Energy use reduced 27% over a baseline New York Energy
Conservation Code
(1999)
Annual energy
savings of $330,200
(1999 rates)
Emissions reduced:
NOx – 3,690 pounds,
SO2 – 10,890
pounds, CO2 – 1,007
tons
Ozone depletion
reduced
Peak power usage
reduced

Daylight harvesting for most spaces
Light shelves with reflective surfaces, for daylight penetration
Crenellated, self-
shading curtain wall;
glass is insulated, low-
emissivity, with fritted
glass pattern
Displacement
ventilation
High-performance
lighting with
occupancy controls
Demand-based
ventilation for
courtrooms and jury
deliberation rooms,
controlled by CO2
sensors
Engine driven, gas-
fired chiller, variable
frequency drives, and
high-efficiency
motors/pumps

Energy use reduced – 33% over a baseline NYS Energy
Conservation Code
Electric energy
reduced use – 24%
from lighting systems
plus 14% in related
chiller down-sizing
Annual energy
savings of $94,000
(1998 rates)
Emissions reduced:
CO2 – by 506
tons/year (38%),
NOx by 1,529
pounds, SO2 by
1,988 pounds
Payback – 7.6
years simple payback
of energy conserving
measures
Ozone depletion
reduced
Systems-operations
integrated

Daylighting of
occupied spaces
High-performance
lighting, with daylight
and occupancy
controls
Light-colored
reflective materials
Replacement of
historic windows with
high-performance,
argon gas filled,
insulating, low-e
glazing
Existing envelope
improved with foam-
in-place insulation –
increased R value and
elimination of thermal
bridging
Modular chillers
Con Edison steam
for heating
Variable-air-
volume system with
variable speed drives
Demand-based
ventilation controlled
by CO2 sensor
Heat recovery from
ventilation air and
steam condensate
Commissioning of
systems

Energy reduction
of 39% over
ASHRAE 90.1-1999
compliant baseline
Annual energy
savings of $6,573
(2005 rates)
Emissions reduction
– 60 pounds NOx; 38
tons CO2
Peak load
reduction – 11 kW
Payback – 16.5
years simple payback
of energy conserving
measures
Renewable energy
– photovoltaic panel,
16 kW

Geothermal heat
pumps
Daylighting for all
occupied spaces, with
daylight and
occupancy controls
High-performance
lighting
Light shelves for
sun control
Operable windows
High-performance
glass
Demand ventilation
controlled by CO2
sensors
High-efficiency
variable-air-volume
system, fans and pump
motors
Photovoltaic panels
Commissioning of
all systems

Energy use reduced
– 15% over a New
York Energy
Conservation Code
baseline
Annual energy
savings of $71,090
(2006 rates)
Payback – 4.4
years simple payback
of energy conserving
measures
Ozone depletion
reduced System-
operations integrated

Daylighting for
occupied spaces
High-performance
lighting
Envelope improved
with insulation,
insulated metal panels
and high-performance
glass
Concrete
construction – thermal
mass
High-efficiency fans
and pump motors
Two-stage steam
absorption chillers
Commissioning of
systems

Energy use less
than baseline New
York State Energy
Conservation Code
Ozone depletion
reduced
System-operations
integrated

Daylighting for all
regularly occupied
spaces
Light shelves for
sun control and sun
penetration deep into
the building
High-performance
lighting with
occupancy controls
Compact building
massing
Operable windows
Envelope improved
with insulation and
high-performance
glass
Energy Star®
appliances
Commissioning of
all systems

Energy use
reduced 41% over a
baseline NYS
Energy Conservation
Code for the new
wing
Annual energy
savings of over
$60,000 ($45,400
for the new wing and
~ $15,000 for the
existing building)
Emissions reduced
Payback – 10
years simple
payback of energy
conserving measures
for the new wing
System-
operations integrated

Extensive daylighting
for exhibition and staff
spaces
High-performance
lighting, daylight
dimming, occupancy
sensors
Envelope improved
with insulation and
high-performance
glass
Temperature
stratification in exhibit
hall
Warmest zone
controls for the VAV
system
BMS controls for
the new and existing
mechanical equipment
Demand-based
ventilation in
permanent exhibit
spaces
High-efficiency
variable-air-volume
system, fans, pump
motors
New efficient
chiller/ controls/
economizer for
existing building

Energy use reduced
– 20% over the
existing baseline
Annual energy
savings of $58,300
(2002 rates)
Payback – 2.1
years simple payback
of energy conserving
measures
Comfort for reptiles
and visitors
Cleaner burning
fuel
System-operations
integrated

Heat recovery from
exhibit exhaust to
preheat ventilation air
Heating of exhibits
with radiant-heated
“rocks”
Daylighting for
keeper-occupied
spaces and selected
exhibits
High-performance
lighting – ambient and
exhibit. Metal halide
source used in exhibits
where possible. Low-
voltage halogen used
when incandescent
required by animals.
Controls – dual
switching and timers
Envelope improved
with high-performance
glass, and with
insulation at
replacement roof
Replacement of
burners on existing
boilers – gas with oil
back-up
Premium efficiency
fans and pump motors
Commissioning of
systems

Fossil fuel use
reduced
Energy use reduced
– 33% over a baseline
NYS Energy
Conservation Code
1991
Annual energy
savings of $9,400
(2002 rates)
Payback – 11
years simple payback
of energy conserving
measures
Ozone depletion
reduced
System-operations
integrated

Geothermal heat
pumps, open loop
water-to-water
Daylighting for all
regularly occupied
spaces, using
windows, skylights,
light shelves, fritted
glass curtain wall
High-performance
lighting, daylight
dimming, occupancy
controls
Natural ventilation
with skylight louvers
and operable windows
BMS system with
remote monitoring
Terra cotta
rainscreen panel
system provides
breathable exterior
wall
High-efficiency
multi-zone variable-
air-volume system and
controls
Commissioning of
systems
Stairs inviting and
centrally located to
encourage use

Energy use reduced
– 57% over a baseline
ASHRAE 90.1-1999
Annual energy
savings of $140,000
(2003 rates);
emissions reduced
Payback – 6.3
years simple payback
of energy conserving
measures
Renewable energy
offset energy cost
Fossil fuel use
reduced; ozone
depletion reduced

Geothermal heat
pump system with six
standing column wells
Daylighting for
exhibits and public
areas
Dynamic skylights –
Ethylene
Tetraflouroethylene
(ETFE) technology
Fuel cell
Sophisticated heat
recovery protocol,
prioritizing use of
waste heat from
condensers and fuel
cell, steam from zoo’s
co-gen plant
High-performance
lighting
Envelope improved
with insulation and
high-performance
glass
Demand-based
ventilation controlled
by CO2 sensors
High-efficiency
variable-air-volume
system, fans and pump
motors
Comprehensive
commissioning of
systems
Toleration of larger
swings in maintained
temperature

Energy use reduced
65% over a baseline
ASHRAE 90.1-1999
Lighting energy use
reduced 85-90% over
a baseline
ASHRAE/IESNA
90.1-2001
Annual energy savings of $61,700 (2005 rates)
Saving 34,300
therms/year of gas and
243,700 kWh/year of
electricity
Payback – 6.2
years simple payback
of energy conserving
measures
Ozone depletion
reduced
System operations
integrated

Extensive
daylighting, with roof
monitors, clerestories,
view windows
High-performance
lighting, dimming and
occupancy controls,
timers
Light shelves, fins,
overhangs, diffused
glass for sun control
Natural ventilation
w/ demand fan assist
Envelope improved
with insulation and
high-performance
glass
Radiant floor
heating in shops and
warehouse
Demand-based
ventilation controlled
by CO2 sensors
High-efficiency
variable-air-volume
system, fans and pump
motors
Energy Star®
appliances
Expanded
commissioning of
systems

Energy use reduced
minimum 20% over a
baseline ASHRAE
90.1-1999
Emissions reduced
Peak energy load
reduced
Photovoltaics offset
energy cost 1.5%
Ozone depletion
reduced
System-operations
integrated

Geothermal heat
pump open loop
system with two
supply/two discharge
wells, each 345 feet
deep
Daylighting and
high-performance
lighting, with daylight
dimming and
occupancy controls
Envelope improved
with insulation and
high-performance
glass
Demand-based
ventilation controlled
by CO2 sensors
Building
management system
with digital monitoring
controls
Variable frequency
drives, heat
exchangers, maximum
zone control
Photovoltaic panels
Expanded
commissioning of
systems

Energy use reduced
– 8.33% over a
baseline ASHRAE
90.1-1999
Annual savings of
$8,000 (2005 rates)
Emissions reduced
– 67.2 pounds NOx,
44.8 pounds SOx,
and 47 tons CO2
Ozone depletion
reduced
System-operations
integrated

Envelope improved
with insulation and
high-performance
glass
Demand-based
ventilation controlled
by CO2 sensors
High-efficiency
variable-air-volume
system, fans and pump
motors
Heat recovery
Extended
commissioning of
systems

Energy use reduced
– 30% over
ASHRAE 90.1-1999
baseline
Fossil fuel use
reduced
Ozone depletion
reduced
System-operations
integrate

Radiant heating and
cooling in floor
Daylighting for
reading areas, offices,
and public areas, using
a variety of types and
screening techniques
High-performance
lighting with daylight
and occupancy
controls
Envelope improved
with insulation and
high-performance
glass
Demand-based
ventilation controlled
by CO2 sensors
High-efficiency
variable-air-volume
system, fans, and
pump motors
Heat recovery
system
Extended
commissioning of
systems

Energy use reduced
26% over a baseline
ASHRAE 90.1-1999
Lighting energy use
reduced 22% over
baseline ASHRAE
90.1
Annual energy
savings of $19,700
(2005 rates)
Emissions reduced
for NOx, SOx, CO2,
and PM
Peak energy load
reduced
Ozone depletion
reduced
System-operations
integrated

Geothermal heat
pump open loop
system for heating and
cooling
Controlled
daylighting for all
spaces used by
visitors and staff
High-performance
lighting with daylight
and occupancy
controls
CO2 sensors to
limit energy used to
condition unoccupied
spaces
Envelope improved
with insulation and
high-performance
glass
High-efficiency
variable-air-volume
system, fans and pump
motors
Energy Star®
appliances
Commissioning of
systems

Energy use reduced
– estimated at 31%
over a baseline
ASHRAE 90.1-2004
Renewable energy
accounts for 12% of
energy reduction.
Contributes 26% of
annual electrical load
Annual energy
savings of $14,000
(2006 rates)
Payback – 10
years simple payback
of energy conserving
measures (including
PV’s)
Ozone depletion
reduced

Photovoltaic glass
panels (thin film) with
50 kW peak capacity
Daylighting for all
occupied spaces,
skylights
High-performance
lighting, with daylight
and occupancy
controls
Garage unheated
and naturally
ventilated; engine
block heaters
Drain water heat
recovery
Envelope improved
with insulation and
high-performance
glass
Demand-based
ventilation controlled
by CO2 sensors
Commissioning of
all systems