He didn't. Not to burst anyones bubble but AC power by Hydro Electric means was in several places in Europe by 1870. Tesla, wouldn't even be hired to work on the problem for another decade.
Nikola Tesla
eem?.......................!
scientist who first invented hydro power was Churchill
he did it for communication advances by transporting power long distances
Tesla with Westinghouse made the first hydro plant in the Niagara. The water moved the turbines and the AC motors delivered the electricity.
1931
Colorado springs, 1891
Nikola Tesla had inventions that have to do with wireless technology. He did not invent telophone cables.
Nikola Tesla and George Westinghouse built the first hydro-electric power plant in 1895 in Niagara Falls and started the electrification of the world.
By 1888 Nikola Tesla built and patented his alternating current motor wich is the one to power homes and builduings today.
yes he did
Nikola Tesla