Greece vs Portugal: Electricity Compared

Greece generated 57.9 TWh of electricity in 2025 and Portugal 51.1 TWh, according to Ember. Greece's largest source was gas (40.3%); Portugal's was hydro (29.7%). Each kWh generated emitted 325 gCO2/kWh in Greece 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? Greece is the bigger electricity producer, generating 1.1 times as much as Portugal in 2025 (57.9 TWh against 51.1 TWh). Portugal has the cleaner electricity by carbon intensity, at 128 gCO2/kWh against 325 gCO2/kWh in Greece 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

Hydro supplied 29.7% of Portugal's electricity in 2025, against 5.9% in Greece.
Greece's electricity was 2.5 times as carbon intensive as Portugal's in 2025, at 325 gCO2/kWh against 128 gCO2/kWh.
Low carbon sources supplied 47.8% of Greece's electricity in 2025 and 80.9% of Portugal's.
Electricity demand in 2025 was 54.9 TWh in Greece and 60.4 TWh in Portugal.

Key Figures, 2025

Ember annual statistics

Measure	Greece	Portugal
Total generation	57.9 TWh	51.1 TWh
Electricity demand	54.9 TWh	60.4 TWh
Demand per person	5.57 MWh	5.80 MWh
Carbon intensity	325 gCO2/kWh	128 gCO2/kWh
Power sector emissions	18.8 MtCO2	6.53 MtCO2
Low carbon share	47.8%	80.9%
Largest source	Gas 40.3%	Hydro 29.7%

Generation Mix, 2025

Share of generation

Source	Greece	Portugal
Gas	40.3%	16.5%
Hydro	5.9%	29.7%
Wind	20.9%	26.8%
Solar	19.6%	17.3%
Other fossil	7.2%	2.6%
Bioenergy	1.3%	6.6%
Coal	4.7%	0.0%
Other renewables	0.0%	0.4%

Carbon Intensity, 1990 to 2025

Ember annual statistics

Carbon intensity of electricity generated in Greece and Portugal each year from 1990 to 2025, in gCO2/kWh. In 2025 it was 325 gCO2/kWh in Greece and 128 gCO2/kWh in Portugal.

Annual statistics through 2025, gCO2/kWh

Carbon intensity of electricity in Greece and Portugal, 1990 to 2025
Year	Greece	Portugal
1990	884 gCO2/kWh	540 gCO2/kWh
1991	839 gCO2/kWh	553 gCO2/kWh
1992	871 gCO2/kWh	650 gCO2/kWh
1993	877 gCO2/kWh	582 gCO2/kWh
1994	876 gCO2/kWh	540 gCO2/kWh
1995	849 gCO2/kWh	607 gCO2/kWh
1996	835 gCO2/kWh	482 gCO2/kWh
1997	850 gCO2/kWh	513 gCO2/kWh
1998	851 gCO2/kWh	515 gCO2/kWh
1999	820 gCO2/kWh	607 gCO2/kWh
2000	823 gCO2/kWh	546 gCO2/kWh
2001	846 gCO2/kWh	507 gCO2/kWh
2002	828 gCO2/kWh	593 gCO2/kWh
2003	790 gCO2/kWh	485 gCO2/kWh
2004	786 gCO2/kWh	541 gCO2/kWh
2005	782 gCO2/kWh	596 gCO2/kWh
2006	743 gCO2/kWh	504 gCO2/kWh
2007	777 gCO2/kWh	472 gCO2/kWh
2008	759 gCO2/kWh	472 gCO2/kWh
2009	747 gCO2/kWh	453 gCO2/kWh
2010	707 gCO2/kWh	317 gCO2/kWh
2011	725 gCO2/kWh	375 gCO2/kWh
2012	704 gCO2/kWh	441 gCO2/kWh
2013	637 gCO2/kWh	340 gCO2/kWh
2014	668 gCO2/kWh	326 gCO2/kWh
2015	604 gCO2/kWh	414 gCO2/kWh
2016	571 gCO2/kWh	344 gCO2/kWh
2017	580 gCO2/kWh	434 gCO2/kWh
2018	545 gCO2/kWh	359 gCO2/kWh
2019	497 gCO2/kWh	301 gCO2/kWh
2020	423 gCO2/kWh	248 gCO2/kWh
2021	383 gCO2/kWh	211 gCO2/kWh
2022	377 gCO2/kWh	225 gCO2/kWh
2023	337 gCO2/kWh	158 gCO2/kWh
2024	322 gCO2/kWh	111 gCO2/kWh
2025	325 gCO2/kWh	128 gCO2/kWh

Demand per Person, 1990 to 2025

Ember annual statistics

Electricity demand per person in Greece and Portugal each year from 1990 to 2025, in MWh. In 2025 it was 5.57 MWh in Greece and 5.80 MWh in Portugal.

Annual statistics through 2025, MWh

Electricity demand per person in Greece and Portugal, 1990 to 2025
Year	Greece	Portugal
1990	n/a	n/a
1991	n/a	n/a
1992	n/a	n/a
1993	n/a	n/a
1994	n/a	n/a
1995	n/a	n/a
1996	n/a	n/a
1997	n/a	n/a
1998	n/a	n/a
1999	n/a	n/a
2000	4.91 MWh	4.29 MWh
2001	5.08 MWh	4.47 MWh
2002	5.17 MWh	4.56 MWh
2003	5.44 MWh	4.70 MWh
2004	5.58 MWh	4.88 MWh
2005	5.69 MWh	5.03 MWh
2006	5.77 MWh	5.12 MWh
2007	6.04 MWh	5.14 MWh
2008	6.12 MWh	5.19 MWh
2009	5.83 MWh	5.12 MWh
2010	5.60 MWh	5.30 MWh
2011	5.55 MWh	5.17 MWh
2012	5.58 MWh	5.07 MWh
2013	5.31 MWh	5.08 MWh
2014	5.37 MWh	5.06 MWh
2015	5.61 MWh	5.15 MWh
2016	5.81 MWh	5.22 MWh
2017	5.68 MWh	5.32 MWh
2018	5.49 MWh	5.39 MWh
2019	5.40 MWh	5.32 MWh
2020	5.27 MWh	5.10 MWh
2021	5.48 MWh	5.19 MWh
2022	5.29 MWh	5.34 MWh
2023	5.26 MWh	5.40 MWh
2024	5.65 MWh	5.54 MWh
2025	5.57 MWh	5.80 MWh

Greece 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). Greece vs Portugal: Electricity Compared. https://worldpowermonitor.com/compare/greece-vs-portugal/

Plain text

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

BibTeX

@misc{wpm_compare_greece_vs_portugal_2025,
  title = {{Greece vs Portugal: Electricity Compared}},
  author = {{World Power Monitor}},
  year = {2025},
  note = {Data as of 2025. Data from Ember.},
  url = {https://worldpowermonitor.com/compare/greece-vs-portugal/}
}

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Greece vs Portugal: Electricity Compared

Key Facts

Key Figures, 2025

Generation Mix, 2025

Carbon Intensity, 1990 to 2025

Demand per Person, 1990 to 2025

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