EVs and data centers will drive power demand in the U.S. higher, while the expansion of air conditioning will add to electricity needs in developing countries.

Global electricity demand is expected to grow by more than the total consumption of Japan each year through 2027, but the expansion of low-emissions energy sources should help offset the trend, the IEA said in a report on Friday.

Perhaps surprisingly, in advanced economies like the U.S., total and per capita electricity demand has stayed relatively flat or even declined since 2009. That's starting to change.

Renewable energy sources have surpassed fossil fuels in the European Union's electricity generation mix for the first time.