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.
Why this comparison: similar electricity demand on the same continent.
Key Facts
- Gas supplied 40.3% of Greece's electricity in 2025, against 16.5% in Portugal.
- 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 47.7% 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 | 47.7% | 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 | 19.7% | 17.3% |
| Other fossil | 7.2% | 2.6% |
| Bioenergy | 1.2% | 6.6% |
| Coal | 4.8% | 0.0% |
| Other renewables | 0.0% | 0.4% |
Carbon Intensity, 1990 to 2025
Ember annual statisticsAnnual statistics through 2025, gCO2/kWh
| 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 statisticsAnnual statistics through 2025, MWh
| 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.