When hydro was still king: In 1860s there was one waterwheel per 1000 inhabitants of Prussia.
Waiting for the green energy revolution: c. 1/2 of renewable production is STILL hydro built 1900-1975. Wind is the only
Waiting for the green energy revolution: c. 1/2 of renewable production is STILL hydro built 1900-1975. Wind is the only thing to have significantly shifted