler Rm

Municipal

Building

Caterpillar,

M#150-6033611,

S#85228

Natural Gas 90%All Areas Emergency

power1980 0%

Controls

Furnas air compressor, Climate

Control Systems, with Baldor motor,

2x 3HP motors, 120Gallon

Boiler Rm

Municipal

Building

Baldor Cat

#3211TElectric 85% Municipal Building controls 2005 75%

5%1993

Building

SystemDescription Model# Fuel Space served

Estimated

Remaining

useful life %

Location

Heating

B-1 Weil McLain Hydronic boiler;

2.2 MMBH In 1.790 MMBH out,

Non-condensing with atmospheric

burner.

LGB-18

S#CP2267041Natural Gas

Supplies hot water for

space heating to Municipal

Building and Library

Boiler Rm

Municipal

Building

70%2003

Heating

B-2 Weil McLain hydronic boiler;

1.3 MMBH, 1.053 MMBH. Non-

condensing with atmospheric burner.

LGB-11

S#HSB08538Natural Gas

Supplies hot water for

space heating to Municipal

Building and Library

5%1993

Domestic Hot

Water

One gas-fired domestic water heater

with 48 gallon storage tank; 156,000

Btuh in

Rheem Ruud

M#GAB2-156,

S#URNG1197G

03367

Natural GasProvides DHW throughout

municipal building

Boiler Rm

Municipal

Building

Boiler Rm

Municipal

Building

Cooling

One Trane 20 ton, single zone VAV,

package DX system, 6,200 CFM

Supply, 3,920 CFM Return

ElectricityProvides cooling to Police

Department on lower level.0%

Trane

M#SAHA20040

124A26DJOJB

Roof Municipal

Building

Cooling

One Trane 50 ton single zone,

package DX system. 16,000 CFM

Supply, 12,265 CFM Return

Electricity

Provides cooling to

Municipal Offices on upper

level.

0%

Trane

M#SAHA50040

A64A55DJOJB

Roof Municipal

Building 1980

1980

Date

Installed

9 EER

9 EER

58%

81%

81%

Efficiency




Public Library Inventory

Heating

Two (2) Hot water circulating

pumps, Marathon 3/4 HP, 1725

RPM

Library

Mechanical Rm

Marathon motor,

M#UVL56T170

55404

Electric 83% Library 2005 75%

Elevator

Leroy Somer 15HP Elevator Motor

for 2 floors, nameplate damaged,

1735 RPM

Library

Mechanical Rm

Leroy Somer

Motor

M#H0500793,

Design B

Electricity 79% Library 1980 0%

Air

compressor

Devilbiss Air compressor, Baldor

motors 2 x 1HP

Library

Mechanical Rm

Devilbliss,

M#BUBL-5554,

S#4452

Electricity 85% Library Controls 1980 0%

Heating Weil McLain Boilers B-1 & B-2, see Municipal Building inventory

Building

SystemDescription Model# Fuel Space served

Estimated

Remaining

useful life %

Date

InstalledEfficiencyLocation

85%2007Electric water heater 9 kW w/ 30

gallon storage

Library

Mechanical Rm

Cooling

One Trane 40 ton, single zone VAV,

package DX system, 12,700 CFM

Return, 13,800CFM Supply

Roof of Library Electricity Library 0%198085%

Trane

M#SAHA40040

16A44DJJ

Domestic Hot

Water

Ruud M#ELD30-

E85%Electricity Library

Note: The remaining useful life of a system (in %) is an estimate based on the system date of built and existing conditions derived from visual inspection.




4. ENERGY CONSERVATION MEASURES

Based on the assessment of this building, SWA has separated the investment opportunities into three categories of recommendations:

1. Capital Improvements – Upgrades not directly associated with energy savings 2. Operations and Maintenance – Low Cost/No Cost Measures 3. Energy Conservation Measures – Higher cost upgrades with associated energy savings

Category I Recommendations: Capital Improvements

Demand controlled ventilation system for pistol range

Interior Storm Window System

Category II Recommendations: Operations and Maintenance

Weather Stripping/Air Sealing – As a best practice, exterior/overhead doors and vestibule doors should be observed annually for deficient weather-stripping and replaced as needed. The perimeter of all window frames should also be regularly inspected and any missing or deteriorated caulking should be re-caulked to provide an unbroken seal around the window frame. Building staff should also verify that windows open and close properly and repair, as needed. Any other accessible gaps or penetrations in the thermal envelope should also be sealed with caulk or spray foam. Particular attention should be paid to penetrations and doors connecting the main building to the garage to prevent transfer of combustion product.

Pipe Insulation – All heat water, steam and DHW pipes should be inspected and any missing or deteriorated insulation should be replaced with new.

Plug-In Timer Controls – For locally controlled equipment that the staff are currently responsible for turning off equipment when not in use. Plug-in timer controls can be utilized to ensure electrical equipment does not operate during unoccupied periods.

Lighting Controls - Occupancy sensors and/or photocells, should also be considered. In applications where occupants tend to leave the lights running inadvertently, such as during fire response or other extended periods of absence, the occupancy sensors automatically shut-off the lights. Since operating hours vary, a survey of the building occupants can provide the most accurate feedback on lighting usage patterns within the facility to help determine the appropriateness of lighting controls.

Energy Star Appliances - Consider Energy Star labeled equipment and appliances when replacement is necessary, including: refrigerators, printers, computers, copy machines, etc. Water Efficient Fixtures & Controls - Adding controlled on/off timers on all lavatory faucets is a cost-effect way to reduce domestic hot water demand and save water. Building staff can also easily install faucet aerators and/or low-flow fixtures to reduce water consumption. There are many retrofit options, which can be installed now or incorporated as equipment is replaced. Routine maintenance practices that identify and quickly address water leaks are a low-cost way to save water and energy. Retrofitting with more efficient water-consuming fixtures and appliances will save both energy and money through reduced energy consumption for water heating, while also decreasing water and sewer bills.




Category III Recommendations: Energy Conservation Measures

Summary table

ECM# Description

1 High efficiency Lighting for Both Buildings

2 Two New Condensing Boilers – Both Buildings

3 Three New Roof Top Unit DX Package Cooling – Both Buildings

4 CO2 Based Demand Controlled Ventilation – Both Buildings

5 Two New Condensing DHW Boilers – Both Buildings

6 7.5 kW Solar Photovoltaic System - Both Buildings




ECM#1: New High Efficiency Lighting

Description:

The lighting at both buildings is comprised of older technologies. There are some incandescent lighting and some compact fluorescent lighting. The bulk of the lighting is provided by linear fluorescents using magnetic ballasts and T12 diameter lamps. Almost all of the linear fluorescent lighting should be replaced, or retrofitted where possible, with electronic ballasts and T8 diameter lamps.

Installation cost: Municipal Building: $51,444 Public Library: $47,585 Source of cost estimate: Contractor Estimates

Economics:

Municipal Building:

est mat'l,

$

est labor,

$

estimated

$ source usage unit

demand

Kw

O&M

savings

$

energy

savings$

total

savings $

High Efficiency


life cycle

savings $

Avg

ROI

%

IRR %ECM

description


SPP LoM

Public Library:

est mat'l,

$

est labor

$

estimated


O&M

savings

$

energy

savings $

total

savings

$

High Efficiency


IRR life cycle

savings

Avg

ROI

ECM

description


SPP LoM

Assumptions: Certain assumptions were made regarding the amount hours each day that the existing lights are actually turned on and drawing power. Wherever possible, SWA used time provided by Rockaway Township staff. Demand charges and savings were estimated based on JCP&L price comparison table.

Rebates/financial incentives:

The New Jersey Clean Energy SmartStart Buildings program offers financial incentives for installation of certain energy efficient equipment, such as high efficiency T8 fluorescent lighting. If maximum incentives were to be realized, the incentives would amount to $11,890 to help offset the cost of the lighting.

Options for funding ECM: This project may benefit from enrolling in NJ SmartStart program with Technical Assistance to offset a portion of the cost of implementation. http://www.njcleanenergy.com/commercial-industrial/programs/nj-smartstart-buildings/nj-smartstart-buildings

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





ECM#2: New Boilers

Description:

Presently, both buildings are heated primarily from a two boiler heating plant located in the Municipal building. The boilers are old and approaching the end of their useful life expectancy. The piping bringing the heating water to and from the library runs under hundreds of feet of parking lot. This presents several problems. Traveling that distance necessitates heating the water to a high enough temperature to assure that it is still hot enough to keep the library comfortable despite all the heat loss that that length of piping will create. It also makes it almost impossible to locate and repair any leaks in the underground supply or return lines, necessitating introduction of unheated water into the loop to replace any leaks.

A new gas service should be brought to the library and a new condensing boiler installed in the library building. The underground pipes should be disconnected and closed off. A new boiler should be installed in the Municipal building to heat the Municipal offices and the Police Station. SWA has been informed by a representative of New Jersey Natural Gas (NJNG) that NJNG has offered to install the new gas service in the library without charge if Rockaway provides the ditch. Rockaway has confirmed that they had indeed received this offer and if they decide to go ahead with the project, will use in-house labor to prepare the ditch.

The cost estimates below do not reflect the services of design professional(s) required to determine the appropriate system configuration and sizing, and to ensure code compliance. Additional design services may be required to determine the appropriate location of the new mechanical room.

Installation cost:

Municipal Building: $63,500 Public Library: $50,000 Source of cost estimate: Estimate Municipal Building:

est mat'l,

$

est labor,

$

estimated

$ source usage unit

demand

Kw

O&M

savings

$

energy

savings$

total

savings $

New

Condensing

Boiler


life cycle

savings $

Avg

ROI

%

IRR %ECM

description


SPP LoM

Public Library:

est mat'l,

$

est labor

$

estimated


O&M

savings

$

energy

savings $

total

savings

$

New On Site

Condensing

Boiler


IRR life cycle

savings

Avg

ROI

ECM

description


SPP LoM

Assumptions: SWA assumes thermal savings based on heating loads calculated using eQUEST modeling and by conducting the billing analysis.




Rebates/financial incentives: The Boilers are equipment for which incentives are available from the New Jersey Clean Energy Program. Gas fired boilers between 300 and 1,500 thousand btus (MBtuh) qualify for a rebate of $1.75 per MBtuh.Depending on final sizing of the boilers, each one should qualify for approximately $1,750 (assuming installation of 1000 MBtuh boilers).

Options for funding ECM: This project may benefit from enrolling in NJ SmartStart program with Technical Assistance to offset a portion of the cost of implementation.


ECM#3: New Cooling Systems

Description:

The three existing package DX cooling systems located on the roof of both buildings are original equipment dating to when the buildings were built in 1980. Both are beyond their estimated useful lives and are being kept working only through extensive and expensive repairs and maintenance. The estimated Seasonal Energy Efficiency Rating (SEER) of all three is around 6 or 7. Newer systems can provide SEER values of 12 or more for this size unit. The exiting unit condensers are also using R22 refrigerant. SWA recommends that the Township of Rockaway look into the impending ban on R22 refrigerant. Production of R22 will be banned starting in 2010; however, R22 should still be available at a premium price for occasional replenishment needs of existing systems. Newer refrigerant choices include R134, R410A, etc.

Installation cost Municipal Building: $98,950 Public Library: $54,800 Source of cost estimates: RS Means

Municipal Building:

est mat'l,

$

est labor,

$

estimated

$ source usage unit

demand

Kw

O&M

savings

$

energy

savings$

total

savings $

Two New

RTU Cooling

System

$34,633 $64,318 $98,950 RS Means 125,500 kWh 25.5 $2,360 $19,955 $22,315 4.4 12 $222,119 10.4% 20.0%

life cycle

savings $

Avg

ROI

%

IRR %ECM

description


SPP LoM

Public Library:

est mat'l,

$

est labor

$

estimated


O&M

savings

$

energy

savings $

total

savings

$

New RTU

Cooling System

40 tons

$19,180 $35,620 $54,800 RS Means 65,000 kWh 13.2 $2,360 $10,335 $12,695 4.3 12 $126,366 10.9% 20.8%

IRR life cycle

savings

Avg

ROI

ECM

description


SPP LoM






Assumptions: SWA assumes savings based on cooling loads calculated using eQUEST modeling and by conducting the billing analysis. Rebates/financial incentives: Rebates are available for high efficiency cooling systems of this type from the New Jersey Clean Energy SmartStart Buildings program. Incentives for the replacement equipment could be as much as $10,120 if maximum incentive amounts are realized.


ECM#4: Install CO2 Based Demand Controlled Ventilation

Description: Building codes require that a minimum amount of fresh air be provided to ensure adequate air quality. To comply, ventilation systems often operate at a fixed rate based on an assumed occupancy (e.g., 15 cfm per person multiplied by the maximum design occupancy). The result is there often is much more fresh air coming into buildings than is necessary, especially in buildings with long operating hours and occupancy that can be well below maximum for extended periods of time, such as public libraries and to a lesser degree, courtrooms and municipal offices. That fresh air must be conditioned, resulting in higher energy consumption and costs than is necessary with appropriate ventilation. In humid climates, excess ventilation also can result in uncomfortable humidity and mold and mildew growth, making the indoor air quality (IAQ) worse rather than better.

Demand-controlled ventilation (DCV) using carbon dioxide (CO

2) sensing is a combination of two

technologies: CO2 sensors that monitor CO

2 levels in the air inside a building, and an air-handling system

that uses data from the sensors to regulate the amount of ventilation air admitted.

Installation cost: Municipal Building: $22,176 Public Library: $19,100

Source of cost estimate: Federal Energy management Program “Demand-Controlled Ventilation Using CO2 Sensors”; AirTest Energy Analysis Program for CO2 based demand-controlled ventilation.

Municipal Building:

est mat'l,

$

est labor,

$

estimated

$ source usage unit

demand

Kw

O&M

savings

$

energy

savings$

total

savings $

Demand

Controlled

Ventilation

$7,762 $14,414 $22,176 Online35,574 /

1758

kWh /

Therms7.2 $0 $8,241 $8,241 2.7 12 $82,026 22.5% 36.3%

life cycle

savings $

Avg

ROI

%

IRR %ECM

description


SPP LoM






Public Library:

est mat'l,

$

est labor

$

estimated


O&M

savings

$

energy

savings $

total

savings

$

Demand

Controlled

Ventilation

$6,685 $12,415 $19,100 Online24,941 /

1,207

KWh /

Therms5.1 $0 $5,740 $5,740 3.3 12 $57,135 16.6% 28.6%

IRR life cycle

savings

Avg

ROI

ECM

description


SPP LoM

Assumptions: SWA estimated the cost and savings of the measure based on the AirTest Energy Analysis Program for CO2 based demand controlled ventilation. There are certain assumptions made within the program that are detailed in program calculations available as a separate document.

Rebates/financial incentives: While there are no prescriptive incentives for retro-commissioning available from the New Jersey Clean Energy Program, an argument could be made that the energy savings deriving from this measure should qualify for the custom electric and custom gas savings available from the SmartStart Commercial Building Incentive Program. Applications for the custom electric and gas incentives are included in the Appendix B of this document.

ECM#5: Install New Condensing DHW Boilers

The existing domestic water heaters are both older inefficient models. Both should be replaced with condensing type boilers with separate insulated storage tanks. The library replacement will be contingent upon installing a new natural gas service in the library (see ECM #2: New

Boilers on Page 23). Installation cost Municipal Building: $ 7,250 Public Library: $ 8,200 Source of cost estimate: Estimate

Municipal Building:

est mat'l,

$

est labor,

$

estimated

$ source usage unit

demand

Kw

O&M

savings

$

energy

savings$

total

savings $

New

Condensing

DHW Boiler

$2,538 $4,713 $7,250 Estimate 700 Therms NA $590 $1,029 $1,619 4.5 12 $16,116 10.2% 19.8%

life cycle

savings $

Avg

ROI

%

IRR %ECM

description


SPP LoM

Public Library:

est mat'l,

$

est labor

$

estimated


O&M

savings

$

energy

savings $

total

savings

$

New Gas Fired

Water Heater$2,870 $5,330 $8,200 Estimate 12,453 kWh 2.5 $590 $1,980 $2,570 3.2 12 $25,582 17.7% 30.0%

IRR life cycle

savings

Avg

ROI

ECM

description


SPP LoM




Assumptions: SWA assumes DHW savings based on hot water loads calculated using eQUEST modeling and by conducting the billing analysis.

Rebates/financial incentives: Rebates are available for high efficiency water heating systems of this type from the New Jersey Clean Energy SmartStart Buildings program. Incentives for the replacement equipment could be anywhere between $50.00 and $298.00, depending on the exact equipment installed.


ECM#6: Install Two 7.5kW PV systems Description:

Currently, neither building utilizes any renewable energy systems. Renewable energy systems, such as photovoltaic panels, can be mounted on the roof and offset a portion of the purchased electricity for the building. Utilities generally use two separate electrical charges; usage and demand. Usage is the amount of electricity in kilowatt-hours that a building uses from month to month. Demand is the amount of electrical power that a building uses at any given instance in a month period, with the utility’s charges based on the highest, or peak, demand during any specified period of the month. During summer periods, when electric demand at any power station is high due to the amount of air conditioners, lights, equipment, etc. being used within the region, demand charges go up to offset the utilities’ cost of providing enough electricity at that given time. Photovoltaic systems not only offset the amount of electricity consumed by a building but also reduce the buildings electric demand, resulting in a additional cost savings as well. SWA recommends installing a 7.5kW PV system on both buildings that will offset the highest annual demand for the buildings and perhaps allow the Township to actually sell electrical power back to the utility company at certain times.

Installation cost:

Municipal Building: $60,000 Public Library: $60,000

Source of cost estimate: Estimated based on similar projects.

2Municipal Building:

est mat'l,

$

est labor,

$

estimated

$ source usage unit

demand

Kw

O&M

savings

$

energy

savings$

total

savings $

7.5 kW Solar


life cycle

savings $

Avg

ROI

%

IRR %ECM

description


SPP LoM

2 Calculations in tables incorporate incentives. See details in Rebates/financial incentives on the following page.






Public Library:

est mat'l,

$

est labor

$

estimated


O&M

savings

$

energy

savings $

total

savings

$

7.5 KW Solar


IRR life cycle

savings

Avg

ROI

ECM

description


SPP LoM

Assumptions: SWA estimated the cost and savings of the system based on past PV projects.

Rebates/financial incentives: NJ Clean Energy – Renewable Energy Incentive Program, Incentive based on $1.00/watt Solar PV application. Incentive amount for this application is $7,500 per building as shown below:

$1/watt PV rebate, subtracted from installation cost for each building in the following tables. Estimated Cost w/out incentive: $60,000 - Rebate@$1 /watt * 7,500 watts = ($7,500)

Estimated cost: $52,500

http://www.njcleanenergy.com/renewable-energy/programs/renewable-energy-incentive-program NJ Clean Energy – Solar Renewable Energy Certificate Program. Each time a solar electric system generates 1000kWh (1MWh) of electricity, a SREC is issued which can then be sold or traded separately from the power. Incentive amount for this application is, assuming $600/kW, is $4,500 per building as shown below:

$600/kW Solar Renewable Energy Credits is credited in the energy savings calculation for each building in the following tables. Energy savings w/out incentive: 8,000 kWh * $0.159/kWh = $1,272 + SREC $600 * 7.5 kW = $4,500

Total 1st year Savings for each building = $5,772

Options for funding ECM:

This project may benefit from enrolling in NJ SmartStart program with Technical Assistance to offset a portion of the cost of implementation. http://www.njcleanenergy.com/commercial-industrial/programs/nj-smartstart-buildings/nj-smartstart-buildings






4.1. Combined Heat and Power

Description: SWA analyzed the feasibility of installing a combined heat and power system (also know as co -generation) for the Rockaway Municipal and Library buildings but believes that the expense of this type of system makes it economically unfeasible at this time

4.2. Geothermal

Description: Geothermal is not applicable for the Municipal building because it would not be cost effective to change to a geothermal system.

4.3. Wind

Description: Wind power production is not appropriate for this location, because required land is not available for the wind turbine. Also available wind energy resource is very low.

4.4. Solar Thermal Collectors

Description:

In discussions with representatives from the Township of Rockaway, SWA was asked to investigate best-fit options for a solar thermal heating system for the Municipal Building. SWA’s analysis assumes that 50% of the roof area is available for installation space and that 30 U Tube Collector type cells would be used. For this type of system the estimated installed cost is approximately $350,000, with a potential annual energy savings of $17,000, with a payback in excess of 20 years. SWA does not recommend installation of this system at this time. As further incentives and rebates become available for this installation, the Township of Rockaway should reinvestigate this renewable energy option.




5. ENERGY PURCHASING AND PROCUREMENT STRATEGIES

5.1. Load profiles

Electricity Use

-

20,000

40,000

60,000

80,000

100,000

120,000

140,000

1 2 3 4 5 6 7 8 9 10 11 12

Electricity Use

Natural Gas

-

500.00

1,000.00

1,500.00

2,000.00

2,500.00

3,000.00

3,500.00

4,000.00

4,500.00

5,000.00

1 2 3 4 5 6 7 8 9 10 11 12

Natural Gas




5.2. Tariff analysis

Rockaway Township currently buys electricity and gas for both buildings from Jersey Central Power and Light and New Jersey Natural Gas, respectively on general service rates. The general service is a typical rate where customers pay for natural gas based on usage and for electricity based on consumption and peak electrical demand. The general service rate is appropriate.

5.3. Energy Procurement strategies

Bill analysis shows prices fluctuation of over 20% for electricity and over 30% for natural gas over the course of the year.

Electric account

Electricity Price Fluctuations

$-

$0.02

$0.04

$0.06

$0.08

$0.10

$0.12

$0.14

$0.16

$0.18

$0.20

1 2 3 4 5 6 7 8 9 10 11 12

Cost Per Kilowatt Hour

Natural Gas account

Natural Gas Price Fluctuations

$-

$0.500

$1.000

$1.500

$2.000

$2.500

$3.000

1 2 3 4 5 6 7 8 9 10 11 12

Cost Per Therm of Gas

SWA recommends that Rockaway contact the NJ Energy Choice program for assistance in deciding if a third party energy supplier for both the gas and the electricity would benefit the Township.

The building would not be eligible for enrolling in a Demand Response Program

because electric demand does not exceed 50kW, which is a typical threshold for considering this option.




6. METHOD OF ANALYSIS

6.1. Assumptions and tools

Energy modeling tool: eQUEST V3.6 Cost estimates: RS Means 2009 (Facilities Maintenance & Repair Cost Data)

RS Means 2009 (Building Construction Cost Data) RS Means 2009 (Mechanical Cost Data)

Cost estimates also based on utility bill analysis, contractor estimates and prior experience with similar projects.

6.2. Disclaimer

This engineering audit was prepared using the most current and accurate fuel consumption data available for the site. The estimates that it projects are intended to help guide the owner toward best energy choices. The costs and savings are subject to fluctuations in weather, variations in quality of maintenance, changes in prices of fuel, materials, and labor, and other factors. Although we cannot guarantee savings or costs, we suggest that you use this report for economic analysis of the building and as a means to estimate future cash flow.

THE RECOMMENDATIONS PRESENTED IN THIS REPORT ARE BASED ON THE

RESULTS OF ANALYSIS, INSPECTION, AND PERFORMANCE TESTING OF A SAMPLE OF COMPONENTS OF THE BUILDING SITE. ALTHOUGH CODE-RELATED ISSUES

MAY BE NOTED, SWA STAFF HAVE NOT COMPLETED A COMPREHENSIVE

EVALUATION FOR CODE-COMPLIANCE OR HEALTH AND SAFETY ISSUES. THE

OWNER(S) AND MANAGER(S) OF THE BUILDING(S) CONTAINED IN THIS REPORT

ARE REMINDED THAT ANY IMPROVEMENTS SUGGESTED IN THIS SCOPE OF WORK

MUST BE PERFORMED IN ACCORDANCE WITH ALL LOCAL, STATE, AND FEDERAL

LAWS AND REGULATIONS THAT APPLY TO SAID WORK. PARTICULAR ATTENTION

MUST BE PAID TO ANY WORK WHICH INVOLVES HEATING AND AIR MOVEMENT SYSTEMS, AND ANY WORK WHICH WILL INVOLVE THE DISTURBANCE OF

PRODUCTS CONTAINING MOLD, ASBESTOS, OR LEAD.

THIS DOCUMENT IS MEANT TO BE USED TO ANALYZE HOW THE BUILDING USES

ENERGY AND HOW VARIOUS ENERGY CONSERVATION MEASURES MIGHT AFFECT

FUTURE ENERGY AND OPERATING COSTS. IT IS NOT MEANT TO BE USED AS A DESIGN TOOL OR FOR EQUIPMENT SPECIFICATIONS.


Steven Winter Associates, Inc. 50 Washington Street Telephone(203) 857-0200 Architects and Engineers Norwalk, CT 06854 Facsimile(203) 852-0741


Appendix A: Lighting study

MUNICIPAL BUILDING

Building Level/Floor Location in Build ing

Measured

Lighting Level

in Footcandles

Fixture

Type

Ballast

Type

No. of

Fixtures

No. of

Lamps Watts/Lamp Hrs/Day

Energy Use

(Watt

hours/day)

Municipal One Entry Lobby 42.3 1CF26 5 5 26 8.5 1105

Municipal One Entry Lobby 9.5 1F48T12 M 12 12 48 8.5 4896

Municipal One Trophy Case 15.4 1F72T12 M 1 1 85 8.5 722.5

Municipal One Court Room 28 – 43 1F96T12 M 4 4 95 2 760

Municipal One Court Room 23.3 IINC23PAR 12 12 23 2 552

Municipal One Court Room 25 1F72T12 M 16 16 85 2 2720

Municipal One Court Room 23 1F48T12 M 4 4 48 2 384

Municipal One Main Dep't . Lobby 600 at skylites 2F34T12 M 12 24 34 8.5 6936

Municipal One Main Dep't . Lobby 2F30T12 M 6 12 30 8.5 3060

Municipal One Constrctn/Assess Side 43 1CF26 10 10 26 8.5 2210

Municipal One Constrctn/Assess Side 46 4F34T12 M 19 76 34 8.5 21964

Municipal Upper Constrctn/Assess Side 2F35T12-U M 1 2 35 8.5 595

Municipal Upper Planning Board Files 3F34T12 M 4 12 34 8.5 3468

Municipal Upper Planning Board Files 1F72T12 M 2 2 85 8.5 1445

Municipal Upper Administrator's Ofc. 56 - 170(window) 3F34T12 M 2 6 34 8.5 1734

Municipal Upper Planning & Development 56 - 170(window) 3F34T12 M 2 6 34 8.5 1734

Municipal Upper Tax Assessor 56 - 170(window) 3F34T12 M 3 9 34 8.5 2601

Municipal Upper Tax Assessor 56 - 170(window) 3F34T12 M 1 3 34 8.5 867

Municipal Upper Court Office 2F40T12 M 7 14 40 8.5 4760

Municipal Upper Judge's Office 2F40T12 M 4 8 40 3 960

Municipal Upper Court Cashier Entry 2F40T12 M 1 2 40 8.5 680

Municipal Upper Muni. Clerk/Finance 43 1CF26 10 10 26 8.5 2210

Municipal Upper Muni. Clerk/Finance 46 4F34T12 M 27 108 34 8.5 31212

Municipal Upper Muni. Clerk/Finance 2F35T12-U M 1 2 35 8.5 595

Municipal Upper Joe Fiorilla Ofc. 3F34T12 M 2 6 34 8.5 1734

Municipal Upper Diane's Old Ofc. 3F34T12 M 2 6 34 8.5 1734




Building Level/Floor

Location in

Building

Measured

Lighting Level

in Footcandles

Fixture

Type

Ballast

Type

No. of

Fixtures

No. of


Energy Use

(Watt

hours/day)

Municipal Upper Municipal Clerk 56 - 170-nr. Wind 3F34T12 M 2 6 34 8.5 1734

Municipal Upper Finance Director 56 - 170-nr. Wind 3F34T12 M 2 6 34 8.5 1734

Municipal Upper L.B. 56 - 170-nr. Wind 3F34T12 M 2 6 34 8.5 1734

Municipal Upper Corner Office 60 4F34T12 M 2 8 34 8.5 2312

Municipal Upper Corner Office 4F34T12 M 4 8 34 8.5 2312

Municipal Upper Fire Dep't Ofc. 3F34T12 M 2 6 34 8.5 1734

Municipal Upper Admin. / Mayor Wing 3F34T12 M 7 21 34 8.5 6069

Municipal Upper Admin. / Mayor Wing 10.3 1CF13 1 1 13 8.5 110.5

Municipal Upper Admin. / Mayor Wing 2F35T12-U M 2 4 35 8.5 1190

Municipal Upper Stairs 2F40T12 M 3 6 40 8.5 2040

Municipal Upper Admin/Mayor Ofc. 1 3F34T12 M 2 6 34 8.5 1734



Municipal Upper Conference 3F34T12 M 2 6 34 8.5 1734

Municipal Upper Copy/ Postage Room 2F34T12 M 6 12 34 8.5 3468

Municipal Upper Muni/Finance Desks 150 1F32T12 E 22 22 32 7 4928

Municipal Upper Corridor to Mayor's 1CF13 3 3 13 8.5 331.5

Municipal Upper Large Conference 19.5 - 52.5 - 61.5 6F34T12 M 2 12 34 6 2448

Municipal/Police Lower Dispatch Center Kept Dark 1INC50PAR NA 3 3 50 2 300

Municipal/Police Lower Dispatch Center Kept Dark 1F40T12 M 2 2 40 2 160

Municipal/Police Lower Dispatch Center Kept Dark 1F72T12 M 4 4 85 2 680

Municipal/Police Lower Small Dispatch Kept Dark 3F34T12 M 2 6 34 2 408

Municipal/Police Lower Firing Range Ofc 2F34T12 M 2 4 34 0.5 68

Municipal/Police Lower Firing Range Firing Side 4F34T12 M 2 8 34 0.5 136

Municipal/Police Lower Firing Range-Target Sd. 1INC150PAR NA 12 12 150 0.2 360

Municipal/Police Lower Firing Range-Target Sd. 1F34T12 M 25 25 34 0.2 170

Municipal/Police Lower Air Handler Room 1F34T12 M 2 2 34 0.5 34

Municipal/Police Lower Cell Area - Men 1CF13 5 5 13 24 1560

Municipal/Police Lower Cell Area - Men 1INC60 NA 1 1 60 24 1440

Municipal/Police Lower Cell Area - Men 14.7 2F34T12 M 2 4 34 24 3264




Building Level/Floor

Location in

Building

Measured

Lighting Level

in Footcandles

Fixture

Type

Ballast

Type

No. of

Fixtures

No. of


Energy Use

(Watt

hours/day)

Municipal/Police Lower Cell Area - women 1CF13 3 3 13 24 936

Municipal/Police Lower Cell Area - women 1INC60 NA 1 1 60 24 1440

Municipal/Police Lower Booking Room 3F34T12 M 2 6 34 12 2448

Municipal/Police Lower Fingerprint Room 3F34T12 M 1 3 34 12 1224

Municipal/Police Lower Sally Port 1F34T12 M 5 5 34 12 2040

Municipal/Police Lower Corridor 11.7 2F40T12 - U M 4 8 40 24 7680

Municipal/Police Lower Locker Room 2F40T12 - U M 5 10 40 24 9600

Municipal/Police Lower Gym 2F34T12 M 2 4 34 12 1632

Municipal/Police Lower Men's Room 2F34T12 M 1 2 34 12 816

Municipal/Police Lower Men's Room 2F40T12 - U M 1 2 40 12 960

Municipal/Police Lower First Corridor 21 2F40T12 - U M 4 8 40 24 7680

Municipal/Police Lower Garage 2F96T12 M 6 12 95 8.5 9690

Municipal/Police Lower Garage 2F34T12 M 1 2 32 8.5 544

Municipal/Police Lower Interview 3F34T12 M 1 3 34 8.5 867

Municipal/Police Lower Detective Bureau 58 3F34T12 M 12 36 34 8.5 10404

Municipal/Police Lower Interior Corridors 16 2F40T12 - U M 5 10 40 24 9600

Municipal/Police Lower Lieut. Ofc. 1 10.76 3F34T12 M 2 6 34 8.5 1734

Municipal/Police Lower Lieut. Ofc. 2 77 (shelf Window) 3F34T12 M 2 6 34 8.5 1734

Municipal/Police Lower Lieut. Ofc. 3 33-70(window) 3F34T12 M 2 6 34 8.5 1734

Municipal/Police Lower Administrative 58 3F34T12 M 8 24 34 12 9792

Municipal/Police Lower Administrative 1F34T12 M 1 1 34 12 408

Municipal/Police Lower Public Entry 2F34T12 M 4 8 34 12 3264

Municipal/Police Lower Small Office 3F34T12 M 2 6 34 8.5 1734

Municipal/Police Lower Bath Nr. Dispatch 2F40T12 - U M 1 2 40 6 480

Municipal/Police Lower Other Corridor 2F40T12 - U M 11 22 40 24 21120

Municipal/Police Lower Dispatch Command Ofc 53 3F34T12 M 2 6 34 8.5 1734

Municipal/Police Lower Captain's Office 64 3F34T12 M 2 6 34 8.5 1734

Municipal/Police Lower M.A. Office 3F34T12 M 2 6 34 8.5 1734

Building Level/Floor Location in Measured Fixture Ballast No. of No. of Watts/Lamp Hrs/Day Energy Use




Building Lighting Level

in Footcandles

Type Type Fixtures Lamps (Watt

hours/day)

Municipal/Police Lower Chief's Office 55 3F34T12 M 3 9 34 8.5 2601

Municipal/Police Lower Traffic Office 70 6F34T12 M 2 12 34 8.5 3468

Municipal/Police Lower Small Traffic Ofc. 65 4F34T12 M 1 4 34 8.5 1156

Municipal/Police Lower Small Traffic Ofc. 3F34T12 M 1 3 34 8.5 867

Municipal/Police Lower Staff/Conference 70 6F34T12 M 3 18 34 6 3672



Municipal/Police Lower Men's Room 2F40T12 - U M 1 2 40 12 960

Municipal/Police Lower Women's 2F40T12 - U M 1 2 40 12 960

Municipal/Police Lower Lobby Men's 2F40T12 - U M 1 2 40 12 960

Municipal/Police Lower Lobby Women's 2F40T12 - U M 1 2 40 12 960

Municipal/Police Lower Boiler Room 1F34T12 M 5 5 34 2 340

Municipal/Police Lower Boiler Room 1CF26 1 1 26 2 52

Municipal Outside Pole Lights HPS400 NA 16 16 400 12 76800

Municipal Outside Bollard Walk Lights 1INC75 NA 28 25 75 12 22500

Municipal Outside Outside Garages 1INC75 (recsd) NA 5 5 75 12 4500

Municipal Outside At Authorized Only 1INC150PAR NA 2 2 150 12 3600

Municipal Outside At Public Entry 1INC75 (recsd) NA 1 1 75 12 900

Municipal Outside At Public Entry 1INC150HID? NA 1 1 150 12 1800

Municipal Outside Main Muni Entry 1CF26 2 2 26 12 624

Municipal Outside Main Muni Entry 1INC150HID? NA 1 1 150 12 1800

Municipal Outside Other Side Entry 1CF26 2 2 26 12 624

Municipal Outside Other Side Entry 1INC150HID? NA 1 1 150 12 1800

Municipal Outside Outside Court 1INC75 (recsd) NA 4 4 75 12 3600




LIBRARY

ROCKAWAY TOWNS HIP LIBRARY LIGHTING S URVEY

Building Level/Floor Location in Build ing

Measured

Lighting Level

in Footcandles

Fixture

Type

Ballast

Type

No. of

Fixtures

No. of


Energy Use

(Watt

hours/day)

Library Upper General Overhead - Up 5.2 - 28.9 1F96PG17-

CW M 80 80 185 14 207200

Library Upper General Overhead - Up 26.25(help desk) 1F72PG17 M 20 20 165 14 46200

Library Upper Corners Overhead 56.6 3F32T8 E 18 54 32 14 24192

Library Upper Mens Room 2F48T12 M 1 2 48 14 1344

Library Upper Womens Room 2F48T12 M 1 2 48 14 1344

Library Upper Entry / Vestibule 4.25

1CF13

Recess 3 3 13 14 546

Library Upper Closet 1CF13 1 1 13 1 13

Library Upper Desk Lamps 56.8 2INC40 NA 4 8 40 6 1920

Library Lower Children's Reading 61 4F34T12 M 42 168 32 12 64512

Library Lower Large Adjacent Room 26 4F34T12 M 19 76 32 6 14592

Library Lower Large Adjacent Room 22.18 2FB30T8 M 2 4 30 6 720

Library Lower Vestibule at Child rm. 75 4F34T12 M 2 8 32 12 3072

Library Lower Vestibule at Vending 26 - 59 2FU30T8 M 9 18 30 12 6480

Library Lower Mens Room 2F48T12 M 1 2 48 12 1152

Library Lower Womens Room 2F48T12 M 1 2 48 12 1152

Library Lower Stairwell 6.35 -16.68 2F32T8 M 3 6 32 14 2688

Library Lower Staff Hallway 4 - 15 2FB40T12 M 5 10 40 14 5600

Library Lower Bet. Staff and Child 24 2F48T12 M 1 2 48 14 1344

Library Lower Office 1 60 (all 4 lamps) 4F34T12 M 4 16 48 9 6912

Library Lower Office 2 33 (just 2 lamps) 3F34T12 M 3 9 48 9 3888

Library Lower Director's Office 44-60-80 3F34T12 M 4 12 48 9 5184

Library Lower Office 4 60 4F34T12 M 2 8 48 9 3456

Library Lower Boiler Room 1F48T12 M 4 4 48 1 192

Library Lower Meeting Room 12.5 at Center 1F96PG17-

CW M 6 6 185 3 3330




Building Level/Floor Location in Building

Measured

Lighting Level

in Footcandles

Fixture

Type

Ballast

Type

No. of

Fixtures

No. of


Energy Use

(Watt

hours/day)

Library Lower Meeting Room 32 at Perimeter 1F72PG17 M 3 3 165 3 1485

Library Lower Meeting Room 11.1 (8:30PM) 1F72T12 M 1 1 72 3 216

Library Lower Staff Room 6F48T12 M 2 12 48 6 3456

Library Both Elevator 8.1 1F34T12 M 2 2 34 24 1632

Library Both Exits 1INC7 NA 13 13 7 24 2184

Library Outside Pole Lights 16.4(8:30PM) HPS400 NA 4 4 400 12 19200

Library Outside Bollard Walk Lights 1CF18 19 19 18 12 4104

Library Outside Front Soffit 1CF18 5 5 18 12 1080

Library Outside Lower Level Entry 1INC40 NA 1 1 40 12 480

Library Outside Lower Level Entry 1CF13 1 1 13 12 156




Lighting Improvement Recommendation Tables

MUNICIPAL

ROCKAWAY TOWNSHIP, NEW JERSEY - LIGHTING REPLACEMENT RECOMMENDATIONS

Existing Renovated

Location

Total

Fixture

Quantity

Hours/

Year

Fixture

Code

Input

watts

Annual

KWh

Hours/

Year

Fixture

Code

Input

watts

Future

kWh/yr

kWh/yr

Savings

Unit

Cost ($)

Entry Lobby 12 2210 1F48T12 59 1,565 2,210 1F32T8 32 849 716

$

131

Main Lobby 6 2210 2F30T12 60 796 2,210 2F17T8 25 332 464

$

131

Main Lobby 12 2210 2F34T12 64 1,697 2,210 2F28T8 60 1,591 106

$

131

Upper Level 4 2210 2F35T12U 70 619 2,210 2F17T8 25 221 398

$

131

Court Ofcs 12 2210 2F40T12 82 2,175 2,210 2F28T8 60 1,591 583

$

131

Stairs 3 3120 2F40T12 82 768 3,120 2F28T8 60 562 206

$

131

Main Ovrhd. 87 2210 3F34T12 102 19,612 2,210 3F28T8 85 16,343 3,269

$

131

Assessor 19 2210 4F34T12 136 5,711 2,210 4F28T8 114 4,787 924

$

131

Muni/Finance 33 2,210 4F34T12 136 9,918 2,210 4F28T8 114 8,314 1,604

$

131

Copy/Postage 6 2,210 2F34T12 64 849 2,210 2F28T8 60 796 53

$

131

Lg. Conference 2 1,560 6F34T12 204 636 1,560 6F28T8 180 562 75

$

131

Police/Sally Prt 5 4380 1F34T12 34 745 4,380 1F28T8 29 635 110

$

131

Police Gym 3 4380 2F34T12 64 841 4,380 2F28T8 60 788 53

$

131




Existing

Renovated

Location

Total

Fixture

Quantity

Hours/

Year

Fixture

Code

Input

watts

Annual

KWh

Hours/

Year

Fixture

Code

Input

watts

Future

kWh/yr

kWh/yr

Savings

Unit

Cost ($)

Mens Cell 2 8760 2F34T12 64 1,121 8,760 2F28T8 60 1,051 70

$

131

Mens Room 1 4380 2F40T12U 80 350 4,380 2F17T8 25 110 241

$

131

PD Corridors 8 8760 2F40T12U 80 5,606 8,760 2F17T8 25 1,752 3,854

$

131

PD Lockers 5 8760 2F40T12U 80 3,504 8,760 2F17T8 25 1,095 2,409

$

131

Detectives 13 2210 3F34T12 102 2,930 2,210 3F28T8 85 2,442 488

$

131

Book/Print 3 4380 3F34T12 102 1,340 4,380 3F28T8 85 1,117 223

$

131

Offices 17 4380 3F34T12 102 7,595 4,380 3F28T8 85 6,329 1,266

$

131

Admin/Dsptch 10 8760 3F34T12 102 8,935 8,760 3F28T8 85 7,446 1,489

$

131

Int. Corridors 16 8760 2F40T12U 80 11,213 8,760 2F17T8 25 3,504 7,709

$

131

PD Rest Rms 5 4380 2F40T12U 80 1,752 4,380 2F17T8 25 548 1,205

$

131

Outdoor Poles 16 4380 HPS400 460 32,237 4,380 HTS8LED 88 6,167 26,070

$

890

TOTALS 300 122,514 68,930 53,584

$

51,444

@ $.16/kWh

$ 8,573.51

SPP

6.00




LIBRARY

Location

Total Fixture

Quantity

Hours/

Year

Fixture

Code

Input

watts

Annual

KWh

Hours/

Year

Fixture

Code

Input

watts

Future

kWh/yr

kWh/yr

Savings

Unit Cost

($)

Gen'l Overhead 80 3692 1F96PG17CW 210 62,026 3,692 2F96T8 HP 150 44,304 17,722

$

250

Gen'l Overhead 20 3692 1F72PG17CW 190 14,030 3,692 2F72T8 HP 130 9,599 4,430

$

250

Childrens Rooms 63 3692 4F34T12 136 31,633 3,692 4F28T8 114 26,516 5,117

$

131

Rest Rooms 4 3692 2F48T12 98 1,447 3,692 2F28T8 60 886 561

$

131

Corridor 1 3692 2F48T12 98 362 3,692 2F28T8 60 222 140

$

131

Offices 7 2340 3F34T12 102 1,671 2,340 3F28T8 85 1,392 278

$

131

Offices 6 2340 4F34T12 136 1,909 2,340 4F28T8 114 1,601 309

$

131

Staff Hall 5 2340 2FB40T12 82 959 2,340 2F17T8 HP 25 293 667

$

131

Staff Lunch 2 1560 6F34T12 204 636 1,560 6F28T8 180 562 75

$

131

Exterior Po le 4 4,380 1HPS400 460 8,059 4,380 1HTS8LED 88 1,542 6,517

$

890

TOTALS 192 122,733 86,915 35,817

@ $.16/kWh

$

5,730.74

Cost of Improvements $

47,585

Simple Payback

8.30 Years




Appendix B: eQUEST model

Local Government Energy Program Energy Audit …...Township of Rockaway SWA, Inc. – Local...

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