For the first time, wind and solar power together generated more electricity than fossil fuels across the European Union over a full calendar year. In 2025, renewables supplied roughly 47.3 percent of the bloc’s net electricity while fossil fuels fell to about 29 percent, a gap wide enough to confirm that coal and gas plants are no longer the dominant source of electrons on the continent. The shift happened even as total generation rose, meaning clean sources absorbed all new demand and then some.
Renewables crossed the 47 percent threshold as demand grew
The European Commission’s verified Emissions Trading System data for 2025 show that net electricity generation across the EU increased by 1.7 percent compared with 2024. That rise did not translate into higher fossil-fuel burn. Instead, renewables edged up from 47.2 percent of net generation in 2024 to approximately 47.3 percent in 2025, according to the same Commission release. The gain looks small in percentage terms, but it arrived on top of a larger base of total output, which means the absolute volume of clean electricity grew faster than the headline share suggests.
Solar energy drove much of the change. The Commission noted that solar overtook hydropower as the EU’s second-largest renewable electricity source after wind. That ranking shift reflects years of accelerating rooftop and utility-scale installations across southern and central Europe, and it carries practical consequences for grid operators who must now manage solar’s midday peaks at a scale previously associated only with wind.
For 2024, Eurostat reported that 46.9 percent of net electricity generated in the EU came from renewables. The slight methodological gap between net and gross generation figures explains why different EU institutions cite slightly different shares for the same year. The Council of the European Union, for instance, places renewables at over 48 percent of gross electricity generation in 2024, while Eurostat’s separate preliminary release puts the figure at 47.3 percent of total electricity production. Both confirm the same directional story: renewables now produce far more power than fossil fuels, which according to Eurostat accounted for 29.2 percent of total production and 0.81 million GWh in 2024.
Updated statistics for 2025 reinforce that pattern. In its most recent bulletin, Eurostat found that the share of electricity from renewable sources continued to rise while the fossil contribution declined in absolute terms, even as overall demand ticked higher. That aligns with the Commission’s ETS findings that power-sector emissions fell again in 2025, suggesting that the additional clean generation is directly displacing coal and gas rather than merely meeting incremental demand.
Solar’s rise tightens pressure on coal and gas plants
The speed of solar’s ascent matters beyond electricity statistics. If the member states where solar capacity grew fastest in 2025 also show the steepest drops in power-sector ETS emissions when verified 2026 data arrive next spring, it would confirm a direct displacement effect: each new gigawatt-hour of solar output is retiring a corresponding slice of fossil generation rather than simply adding to an already oversupplied grid.
Early signals point in that direction. The Commission’s ETS release confirmed that covered emissions continued their downward trend even as electricity demand climbed. Wind accounted for 17.5 percent of gross generation in 2024, according to the Council infographic, while coal fell to 9.7 percent. Gas held a larger slice at 15.9 percent, but the combined fossil share still trailed renewables by nearly 20 percentage points.
That imbalance is likely to widen as new solar parks and rooftop systems connect to the grid. Developers have been racing to take advantage of falling panel prices and streamlined permitting in several member states. Because solar output is highly predictable at the day-ahead scale, system operators can schedule conventional plants more sparingly, running gas units mainly during evening peaks and cold snaps and leaving coal stations idle for longer stretches.
For households and businesses, the practical effect is twofold. More renewable generation tends to suppress wholesale electricity prices during sunny and windy hours, which feeds through to retail bills with a lag. At the same time, shrinking fossil output reduces the number of ETS allowances that power companies need to purchase, lowering one of the cost inputs that gets passed on to consumers. Neither effect is automatic or uniform across all 27 member states, but the direction is consistent with the data.
There are limits, however. As solar’s share rises, midday prices can drop so low that some plants curtail output, especially when grids lack sufficient interconnections or storage. In those conditions, gas plants may still earn a premium for providing flexibility, even if their total annual generation falls. Policymakers are therefore watching not just how much fossil power is displaced, but also how reliably the system can operate during long periods of low wind or sun.
Gaps in the data leave key questions open
Several pieces of the picture are still missing. No primary Eurostat table yet breaks out exact 2025 monthly or quarterly wind-plus-solar totals versus fossil generation, so the precise month when the crossover first occurred on a rolling 12‑month basis is not publicly documented. Country-level 2025 generation figures by fuel type have not been published with the granularity that Eurostat provided for 2024, leaving analysts to work from EU‑wide aggregates and secondary summaries.
The link between faster solar deployment and lower installation-level ETS emissions also lacks direct confirmation in the verified 2025 data. The Commission’s release discusses power-sector trends in broad terms but does not attribute specific tonnage reductions to solar or wind individually. That granularity will matter when policymakers decide whether to accelerate permitting for solar farms or redirect support toward grid-scale storage and transmission upgrades that help existing wind and solar capacity deliver more reliably.
Another open question concerns cross-border trade. Higher renewable output in one country can cut fossil generation in a neighbor if interconnectors allow surplus power to flow freely. Current EU‑wide statistics do not fully capture these displacement effects, which means national governments may underestimate how much their own policies benefit or burden partners in the single electricity market.
Data gaps also complicate assessments of security of supply. While aggregate figures show that renewables have overtaken fossil fuels on an annual basis, they do not reveal how close the system comes to shortfalls during extreme weather events. Without more detailed hourly and seasonal breakdowns, it is difficult to judge how much dispatchable backup capacity is still needed as coal plants retire.
Policy tests ahead as renewables pull ahead
Policy debates will hinge on how decision-makers interpret the emerging numbers. If they conclude that the renewable lead over fossil generation is stable and widening, they may feel more confident tightening ETS caps, phasing out coal support schemes, and raising national renewable targets. Conversely, if they worry that the current balance depends on unusually favorable weather or temporary demand shifts, they may move more cautiously.
One immediate test lies in capacity market design. No national regulator has publicly confirmed whether the 2025 outperformance altered upcoming capacity auction designs or subsidy schedules. That is the next concrete development to watch. If auction volumes for new gas-fired backup capacity shrink in 2026 bid rounds, it will signal that governments view the renewable surplus as durable rather than cyclical. If they instead lock in large new gas contracts, it would suggest lingering doubts about the ability of wind and solar to cover peak demand without frequent support from fossil plants.
Investment signals for grids and storage are another pressure point. The rise of variable renewables has already prompted calls for faster permitting of transmission lines and for clearer rules on how batteries and other flexible resources can participate in wholesale and balancing markets. Here, the statistics showing renewables above 47 percent of generation provide political cover for reforms that would have seemed premature a decade ago.
Finally, the EU’s experience is being closely watched beyond its borders. The combination of rising electricity demand, falling emissions, and a structural shift away from fossil fuels offers a test case for other regions contemplating aggressive renewable targets. Whether that example proves persuasive will depend on how well Europe manages the next phase: turning an annual majority for clean power into a resilient system that can withstand shocks without backsliding toward coal and gas.
As more detailed 2025 and 2026 data arrive from Eurostat releases and ETS registries, analysts will be able to draw firmer conclusions about which technologies and policies delivered the biggest emissions cuts. For now, the headline is clear enough: wind and solar have pushed fossil fuels off the top of Europe’s power mix, and the direction of travel points toward an electricity system where renewables set the pace rather than merely filling the gaps.
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*This article was researched with the help of AI, with human editors creating the final content.
