The first households were supplied with electricity in the 1880s (from wikipedia). I think by around 1950 most urban households in the US had electricity. Rural households got there a few years later? The situation in Western Europe was similar? How electrified was Germany before and after world war II? Essentially I'm looking for charts showing the proportion of households with electric power over time for various regions in the world and my googling didn't provide anything useful beyond the wikipedia article.
In Europe the situation, for most countries, was different.
Gas and Electricity development was something that was developed on a local level.
For street lighting, Electricity replaced Gas rather swiftly after 1884.
1895 steetcars were electrified and after 1902 the underground system being build also used electricity.
For households, starting around 1890, gas was primarily used for ovens as a replacement for coal or wood. Even in the 1930's, electric ovens were still unpopular.
|Year||Households with electricity in %|
Until the 1930's, households used electricity primarily for lighting.
In 1928 only 3,5% used it for cooking appliances, 0.5% for washing machines and 0.2% for refrigerators.
Just a data point, but according to this German wp article, only 11 percent of US farms had electricity in 1934, while the share of farms with electricity in Germany and France was around 90 percent at the same time.