Power generation capacity by source in the western US
Images are from the Northwest Power and Conservation Council's interactive map.
The hydroelectric marker for Grand Coulee Dam is not to scale. It should be larger. If drawn to scale it would dwarf the nearby markers.
According to the overview, the map does not include small producers in order to limit the number of markers. For the following sources, only producers above the specified cutoffs are shown:
Is there a reason Hoover dam isn't on there? With a capacity of around 2000MW it should be a pretty big circle, but it isn't even listed in the drop down menus.