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Built 2026-11-05 (5 November 2026)

Czechia vs Portugal: Electricity Compared

Czechia generated 75.5 TWh of electricity in 2025 and Portugal 51.1 TWh, according to Ember. Czechia's largest source was nuclear (42.3%); Portugal's was hydro (29.7%). Each kWh generated emitted 401 gCO2/kWh in Czechia and 128 gCO2/kWh in Portugal. 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 1.5 times as much as Portugal in 2025 (75.5 TWh against 51.1 TWh). Portugal has the cleaner electricity by carbon intensity, at 128 gCO2/kWh against 401 gCO2/kWh in Czechia in 2025.

Why this comparison: similar electricity demand on the same continent.

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

Key Facts

  • Nuclear supplied 42.3% of Czechia's electricity in 2025, against none in Portugal.
  • Czechia's electricity was 3.1 times as carbon intensive as Portugal's in 2025, at 401 gCO2/kWh against 128 gCO2/kWh.
  • Low carbon sources supplied 59.2% of Czechia's electricity in 2025 and 80.9% of Portugal's.
  • Electricity demand in 2025 was 68.1 TWh in Czechia and 60.4 TWh in Portugal.

Key Figures, 2025

Ember annual statistics
Measure Czechia Portugal
Total generation75.5 TWh51.1 TWh
Electricity demand68.1 TWh60.4 TWh
Demand per person6.42 MWh5.80 MWh
Carbon intensity401 gCO2/kWh128 gCO2/kWh
Power sector emissions30.3 MtCO26.53 MtCO2
Low carbon share59.2%80.9%
Largest sourceNuclear 42.3%Hydro 29.7%

Generation Mix, 2025

Share of generation
Source Czechia Portugal
Nuclear 42.3% 0.0%
Coal 35.2% 0.0%
Hydro 2.3% 29.7%
Wind 0.8% 26.8%
Solar 5.8% 17.3%
Gas 5.4% 16.5%
Bioenergy 8.0% 6.6%
Other fossil 0.2% 2.6%
Other renewables 0.0% 0.4%

Carbon Intensity, 1990 to 2025

Ember annual statistics
Carbon intensity of electricity in Czechia and Portugal, 1990 to 2025 Carbon intensity of electricity generated in Czechia and Portugal each year from 1990 to 2025, in gCO2/kWh. In 2025 it was 401 gCO2/kWh in Czechia and 128 gCO2/kWh in Portugal. 0 200 400 600 800 19901995200020052010201520202025
Carbon intensity of electricity generated in Czechia and Portugal each year from 1990 to 2025, in gCO2/kWh. In 2025 it was 401 gCO2/kWh in Czechia and 128 gCO2/kWh in Portugal.
Annual statistics through 2025, gCO2/kWh
Carbon intensity of electricity in Czechia and Portugal, 1990 to 2025
YearCzechiaPortugal
1990778 gCO2/kWh540 gCO2/kWh
1991779 gCO2/kWh553 gCO2/kWh
1992767 gCO2/kWh650 gCO2/kWh
1993759 gCO2/kWh582 gCO2/kWh
1994747 gCO2/kWh540 gCO2/kWh
1995756 gCO2/kWh607 gCO2/kWh
1996749 gCO2/kWh482 gCO2/kWh
1997758 gCO2/kWh513 gCO2/kWh
1998749 gCO2/kWh515 gCO2/kWh
1999737 gCO2/kWh607 gCO2/kWh
2000767 gCO2/kWh546 gCO2/kWh
2001752 gCO2/kWh507 gCO2/kWh
2002699 gCO2/kWh593 gCO2/kWh
2003652 gCO2/kWh485 gCO2/kWh
2004640 gCO2/kWh541 gCO2/kWh
2005647 gCO2/kWh596 gCO2/kWh
2006634 gCO2/kWh504 gCO2/kWh
2007652 gCO2/kWh472 gCO2/kWh
2008628 gCO2/kWh472 gCO2/kWh
2009603 gCO2/kWh453 gCO2/kWh
2010594 gCO2/kWh317 gCO2/kWh
2011584 gCO2/kWh375 gCO2/kWh
2012553 gCO2/kWh441 gCO2/kWh
2013527 gCO2/kWh340 gCO2/kWh
2014531 gCO2/kWh326 gCO2/kWh
2015553 gCO2/kWh414 gCO2/kWh
2016574 gCO2/kWh344 gCO2/kWh
2017543 gCO2/kWh434 gCO2/kWh
2018533 gCO2/kWh359 gCO2/kWh
2019503 gCO2/kWh301 gCO2/kWh
2020460 gCO2/kWh248 gCO2/kWh
2021472 gCO2/kWh211 gCO2/kWh
2022488 gCO2/kWh225 gCO2/kWh
2023443 gCO2/kWh158 gCO2/kWh
2024414 gCO2/kWh111 gCO2/kWh
2025401 gCO2/kWh128 gCO2/kWh

Demand per Person, 1990 to 2025

Ember annual statistics
Electricity demand per person in Czechia and Portugal, 1990 to 2025 Electricity demand per person in Czechia and Portugal each year from 1990 to 2025, in MWh. In 2025 it was 6.42 MWh in Czechia and 5.80 MWh in Portugal. 0.0 2.0 4.0 6.0 8.0 19901995200020052010201520202025
Electricity demand per person in Czechia and Portugal each year from 1990 to 2025, in MWh. In 2025 it was 6.42 MWh in Czechia and 5.80 MWh in Portugal.
Annual statistics through 2025, MWh
Electricity demand per person in Czechia and Portugal, 1990 to 2025
YearCzechiaPortugal
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 MWh4.29 MWh
20016.32 MWh4.47 MWh
20026.31 MWh4.56 MWh
20036.50 MWh4.70 MWh
20046.63 MWh4.88 MWh
20056.74 MWh5.03 MWh
20066.89 MWh5.12 MWh
20076.93 MWh5.14 MWh
20086.92 MWh5.19 MWh
20096.53 MWh5.12 MWh
20106.72 MWh5.30 MWh
20116.63 MWh5.17 MWh
20126.61 MWh5.07 MWh
20136.57 MWh5.08 MWh
20146.53 MWh5.06 MWh
20156.65 MWh5.15 MWh
20166.74 MWh5.22 MWh
20176.90 MWh5.32 MWh
20186.91 MWh5.39 MWh
20196.88 MWh5.32 MWh
20206.63 MWh5.10 MWh
20216.89 MWh5.19 MWh
20226.58 MWh5.34 MWh
20236.16 MWh5.40 MWh
20246.16 MWh5.54 MWh
20256.42 MWh5.80 MWh

Czechia history · Portugal 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 Portugal: Electricity Compared. https://worldpowermonitor.com/compare/czechia-vs-portugal/

Plain text

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

BibTeX 
@misc{wpm_compare_czechia_vs_portugal_2025,
  title = {{Czechia vs Portugal: Electricity Compared}},
  author = {{World Power Monitor}},
  year = {2025},
  note = {Data as of 2025. Data from Ember.},
  url = {https://worldpowermonitor.com/compare/czechia-vs-portugal/}
}

Permalink: https://worldpowermonitor.com/compare/czechia-vs-portugal/

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