The world needs a new source of energy, an unspillable source.

Eight generator units in the generator room of a new addition to TVA’s hydroelectric plant at Wilson Dam, Sheffield vicinity, Ala. Located 260 miles above the mouth of the Tennessee River, the dam has an authorized power installation of 288,000 kw., which

HYDROELECTRIC

Image taken on 1940-01-01 00:00:00 by The Library of Congress.