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Presentation from the International Green Building Conference in Singapore highlighting RNL's future study for a net z
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future study
Locations:
Denver
Los Angeles
Phoenix
Washington DC
Abu Dhabi
Singapore
Services:
Architecture
Urban Design
Landscape Architecture
Interior Design
Lighting
Established: 1956
Global Design
Ranked 5th in the US for Sustainable Design
THE BIG PICTURE
DESIGN FOR ONE EARTH
NET ZERO BUILDING
NATIONAL RENEWABLE ENERGY LABORATORY
NREL CAMPUS
1
2
3
4
5
67
8
INTEGRATED DESIGN1 60 ft. Wide Office Wings2 Interior Thermal Mass3 Thermal Labyrinth4 Daylighting5 Natural Ventilation6 Low Window to Wall Ratio7 Transpired Solar Collectors8 Open Workplace9 Radiant Slabs10 Decoupled Ventilation11 Solar Energy
9 10
11
ZER
O
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
Mo
de
l
RS
F
PV
October2010
November2010
December2010
January2011
February2011
March2011
April2011
May2011
June2011
July2011
August2011
September2011
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
4
8
12
16
20
24
28
32
36
PV
Data Center
Mechanical Systems
Plug Loads
Lighting
Heating
Cooling
Model Annual EUI
RSF Annual EUI
Mo
nth
ly E
UI
(kB
tu/f
t2)
An
nu
al E
UI
(kB
tu/f
t2)
The PV system is sized for an annual EUI of 35.1 kBtu/ft2.
Note: The annual EUI values are demand side values and do not include the PV generation.
MEASURED RESULTS
SINGAPORE CONTEXT
SINGAPORE CLIMATE
SINGAPORE ENERGY
+ WATER
SITE
PROGRAM3,300SM OFFICE PLATE
49,500SM OFFICE
1,200SM RETAIL
3,900SM PARKING
BASELINE ENERGY
NZE PRECEDENTS
50 kWh/m2
NZE PRECEDENTS
60 kWh/m2
NZE TARGET
BASELINE WATER
NZW TARGET
NZW SYSTEM
SINGAPORE CLIMATE
SINGAPORE CLIMATE
COOLING LOADS
DAYLIGHTING
DAYLIGHTING
DAYLIGHTING
Overcast Sky
DAYLIGHTING
Electrochromic Glazing at NREL Research Support Facility
DAYLIGHTING
DAYLIGHTING
DAYLIGHTING
DAYLIGHTING
DAYLIGHTING
ENVELOPE
Aspect Ratio North/South Envelope70% Window to Wall Ratio
East/West Envelope70% Window to Wall Ratio
Glazing SC at 40% VLT: 0.41Glazing SC at 20% VLT: 0.27Glazing SC at 5% VLT: 0.11 ETTV at 40% VLT = 58.16 w/m2
ETTV at 20% VLT = 36.84 w/m2
ETTV at 5% VLT = 21.35 w/m2
LIGHTING / PLUG LOAD
Time of Day
Ligh
ting
Powe
r Den
sity
w/m
2
Plug
Loa
d Po
wer D
ensit
y w/
m2
Time of Day
Conventional Practice
Conventional Practice
Net Zero Energy Practice
Net Zero Energy Practice
Net Zero Energy Practice Connected Load
VENTILATION/COOLINGActive Chilled Beam
RENEWABLE ENERGY
RENEWABLE ENERGY
ENERGY SYSTEM
SITE PLAN
SINGLE-TENANT PLAN
MULTI-TENANT PLAN
SECTIONS
OPEN LEVEL PLAN
VIEW LOOKING SOUTH
VIEW LOOKING NORTH
THANK YOU
