Geothermal power capacity in the U.S. 2023, by state

In 2023, California was the state with the highest geothermal capacity installed in the United States, with approximately 1.9 gigawatts. Nevada, Utah, and Hawaii are other leading states in geothermal power capacity. In total, the U.S. had an installed geothermal electricity capacity of almost 2.7 gigawatts as of end of 2023.  

Geothermal energy consumption in the U.S. 

California not only leads in production capacity but also in geothermal energy consumption, followed by Nevada by a wide margin. Interestingly, while these western states primarily use geothermal energy in the power sector, states like Florida and Michigan show significant residential and commercial geothermal consumption. This diverse utilization across sectors and regions demonstrates the versatility of geothermal energy in meeting various energy needs, such as power production and heating. Overall, the U.S. consumed approximately 120 trillion British thermal units of geothermal energy in 2023.  

U.S. geothermal power production 

Geothermal power production in the United States is dominated by two major players, Ormat and Calpine, which together account for roughly 67 percent of the country's geothermal electricity generation. In total, the U.S. produced approximately 16.5 terawatt hours of geothermal electricity in 2023. While geothermal energy plays a crucial role in states like California and Nevada, it accounts for only 0.4 percent of total U.S. electricity generation. In contrast, wind power contributes about 10 percent to the national grid.