
Slovenia
SVNHydro overtook coal on Slovenia's grid in 2018.
Today hydro supplies 27% and coal 15%.
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.
Slovenia 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 Slovenia
Slovenia gets next to none of its electricity from wind, in a region built on it.
49% of grids in Europe draw more than a tenth of their power from wind.
Slovenia has taken the carbon out of its electricity fast.
317 grams of CO2e a kilowatt-hour in 2015, 183 in 2025.
Slovenia has no dominant fuel at all.
Its largest single source supplies just 39% of the grid.
Slovenia’s neighbours
CroatiaWind overtook gas on Croatia's grid in 2025.
HungarySolar overtook gas on Hungary's grid in 2024.
AustriaAustria has cleaned up its grid faster than most people realise.
ItalyItaly has cleaned up its grid faster than most people realise.
Bosnia and HerzegovinaBosnia and Herzegovina generates no gas electricity at all, in a region built on it.
Figures are for 2025, the most recent year reported for Slovenia. Generation shares are a percentage of electricity generated, not of energy used. How this is calculated.