Tapping steam 8,000 feet underground, a Canadian company has revived a long abandoned steam field and is attempting to build the first power plant at The Geysers in 21 years.
The $165 million project proposed in the mountains of northeast Sonoma County reflects resurgent activity at the world’s largest geothermal field, part of the greatest exploration [...]

By STEVE HART
THE PRESS DEMOCRAT
A Petaluma startup is hoping to plug in to the booming market for solar technology with an automated system for cleaning photovoltaic panels.
OCS Energy’s SolarWash system can increase the output of solar energy plants by 5 to 25 percent, said Rich O’Connell, the company’s CEO.
Dirt, leaves, moss, mold, sap, bugs — [...]