what percentage of hydropower is used in the united states
Hydroelectric power in the United States According to IEA the United States was the 4th largest producer of hydroelectric power in the world in 2008 after China, Canada and Brazil. Produced hydroelectricity was 282 TWh (2008). It was 8.6% of the world's total hydropower. The installed capacity was 80 GW in 2015. The amount of hydroelectric power generated is strongly affected by changes in precipitation and surface runoff.[3]
Nile Below the Aswan High Dam, at the northern limit of Lake Nasser, the Nile resumes its historic course.
Colonial history of the United States A majority of New England residents were small farmers. A man had complete power over the property within these small farm families.
Great Lakes In 2009, the lakes contained 84% of the surface freshwater of North America;[40] if the water were evenly distributed over the entire continent's land area, it would reach a depth of 1.5 meters (5 feet).[15] The source of water levels in the lakes is tied to what was left by melting glaciers when the lakes took their present form. Annually, only about 1% is "new" water originating from rivers, precipitation, and groundwater springs that drain into the lakes. Historically, evaporation has been balanced by drainage, making the level of the lakes constant.[15] While the lake levels have been preserved, intensive human population growth only began in the region in the 20th century and continues today.[15] At least two human water use activities have been identified as having the potential to affect the lakes' levels: diversion (the transfer of water to other watersheds) and consumption (substantially done today by the use of lake water to power and cool electric generation plants, resulting in evaporation).[41]