Apr 02

Plenty of Geothermal Available in West

Geothermal power potential in California still largely untapped, says industry group

English: Geyserville: A geothermal power plant...

English: Geyserville: A geothermal power plant taps the geothermal resources of the area and provides steam of thermal energy that can be used to produce electricity similar to conventional oil of steam-electric plants. (Photo credit: Wikipedia)

As the California Air Resources Board (CARB) is examining their new scoping plan for implementing the state’s ambitious climate law, the leading geothermal industry group has issued a status report on California’s geothermal resources that says they are still largely untapped.

Geothermal power is “a viable, cost effective, and plentiful renewable energy option to meet California’s climate goals,” the Geothermal Energy Association (GEA) told CARB. Utilizing the Golden State’s geothermal resources can help achieve “carbon reductions with the least total cost and highest power system reliability,” the GEA reports.

In brief, the status report shows that:

geothermal power generated 4.4 percent of total system power in California in 2012, but could have generated substantially more;

• geothermal power produces some of the lowest life-cycle emissions when compared to almost every other energy technology;

• depending on the resource characteristics and plant design, geothermal power plants can be engineered to provide firm and/or flexible power;

• even with high upfront capital costs, geothermal power is a competitive renewable energy source;

• about half of California’s identified geothermal resources are still untapped, and significant resources may remain undiscovered;

• geothermal power is key to achieving an expanded renewable power portfolio at the lowest total cost;

• new technology will reduce geothermal power risks and can expand the supply curve to make more resources commercially available;

• the Salton Sea Known Geothermal Resource Area (SSKGRA) is considered by many to be the best opportunity for growth in California in the near term;

• distributed generation geothermal power and heating projects have potential in a number of areas, but are not eligible for the type of support provided other distributed generation projects;

• challenges to the growth of utility scale plants include weak demand, inadequate transmission, permitting delays, and a lack of coordinated policies.


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