as a region which part of the us produces the most hydropower
Hydroelectric power in the United States Hydroelectric stations exist in at least 34 US states. The largest concentration of hydroelectric generation in the US is in the Columbia River basin, which in 2012 was the source of 44% of the nationâ€™s hydroelectricity.[4] Hydroelectricity projects such as Hoover Dam, Grand Coulee Dam, and the Tennessee Valley Authority have become iconic large construction projects.
Electricity sector of the United States Principal sources of US electricity in 2014 were: coal (39%), natural gas (27%), nuclear (19%), Hydro (6%), and other renewables (7%). Over the decade 2004â€”2014, the largest increases in electrical generation came from natural gas (2014 generation was 412 billion kWh greater than 2004), wind (increase of 168 billion kWh) and solar (increased 18 billion kWh). Over the same decade, annual generation from coal decreased 393 billion kWh, and from petroleum decreased 90 billion kWh.[3]