Download NYCERDA Energy Audit

ResTech Energy Analysis
For
34 Plaza Street East
Brooklyn, New York 11238
sponsored by
New York State Energy Research & Development Authority
17 Columbia Circle
Albany, New York 12203
prepared by
EME Group
159 West 25th Street
New York, New York 10001
February 4, 2008
TABLE OF CONTENTS
EXECUTIVE SUMMARY ................................................................................................ 1
ENERGY USE & COST HISTORY .................................................................................. 3
BUILDING DESCRIPTION .............................................................................................. 7
A) Architectural .............................................................................................................. 7
B) Mechanical................................................................................................................. 8
C) Electrical .................................................................................................................. 11
RECOMMENDATIONS.................................................................................................. 14
Operation & Maintenance Measures ............................................................................ 14
Energy Efficiency Measures ......................................................................................... 16
EEM #1– Install Condensing DHW Boiler .............................................................. 16
EEM #2 – Install Bi-level Lighting .......................................................................... 17
EEM #3 – Upgrade Common Area Lighting............................................................ 19
EEM #4 – Repair/Replace Failed Steam Traps ........................................................ 20
EEM #5 – Insulate Condensate Tank and Piping ..................................................... 21
EEM #6 – Install Occupancy Sensors....................................................................... 23
EEM #7 – Implement Advanced Metering............................................................... 24
MEASURES IDENTIFIED BUT NOT RECOMMENDED ........................................... 26
APPENDICES
Appendix A: TREAT Output
Appendix B: Funding Opportunities
34 Plaza Street East
EXECUTIVE SUMMARY
The Residential Technical Assistance Program (ResTech) is funded by the New York
State Energy Research and Development Authority (NYSERDA) and provides technical
assistance to residential buildings in an effort to improve the building’s energy efficiency
and reduce operating costs. This report presents the findings of our comprehensive
building energy assessment, which is focused on identifying cost-effective energy
efficiency measures. This report has been completed for 34 Plaza Street East, a 111-unit
cooperative apartment building located in the Prospect Heights section of Brooklyn.
34 Plaza Street uses electricity, natural gas, and no. 2 oil as its energy sources. Energy
cost for the past year totaled $136,545, which represents a 3.4% decrease in total costs
when compared to the year prior. Natural gas is used for space heating and domestic hot
water generation. Gas use for the past year totaled 79,546 therms at a cost of $103,729,
averaging $1.30 per therm. No. 2 oil is occasionally used for space heating, when outdoor
temperatures drop below 20°F. Oil use for the past year totaled 2,502 gallons at a cost of
$4,981, averaging $1.99 per gallon. Electric use for the past year totaled 157,974 kWh at
a cost of $27,835, averaging $0.18 per kWh.
Space heating is provided by a relatively new steam boiler with a dual fuel burner that
predominantly uses natural gas. Domestic hot water is generated in an immersion coil in
the heating boiler. Cooling is the responsibility of individual residents.
Our study investigated cost-effective opportunities to reduce both electric and fuel oil
usage. EME has identified a number of energy efficiency measures (EEMs) and
operation & maintenance (O&M) procedures which, if implemented, would reduce
energy and annual operating costs. In summary, we recommend upgrading common area
lighting and controls, the installation of a summer hot water boiler, the installation of
timers on bathroom exhaust fans, and the implementation of advanced metering.
The analysis involved detailed field surveys, interviews with building operating
personnel, and computer modeling. Computer model analysis was used to assist in
calculating energy savings. We used NYSERDA-approved TREAT building modeling
software V3.0.1.9 that uses the building envelope (exterior walls, windows and roof),
electrical, lighting and mechanical systems (heating, cooling and domestic hot water), the
building internal loads and operating schedules to calculate the estimated energy
consumption of the building and proposed EEMs.
NYSERDA▪ResTech
Page 1
34 Plaza Street East
The following table shows the recommended energy efficiency measures.
Energy Efficiency Measure
Install Condensing DHW Heater
Install Bi-level Lighting
Upgrade Common Area Lighting
Replace/ Repair Steam Traps
Insulate Condensate Tank and Piping
Install Occupancy Sensor in Laundry Room
Implement Advanced Metering
Total
Installed
Cost
$50,000
$15,463
$11,238
$8,250
$1,331
$200
$100,500
$186,982
Savings
mmBtu
320
0
-6
227
14
0
555
kWh
0
8,017
10,874
0
0
1,130
20,020
kW
2.2
2.2
$
$4,414
$1,459
$1,890
$3,123
$199
$206
$24,902
$36,192
Payback
(yrs)
SIR
11.3
10.6
5.9
2.6
6.7
1.0
4.0
5.2
1.1
1.1
1.7
3.2
1.3
8.8
2.1
1.8
Notes:
1. Savings to Investment Ratio (SIR) is a standard economic tool used to evaluate
energy and maintenance savings for energy efficiency measures. SIRs greater
than 1 indicate that the measure will save the building energy and maintenance
costs over the expected life of the measure based on a 3.0% discount rate.
2. The energy efficiency measures listed in the table above are based on an
interactive whole building approach.
3. The individual measure life is based on ASHRAE’s determination of expected
service lives.
The identified EEMs can be funded through the NYSERDA Energy $mart Loan Fund,
which provides interest rate reduction on loans for energy efficient projects and
renewable technologies. The Energy $mart Loan Fund buys down the interest by 6.5%
on loans for energy efficiency improvements and renewable technologies from
participating lenders in Con Edison’s service territory. Loans can be used for prequalified measures, custom improvements and to help borrowers recoup their costs for
technical assistance. Interest rate reductions are available for loans up to a maximum of
$5,000 per dwelling unit or $600,000.
NYSERDA▪ResTech
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34 Plaza Street East
ENERGY USE & COST HISTORY
34 Plaza Street uses #2 fuel oil, electricity and natural gas as its energy sources. Last
year energy costs totaled $136,545. Number 2 fuel oil, provided by Amerada Hess, had
total deliveries of 2,502 gallons at a total cost of $4,981. Electricity for common areas,
provided by Con Edison, totaled 157,974 kWh at a total cost of $27,835 averaging $0.176
per kWh. Natural gas, provided by Con Edison, used for heating and hot water, totaled
79,546 therms at a total cost of $103,729, averaging $1.30 per therm.
Converting the fuel oil consumption to units of Btus1 and normalizing for building gross
area shows the building normalized heating index of 57,471 Btu/sq ft. Natural gas is the
largest cost incurred by the building for energy use. However, when normalized to
equivalent units of Btus, electricity costs $51.63/mmBtu, while natural gas costs
$13.04/mmBtu. This shows that electricity is more nearly four times as expensive as
natural gas per unit of energy. This is clearly illustrated in the two charts below. The left
chart shows a breakdown of energy use, showing electricity using 6% of total energy.
The right chart, a cost breakdown, shows that electricity accounts for 20% of costs.
Energy Use by Fuel, 2006 - 2007
Total Use: 8,843 mmBtu
Electricity
6%
No. 2 Oil
4%
Natural Gas
90%
Energy Cost by Fuel, 2006 - 2007
Total Cost: $136,545
No. 2 Oil
4%
Electricity
20%
Natural Gas
76%
Comparing utility consumption and costs for common areas from 2005 to 2007 reveals
the following:
Fuel
#2 Oil (Gallons)
Electricity (kWh)
Natural Gas (Therms)
Total
2005
Consumption
Cost
4,500
$9,216
176,177
$32,850
67,748
$99,307
$141,373
2006
Consumption
Cost
2,502
$4,981
157,974
$27,835
79,546
$103,729
$136,545
Difference
Consumption
Cost
-44.4%
-45.9%
-10.3%
-15.3%
17.4%
4.5%
10.5%
-3.4%
1
1 kWh = 3,413 Btu
1 gallon #2 oil = 139,400 Btu
1 therm = 100,000 Btu
NYSERDA▪ResTech
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34 Plaza Street East
The following tables illustrate the monthly energy consumption and costs of oil,
electricity and natural gas for the past year.
Natural Gas
Space Heating and DHW Generation
No. of Apartments:
Building Area:
Fuel Type:
Fuel Heating Content:
Heating Degree Days:
Period
From
To
6/28/2007
7/30/2007
5/30/2007
6/28/2007
4/30/2007
5/30/2007
3/29/2007
4/30/2007
2/28/2007
3/29/2007
1/30/2007
2/28/2007
12/29/2006
1/30/2007
11/29/2006 12/29/2006
10/27/2006 11/29/2006
9/28/2006 10/27/2006
8/29/2006
9/28/2006
7/28/2006
8/29/2006
Total
120
153,860 ft2
Natural Gas
100,000 BTU/therm
4,460 HDD
therms
Cost
mmBtu
$/therm
$/mmBtu
1,852
1,816
2,684
9,886
11,157
14,266
13,040
10,294
7,487
3,653
1,766
1,645
79,546
$2,710
$2,724
$3,916
$13,580
$15,253
$17,855
$16,019
$13,211
$9,869
$3,626
$2,523
$2,444
$103,729
185.20
181.60
268.40
988.60
1115.70
1426.60
1304.00
1029.40
748.70
365.30
176.60
164.50
7,955
185.2
181.6
268.4
988.6
1115.7
1426.6
1304
1029.4
748.7
365.3
176.6
164.5
$1.304
14.63
15.00
14.59
13.74
13.67
12.52
12.28
12.83
13.18
9.93
14.29
14.86
$13.04
$1.304
$13.04
663
66.3
$864
51,700
21,237
2,124
58,309
5,831
486
37,897
8.5
1,307,377
Average Fuel Cost:
Average Consumption:
Base Load Consumption:
Heating Consumption:
Normalized Heating Consumption:
Normalized Heating Energy Factor:
Heating Energy Factor:
NYSERDA▪ResTech
/ therms
/ mmBtu
therms / apt
mmBtu/Apt.
/ Apt.
Btu / Sq. Ft.
therms
mmBtu
therms
mmBtu
therms / apt
Btu / Sq. Ft.
Btu/Sq.Ft./HDD
Btu/ HDD
Page 4
34 Plaza Street East
Electricity
Electric Usage
No. of Apartments:
120
153,860 ft2
Electricity
3,413 BTU/kWh
CDD
Building Area:
Fuel Type:
Fuel Heating Content:
Cooling Degree Days
Period
From
7/9/2007
6/7/2007
5/8/2007
4/9/2007
3/9/2007
2/7/2007
1/8/2007
12/7/2006
11/3/2006
10/5/2006
9/6/2006
8/7/2006
To
8/7/2007
7/9/2007
6/7/2007
5/8/2007
4/9/2007
3/9/2007
2/7/2007
1/8/2007
12/7/2006
11/3/2006
10/5/2006
9/6/2006
Total
kWh
kW
Cost
mmBtu
$/kWh
$/mmBtu
11,153
12,006
11,001
11,950
14,386
15,188
15,095
14,927
16,016
12,521
11,467
12,264
157,974
22
21
23
26
26
28
28
26
29
25
29
22
29
$2,259
$2,504
$2,218
$2,090
$2,574
$2,244
$2,577
$2,483
$2,369
$2,021
$2,283
$2,213
$27,835
38
41
38
41
49
52
52
51
55
43
39
42
539
$0.203
$0.209
$0.202
$0.175
$0.179
$0.148
$0.171
$0.166
$0.148
$0.161
$0.199
$0.180
$0.176
$59.34
$61.10
$59.07
$51.24
$52.43
$43.28
$50.03
$48.75
$43.34
$47.29
$58.33
$52.87
$51.63
$0.176 / kWh
$51.63 / mmBtu
1,316 kWh / Apt
$232 / Apt
Average Electric Cost:
Average Consumption:
1.03 kWh / ft2
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34 Plaza Street East
No. 2 Oil
Space Heating
No. of Apartments:
Building Area:
Fuel Type:
Fuel Heating Content:
Heating Degree Days:
Period
From
To
7/9/2007
8/7/2007
6/7/2007
7/9/2007
5/8/2007
6/7/2007
4/9/2007
5/8/2007
3/9/2007
4/9/2007
2/7/2007
3/9/2007
1/8/2007
2/7/2007
12/7/2006
1/8/2007
11/3/2006 12/7/2006
10/5/2006 11/3/2006
9/6/2006
10/5/2006
8/7/2006
9/6/2006
Total
120
153,860 ft2
#2 Fuel Oil
139,400 Btu / Gal
4,460 HDD
Gallons
Cost
mmBtu
$/gallon
$/mmBtu
0
0
0
0
0
0
2,502
0
0
0
0
0
2,502
$0
$0
$0
$0
$0
$0
$4,981
$0
$0
$0
$0
$0
$4,981
0
0
0
0
0
0
349
0
0
0
0
0
349
$1.99
$1.99
$14.28
$14.28
$1.991
$14.28
21
2.9
$42
316
Average Fuel Cost:
Average Consumption:
NYSERDA▪ResTech
/ Gal
/ mmBtu
Gals / Apt.
mmBtu/Apt.
/Apt.
Btu / ft.2
Page 6
34 Plaza Street East
BUILDING DESCRIPTION
A) Architectural
34 Plaza Street is a residential cooperative apartment complex located in the Prospect
Heights section of Brooklyn. The co-op is comprised 111 residential apartments and nine
doctor’s offices. The building is twelve stories high, with two levels below grade at the
entrance. The building is equipped with a below grade parking garage. Each residential
floor contains ten apartments with the exception of the first floor, which contains one
apartment and all nine doctor’s offices, as well as the building lobby.
Apartments consist of a range of studio, one, two, and three bedroom units. The
following shows a breakdown of apartments by type.
•
•
•
•
Studio – 11 apartments
One bedroom – 67 apartments
Two bedroom – 25 apartments
Three bedroom – 8 apartments
Building fenestration consists of aluminum framed, double hung, double pane units that
were installed between ten and fifteen years ago and appear to be in fair condition. The
building is steel and concrete construction with brick façade. On each floor, two
apartments contain terraces.
The roof is built up membrane with gravel ballast. It was replaced approximately ten
years ago. Building personnel was unsure if the roof was insulated. The roof is assessable
to residents. The roof appears in good condition.
Roof Lounge Area (gravel ballast can be seen in foreground)
NYSERDA▪ResTech
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34 Plaza Street East
B) Mechanical
Space Heating
Apartments are heated by low-pressure steam (LPS) generated by an A.L. Eastmond
model FST-250 steam boiler located in the boiler room in the basement. The boiler is
equipped with an Industrial Combustion dual fuel gas/oil burner that is capable of
burning either natural gas or number 2 oil. However, gas is the predominate source of
heating energy. Natural gas is purchased based on a temperature-based interruptible rate.
When the outdoor temperature falls below 20°F, the building is required to burn fuel oil.
The boiler, manufactured in 1994, has a rated capacity of 10,500 MBH (1,000 Btu/hr).
Steam Boiler
Steam is distributed to apartment radiators through a variable vacuum (vari-vac) system.
Vari-vac systems vary the pressure in the condensate return system by varying the
vacuum at which the steam condenses. For example, a vacuum pressure of 25 inches
mercury (“HG) corresponds to a steam temperature of 133ºF. Conversely, a vacuum
pressure of 0 in Hg corresponds to a steam temperature of 212ºF.
NYSERDA▪ResTech
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34 Plaza Street East
Vari-vac Pump Set
The Vari-vac vacuum pressure is adjusted indirectly based on outside air temperature.
Space heating is typically provided when the outside air temperature is below 55°F. A
control panel monitors the heat balancer, which measures the rate of heat flow, and
outdoor sensor to operate the system. The heating system was not operating at the time of
our site visit.
Heating System Controls
Residents can regulate heating to the individual spaces by the use of installed shut-off
valves on the radiators. Condensate returns to the boiler room and is collected in a 400
gallon condensate tank that is currently not insulated, after which it returns to the boiler
by way of two condensate pumps.
NYSERDA▪ResTech
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34 Plaza Street East
Typical Apartment Radiator
Domestic Hot Water
Domestic hot water is generated in an immersion coil in the heating boiler. Hot water
leaving the boiler is then tempered with a mixing valve. The valve was set at 130°F at the
time of our visit. A 1/12 horsepower circulating pump, manufactured by Bell and Gosset,
maintains continuous flow through the system to ensure hot water is readily available at
apartments. The current domestic hot water system does not use a storage tank. Small
lengths of piping observed during our visit were lacking insulation.
Mixing Valve Controls
Piping Lacking Insulation
Low-flow water fixtures were not present in apartments observed, as many residents opt
to install custom fixtures. However, we would recommend that the co-op board advocate
the installation of water conservation devices and the use of EnergyStar® appliances to
conserve water and energy used to generate hot water.
Ventilation
Mechanical ventilation for bathrooms, kitchens, and common corridors is provided by 11
exhaust fans of various sizes located on the roof. The boiler room is ventilated by a
through-the-wall exhaust fan that is automatically activated when the boiler is in
NYSERDA▪ResTech
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34 Plaza Street East
operation. The parking garage is also mechanically ventilated by one exhaust fan on its
roof, which is activated for one hour each day. The following table lists all exhaust fans
in the building.
C) Electrical
Power Distribution
Apartments are individually metered for electrical use. Residential units are supplied
electricity under Con Edison rate EL-1 Residential. Common area in the building is
supplied electricity under Con Edison rate EL-9 General Large.
Elevators
The building has two passenger elevators that serve all floors, including the two basement
levels. The elevator machine room, which is located on the roof, houses the motors and
controls. Both elevators have new 15 horsepower Reuland hoist motors and Tricon relay
controls. All elevator equipment appeared to be functioning well and in good condition
at the time of our visit. The following pictures illustrate a typical elevator motor and
controls.
Reuland Elevator Motor
Tricon Elevator Controls
Lighting
Lighting throughout the building corridors is predominately 52-watt compact fluorescent
fixtures containing two 26-watt plug-in compact fluorescent lamps (CFLs) each. All
corridor fixtures are equipped with emergency batteries. Basement and mechanical space
lighting consists of two, four, and eight foot long T12 fluorescent fixtures with magnetic
NYSERDA▪ResTech
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34 Plaza Street East
ballasts. Each trash chute room contains one 7-watt screw-in CFL that is operated by a
door switch, activating when the door is opened and deactivating when it closes. This
provides for the most efficient operation possible, allowing the light to be on only when
necessary. Both stairwells are equipped with one fixture containing two 13-watt plug-in
CFLs per landing (two per floor). The parking garage is lit by one and two-lamp four foot
fluorescent fixtures with T12 lamps and magnetic ballasts. Exterior lighting consists of a
range of fixtures including plug-in CFLs, high pressure sodium and metal halide lamps,
and incandescent MR16 lamps. All exterior lighting is activated by timers to operate only
during nighttime hours.
The following table lists all common area lighting in the building.
Location
Lobby
Apartment Corridors
Trash Cute Rooms
Exterior
Garden
Inground Lighting
Parking Garage
Garage Corridor
Staircase A
Staircase B
Basement Level
Laundry Room
Elevator Room
Elevator
Storage Room
Boiler Room
Type of Fixture
Watts/Fixture
PL13
2PL26
7W CFL Exit Sign
7W CFL
70W Metal Halide
2PL13
175W HPS
PL13
PL13
MR16
F40T12
2F40T12
F20T12
2PL13
2PL13
2F32T12
2F20T12
F20T12
2F96T12
2F40T12
2F32T8
2F96T8
PL18
2F40T12
4F40T12
13
52
7
7
70
26
175
13
13
20
57
94
28
26
26
60
56
28
173
94
60
109
18
94
188
NYSERDA▪ResTech
No. of
Fixture
20
60
24
12
2
4
11
4
5
20
15
13
4
24
24
2
4
2
3
1
2
2
4
6
3
Total
Wattage
260
3,120
168
84
140
104
1,925
52
65
400
855
1,222
112
624
624
120
224
56
519
94
120
218
72
564
564
Page 12
34 Plaza Street East
Location
Work Shop
Gas Meter Room
Electric Meter Room
Ground Level
Trash Room
Bike Storage Room
Type of Fixture
Watts/Fixture
4F96T12
2F40T12
F20T12
75w incandescent
2PL13
2F40T12
2F40T12
F40T12
F40T12
346
94
26
75
13
94
94
57
57
No. of
Fixture
2
3
2
1
3
3
1
2
2
290
Total
Wattage
692
282
52
75
39
282
94
114
114
14,050
Appliances
Residents are responsible for the purchase and maintenance of their own appliances. The
building has a laundry room located in the basement. The laundry room is available 8:00
am to 11:00pm. Laundry equipment consists of four large Speed Queen commercial
dryers rated at 144 mbh and two smaller Speed Queen commercial gas dryers rated at 64
mbh. The laundry room also contains six washing machines; four of them are front
loading Wascomat model W60 washers and two are top loading Speed Queen
commercial washers. An outside vendor, Coinmach Industries, owns and maintains all
laundry equipment.
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34 Plaza Street East
RECOMMENDATIONS
Operation & Maintenance Measures
Very often, significant savings can result from making small changes in the way a facility
is maintained. Such Operation & Maintenance (O&M) measures are usually low-cost or no
cost.
•
•
•
•
•
•
•
•
Repair leaks immediately. Any leaking faucet or valve should be repaired as soon as
it is noticed. This will not only save water but will also prevent water damage to
surrounding areas.
Encourage the use of low-flow showerheads and faucet aerators. The use of low-flow
fixtures not only reduces water consumption, but reduces energy required to generate
domestic hot water.
Encourage the use of low-flow toilets (1.6 gallons per flush). Low-flow toilets use
more than 50% less water per flush than standard toilets (3.5 gallons per flush).
Ensure that any future repairs made to hot water piping be reinsulated.
Establish a boiler room log to monitor stack temperature, maintenance procedures and
other operating procedures.
Ensure test ports are available in boiler flue so that steady state efficiency (SSE) tests
can be preformed quarterly. We recommend the boiler be cleaned and tuned when
combustion efficiency drops below 80%.
Building laundry rooms are not equipped with a range of equipment, some of which
is energy star rated. Ensure that laundry vendor installs only EnergyStar® rated
equipment in the future.
Ensure that the garage is properly ventilated in accordance with building code.
EnergyStar® appliances are the same or better than standard products, only they use less
energy. To earn the EnergyStar® rating, they must meet strict energy efficiency criteria
set by the United States Environmental Protection Agency (EPA) or the United States
Department of Energy (DOE). Since they use less energy, these products realize energy
cost savings and help protect the environment by causing fewer harmful emissions from
power plants. A listing of manufacturers and models of EnergyStar® qualified products
is available at http://www.energystar.gov. A listing of EnergyStar® retailers in New York
State can be obtained from the New York Energy $mart website at
http://www.getenergysmart.org.
The apartment owners should be encouraged to use energy efficient compact fluorescent
lighting fixtures and lamps. We recommend that EnergyStar® labeled products be
considered when there is a need to purchase or replace appliances or household
equipment. EnergyStar® products can reduce an apartment’s annual energy cost by 30%.
Energy efficient refrigerators provide considerable savings since they operate 24 hours a
day throughout the year. If space is appropriate a side mounted freezer with through the
door ice refrigerator can save as much as $286. With current energy prices, having energy
NYSERDA▪ResTech
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34 Plaza Street East
star appliances has never been a more worthwhile investment, payback periods of 1-2
years are the typical.
The following table provides and example of the typical savings achieved thru the
installation of an EnergyStar® appliance. In this case Energy Star® refrigerators are
compared:
Refrigerator
Type
Volume
3
(ft. )
Top Mount
Freezer With
Thru The
Door Ice
Top Mount
Freezer
without Thru
The Door Ice
Side Mount
Freezer With
Thru The
Door Ice
Side Mount
Freezer
without Thru
The Door Ice
15
Energy Consumption
(kWh/yr)
NonEnergy
EnergyStar
Star Ref.
Ref.
528
449
Energy Cost
($/yr)
NonEnergy
EnergyStar
Star
Ref.
Ref.
$116
$99
Savings
79
Energy
Cost
($/yr)
$17
Life
Cycle
Savings
$226
Energy
(kWh/yr)
18
565
481
$124
$106
84
$18
$240
23
623
529
$137
$116
94
$21
$269
15
442
375
$97
$83
67
$15
$192
18
477
406
$105
$89
71
$16
$203
23
532
452
$117
$99
80
$18
$229
15
577
490
$127
$108
87
$19
$249
18
613
521
$135
$115
92
$20
$263
23
670
570
$147
$125
100
$22
$286
15
590
502
$130
$110
88
$19
$252
18
608
517
$134
$114
91
$20
$260
23
636
541
$140
$119
95
$21
$272
NYSERDA▪ResTech
Page 15
34 Plaza Street East
Energy Efficiency Measures
EEM #1– Install Condensing DHW Boiler
Domestic hot water is generated by an immersion coil in the heating boiler. This system
causes the large boiler to cycle on and off during the summer for a relatively small load.
When a large boiler is operating under a partial load, efficiency is reduced.
Comparatively, a separate boiler sized to hot water demands, operated during non-heating
months, will operate with a much higher efficiency.
We recommend the installation of a natural gas fired condensing hot water boiler for use
during non-heating months. Condensing boilers use exhaust to preheat incoming water.
This reduces heat lost through the stack, increasing overall efficiency. Condensing boilers
can reach efficiencies up to 95%. This measure would entail the addition of a drain for
condensed exhaust gas.
In addition to an increase in efficiency for domestic hot water generation, this measure
would allow the heating boiler to be completely shut down during summer months,
significantly increasing its life span. This should also be considered when evaluating the
cost and savings of this measure.
Energy Savings
The energy savings for this measure have been estimated using TREAT V3.0.19 building
modeling software based on the abovementioned assumptions.
Estimated Installed Cost: $50,000
Annual Energy Savings: 320 mmBtu
Annual Cost Savings: $4,414
Simple Payback ($50,000 / $4,414/yr): 11.3 years
Savings to Investment Ratio: 1.1
NYSERDA▪ResTech
Page 16
34 Plaza Street East
EEM #2 – Install Bi-level Lighting
Stairwells and exits are required by the Building Code of the City of New York to be
provided with illumination levels of at least 2 foot candles by artificial lighting
continuously, during occupancy. However, this is a relatively low level of lighting and
higher lighting levels are typically found. Therefore the periods when these spaces are not
occupied represent an opportunity to reduce lighting levels and electric consumption
while maintaining code requirements.
NYSERDA, working with Lamar Lighting, developed a bi-level light fixture as an energy
efficiency measure that incorporates occupancy-controlled lighting strategies using multilevel ballasts and ultrasonic sensors. The use of high/low levels, as opposed to on/off
operation, has the advantage of prolonging lamp life if frequent cycling is expected.
These fixtures combine all the necessary components including the lamps, ballasts and
sensor into a single package that can replace the existing fixture on a one-to-one basis.
The complete line of products including the Occu-smart bi-level line can be viewed at
http://www.lamarlighting.com.
Our replacement recommendations are based on maintaining the original design
illumination levels. The majority of savings will be realized during the reduced periods
of illumination. Please note that these are general recommendations that do not constitute
a final lighting design. Prior to implementing this measure, ensure that the new lighting
levels are appropriate for your facility and meet applicable code requirements.
Stairwell lighting consists of 2PL13 fluorescent fixtures. We recommend replacing the
existing fluorescent fixtures in the corridors with occupancy controlled bi-level 2PL13
fluorescent fixtures. These fixtures are equipped with bi-level ballasts and ultrasonic
motion sensors, with 15-minute delay, that will maintain the fixtures at full load during
high use periods and reduce power draw during low use periods.
Energy Savings
The energy savings for this measure have been estimated using the spreadsheet on the
following page and based on the above stated assumptions.
Estimated Installed Cost: $ 15,463
Annual Energy Savings: 8,017 kWh
Annual Cost Savings: $ 1,459
Simple Pay Back ($ 15,463 / $ 1,459/year): 10.6 years
Savings to Investment Ratio: 1.1
NYSERDA▪ResTech
Page 17
34 Plaza Street East
Common Area Lighting Upgrade:
Cost of Electricity:
0.182
$/kWh
Existing
Fixture Location
Staircase A
Staircase B
Fixt.
Type
Watts/
Fixt.
# of
Fixt.
2PL13
2PL13
26
26
24
24
34 Plaza Street
Bi-Level Characteristics:
Hi level on time:
8%
Low level power:
20%
Bi-level factor:
Recommended
BiHours/
Watts/
# of
Fixture Type
level?
day
Fixt.
Fixt.
(Y/N)
24
2PL13 Bi-level
26
24
Y
24
2PL13 Bi-level
26
24
Y
Fixture Unit Costs:
2PL13 Bi-level Fixture w/ Emergency Battery:
2PL13 Bi-level Fixture:
Cost includes materials, labor, and demolition.
NYSERDA▪ResTech
27%
Savings
Hours/
day
6.4
6.4
$347
$297
Page 18
Fixt.
Retr.
Cost
$347
$297
Demand
Reduction
Savings
kWh/year
Savings
$/year
Cost
Pay
Back
0.00
0.00
0.00
4,009
4,009
8,017
$730
$730
$1,459
$8,332
$7,132
$15,463
11.4
9.8
10.6
Savings to Investment Ratio (SIR):
1.13
34 Plaza Street East
EEM #3 – Upgrade Common Area Lighting
Common area lighting sometimes employs inefficient technologies such as incandescent
lamps, standard fluorescent lamps, and magnetic ballasts. Incandescent lamps should be
replaced, whenever possible, with compact fluorescent fixtures. Where existing lighting
is already fluorescent, additional savings are sometimes achievable through the
installation of low wattage lamps and/or electronic ballasts. Electronic ballasts regulate
current through electronic circuitry rather than a magnetic core and cycle current 400
times faster than magnetic ballasts, which increases the light output of a fluorescent lamp.
New lighting will also require less maintenance, as electronic ballasts have a longer life
expectancy than their magnetic counterparts. This measure involves the replacement of
T12 fixtures with magnetic ballasts in the following areas:
•
•
•
•
•
•
•
Boiler Room
Laundry Room
Basement Corridors
Parking Garage
Storage Rooms
Workshop
Compactor Room
Energy Savings
The energy savings for this measure have been estimated using TREAT V3.0.19 building
modeling software based on the following assumptions.
Existing Fixture
2F40T12
4F40T12
4F96T12
F96T12
F40T12
F20T12
Watts /
Fixture
94
188
346
173
57
28
New Fixture
2F32T8 (25W)
4F32T8
4F96T8
F96T8
F32T8 (25W)
F17T8
Watts /
Fixture
60
120
218
109
30
18
Quantity
27
3
2
3
19
6
Cost /
Fixture
$189
$213
$302
$208
$176
$176
Estimated Installed Cost: $11,238
Annual Energy Savings: 10,874 kWh
Annual Cost Savings: $1,890
Simple Payback ($11,238 / $1,890/yr): 5.9 Years
Savings to Investment Ratio: 1.7
NYSERDA▪ResTech
Page 19
34 Plaza Street East
EEM #4 – Repair/Replace Failed Steam Traps
Properly functioning steam traps are imperative for efficient, effective operation of any
two-pipe steam heating system. There are a variety of steam trap designs, including
thermostatic, float and thermostatic (F&T) and inverted bucket, which are intended for
specific applications. Each radiator contains a thermostatic steam trap. The function of a
steam trap is to contain steam within the supply side of the distribution system or
radiator, separating it from the return or condensate piping. After the steam has given off
enough heat to condense, the steam trap opens and allows the condensate to flow into the
return system. Steam passing through into the return piping not only wastes energy but
can cause condensate pumps to fail and other equipment problems.
Steam traps require annual maintenance to assure they are functioning correctly.
Therefore replacing steam traps is considered a necessary and on-going maintenance
item. The energy savings for this measure are based on repairing or replacing 15% of the
steam traps in the building. There is one steam trap on each apartment radiator as well as
at the base of building risers that require testing and replacement if found to be leaking.
Energy and Cost Savings
The energy savings for this measure have been estimated based on the above stated
assumptions using the spreadsheet on the following page.
Estimated Installed Cost: $8,250
Annual Energy Savings: 227 mmBtu
Annual Cost Savings: $3,123
Simple Payback ($8,250 / $3,123/yr): 2.6 Years
Savings to Investment Ratio: 3.2
NYSERDA▪ResTech
Page 20
34 Plaza Street East
Pipe
Diameter
Trap
Quantity
Steam
Pressure
Trap
Orifice
Size
Orifice
Area (sq.
in.)
Discharge
Coefficient
Percent
Failed
Open
Quantity
Failed
Open
Blow-by
Steam
(lb/hr/trap)
Type of Trap
A
B
C
E
F=pi/4xE2
G
H
J=BXH
K
Note 1
Note 2
Thermostatic
0.5
345
15
0.25
0.0491
0.69
15%
52
%
Time
Trap
Active
Blow-by
Steam
(Mlb/yr)
%
Energy
Loss
Boiler
Eff.(%)
Fuel Savings
(mmBtu/yr)
Cost Savings
($/yr)
N=(JxKxLxM)
P
Q
R=(DxNxP)/Q/10^3
S=Rx$/mmBtu)
Note 3
M
Note
4
Note 5
Note 6
27.810
25%
1,079
15%
85%
216
$2,979
F&T
1
10
15
0.25
0.0491
0.69
15%
2
27.810
50%
63
25%
85%
2
$29
F&T
1.5
10
15
0.5
0.1963
0.69
15%
2
111.238
50%
250
25%
85%
8
$115
227
$3,123
Total
NYSERDA▪ResTech
Page 21
34 Plaza Street East
EEM #5 – Insulate Condensate Tank and Piping
The 400 gallon condensate tank in the boiler room is currently not insulated. This allows
a significant amount of heat to escape into the room, which is then removed by the
exhaust fan. The heat that leaves through the sides of the tank lowers the temperature of
the condensate returning to the boiler, requiring the boiler to work harder to generate
steam again. Insulating this tank will contain more heat and reduce heat lost to outdoors.
In addition to the condensate tank, some domestic hot water piping observed was lacking
insulation, resulting in heat loss in the boiler room before ever reaching faucets and
showerheads. This also causes the boiler to work harder to deliver hot water, as a portion
of the heat added is lost before the point of use.
We recommend insulating the tank and piping with 1” thick fiberglass insulation. Also,
building personnel should ensure that any repairs or modifications to heating equipment
in the future include insulation. The following table shows the details of the measure.
Description
Length
(L.F)
Installation
Cost
400 Gal. Condensate Tank
4" Domestic Hot Water Line
Total
7.5
4
12
$1,294
$37
$1,331
Savings per Year
mmBtu
Cost
11.30
$156
3.14
$43
14.44
$199
Payback
Years
8.31
0.86
6.69
Energy and Cost Savings
The energy savings for this measure have been estimated using the table above base on
the on the above stated assumptions.
Estimated Installed Cost: $1,331
Annual Energy Savings: 14 mmBtu
Annual Cost Savings: $199
Simple Payback ($1,331 / $199/yr): 6.7 Years
Savings to Investment Ratio: 1.3
NYSERDA▪ResTech
Page 22
34 Plaza Street East
EEM #6 – Install Occupancy Sensors
Many areas within a building require lighting intermittently throughout the day; yet have
the potential for the lights to be left on most of the time, such as the central laundry room.
In other instances, lights may be left on after the workday. These circumstances warrant
occupancy based lighting controls. Most basement rooms are inaccessible unless opened
by building personnel. Consequently we anticipate that these rooms will not be suitable
candidates for occupancy sensors.
There are three general types of occupancy controls: Passive infrared (PIR) that relies
on line-of-sight coverage that senses the heat emitted by occupants in motion from that of
the background space, Ultrasonic that uses the Doppler principle by emitting ultrasonic
waves through the space to detect occupants, and Dual Technology that combines both
PIR and ultrasonic technologies to detect occupancy.
We recommend the installation of PIR sensors. Generally, ultrasonic sensors are best
suited for spaces where the sensor has a clear line of sight of the occupants while infrared
are used in spaces where there are obstacles. We do not recommend installation of
occupancy sensors in mechanical/electrical equipment rooms, i.e., electric meter rooms
and elevator machine rooms. All types of sensors can have adjustable dwell times where
the lighting circuit is energized for a period of time after occupancy is no longer detected
to limit frequent on-off operation.
Energy Savings
Estimated Installed Cost: $200
Estimated Annual Energy Savings: 1,130 kWh
Estimated Annual Cost Savings: $206
Simple Payback: 1.0 Years
Savings to Investment Ratio: 8.8
NYSERDA▪ResTech
Page 23
34 Plaza Street East
EEM #7 – Implement Advanced Metering
The building is currently directly metered. In a direct metered building, residents each
have their own utility meter and account, as does the building. In some cases, savings can
result from switching to advanced metering, or master metering. In a master metered
building, the utility supplies energy to the entire building, typically through one utilityowned meter and the building is responsible for the energy consumption costs incurred at
the building.
Common area electricity is provided under the Con Edison EL-9 General Large rate and
apartment electricity is provided under the EL-1 Residential rate. This measure
investigates the benefits of advanced metering on the main electric service. Con Edison’s
residential rate is usually between $0.22 and $0.24 per kilowatt hour. The commercial
rate, however, is usually between $0.16 and $0.18 per kilowatt hour. By purchasing all
electricity through one “master” meter and then sending it to each apartment through
“sub” meters, all electricity can be purchased at the commercial rate.
The existing Con Edison meters would be replaced with building-owned meters that
would be measured and maintained by a metering vendor. The metering vendor would
measure and bill shareholders on a monthly basis. Savings from this measure would
accrue directly to residents.
Competitive pricing for utility bulk rates from Energy Service Companies (ESCOs) could
also be negotiated; or the buildings would be able to participate in less expensive timesensitive pricing in order to reduce electricity costs.
Energy cost savings for this measure was calculated using the Comprehensive Energy
Management (CEM) tool on the following page.
Description
Qty
Equipment cost
House Meter
Electrical/permitting cost
120
1
1
Unit
Cost
$650
$2,500
$20,000
Total
Total
Cost
$78,000
$2,500
$20,000
$100,500
Estimated Installation Cost: $100,500
Estimated Annual Cost Savings: $24,902
Simple Payback ($100,500 / $24,902/yr): 4.0 years
Savings to Investment Ratio: 2.1
NYSERDA▪ResTech
Page 24
34 Plaza Street East
34 Plaza Street East
Input Data
Monthly Usage
Monthly kW
Number of Apartments
Meter Reading Cost Per Apartment per Month
Common Area load as percent of building load
Total Monthly Apartment Usage
Monthly Individual Apartment Usage
Monthly Common Area Usage
Apr-07
37,166
73.9
111
$3.00
32%
25,216
227
11,950
Taxes not included
May-07
43,394
76.6
111
$3.00
33%
29,008
261
14,386
Jun-07
44,233
73.9
111
$3.00
34%
29,045
262
15,188
Jul-07
43,400
66.8
111
$3.00
35%
28,305
255
15,095
Aug-07
46,932
83.2
111
$3.00
32%
32,005
288
14,927
Sep-07
50,815
70.2
111
$3.00
32%
34,799
314
16,016
Oct-07
38,643
80.0
111
$3.00
32%
26,122
235
12,521
Nov-07
40,531
70.6
111
$3.00
28%
29,064
262
11,467
Dec-07
59,717
94.7
111
$3.00
21%
47,453
428
12,264
Jan-07
67,985
115.2
111
$3.00
16%
56,832
512
11,153
Feb-07
60,754
106.6
111
$3.00
20%
48,748
439
12,006
Mar-07
45,374
95.8
111
$3.00
24%
34,373
310
11,001
Submetering
Total Cost with Submetering, SC8
$5,610
$6,745
$6,831
$7,344
$7,730
$8,658
$7,991
$8,923
$10,094
$13,313
$6,872
$6,573
Direct Metering
Total Apt. Direct Metering, Cost SC1
Total Common Area Direct Metering Cost, SC2
Total Direct Metering Cost
$5,240
$1,707
$6,947
$6,355
$2,448
$8,803
$6,257
$2,740
$8,998
$6,644
$2,893
$9,537
$6,993
$2,778
$9,771
$8,074
$3,220
$11,294
$6,844
$2,606
$9,450
$8,041
$2,441
$10,482
$10,263
$2,073
$12,336
$13,769
$2,191
$15,960
$8,197
$1,542
$9,739
$6,685
$1,583
$8,268
-$1,337
-$2,058
-$2,167
-$2,193
-$2,041
-$2,636
-$1,459
-$1,559
-$2,242
-$2,647
-$2,867
-$1,695
Results
Submetering - Direct Metering
Yearly Submetering Cost
Yearly Direct Metering Cost
Yearly Savings (Direct - Sub)
$96,683
$121,585
$24,902
NYSERDA▪ResTech
Page 25
34 Plaza Street East
MEASURES IDENTIFIED BUT NOT RECOMMENDED
Cogeneration
This measure would investigate the feasibility of installing a packaged cogeneration
system using a reciprocating IC engine to be interconnected and operate in parallel with
the utility grid, recovering waste heat for hot water production. The hot water would be
used to supplement heating and domestic hot water generation. Reciprocating gas engines
are similar to automotive engines. The engines have proven to be a reliable technology
and used in many cogeneration applications. Waste heat from the engine exhaust and
jacket water cooling will be recovered for the generation of hot water through customized
heat exchangers. The electricity generated can be fed into the building’s power grid,
reducing the electricity provided by Con Edison.
Cogeneration is economically feasible when there is a match between the thermal output
of the cogeneration plant and the thermal requirement of the building. Multifamily
buildings are a challenge to an economically viable use of cogeneration. This is because,
in many cases, the building’s thermal base load, typically the DHW load is not sufficient
to justify cogeneration. This is the case at 34 Plaza Street East.
NYSERDA▪ResTech
Page 26
34 Plaza Street East
Exhaust Air Heat Recovery
Ventilation is the introduction of fresh air for the purposes of diluting stale air. Natural
ventilation consists of infiltration in and out of the building. Mechanical ventilation
consists of the forced movement of air through supply or exhaust fans. Kitchen exhaust
fans are required to operate at all times in order to maintain acceptable indoor air quality.
These fans constantly expel conditioned air to the atmosphere. Implementing exhaust air
heat recovery can recover energy that would otherwise be wasted.
This measure investigates the feasibility of recovering waste heat from kitchen exhaust
air to be used as a heat source to precondition outdoor air. The existing kitchen exhaust
fans would be removed; existing curbs are capped and coupled to insulated ductwork that
is ducted to the HRV. The HRV unit is equipped with heat transfer media, typical an
enthalpy wheel, that exchanges heat between the exhaust and incoming air streams. This
measure is not feasible because rigging and aggregating ductwork is cost prohibitive.
NYSERDA▪ResTech
Page 27
APPENDIX A
TREAT OUTPUT
BUILDING DESCRIPTION
Project: 34 Plaza Street East
For: 34 Plaza Owners Corp
By: EME Group
Date: 2/4/2008
General Project Information:
Building Address: 34 Plaza Street East
Brooklyn , NY 11238
Year Built: 1953
Number of Occupants: 207
House Type: Attached
Contact Person: Gary Glabman
Phone: 212-213-0123
Directions:
General Building Information:
Long term weather site: NEW_YORK_CITY NY
Daily weather site: NEW_YORK_CITY NY
Shielding Class: 3 - Moderate shielding: thick hedge or one neighboring house within 30ft
Number of Stories: 12
Number of Units: 120
Wall Color: Medium
Roof Color: Medium
Total Heated Area: 127860 sq.ft
Spaces in the Building
Space Type
Whole Building
Space Name
Building
Ceiling
Height
(Ft)
Floor
Area
(sq.ft)
8
127860
Page: 1
Eleva Conditioned Used Persons
tion
(either
(Hours/
(ft)
heated or
Day)
cooled)
0
Yes
16
207
Unheated Low ACH Basement
Unheated Low ACH Parking Garage
8
16
16000
10000
0
0
No
No
4
2
10
30
Exterior Walls/Floors/Ceilings/Roofs
Space Name
Construction
Exposure Length Height
(Ft)
or
width
(Ft)
South
104.50
120
Eleva Tilt Over
tion
hang
(Ft)
Depth
(Ft)
0
90 NA
Building
0.75" Plaster/Lath, 1" Air, 8"
Block, 4" Brick, R-4
Building
0.75" Plaster/Lath, 1" Air, 8"
Block, 4" Brick, R-4
West
137
120
0
90
NA
Building
0.75" Plaster/Lath, 1" Air, 8"
Block, 4" Brick, R-4
East
120
120
0
90
NA
Building
0.75" Plaster/Lath, 1" Air, 8"
Block, 4" Brick, R-4
North
107
120
0
90
NA
Building
Gyp Bd, 2x6 16" OC, 0.75"
Wood, Slate, R-6
NA
10655
1
8
0
NA
Walls/Ceilings/Floors Adjacent to Unheated Spaces
Space Name
Building
Construction
Length Height
(Ft)
(Ft)
0.5" Wood, 2x6 16" OC, 0.5" 10655
1
Fiberglass, 5" Air, Felt, R-6
Adjacent To
Basement
Elevation
(Ft)
0
Walls/Floors Adjacent to Ground
Space Name
Construction
Length
(Ft)
Width or
Height (Ft)
Type
Parking Garage
8" Concrete, R-1
200
50
Slab-on-grade
Basement
Carpet w/Pad, 6" Concrete, R-3
10655
1
Slab below grade
Basement
0.75" Plaster/Lath, 1" Air, 8"
Block, 4" Brick, R-4
468.5
16
Wall
Page: 2
Windows
Glazing
Frame
Width Height Height Qty
Ft
Ft
above
floor
3.20 4.80
2.70 36
Location
Exposure
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
Building
North
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
3.20
3.80
2.70
12
Building
North
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.80
4.80
2.70
168
Building
North
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Fixed
4.60
4.80
2.70
12
Building
North
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Fixed
3.80
4.80
2.70
12
Building
North
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Fixed
3.80
4.80
2.70
24
Building
South
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.40
4.80
2.70
60
Building
South
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Fixed
2.80
4.80
2.70
48
Building
South
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.50
6.90
2.70
24
Building
South
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.80
5
4.80
48
Building
South
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Fixed
3.80
4.80
2.70
24
Building
West
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.40
4.80
2.70
48
Building
West
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.80
4.80
2.70
72
Building
West
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
3.20
4.80
2.70
60
Building
West
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.20
4.80
2.70
48
Building
West
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
3.10
4.80
2.70
24
Building
West
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Fixed
3.80
4.80
2.70
24
Building
East
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.80
4.80
2.70
48
Building
East
Page: 3
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.80
4.80
2.70
72
Building
East
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Fixed
3.80
4.80
2.70
24
Building
East
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
2.40
4.80
2.70
36
Building
East
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
3.20
4.80
2.70
48
Building
East
1/4" single acrylic, clear
Aluminum w/o thermal break,
Operable
2.20
4.80
2.70
72
Building
East
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
3.10
4.80
2.70
36
Building
East
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
3.20
4.80
2.70
36
Building
East
3/4" double glass, 0.5"
air space, clear
Aluminum w/o thermal break,
Operable
1.20
2.70
2.70
12
Building
East
1/2" double glass,
0.25" argon space, e =
Wood/vinyl, Fixed
3
5
2.70
1
Building
East
Infiltration
Total Infiltration of Heated Area : ACH = 0.6
Infiltration of Unheated Spaces:
Unheated Space Name
Infiltration
ACH
Basement
0.2
Parking Garage
0.2
Page: 4
Central Heating System :
Primary Heat Plant
Boiler, Steam
Natural gas
10500000
85
Basement
1994
Yes
210
190
209
15
50
Heat Plant Type
Fuel
Input capacity, Btu/Hr
Annual Efficiency, %
Location
Year
Is there Reset Control
Design Supply Temperature, F
Design Return Temperature, F
Minimum Supply Temperature, F
Design Outdoor Temperature, F
Shutdown Outdoor Temperature,
Primary Distribution
Supply
Return
0
0
2702.1
2702.1
Insulation R-Value
Total Area of Piping, SqFt
Percent of Total Pipe area in each space:
Space Name
Building
Basement
Parking Garage
% Supply
46
50
4
% Return
46
50
4
Estimated total distribution efficiency: 86%
Thermostats:
Is
Spaces Served by
Heating
Cooling
Thermothe thermostat
Is
Temperature (F) Hours Is
Temperature (F) Hours
stat
Area
per
Area
per
programOccuUnOccuUnHeatday
Coolday
mable
pied occupied
pied occupied
ed
unoccu- ed
unoccuperiod Period
period Period
pied
pied
Yes
Whole Building :
Yes
68
60
8
No
NA
NA
NA
Building
Page: 5
Mechanical Ventilation:
Kitchen, Bathroom, and Apt. Ex
Fan Name:
Hours per Day Fan is On: 24
Heat Recovery Effectiveness: 0
Ventilation Rate:
Space Name
Building
Total for the fan
Ventilation Rate
CFM
ACH
9025
0.53
9025
0.53
Domestic Hot Water
Hot Water Heater:
Type
Fuel
Rated Volume, gallons
Rated Input Capacity, Btu/Hr
Design Supply Water Temperature, F
Additional Insulation R- value
Location
Number of Identical Water Heaters
Solar Fraction of Energy Input
Year
Thermal (Recovery) Efficiency, %
Energy Factor (heating season)
Energy Factor (non-heating season)
Space-heating boiler w/tankless coil
Natural gas
1
10500000
130
0.0
Basement
1
0.00
1994
88
0.8
0.68
Hot Water Demand:
1.00
No
Usage Adjustment Multiplier
Are Dishes Handwashed
Fixture Details:
Regular Shower Flow Rate, GPM
Low-flow Shower Heads Max. Rated Flow, GPM
Fraction of Showers with Low-flow Shower Heads
Regular Faucet Flow Rate, GPM
Low-flow Faucet Aerator Max. Rated Flow, GPM
Fraction of Faucets with Low Flow Aerators
Page: 6
3.40
2.50
0.15
3.40
2.20
0.15
Hot Water Piping:
Total Piping Area, Sq.Ft
Insulation R-value
Recirculating System
Recirculate When Water Temperature F Falls Below
Hours per Day Recirculation is On
Circulating Pump HP
1103
4
Yes
130
24.00
1/12
Percent of piping running through each space:
Space Name
% Piping
100
0
0
Basement
Building
Parking Garage
Lighting
Description
Watts per
Fixture
7W CFL Exit Sign
7
24
24
Building
2PL26 - Apartment Corridors
52
24
60
Building
PL13 - Lobby
13
24
20
Building
7W CFL - Trash Cute Rooms
7
1
12
Building
70W Metal Halide - Exterior
70
12
2
Exterior lighting
2PL13 - Exterior
26
12
4
Exterior lighting
175W HPS - Exterior
175
12
11
Exterior lighting
PL13 - Garden Lighting
13
12
5
Exterior lighting
MR16 - Inground Lighting
20
12
20
Exterior lighting
F40T12 - Parking Garage
57
24
15
Parking Garage
Page: 7
Daily
Count
Hours
On
(Hr/Day)
Location
2F10T12 - Parking Garage
94
24
13
Parking Garage
F20T12 - Garage Corridor
28
24
4
Building
2Pl13 - Staircase A
13
24
24
Building
2PL13 - Staircase B
13
24
24
Building
2F32T12 - Basement Level
60
24
2
Basement
2F20T12 - Basement Level
56
24
4
Basement
F20T12 - Basement Level
28
24
2
Basement
2F96T12 - Laundry Room
173
12
3
Basement
2F40T12 - Laundry Room
94
12
1
Basement
2F32T8 - Elevator Room
60
1
2
Building
2F96T8 - Elevator Room
109
1
2
Building
PL18 - Elevator
18
24
4
Building
2F40T12 - Storage Room
94
1
6
Basement
4F40T12 - Boiler Room
188
4
3
Basement
4F96t12 - Boiler Room
346
4
2
Basement
2F40T12 - Work Shop
94
4
3
Basement
F20T12 - Gas Meter Room
26
1
2
Basement
75W Incandescent - Gas Meter Room
75
1
1
Basement
2PL13 - Electric Meter Room
13
1
3
Basement
2F40T12 - Ground Level
94
24
3
Building
Page: 8
2F40T12 - Compactor Room
94
4
1
Basement
F40T12 - Compactor Room
57
4
2
Basement
F40T12 - Bike Storage Room
57
1
2
Basement
Appliances
Appliance Name Electri- Electri- Second Annual Second Hot
city
city
Fuel Second Fuel Water
Usage, Demand (Not
Fuel
Units Usage
(kWh/
Watts includ- Usage
(gal/
year)
ing Hot
year)
Water
fuel)
Location
% Quan
Heat tity
Loss
to
Space
Water Pumps
55703
8478
None
NA
NA
0
Basement
100
2
Sump Pumps
1857
1272
None
NA
NA
0
Basement
100
2
Conensate Pump
1347
424
None
NA
NA
0
Basement
100
1
Recircilation
Pump
464
71
None
NA
NA
0
Basement
100
1
Fuel Oil Pump
182
682
None
NA
NA
0
Basement
100
1
Boiler Rm. Exh.
Fan
1993
227
None
NA
NA
0
Basement
0
1
Building Exh. Fans
8967
0
None
NA
NA
0
Building
0
1
Parking Garage
Exh. Fan
332
910
None
NA
NA
0
Parking Garage
0
1
Page: 9
MODEL ENERGY REPORT FOR BASE BUILDING
34 Plaza Street East
For: 34 Plaza Owners Corp
By: EME Group
Date: 2/4/2008
Total Annual Energy Bill by Category
Heating, $ 65,096
Hot Water, $ 25,337
Appliances, $ 23,370
Lighting, $ 14,480
Other, $ 99
51%
0%
11%
20%
18%
Annual Heating/Cooling Bill by Category
33%
Infiltration, $ 21,403
Window s, $ 14,876
Surfaces, Doors, $ 14,381
Mechanical Ventilation, $ 11,997
Ground, $ 2,439
23%
4%
18%
22%
Note: Due to rounding, the sum of percentages may not be equal to 100.
Page: 10
PERCENTAGE IMPROVEMENT REPORT
Project Name: 34 Plaza Street East
For: 34 Plaza Owners Corp
By: EME Group
Date: 2/4/2008
Package Name
Annual Energy Use of
All Fuels, MMBtu
Percentage
Base Building
7274.03
100.0
All Improvements
6923.07
95.2
Page: 11
IMPROVEMENT PACKAGES
34 Plaza Street East
For: 34 Plaza Owners Corp
By: EME Group
Date: 2/4/2008
Evaluated Packages:
Package Name
All Improvements
Cost
$
61,238
Annual
Annual Payback Cashflow
Savings, Savings, $ years
$/year
MMBtu
350.96
6,304
9.71
912
SIR
1.23
Package Description:
1.
All Improvements
Improvement Name
Cost
($)
Annual Annual PaybackCashflow Improve- SIR
Savings Savings (years) ($/year) ment Life
in
MMBtu
($)
(Years) Package
Replace 4F40T12
630
0.60
49
13.0
-7
15
0.93
Install Gas DHW Heater
50,000
320.33
4,414
11.3
12
15
1.06
Replace F20T12
900
0.80
82
11.0
3
10
0.78
Replace 4F96T12
520
0.76
61
8.5
15
15
1.41
Replace 2F40T12
5,076
14.77
904
5.6
457
15
2.14
Replace F40T12
3,572
11.96
657
5.4
343
15
2.21
Replace 2F96T12
540
1.74
137
3.9
90
15
3.06
61,238
350.96
6,304
9.71
912
N/A
1.23
Total for Package
Non-Energy Benefits:
1.
Replace 4F40T12: Reduce maintenance, reduce replacement cost (fluorescent bulbs last
10,000 hours whereas incandescent bulbs typically last less than 1,000 hours).
Page: 12
2.
Install Gas DHW Heater: Increase value of building.
3.
Replace F20T12: Reduce maintenance, reduce replacement cost (fluorescent bulbs last 10,000
hours whereas incandescent bulbs typically last less than 1,000 hours).
4.
Replace 4F96T12: Reduce maintenance, reduce replacement cost (fluorescent bulbs last
10,000 hours whereas incandescent bulbs typically last less than 1,000 hours).
5.
Replace 2F40T12: Reduce maintenance, reduce replacement cost (fluorescent bulbs last
10,000 hours whereas incandescent bulbs typically last less than 1,000 hours).
6.
Replace F40T12: Reduce maintenance, reduce replacement cost (fluorescent bulbs last 10,000
hours whereas incandescent bulbs typically last less than 1,000 hours).
7.
Replace 2F96T12: Reduce maintenance, reduce replacement cost (fluorescent bulbs last
10,000 hours whereas incandescent bulbs typically last less than 1,000 hours).
Page: 13
APPENDIX B
FUNDING OPPORTUNITIES
The New York State Energy Research & Development Authority (NYSERDA) sponsors
programs directed at improving energy efficiency, reducing environmental pollution, as
well as research and development. We have identified the following programs that may
be applicable:
The NYSERDA Energy $mart Loan Fund provides an interest rate reduction on loans
for energy efficiency improvement projects and renewable technologies. The Energy
$mart Loan Fund currently buys down the interest by 6.5% on loans from participating
lenders in Con Edison’s service territory. Loans can be used for pre-qualified measures
and custom improvements and to help borrowers recoup their costs for technical
assistance. Interest rate reductions are available for loans up to a maximum of $5,000.
For example, if the building secures an 8% loan from one of the participating lenders,
NYSERDA will pay 6.5% of the interest; therefore, the building’s effective interest rate
would be 1.5%. The interest rate reduction is only available for the energy savings
measures identified in this report.
Following is a listing of the participating regional and local lenders that provide
multifamily Energy $mart loans for the New York City metropolitan area:
Amalgamated Bank
15 Union Square West
New York
NY
10003
PHONE: 800-332-2693 x8608
FAX: 212-462-3719
Contact: Mr. Leonard Maisel
Title: Senior Vice President
Website: www.amalgamatedbank.com
e-mail: [email protected]
Multifamily
Apex Pryor Securities, a division of Rice Financial Products Company
17 State Street, 40th Floor
New York
NY
10004
PHONE: 212-908-9200
FAX: 212-908-9299
Contact: Mr. Michael Murray
Title:
Website:
e-mail: [email protected]
Banc of America Leasing & Capital, LLC
2059 Northlake Parkway
Tucker
GA
30084-5399
PHONE: 908-709-5462
FAX: 704-264-2554
Contact: Mr. James Thoma
Title: Senior Vice President
Website: www.bankofamerica.com
e-mail: [email protected]
Banc of America Leasing & Capital, LLC
25 N. Maple Avenue, 2nd Floor
Ridgewood
NJ
07450
PHONE: 201-493-2477
FAX: 704-264-2573
Contact: Ms. Lisa Douma
Title: Operations Analyst
Website: www.bankofamerica.com
e-mail: [email protected]
Bank of America
10 Fountain Plaza
Buffalo
NY
14202
PHONE: 716-847-4266
FAX: 716-847-4409
Contact: Ms. Barbara Maze
Title:
Website:
e-mail: [email protected]
Berkshire Bank
PO Box 1308
Pittsfield
MA
01202
PHONE: 413-236-3285
FAX: 413-528-2898
Contact: Mr. Richard Kelly
Title:
Website: www.berkshirebank.com
e-mail: [email protected]
Carver Federal Savings Bank
75 West 125th Street
New York
NY
10027
PHONE: 212-360-8887
FAX: 212-426-6155
Contact: Ms. Melissa Green
Title: Vice President Commercial Lending
Website:
e-mail: [email protected]
Commercial
Chase Equipment Leasing, Inc
12 Corporate Woods Boulevard, Floor 104
Albany
NY
PHONE: 518-433-2518
FAX: 518-433-0295
Contact: Mr. Michael Moss
Title:
Website:
e-mail: [email protected]
Citibank NA
12203
450 Mamaroneck Avenue
Harrison
NY
10528
PHONE: 914-899-7721
FAX: 914-899-7132
Contact: Mr. Henry Auffarth
Title: Senior Vice President
Website: www.citibank.com
e-mail: [email protected]
Commercial
Citicorp Leasing, Inc.
9201 4th Avenue
Brooklyn
NY
11209
PHONE: 718-748-4917
FAX: 718-567-9416
Contact: Ms. Concetta LoPresti-Mazzella
Title:
Website:
e-mail: [email protected]
Citimortgage Asset Management, Inc.
450 Mamaroneck Avenue
Harrison
NY
10528
PHONE: 914-899-7356
FAX: 914-899-7766
Contact: Ms. Diane Boday
Title:
Website:
e-mail: [email protected]
Commerce Commercial Leasing, LLC
2059 Springdale Road
Cherry Hill
NJ
08003
PHONE: 856-470-5213
FAX: 845-533-1022
Contact: Mr. Anthony Sasso
Title: President
Website:
e-mail: [email protected]
Community Capital Bank
111 Livingston Street, 4th Floor
Brooklyn
NY
11201
PHONE: 718-802-1212
FAX: 718-243-0312
Contact: Ms. Gina Bolden-Rivera
Title: Senior Vice President
Website:
e-mail: [email protected]
Credit, Inc.
555 Bergen Avenue, 3rd Floor
Bronx
NY
10455
PHONE: 718-732-7537
FAX: 718-292-4625
Contact: Mr. Richard Ross
Title: President
Website:
e-mail: [email protected]
Commercial
First Niagara Bank
1 North Main Street
Cortland
NY
13045
PHONE: 607-758-2250
FAX: 607-758-2285
Contact: Ms. Julie Ryan
Title:
Website: www.fnfg.com
e-mail: [email protected]
Commercial
HSBC Bank USA
One HSBC Center
Buffalo
NY
14240
PHONE: 716-841-5743
FAX: 716-841-1058
Contact: Ms.Kristin Ruggiero
Title:
Website:
e-mail: [email protected]
Hudson Valley Bank
21 Scarsdale Road
Yonkers
NY
10707
PHONE: 914-768-6898
FAX: 914-768-6861
Contact: Mr. Michael Weisberg
Title:
Website: www.hudsonvalleybank.com
e-mail: [email protected]
Commercial
Hudson Valley Bank Leasing Corp.
21 Scarsdale Road
Yonkers
NY
10707
PHONE: 914-768-6898 x21
FAX: 914-768-6861
Contact: Mr. Michael Weisberg
Title:
Website: www.hudsonvalleybank.com
e-mail: [email protected]
Commercial
Independence Community Bank
195 Montague Street
Brooklyn
NY
PHONE: 718-722-5604
FAX: 718-722-5688
Contact: Mr. Timothy Gannon
Title: Sr. Vice President
Website:
e-mail: [email protected]
Commercial
11201
Israel Discount Bank of New York
511 5th Avenue
New York
NY
10017
PHONE: 212-551-8155
FAX: 212-551-8717
Contact: Mr. Marc Cooper
Title: Vice President
Website:
e-mail: [email protected]
Commercial
Jackson National Life Insurance Company
225 W. Wackes Drive, Suite 1200
Chicago
IL
60606
PHONE: 312-634-2563
FAX: 312-634-0834
Contact: Mr. Mark Lyons
Title:
Website:
e-mail: [email protected]
Commercial
Key Bank N.A.
50 Fountain Plaza, 16th Floor
Buffalo
NY
14202
PHONE: 716-847-7772
FAX: 716-847-2380
Contact: Ms. Sharon Lochocki
Title: Senior Vice President
Website:
e-mail: [email protected]
Commercial
M&T Bank
465 Main Street LC-5
Buffalo
NY
14203
PHONE: 716-848-4752
FAX: 716-848-4766
Contact: Mr. Adam T. Douglas
Title: Product Manager
Website: www.mandtbank.com
e-mail: [email protected]
Commercial
M&T Credit Services, LLC
255 East Avenue
Rochester
NY
14604
PHONE: 585-258-8426
FAX: 585-258-8267
Contact: Mr. Christopher J. Oliver
Title: Assistant Vice President
Website:
e-mail: [email protected]
Capital
Neighborhood Housing Services of NYC, Inc.
307 West 36th Street, 12th Floor
New York
NY
10018
PHONE: 212-519-2530
FAX: 212-727-8171
Contact: Mr. Gunnel Rydstrom
Title:
Website: www.nhsnyc.org
e-mail: [email protected]
New York Business Development Corporation
50 Beaver Street
Albany
NY
12207
PHONE: 518-463-2268
FAX: 518-463-0240
Contact: Mr. David Terrenzio
Title: Senior Vice President
Website: www.nybdc.com
e-mail: [email protected]
Commercial
North Fork Bank
275 Broadhollow Road
Melville
NY
11747
PHONE: 631-844-1062
FAX: 631-844-9776
Contact: Mr. Peter J. Dumelle
Title: Vice President
Website:
e-mail: [email protected]
Commercial
SunTrust Leasing Corporation
300 E. Joppa Road, Suite 700
Towson
MD
21286
PHONE: 410-307-6661
FAX: 410-307-6620
Contact: Mr. Gary Jones
Title: Vice President
Website:
e-mail: [email protected]
The Community Preservation Corporation
28 East 28th Street
New York
NY
10016-7943
PHONE: 212-869-5300 x514
FAX: 212-683-0694
Contact: Mr. Jack Greene
Title: Senior Vice President
Website:
e-mail: [email protected]
If the co-op wishes to pursue some of the recommendations identified in the report, the
Energy $mart Loan Fund is a means of low interest financing. The application process
is outlined as follows:
1
Complete the Application along with your Lender’s standard loan application.
2
3
The Lender completes the Application and submits the following together in
one package to NYSERDA for approval:
___
The Application;
___ Supporting technical documentation (provide cover page of
NYSERDA Technical Audit performed);
___
Your lender’s commitment letter to you.
Your Lender’s own loan application with credit and financial information
should not be submitted to NYSERDA.
Upon completion of the project, you must complete the Certificate of Project
Completion, certifying to NYSERDA that the Eligible Improvements were
installed as set forth in the Application.
NYSERDA’s new Multifamily Performance Program addresses the needs o the
multifamily sector and works to improve the energy efficiency, health, safety and security
of residential buildings. The program has two components: New Construction and
Existing Buildings. The Existing Buildings Component provides capital incentives to
buildings that achieve a minimum 20% energy reduction based on NYSERDA’s
Benchmarking Tool. The incentives available for market-rate housing are as follows:
PAYMENT #1
Base Incentive (for small buildings up to 30 units)
$2,500 / project
Base Incentive (for small buildings 31 to 100 units)
$5,000 / project
Incremental Incentive
$10 / unit over 100 units
Incentive payable upon receipt of signed contract between the Participant and Partner and
submission of a draft proposed Energy Reduction Plan, which must include documentation that
the building has been benchmarked using the NYSERDA Benchmarking Tool.
$300 / unit
PAYMENT #2
Incentive payable at 50% construction completion, based upon a successful interim inspection.
$300 / unit
PAYMENT #3
Incentive payable at substantial completion, based upon a successful post-construction inspection
and performance test (s) (as applicable).
PAYMENT #4
Initial Benchmark Score
Performance Target
Per Unit
$200
<= 25 points
20%
$175
>=26, but <= 50 points
20%
$150
>=51, but <= 75 points
20%
$125
>75 points
20%
For every 1% exceeding the Performance Target:
$20
All benchmarking scores will be calculated using the NYSERDA Benchmarking Tool. Incentive
payable only if the project achieves the Performance Target as specified above for the building’s
initial benchmark score. Proof of energy savings will be determine by the Benchmarking Tool as
an actual reduction in the building’s normalized source energy factor as determined by actual
consumption data for the building. Such determination must made no sooner than one (1) year or
later than 18 months following completion of the Energy Reduction Plan.
ADVANCED METERING EQUIPMENT
Resident Education and Regulatory Assistance
$2,000 / project
Advanced Submeter Installation
$150 / unit
Advanced Master Meter Installation
$1,500 / unit
Resident Education and Regulatory Assistance incentive is payable upon receipt of NY Public
Service Commissioning (PSC) approval letter for Submeter installation and invoice for
regulatory assistance and training service, including breakdown of number of training sessions
and attendance. If training sessions are conducted by in-house staff, submit labor and materials
cost along with training session details (# of sessions and attendance). Incentive will not exceed
100% of cost for services. Advanced Submeter and Master Meter incentives are payable upon
receipt of metering contractor invoice for advanced meter installation. Advanced metering
system must be functional and may be subject to inspection. See Energy Reduction Plan
Guidelines for specifications of a qualified advanced submetering system. Incentives will not
exceed 50% of the total metering installation cost.
COMBINED HEAT AND POWER (CHP) SYSTEMS
CHP System Installation
$750 / kW
CHP System incentive is payable per the terms and conditions of NYSERDA’s CHP Systems
Manual
BUILDING OPERATOR TRAINING & CERTIFICATION
Building Operator Training & Certification
$1,000 / attendee
Training & Certification incentive is payable upon receipt of training completion certificate for
each attendee, including training dates, location and instructor name. Incentive will not exceed
75% of the costs of Affordable Housing projects and 50% of the costs for Market Rate projects.
PHOTOVOLTAIC (PV) SYSTEMS
PV System up to 25 kW
$4.00 / watt
Building Integrated PV System up to 25 kW
$4.50 / watt
PV Systems between 26 – 50 kW
$3.00 / watt over 25 kW
Building Integrated PV System between 26 – 50 kW
$3.50 / watt over 25 kW
PV System incentives will be payable per the terms and conditions of NYSERDA’s New York
Energy $mart Photovoltaic (PV) Incentive Program (50 kW and smaller) and are subject to
change.
Buildings that have participated in NYSERDA ResTech Program will be eligible to
participate to the new Multifamily Performance Program.