United States of America

Big Creek 3— 174.5 MW Hydroelectric

HydroRenewableVerified: Jul 2026

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Ranking as the 1527th largest power generation facility in the United States, Big Creek 3 holds a significant position in the nation’s vast hydroelectric landscape. This facility, with a capacity of 174.5 MW, is part of a crucial network of hydroelectric plants in California, contributing to the state's renewable energy goals and providing a reliable source of power to the grid since its commissioning in 1940. As the 116th largest hydro plant out of 1469 in the U.S., Big Creek 3 exemplifies the enduring legacy of hydroelectric energy in a country where gas dominates the energy mix. Big Creek 3 harnesses the power of flowing water to generate electricity through its hydropower technology, making it an essential player in the renewable energy sector. The facility operates by utilizing the gravitational pull of water, converting kinetic energy into electrical energy, which is then fed into the electrical grid. This process not only provides electricity but also helps in managing water resources in the region. Located within a 50-kilometer radius are several significant hydro plants, including Helms Pumped Storage with a capacity of 1053 MW, and J S Eastwood, which generates 199.8 MW. This regional cluster showcases a robust infrastructure for hydroelectric power generation, with plants like Mammoth Pool (190 MW), Pine Flat (165 MW), and Kerckhoff 2 Power Station (139.5 MW) further emphasizing the area's reliance on hydro energy. Big Creek 3’s output, while modest compared to its larger neighbors, still plays a vital role in supporting the local grid and balancing supply and demand in this energy-rich region. In the broader context of the U.S. energy profile, which includes 10,047 plants generating a cumulative capacity of 1,386,385 MW, Big Creek 3 contributes a mere 0.01% to the national capacity. However, in a country where natural gas is the predominant fuel source, the plant’s operation underscores the importance of diversifying energy sources. It highlights California’s commitment to renewable energy as a means of reducing greenhouse gas emissions and promoting sustainability. Owned and operated by Southern California Edison Co, Big Creek 3 stands as a testament to over eight decades of dedication to hydropower. As the energy landscape continues to evolve with an increasing focus on sustainability, plants like Big Creek 3 will remain essential, not only for their capacity but also for their environmental benefits. Looking forward, the role of such hydro facilities will be pivotal in supporting California's ambitious renewable energy targets and ensuring a balanced energy portfolio.