Spain
ESPSolar overtook wind on Spain's grid in 2025.
Today solar supplies 22% and wind 20%.
What this grid depends on
Three measures that say more about a country than how much power it makes. Open “what this means” on any of them if the term is new.
Cleaner than 8 in 10 grids worldwide.
What this means
How much planet-warming gas is released to make one unit of electricity. Two countries can generate exactly the same amount and one of them be ten times dirtier doing it. Lower is better.
Spain generates a surplus and sells it on.
What this means
The share of what this country generates that is sold abroad rather than used at home. A country can only export if it produces more than it needs, which usually means plentiful hydro, nuclear or wind.
More of its fuel is bought in than produced at home.
What this means
How much of what this grid runs on the country can supply itself. Sun, wind and water count fully, because nobody can cut them off; coal, gas and oil only as far as the country digs them up. A high score is not the same as a good grid: mining your own coal scores well, importing uranium scores badly.
Also true of Spain
Solar overtook gas on Spain's grid in 2024.
Today solar supplies 22% and gas 22%.
Spain has taken the carbon out of its electricity fast.
328 grams of CO2e a kilowatt-hour in 2015, 154 in 2025.
Spain has no dominant fuel at all.
Its largest single source supplies just 22% of the grid.
Spain’s neighbours
FranceFrance is first in the world for nuclear.
PortugalHydro overtook wind on Portugal's grid in 2024.
MoroccoMorocco is among the world's biggest wind and solar producers and still burns fossil fuels for most of its power.
AlgeriaAlgeria runs almost entirely on gas.
NetherlandsThe Netherlands has taken the carbon out of its electricity fast.
Figures are for 2025, the most recent year reported for Spain. Generation shares are a percentage of electricity generated, not of energy used. How this is calculated.