http://cleantechnica.com/2010/11/01/stimulus-bill-has-put-almost-8-gw-of-geothermal-energy-on-us-grid/

Even if GOP takes over again, that will be there forever now, pretty much at fossil fuel prices per kwh - under 5 cents - once capital investment paid. Alameda next to Oakland has long had lower electric rates than PG&E because it gets so much geothermal power from the Geysers, from a contract signed in the 20s.