All the good locations are already developed: The available number of
potential hydropower dam sites is limited by geography, and in the United States, the most viable sites have already been developed or are off limits.
While conventional
hydropower will continue to grow as
dams are completed in China, Brazil and a scattering of other countries, including Ethiopia, Malaysia, and Turkey, there exists enormous
potential for non-conventional hydroelectricity generation from tidal and wave projects, as well as from small in - stream projects that will not require new
dams.