From September 2025 through August 2026, just over half of Greece’s electricity consumption came from low-carbon sources, while almost half came from fossil fuels. Wind supplied about 21%, solar 18%, and hydropower 12%, giving clean electricity a combined share of roughly 51%. Gas remained the largest individual source at about 41%, with coal contributing 5% and oil 3%. Greece therefore has a substantial clean electricity foundation, but its continued reliance on fossil fuels leaves considerable scope to reduce climate-changing emissions and air pollution.

Is Electricity Growing in Greece?

The figures show a mixed picture rather than clear growth in overall electricity consumption. In 2026, consumption stood at about 5,485 kWh per person—roughly 777 kWh, or 12%, below the historic peak of 6,261 kWh in 2008. Being below that peak does not establish the latest year-on-year trend, but it highlights the importance of expanding electricity supply for future electrification and AI-related demand. Encouragingly, low-carbon electricity generation reached a new record of about 2,815 kWh per person, exceeding the previous 2024 record by 251 kWh, or nearly 10%.

Suggestions

Greece should build on its already substantial wind and solar generation while considering nuclear electricity as another route to a larger clean electricity supply. Spain offers a relevant European example of combining technologies, with nuclear supplying 18% of its electricity; nearby Bulgaria and Slovenia obtain about 38% and 40%, respectively, from nuclear, while France reaches roughly two-thirds. For wind, Denmark generates 57% of its electricity from this source, demonstrating room for growth beyond Greece’s current share. Sunny regions also offer useful solar examples: the US states of Nevada and California generate about 35% and 31% of their electricity from solar. Greece can draw on these examples through sustained investment in solar and wind, stronger grids, storage, and planning for nuclear generation.

History

Greece’s low-carbon electricity history shows fluctuating hydropower alongside important wind and solar gains. During the 2000s, hydropower fell by 1.4 TWh in 2001 and 3.1 TWh in 2007, but rose by 1.9 TWh in 2003 and 1.5 TWh in 2009. The 2010s brought further swings: hydro increased by 1.8 TWh in both 2010 and 2013, dropped by 3.2 TWh in 2011, and alternated between gains and declines through 2019. Solar delivered a notable 2 TWh increase in 2013. In the 2020s, wind added 2 TWh in 2020, hydro gained 2.5 TWh in 2021, and solar added 1.8 TWh in 2022 and 1.3 TWh in 2023. Hydro’s 1.4 TWh decline in 2022 and wind’s disappointing 1.5 TWh decline in 2025 underline the need for sustained clean electricity expansion, while hydro’s strong 2.6 TWh increase in 2026 is an encouraging latest development.

Electricity Imports and Exports

Balance of Trade

* 12M = Last 12 months (Sep 2025 – Aug 2026) — a rolling 12-month period, not a calendar year.