Title: Renewable energy in the United States
Content:  The United States is the world leader in online capacity and the generation of electricity from geothermal energy. According to 2018 state energy data, geothermal energy provided approximately 16 terawatt-hours (TWh) of electricity, or 0.38% of the total electricity consumed in the country. As of May 2007, geothermal electric power was generated in five states: Alaska, California, Hawaii, Nevada, and Utah. According to the Geothermal Energy Association's recent report, there were 75 new geothermal power projects underway in 12 states as of May 2007. This is an increase of 14 projects in an additional three states compared to a survey completed in November 2006. The most significant catalyst behind new industry activity is 
Title: Geothermal energy in the United States
Content:  Geothermal energy in the United States was first used for electric power production in 1960. The Geysers in Sonoma and Lake counties, California was developed into what is now the largest geothermal steam electrical plant in the world, at 1,517 megawatts. Other geothermal steam fields are known in the western United States and Alaska. Geothermally generated electric power can be dispatchable to follow the demands of changing loads. Environmental impact of this energy source includes hydrogen sulfide emissions, corrosive or saline chemicals discharged in waste water, possible seismic effects from water injection into rock formations, waste heat and noise.
Title: List of geothermal power stations in the United States
Content:   Geothermal power stations in the United States are located exclusively within the Western United States where geothermal energy potential is highest. The highest concentrations are located in the Mayacamas Mountains and Imperial Valley of California, as well as in Western Nevada. The Geysers, a complex of 22 geothermal power stations located in Sonoma and Lake counties of California, was the first geothermal area to be exploited for commercial electricity generation when Unit 1 was commissioned in September 1960. The complex was then developed into the largest geothermal field in the world with a nameplate capacity of 1,517 MW and an annual generation of 6,516 GWh in 2018.
Title: Geothermal energy in the United States
Content:  According to archaeological evidence, geothermal resources have been in use on the current territory of the United States for more than 10,000 years. The Paleo-Indians first used geothermal hot springs for warmth, cleansing, and minerals. The first commercial geothermal power plant producing power to the U.S. utility grid opened at The Geysers in California in September 1960, producing eleven megawatts of net power. The Geysers system continues to operate successfully today, and the complex has grown into the largest geothermal development in the world, with an output of 750 MW. The largest dry steam field in the world is the Geysers, 116 km 
Title: Renewable energy in California
Content:  Geothermal power is power generated via the collection of thermal energy, stored over millions of years in the earth's core. In 2017, California ranked first in the United States in geothermal power generation. California is located on the Pacific Ring of Fire, with the conjunctions of tectonic plates providing California the largest potential for producing geothermal energy generation in the country. Most of California's geothermal plants are located slightly north of San Francisco in Lake Folsom and Sonoma Counties. This is due to the geysers geothermal resource area, which produces electricity from dry steam. This area has been producing electricity since the mid-1960s, with dry steam in this location existing in only one of two places in the world. There are 43 operating geothermal power plants in California, which produced 11,745 gigawatt-hours of electricity in 2017. This in-state generation, combined with 700 GWh of imported geothermal energy, led geothermal energy to contribute 5.69% of the state's total electricity usage in 2017.
Title: Geothermal exploration
Content:  Geothermal Energy is an underdeveloped energy resource and warrants further investigation and exploration. According to the U.S. Department of Energy, Utah's geothermal capabilities alone, if fully developed, could provide 1/3 of the state's power needs. Currently, the United States is planning to organize national geothermal databases, expand USGS resources nationally and develop geophysical projects to validate advances in exploration technologies. Below lists U.S. counties and regions that potentially can utilize geothermal power and would warrant further exploration.
Title: Geothermal energy in the United States
Content:   With 3,676 MW of installed geothermal capacity as of 2019, the United States remains the world leader with about 25% of the online capacity total. The future outlook for expanded production from conventional and enhanced geothermal systems is positive as new technologies promise increased growth in locations previously not considered.
Title: Geothermal power
Content:   The largest group of geothermal power plants in the world is located at The Geysers, a geothermal field in California, United States. As of 2004, five countries (El Salvador, Kenya, the Philippines, Iceland, and Costa Rica) generate more than 15% of their electricity from geothermal sources. Geothermal electricity is generated in the 24 countries listed in the table below. During 2005, contracts were placed for an additional 500 MW of electrical capacity in the United States, while there were also stations under construction in 11 other countries. Enhanced geothermal systems that are several kilometres in depth are operational in France and Germany and are being developed or evaluated in at least four other countries.
Title: Geothermal energy in the United States
Content:  to open in 2013. The Basin and Range geologic province in Nevada, southeastern Oregon, southwestern Idaho, Arizona and western Utah is now an area of rapid geothermal development. Several small power plants were built during the late 1980s during times of high power prices. Rising energy costs have spurred new development. The capacity of all 19 currently active geothermal power plants in Nevada is more than 486 MW. The largest plant is the McGinnis Hills facility operated by Ormat with a capacity of 96MW. Other geothermal plants in Nevada are at Steamboat Springs, Brady/Desert Peak, Dixie Valley, Soda Lake, Stillwater and Beowawe.
Title: Geothermal power
Content:  US as the second highest producer of geothermal power in the world, with 1,904 MW of capacity online; geothermal power makes up approximately 27% of the country's electricity generation. Al Gore said in The Climate Project Asia Pacific Summit that Indonesia could become a super power country in electricity production from geothermal energy. In 2013, India announced a plan to develop the country's first geothermal power facility in Chhattisgarh. Canada is the only major country on the Pacific Ring of Fire which has not yet developed geothermal power. The region of greatest potential is the Canadian Cordillera, stretching from British Columbia to the Yukon, where estimates of generating output have ranged from 1,550 MW to 5,000 MW.

Question: where is geothermal energy used the most in the us?
Answer: California.