Page 13 - Designing for Zero Carbon - Case Studies of All-Electric Buildings

PROLOGUE
DESIGNING FOR ZERO CARBON
Building Type: Two-Story Office
Location: Los Altos, CA Gross Floor Area: 49,000 gsf Occupied: July 2012
Modeled EUI (Site)
19.4 kBtu/sf-year
Measured EUI (Site)
20.7 kBtu/sf-year (2012) 14.1 kBtu/sf-year (2013)
On-Site Renewable Energy System Installed
285 kW (DC) Solar PV Measured On-Site Energy Production
282,000 kWh/year (2013) 19.6 kBtu/sf-year (2013)
HVAC System
Air-Source Heat Pumps
DHW
Solar Thermal System with Electric Storage Tank
Zero Net Energy Case Study Buildings - Volume 1
Packard Foundation Headquarters Building
Building Type: Office Location: Sunnyvale, CA Gross Floor Area: 31,759 gsf Occupied: May 2014
Modeled EUI (Site):
21.2 kBtu/sf-year
Measured EUI (Site):
13.5 kBtu/sf-year (Oct 2014 — Sept 2015)
On-Site Renewable Energy System Installed:
113.2 kW (DC) Solar PV Measured On-Site Energy Production:
266,000 kWh/year
28.6 kBtu/sf-year (Oct 2014 — Sept 2015)
HVAC System
Air-Source Heat Pumps
DHW
Solar Thermal System with Electric Storage Tank
Zero Net Energy Case Study Buildings - Volume 2
Speculative Office Building at 435 Indio Way
Building Type: Civic / Library Location: Berkeley, CA Gross Floor Area: 9,300 gsf Occupied: January 2014
Modeled EUI (Site):
17.5 kBtu/sq.ft.-year
Measured EUI (Site):
23.1 kBtu/sq.ft.-year (2014)
On-Site Renewable Energy System Installed:
52.2 kW (DC) Solar PV Measured On-Site Energy Production:
75,350 kWh per year
27.7 kBtu/sq.ft.-year (2014)
HVAC System
Air-Source Heat Pumps
DHW
Solar Thermal System with Electric Storage Tank
Zero Net Energy Case Study Buildings - Volume 2
West Berkeley Branch Library
Designing for Zero Carbon: Volume 1
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