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Build Here: How Targeted State Investment in Geothermal Can Fill California’s Clean Firm Gap
The report argues that next-generation geothermal, specifically enhanced geothermal systems (EGS), can provide the 'clean firm' power California needs to reach its 2045 goals affordably. Modeling shows that EGS could reduce annual electricity supply costs by $10-44 billion and decrease the required pace of solar installation from 10 GW/year to 3 GW/year. While projects are currently being developed in other western states, the authors argue that in-state development would further save $3.5-5.5 billion annually and reduce interregional transmission needs by 28-53%. To overcome the 'missing middle' of financing for high-risk exploration wells, the report recommends California establish a public subsurface mapping and testbed program similar to the DOE's FORGE project in Utah.
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Document type: Report