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Slovakia

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Slovakia is second in the world for nuclear.

Nuclear supplies 66% of its electricity.

Nuclear share
66%
2nd of 201 in the world
Clean share
85%
in 2025
Total output
29TWh
a year
Per person
5,315kWh
a year
Compare SlovakiaSee it on the map
Slovakia · mix since 2000
20002025
SolarOtherHydroNuclearGasOilCoal
Slovakia's electricity is cleaner than the world average. 95 grams of CO2e a kilowatt-hour against a world figure of 458 — 79% below.

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.

Carbon intensity
95g CO₂e per kWh

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.

Electricity exported
8% of what it makes

Slovakia 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.

Energy independence
20out of 100 · Critical Dependency

Most of the fuel behind this grid is bought from abroad.

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 Slovakia

Slovakia has taken the carbon out of its electricity fast.

177 grams of CO2e a kilowatt-hour in 2015, 95 in 2025.

Slovakia generates no wind electricity at all, in a region built on it.

49% of grids in Europe draw more than a tenth of their power from wind.

Slovakia has cleaned up its grid faster than most people realise.

Low-carbon electricity went from 72% to 85% in 20 years.

Slovakia’s neighbours

Figures are for 2025, the most recent year reported for Slovakia. Generation shares are a percentage of electricity generated, not of energy used. How this is calculated.