Czechia energy mix & electricity

Power plants in Czechia produced 75.5 TWh of electricity in 2025. That is similar to Austria. Nuclear power is the largest source at 42.3%, ahead of coal (35.2%) and bioenergy (8%).

The renewable share stood at 16.8%, placing Czechia 118th of 158 ranked countries. This puts it 17 points below the world average of 33.8%. It is also below the average for Europe (41.6%). The EU-27 average is higher, at 47.7%. Because nuclear contributes another 42.3%, the low-carbon share is considerably higher, at 59.2%. Each kilowatt-hour emitted on average 401 g CO₂e, against a world average of 458 g. That makes the grid somewhat cleaner than the world average. On carbon intensity, Czechia ranks 79th of 158 from the cleanest.

Over the past decade nuclear power added more generation than any other source (+5.1 TWh since 2015, plus 9.8 percentage points of share). Coal moved the other way, falling by 14.5 TWh. Taken together, the renewable share rose by 5.4 percentage points over the decade. Total generation shrank by 7 TWh over the same period. Carbon intensity dropped from 553 to 401 g/kWh, a 27% cut.

Coal is in clear retreat: its share fell from 49.9% in 2015 to 35.2% in 2025, after peaking at 75.6% back in 1991. In absolute terms, coal generation peaked in 2007 at 53.8 TWh and has since fallen 51%.

Wind and solar together provided 6.6% of electricity (solar 5.8%, wind 0.8%), compared with 17.3% worldwide. Per person, that is 414 kWh of solar electricity a year, 1.2× the global average. In solar electricity per person, Czechia ranks 39th in the world. Wind adds 54 kWh per person. Solar first passed 1% of the mix in 2011.

Czechia generates 7,116 kWh of electricity per resident each year, 1.8 times the global average. Czechia is a net exporter, selling 7.5 TWh more electricity abroad than it imports (11% of domestic demand).