(p. 131) Where Edison truly excelled was as an organizer of systems. The invention of the light bulb was a wondrous thing but of not much practical use when no one had a socket to plug it into. Edison and his tireless workers had to design and build the entire system from scratch, from power stations to cheap and reliable wiring, to lampstands and switches. Within months Edison had set up no fewer than 334 small electrical plants all over the world; (p. 132) within a year or so his plants were powering thirteen thousand light bulbs. Cannily he put them in places where they would be sure to make maximum impact: on the New York Stock Exchange, in the Palmer House Hotel in Chicago, La Scala opera house in Milan, the dining room of the House of Commons in London. Swan, meanwhile, was still doing much of his manufacturing in his own home. He didn’t, in short, have a lot of vision. Indeed, he didn’t even file for a patent. Edison took out patents everywhere, including in Britain in November 1879, and so secured his preeminence.
Bryson, Bill. At Home: A Short History of Private Life. New York: Doubleday, 2010.