How the world powers itself.
Coal, oil, gas, nuclear, hydro, wind and solar. The Global Energy Index tracks every source of energy, country by country: what each country digs up, burns and generates, how much comes from renewables, how clean its electricity is, what it pays and what it trades. Every chart is built from data published by grid operators, statistics offices and market platforms, and every chart names its source.
The world map ranks every country by how green its electricity is. Deep dives go further: the United Kingdom, live and refreshed every few minutes, and China, the world's biggest power system, from its own statistics bureau.
Explore the world map →Countries
Every chart, by number
Each chart has a reference made from the country code and a number, such as UK-07 or CN-03, so it can be cited and found again. W- charts cover the whole world.
Where the data comes from
We go to the people who run the system and publish the numbers, not to aggregators. For Great Britain that means Elexon (the electricity settlement body) and NESO (the National Energy System Operator) for generation, APX/N2EX for wholesale prices, ENTSO-E, the European grid operators' transparency platform, for European generation and day-ahead prices, and the Department for Energy Security and Net Zero for gas use.
For China we use the National Bureau of Statistics' own monthly and yearbook data. For the world map, which needs every country on the same footing, we use Ember's yearly electricity dataset, which compiles each country's official statistics and is published openly under CC BY 4.0, and the World Bank for renewables' share of all energy use.
Elexon's feed covers power stations on the transmission network only, so it misses rooftop solar and small wind farms. We add NESO's estimates for those back in, so the mix is complete and gas isn't overstated.