Did Nikola Tesla ever fail?

Only in marketing. Had he achieved his goal , most of our homes would be powered with DC electricity, instead of AC electricity, according to many historians.

Improvement for all: The answer given above is completely wrong. Tesla was a master of AC current and found a way to transmit AC current without wires. If his arch-nemesis Edison had successfully done something other than nothing with DC current, we would be living in a DC current world. The fact that almost everything on earth runs on AC electricity is probably Tesla's greatest SUCCESS. The failure was his lack of forethought in presenting a FREE energy distribution system to money hungry corporate capitalists. They discovered that Tesla's work could put them (specifically JP Morgan) basically out of the energy business, as over the air energy can't be regulated or metered.