5.1° of fluid temperature drop @9gpm yields 28,600 Btus per hour

There's (thermal) gold in them thar hills. Drill for it!

A 20-ton heat exchanger headed for the bottom of a sewer effluent pond

6' wide x 6' deep x 829' long trenching for 7 loop runs provides 5,800' of conducting pipe with average winter saturation at 40"

45" diameter Slinky® coils in silt @7'

Vertical Geo Borehole

Fusing Headers & Stubs

Welcome to the home page of CaliforniaGeo.  

We want more geo heat pumps connected to the earth as our thermal battery.  Underground renewable thermal energy rules!


We strive to turn California’s regulations and policies into green action by government, consumers, and businesses. These include the installation or retrofit of GHPs (geothermal heat pumps) to eliminate greenhouse gas generation by buildings, and to foster their achievement of LEED-certified ratings and a march toward carbonless ZeroNetEnergy, the most sustainable building option of all. Our advocacy is matched with increasing education and training to develop installation professionals and maintain quality standards for evaluation and measurement that prove performance of GHP technology.