Page 14 - Designing for Zero Carbon - Case Studies of All-Electric Buildings

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Building Type: Office Location: San Francisco, CA
Gross Floor Area: 24,010 gsf (including tenant space of 4,000 gsf) Occupied: May 2014
Modeled EUI (Site):
25.8 kBtu/sf-year
Measured EUI (Site):
22.4 kBtu/sf-year (May 2014 — June 2015)
On-Site Renewable Energy System Installed:
118 kW (DC) Solar PV Measured On-Site Energy Production (Electric): 157,000 kWh/year
26.8 kBtu/sf-year (May 2014 — June 2015)
HVAC System
Air-Source Heat Pumps
DHW
Solar Thermal System with Electric Storage Tank
Zero Net Energy Case Study Buildings - Volume 2
DPR Construction Office Building
Building Type: Classroom / Office
Location: San Leandro, CA Gross Floor Area: 45,000 gsf Occupied: June 2013
Modeled EUI (Site):
18.0 kBtu/sf-year
Measured EUI (Site):
16.3 kBtu/sf-year (July 2014— June 2015)
On-Site Renewable Energy System Installed:
154 kW (DC) Solar PV-flat panel 12 kW (DC) Solar PV-tracking 12 kW (DC) Wind Turbines Measured On-Site Energy Production:
267,500 kWh/year 20.3 kBtu/sf-year
HVAC System
Solar Thermal with HW Storage and Water-Source Heat Pump DHW
Solar Thermal with Electric Storage Tank System
Zero Net Energy Case Study Buildings - Volume 2
IBEW-NECA JATC Training Facility
Building Type: Research Laboratory/Office (B Occu- pancy)
Location: La Jolla, CA
Gross Floor Area: 44,607 gsf Occupied: November 2013
Modeled EUI (Site):
53.3 kBtu/sq.ft. per year
Measured EUI (Site):
73.7 kBtu/sq.ft. per year (2015)
On-Site Renewable Energy System Installed:
500 kW (DC) Solar PV Measured On-Site Energy Production:
850 MWh per year (2015)
65.0 kBtu/sq.ft. per year (2015)
HVAC System
Water-Source Heat Pumps with Thermal Storage Tanks
DHW
Heat Pump
Zero Net Energy Case Study Buildings - Volume 3
The J. Craig Venter Institute Laboratory
xii Designing for Zero Carbon: Volume 1