as building performance, the architectural
form lends itself to views, daylighting and
self-shading and will feature abundant open
and green spaces. Energy goals associated
with ZNE performance and LEED Platinum
certification primarily drove strategies,
coupling overall reduction of energy
consumption with on-site power production.
Specific strategies include:
• High-performance envelope with
louver shading system.
• Daylighting via windows and skylights
along with associated controls.
• Shared HVAC/lighting occupancy
controls for vacancy reduction or complete
• Energy Star and low-energy fea-ture-equipped equipment office/lab/test
• Decoupled ventilation and cooling for
offices using dedicated outside air system
(DOAS) with energy recovery wheels and
• Dual-coil, dual-temperature chilled
water strategy that allows for compres-sor-less (non-chiller) free cooling for
nearly two thirds of the year.
• 550-ton HFO refrigerant centrifugal
heat recovery chiller to provide heating
and domestic hot water in addition to 42
F Chilled water used for final trim cooling
and/or dehumidification when ambient
conditions or loads require.
• Dual-purpose coils provide hot water
in preheat mode and process chilled water
in precool mode, reducing air pressure
drop and its impact on fan energy.
• Adiabatic/evaporative humidifiers
eliminate need for inefficient steam boilers
and can also be leveraged in selective air
handling units for evaporative cooling in
Riverside’s dry, cooling-dominated climate.
• Laboratory airflow monitoring to
allow turn-down of unoccupied spaces to a
four air changes per hour minimum.
• Cooling tower blow down is collected in a 12,000-gallon cistern, treated and
reused for irrigation and toilet flushing.
• Enhanced refrigerant management
and the use of low-GWP, HFO refrigerants
in equipment as a key strategy to reduce
short-lived climate pollutants.
• Right-sizing and reduction of conductor lengths to reduce voltage drop and system losses; substation locations optimized
to proximity of load served.
• Energy generated in test cells captured
by AC dynamometers for direct use or
storage in the facility battery system.
From an initial target energy use inten-
sity (EUI) of 65 kBtu/sf-yr that ratcheted
up through clarifications during the com-
petition process, the team’s low-entropy,
low-energy strategy reduced the building
EUI to ~53 kBtu/sf-yr, nearly a 20 percent
reduction in energy consumption from
the initial target, over 50 percent reduc-
tion from ASHRAE 90.1-2010 and far
surpasses the Title 24 Part 6 code required
Based on benchmarking, design and
corresponding energy modeling, the
building’s energy consumption will be
offset by approximately 3. 8 MW of on-
site PV. A 1. 5 MWh battery storage system
is incorporated with the PV system to ab-
sorb excess PV output at off-peak periods,
and then reduce on-peak demands and
associated utility costs.
Extensive electrical vehicle charging
infrastructure will support over 100
charging stations with dual vehicle ports
to reduce cost, and capacity provided
to ultimately double the total number
of stations. California’s source energy
definition for ZNE performance does not
require including EV charging energy in
the ZNE calculations.
However, CARB’s Southern Califor-
nia Headquarters has a goal for zero
emissions; 100 percent of energy for
all end-uses including electric vehicle
charging will be supplied with renewable
energy either from on-site PV power or
purchased green power.
“The new facility will reflect the
world-leading position of California and
demonstrate how progressive LEED and
ZNE measures can be incorporated into a
mixed environment of testing, laboratory
and office space,” said Deidre Cyprian,
California Air Resources Board project
manager for the SCCP.
“The new facility will also highlight
the role of science and the full weight of
commitment by the people of California to
the mission of protecting public health and
the stature of the California Air Resources
Board as one of the leading agencies in
the world for air pollution research and
climate-related science and regulation.”
Dave Sereno, PE, LEED AP, leads Affil-
iated Engineers, Inc.’s Industrial practice,
working with automotive, engine and aero-
space manufacturers, national laboratories,
fuel and oil companies and major research
Paul Erickson, LEED AP BD+C, is the
Building Performance Practice Leader for
Affiliated Engineers, Inc., managing the
firm’s sustainable design services and leading
high-performance S&T and higher ed projects
across the country. www.aeieng.com
16 LaboratoryDesign|NOVEMBER|DECEMBER 2018
Cooling tower blow down is collected in 12,000-gallon cistern, treated and reused for irrigation and toilet
flushing. Illustration: © Affiliated Engineers, Inc.