I was speaking of AC power transmission as opposed to DC as was Edison design. Not his experiment with wireless.
It was Westinghouse vs Edison where the AC vs DC, respectively, debate happened. Tesla started the debate (he worked for Edison for a short while but their egos got in the way) Edison's idea was that each small community would have its own generator, single voltage dc and Westinghouse wanted large high voltage generator servicing a large area with a transformer stepping down the voltage to usable levels for groups of users.
From an engineering, maintenance and efficiency point of view Edison's approach made little sense (it only made sense if light bulbs were the only uses for electricity) especially if your house was at the periphery of the community (voltage drops as you get away from the generator) whereas Westinghouse's approach allowed for a transformer for every couple of uses (and for a heavy user such as a commercial building its own transformer) thus no substantial voltage drops as with Edison's approach. The death knell for Edisons DC approach was the electric motor, a heavy user of electricity (note that an electric motor and generator are basically the same thing).
Telsa had patents on it that he licensed to Westinghouse.
As an interesting sideline, When the electric chair was contemplated as a means of execution Edison testified as an expert saying that AC should be used as it was so dangerous as it would cause death immediately thus more humane and his DC Should not be used as it was much safer at low voltages i.e. the voltages to be used in his. He did this as self serving to promote his low voltage DC approach.
Tesla was involved with wireless transmission of electricity, a totally impractical approach which helped him go bankrupt even though he made a fortune on his electric motor patents.
Mod: please don't delete this - I won't post anymore on the subject. I can't explain how I know so much about this as it would expose my identity.