Greece was a net exporter of energy in 2024, for the second time since 1990, while clean energy (RES and large hydro) covered just over half of the country's demand (50.2%).

Electricity demand increased by 5.5% compared to 2023, after 2 consecutive years of decline, a study by Green Tank shows, with demand growth mainly covered by fossil gas, which increased more than renewables between 2023-2024.

With 25,269 GWh in 2024, renewables (excluding large hydropower) were in the lead in electricity generation but lagged behind the cumulative production of the three fossil fuels (fossil gas, lignite and oil) by 3,171 GWh. This contrasts with what was the case up to the first half of 2024, when renewables outperformed fossil fuels in cumulative production. The reversal in the second half occurred mainly due to the increased contribution of gas.

Fossil gas with 21,343 GWh came in second place, just 623 GWh away from the historical high of 2021 (21,966 GWh). It increased by 35.9% compared to 2023, a much stronger upward trend than renewables (+19.8%). In fact, this increase came after 2 years of consecutive decline.

With 3,860 GWh, oil on non-interconnected islands ranked third, relatively close behind large hydro (3,482 GWh), which came in fourth place. Lignite followed in fifth place with 3,236 GWh, reaching an all-time low in 2024.

In 2024, net exports reached 307 GWh. Since 1900, when Eurostat data is available, this has only happened once more, in 2000, with only 11 GWh.

The large increase in fossil gas (+5,641 GWh) and secondarily RES (+4,177 GWh), as well as the much smaller increase in oil (+202 GWh) in 2024 compared to 2023, compensated for the sharp drop in net imports (-5,219 GWh), the significant increase in demand (+2,960 GWh), the further contraction of lignite production (-1,277 GWh), and the slight decrease in large hydro (-565 GWh).