Tag: Castle Rock Springs

Is the Production of Geothermal Energy in The Geysers a “Public Nuisance”?

On September 15, less than a fortnight after AltaRock Energy halted its geothermal drilling in The Geysers, the Anderson Springs Community Alliance (ASCA), a small but formidable opponent of the AltaRock project, fired another salvo: this time charging the area’s main producer of geothermal energy with a public nuisance.

In a formal complaint and petition addressed to the Board of Supervisors of Lake and Sonoma Counties for “Remedy of Ongoing Public Nuisance from Geothermal Earthquakes Caused by Operations of Calpine Corp./Geysers Power Company, LLC at The Geysers,” ASCA specifically cited a September 5 magnitude 2.8 earthquake as the latest of more than a thousand magnitude 2.0 or higher temblors epicentered within five miles of Anderson Springs since 2000. These, ASCA contends, constitute an ongoing public nuisance. [A link to the complaint will be posted here when it goes online.]

According to the complaint, “Most residents of Anderson Springs were awakened by the jolt and noise of this earthquake; many were Continue reading “Is the Production of Geothermal Energy in The Geysers a “Public Nuisance”?”

Enhanced Geothermal Energy and Man-Made Earthquakes (Part 2)

As described in a previous post, Sausalito-based AltaRock Energy is drilling a Lake County test well aimed at producing energy by utilizing a technology called Enhanced Geothermal Systems (EGS). AltaRock’s project is on federal land leased by the Northern California Power Agency (NCPA) on a ridge just above the community of Anderson Springs, CA. According to an article published July 15 in the Lake County News, however, “concerns about the technology AltaRock is using has caused the Bureau of Land Management [BLM] and the Department of Energy [DOE] to decide to conduct further study before the work moves forward.”

In light of the earthquake activity caused by a similar EGS project in Basel, Switzerland in 2006, the question to be studied is: might EGS engender serious earthquakes here in California?

Continue reading “Enhanced Geothermal Energy and Man-Made Earthquakes (Part 2)”