Clean sources, renewables plus nuclear, supplied 42.6 per cent of the world's electricity in 2025, up from 40.9 per cent a year earlier, according to the yearly data of the energy think tank Ember. Fossil fuels fell to 57.4 per cent, and power-sector CO2 emissions edged down from 14,574 to 14,550 million tonnes. Our previous post covered solar, wind and coal; these five charts look at the rest of the mix.
Twelve countries are at least 90 per cent clean
In the clean electricity chart, 12 countries that generate at least 10 TWh got 90 per cent or more of their power from clean sources. Costa Rica, Ethiopia and Paraguay are shown at 100 per cent, mostly thanks to hydropower. France reached 94.8 per cent, and the nuclear share chart shows why: 68.8 per cent of its electricity came from reactors, the highest share in the data. The United States generated the most nuclear power in total, 784.8 TWh.
The dirtiest and the gas-heaviest grids
The world average carbon intensity of electricity fell from 471.5 to 458.5 grams of CO2 per kilowatt-hour. The carbon intensity chart is topped by Uzbekistan and Kazakhstan, followed by South Africa at 699.0 grams; Uzbekistan's figure looks unusually high and is flagged on the chart page. In the gas share chart, Qatar generated 95.9 per cent of its electricity from gas, while gas supplied 21.7 per cent worldwide.
Who uses the most power per person
The per-person consumption chart is led by Norway at 24.50 megawatt-hours per person, against a world average of 3.86. The United States used 13.06 MWh per person and China 7.46 MWh, more than France's 7.15.
| Chart | Leader | Value |
|---|---|---|
| Clean Electricity Share by Country 2025 | Costa Rica | 100.0% |
| Countries With the Most Carbon-Intensive Electricity 2025 | Uzbekistan | 1,000.0 g/kWh |
| Nuclear Share of Electricity by Country 2025 | France | 68.8% |
| Gas Share of Electricity by Country 2025 | Qatar | 95.9% |
| Electricity Consumption per Person by Country 2025 | Norway | 24.50 MWh |
Gaps in the data
Ember's 2025 release covers 91 countries. Iceland, Bahrain, Saudi Arabia, Algeria and a few other countries have no 2025 figures yet; several of them would rank near the top of the gas and consumption charts. The US nuclear and gas shares match the US Energy Information Administration's own figures.