In 2017, global electricity consumption increased 2.5 percent to reahch 25,721 Twh. When it comes to consumption, China uses the most of any country at 25.9 percent, followed by the United States with 17.5 percent. On a per capita basis, the situation is different, however. According to the IEA Atlas of Energy, electricity consumption in Iceland was 54.4 megwatt hours per capita in 2017, the highest level of any country.