good wiki

Electrification

Electrification is the process of powering by electricity and, in many contexts, the introduction of such power by changing over from an earlier power source. In the context of history of technology and economic development, electrification refers to the build-out of the electricity generation and electric power distribution systems in Britain, the United States, and other now-developed countries from the mid-1880s until around 1950.

More at Wikipedia

About