<P> 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 nation 's hydroelectricity . Hydroelectricity projects such as Hoover Dam , Grand Coulee Dam , and the Tennessee Valley Authority have become iconic large construction projects . </P>
<P> 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 nation 's hydroelectricity . Hydroelectricity projects such as Hoover Dam , Grand Coulee Dam , and the Tennessee Valley Authority have become iconic large construction projects . </P>
where is hydropower used in the united states
where is hydropower used in the united states
at least 34 US states
at least 34 US states