IANAH either, but I heard that when the Grand Coulee Dam was finished in the 1941, it produced as much electricity as ALL of Germany. This page says that 6 65,000 HP generators were in use during the war.
http://users.owt.com/chubbard/gcdam/html/history .h tml

I forget my source, but I think it was the Hitler/History Channel.

Btw, the GCD contains enough concrete to build a 4 lane highway 3,000 miles long (from NYC to LA).