United States of America

Rock River— 168.9 MW Natural Gas

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Rock River power generation facility, with a capacity of 168.9 MW, ranks as the 1553rd largest out of 10,047 plants in the United States, reflecting its modest yet vital contribution of 0.01% to the national energy capacity. This gas-fired power plant, operated by Wisconsin Power & Light Co, was commissioned in 1970, marking over five decades of service. As part of the regional energy mix, Rock River operates in a highly competitive landscape dominated by gas, which is the primary fuel in the U.S., accounting for a significant portion of the 1,386,385 MW total capacity. In the context of nearby facilities, the Rock River plant is surrounded by several larger gas plants, including the Riverside Energy Center, which boasts a capacity of 674.9 MW, and RockGen Energy Center, with 561 MW. This clustering of gas facilities highlights the region's reliance on this fuel type for power generation, as well as the potential for interconnectivity and grid reliability. With an average plant capacity of roughly 138 MW across the U.S., Rock River's capacity is slightly above average, indicating its importance in local energy supply. The enduring operation of Rock River contributes to the stability of the grid in Wisconsin, providing essential backup during peak demand periods. As the United States continues to navigate its energy transition, the role of facilities like Rock River will be crucial in balancing traditional energy sources with emerging renewable technologies, ensuring a reliable and resilient energy future.