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Built 2026-11-05 (5 November 2026)

Czechia vs Slovakia: Electricity Compared

Czechia generated 75.5 TWh of electricity in 2025 and Slovakia 29.1 TWh, according to Ember. Nuclear was the largest source in both, at 42.3% in Czechia and 66.4% in Slovakia. Each kWh generated emitted 401 gCO2/kWh in Czechia and 95 gCO2/kWh in Slovakia. These are Ember annual statistics for 2025, compiled from national sources; they are not real time.

Who is bigger and who is cleaner? Czechia is the bigger electricity producer, generating 2.6 times as much as Slovakia in 2025 (75.5 TWh against 29.1 TWh). Slovakia has the cleaner electricity by carbon intensity, at 95 gCO2/kWh against 401 gCO2/kWh in Czechia in 2025.

Why this comparison: neighbours by land border or interconnector.

Open this comparison in the interactive tool to add more countries or change the metric.

Key Facts

  • Coal supplied 35.2% of Czechia's electricity in 2025, against 1.1% in Slovakia.
  • Czechia's electricity was 4.2 times as carbon intensive as Slovakia's in 2025, at 401 gCO2/kWh against 95 gCO2/kWh.
  • Low carbon sources supplied 59.2% of Czechia's electricity in 2025 and 85.1% of Slovakia's.
  • Electricity demand in 2025 was 68.1 TWh in Czechia and 26.7 TWh in Slovakia.

Key Figures, 2025

Ember annual statistics
Measure Czechia Slovakia
Total generation75.5 TWh29.1 TWh
Electricity demand68.1 TWh26.7 TWh
Demand per person6.42 MWh4.88 MWh
Carbon intensity401 gCO2/kWh95 gCO2/kWh
Power sector emissions30.3 MtCO22.77 MtCO2
Low carbon share59.2%85.1%
Largest sourceNuclear 42.3%Nuclear 66.4%

Generation Mix, 2025

Share of generation
Source Czechia Slovakia
Nuclear 42.3% 66.4%
Coal 35.2% 1.1%
Gas 5.4% 11.3%
Hydro 2.3% 10.8%
Bioenergy 8.0% 5.4%
Solar 5.8% 2.5%
Other fossil 0.2% 2.5%
Wind 0.8% 0.0%

Carbon Intensity, 1990 to 2025

Ember annual statistics
Carbon intensity of electricity in Czechia and Slovakia, 1990 to 2025 Carbon intensity of electricity generated in Czechia and Slovakia each year from 1990 to 2025, in gCO2/kWh. In 2025 it was 401 gCO2/kWh in Czechia and 95 gCO2/kWh in Slovakia. 0 200 400 600 800 19901995200020052010201520202025
Carbon intensity of electricity generated in Czechia and Slovakia each year from 1990 to 2025, in gCO2/kWh. In 2025 it was 401 gCO2/kWh in Czechia and 95 gCO2/kWh in Slovakia.
Annual statistics through 2025, gCO2/kWh
Carbon intensity of electricity in Czechia and Slovakia, 1990 to 2025
YearCzechiaSlovakia
1990778 gCO2/kWh387 gCO2/kWh
1991779 gCO2/kWh371 gCO2/kWh
1992767 gCO2/kWh392 gCO2/kWh
1993759 gCO2/kWh325 gCO2/kWh
1994747 gCO2/kWh273 gCO2/kWh
1995756 gCO2/kWh322 gCO2/kWh
1996749 gCO2/kWh323 gCO2/kWh
1997758 gCO2/kWh332 gCO2/kWh
1998749 gCO2/kWh322 gCO2/kWh
1999737 gCO2/kWh306 gCO2/kWh
2000767 gCO2/kWh251 gCO2/kWh
2001752 gCO2/kWh251 gCO2/kWh
2002699 gCO2/kWh225 gCO2/kWh
2003652 gCO2/kWh257 gCO2/kWh
2004640 gCO2/kWh253 gCO2/kWh
2005647 gCO2/kWh239 gCO2/kWh
2006634 gCO2/kWh231 gCO2/kWh
2007652 gCO2/kWh235 gCO2/kWh
2008628 gCO2/kWh224 gCO2/kWh
2009603 gCO2/kWh221 gCO2/kWh
2010594 gCO2/kWh205 gCO2/kWh
2011584 gCO2/kWh214 gCO2/kWh
2012553 gCO2/kWh204 gCO2/kWh
2013527 gCO2/kWh181 gCO2/kWh
2014531 gCO2/kWh173 gCO2/kWh
2015553 gCO2/kWh178 gCO2/kWh
2016574 gCO2/kWh177 gCO2/kWh
2017543 gCO2/kWh184 gCO2/kWh
2018533 gCO2/kWh191 gCO2/kWh
2019503 gCO2/kWh171 gCO2/kWh
2020460 gCO2/kWh159 gCO2/kWh
2021472 gCO2/kWh167 gCO2/kWh
2022488 gCO2/kWh142 gCO2/kWh
2023443 gCO2/kWh115 gCO2/kWh
2024414 gCO2/kWh97 gCO2/kWh
2025401 gCO2/kWh95 gCO2/kWh

Demand per Person, 1990 to 2025

Ember annual statistics
Electricity demand per person in Czechia and Slovakia, 1990 to 2025 Electricity demand per person in Czechia and Slovakia each year from 1990 to 2025, in MWh. In 2025 it was 6.42 MWh in Czechia and 4.88 MWh in Slovakia. 0.0 2.0 4.0 6.0 8.0 19901995200020052010201520202025
Electricity demand per person in Czechia and Slovakia each year from 1990 to 2025, in MWh. In 2025 it was 6.42 MWh in Czechia and 4.88 MWh in Slovakia.
Annual statistics through 2025, MWh
Electricity demand per person in Czechia and Slovakia, 1990 to 2025
YearCzechiaSlovakia
1990n/an/a
1991n/an/a
1992n/an/a
1993n/an/a
1994n/an/a
1995n/an/a
1996n/an/a
1997n/an/a
1998n/an/a
1999n/an/a
20006.14 MWh5.22 MWh
20016.32 MWh5.23 MWh
20026.31 MWh5.21 MWh
20036.50 MWh5.34 MWh
20046.63 MWh5.32 MWh
20056.74 MWh5.22 MWh
20066.89 MWh5.38 MWh
20076.93 MWh5.50 MWh
20086.92 MWh5.43 MWh
20096.53 MWh5.06 MWh
20106.72 MWh5.29 MWh
20116.63 MWh5.37 MWh
20126.61 MWh5.31 MWh
20136.57 MWh5.28 MWh
20146.53 MWh5.21 MWh
20156.65 MWh5.35 MWh
20166.74 MWh5.43 MWh
20176.90 MWh5.60 MWh
20186.91 MWh5.57 MWh
20196.88 MWh5.49 MWh
20206.63 MWh5.29 MWh
20216.89 MWh5.60 MWh
20226.58 MWh5.11 MWh
20236.16 MWh4.73 MWh
20246.16 MWh4.83 MWh
20256.42 MWh4.88 MWh

Czechia history · Slovakia history

Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025.

Cite this page
APA 7

World Power Monitor. (2025). Czechia vs Slovakia: Electricity Compared. https://worldpowermonitor.com/compare/czechia-vs-slovakia/

Plain text

World Power Monitor. Czechia vs Slovakia: Electricity Compared. Data as of 2025. Data from Ember. https://worldpowermonitor.com/compare/czechia-vs-slovakia/

BibTeX 
@misc{wpm_compare_czechia_vs_slovakia_2025,
  title = {{Czechia vs Slovakia: Electricity Compared}},
  author = {{World Power Monitor}},
  year = {2025},
  note = {Data as of 2025. Data from Ember.},
  url = {https://worldpowermonitor.com/compare/czechia-vs-slovakia/}
}

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