During the second quarter of 2025, renewable energy sources accounted for 54% of the EU’s net electricity generation, according to Eurostat data. This represents an increase of 52.7% compared with the same period in 2024.
The growth is mainly due to solar energy, which generated a total of 122 317 gigawatt-hours (GWh) during the second quarter of 2025. The share of this source in the overall electricity mix was 19.9%.
Moreover, in June, for the first time, solar energy (22.0%) became the leading source of electricity generation in the EU, surpassing nuclear (21.6%), wind (15.8%), hydro (14.1%) and natural gas (13.8%).
Among EU countries, during the second quarter of 2025, Denmark recorded the highest share (94.7%) of renewables in net electricity generation, followed by Latvia (93.4%), Austria (91.8%), Croatia (89.5%) and Portugal (85.6%).
The lowest shares of renewable energy sources were reported in Slovakia (19.9%), Malta (21.2%) and the Czech Republic (22.1%).
In Bulgaria, electricity production in the period April–June 2025 reached 8313 GWh, marking an increase of 7.9%. The share of renewables in the country’s electricity mix decreased from 44% (Q2 2024) to 40% (Q2 2025). This decline was due to lower production from hydro and wind energy, against the background of increased output from nuclear and fossil fuels.
Solar power continued its strong growth, reaching 1,943 GWh, which represented a significant increase of 23.4% compared with the same period in 2024.
Most of the electricity generated from renewable sources came from solar (36.8%), wind (29.5%) and hydro (26.0%), followed by combustible renewable fuels (7.3%) and geothermal energy (0.4%).
