Solar energy accounted for a record 25% of the European Union's electricity generation in June 2026, surpassing all other sources for the first time. The bloc generated 52 terawatt-hours (TWh) from solar power, up from 47 TWh in May, according to Ember think tank.
Key Details
This increase marks a significant rise in solar's contribution to the EU's energy mix, which was only 10% in June 2021. The growth is attributed to rapid installations, with 65.1 gigawatts (GW) of new capacity added in 2025. Solar power has now become the largest single source of electricity in the EU, ahead of nuclear (21%), gas (15%), wind (14%), and hydro (12%).
Countries like Spain are leading the transition, with solar providing over a third of its electricity in June. The rapid adoption of solar energy is seen as a response to rising energy demands, particularly during heatwaves that have increased the need for cooling solutions. Chris Rosslowe, a senior analyst at Ember, noted,
Solar's rise has been truly stratospheric, beating prediction after prediction.
Background
The trend reflects a broader shift in energy policy across the EU, as governments aim to reduce reliance on fossil fuels and enhance energy security. In 2026, 18 EU countries reported new monthly records for solar power generation, highlighting a collective move towards renewable energy sources.
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The increased reliance on solar energy could lead to reduced demand for fossil fuels, particularly natural gas and coal, as countries transition towards cleaner energy sources. Investors will watch for further developments in renewable energy policies and installation rates in the coming months.