Sweden
SWEHydro overtook nuclear on Sweden's grid in 2020.
Today hydro supplies 40% and nuclear 28%.
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.
Among the cleanest electricity anywhere.
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.
Sweden 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.
Most of what this grid runs on is 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 Sweden
Sweden gets next to none of its electricity from gas, in a region built on it.
54% of grids in Europe draw more than a tenth of their power from gas.
Sweden is third in Europe for electricity used per person.
16,019 kWh per person per year, third of 41.
Sweden runs one of the cleanest grids in the EU.
99% of its electricity is low-carbon, first of 27.
Sweden’s neighbours
Figures are for 2025, the most recent year reported for Sweden. Generation shares are a percentage of electricity generated, not of energy used. How this is calculated.