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1922
The first geothermal power plant in the USA was built in Geysers, California, producing 250 kilowatts of power. It operated intermittently and was later shut down.
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1960
Pacific Gas and Electric began operating the first successful geothermal power plant in the USA at The Geysers, California, with a capacity of 11 megawatts.
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1974
The oil crisis sparked increased interest in renewable energy, including geothermal. Research and development expanded significantly.
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1975
The first Stanford Geothermal Workshop was held, providing a platform for researchers and industry leaders to share advancements and collaborate on geothermal technologies.
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1980s
The Geysers became the largest geothermal field in the world, with a peak generating capacity of over 2,000 megawatts.
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2000s
Geothermal power capacity continued to grow with advancements in Enhanced Geothermal Systems (EGS) and binary cycle technology.
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2020s
Geothermal energy became a key component of the USA's renewable energy strategy, with increasing investments and innovative projects.