Projects Overview
Ft. Leavenworth
Mendota Federal Prison Camp
Sonoma County Water Agency
Cameron Park
National Park Service Intern Center
City College of San Francisco
Eleanor Roosevelt Circle
Kingwood Commons
Mutual Housing at the Highlands
Santa Rosa, California
Owner: Sonoma County Water Agency
Project Start: October, 2008
Project End: Design complete August, 2009
SF Heated/Cooled: 57,000
Heat Pumps 47
Ground Loops: 120 loops x 400 ft dp
System Size: 182 tons
Project Start: February, 2010
Project End: Construction TBD
SF Heated/Cooled: 18,853
Heat Pumps: 11
Ground Loops: 32 loops x 400 ft dp
System Size: 60 tons
The Sonoma County Water Agency, which owns two buildings in the Airport Business Park in Santa Rosa, California, chose geothermal to reduce energy use in these buildings.
The 404 Aviation Blvd. project is a geothermal heat pump retrofit of the existing HVAC system at the headquarters building for SCWA. The existing system is a combination of large rooftop AC, VAV with hot water reheat and smaller packaged rooftop gas-electric units.
The 1315 Airport Blvd. project is a geothermal heat pump retrofit of the existing HVAC system at the operations & maintenance engineering building for SCWA. The existing system consists of various sizes of packaged rooftop gas-electric units.
Project design features
100% geothermal heating & cooling.
Removed all natural gas use from the site (reduced carbon footprint).
Used existing VAV supply duct for OSA air duct to all 47 heat pumps at 404 Aviation Blvd.
Used existing duct distribution system wherever possible to reduce costs.