Europe’s push toward renewable energy is accelerating a major expansion in battery storage, with new figures showing wide differences between countries already operating large-scale battery systems and those planning massive future growth.
According to Ember’s European and Türkiye Electricity Review 2026 reports, Germany currently leads Europe in operational battery capacity with 2.8 gigawatts (GW), followed by Italy at 2 GW. Batteries play a critical role in storing electricity generated from renewable sources such as solar and wind power, helping stabilize national grids and reduce dependence on fossil fuels.
A second group of countries has built capacities between 0.5 GW and 1 GW. Ireland has 0.92 GW, while Sweden stands at 0.75 GW. Bulgaria, France, Romania, Belgium, Finland and Netherlands also feature in the rankings with smaller operational systems already connected to the grid.
The picture changes sharply when planned projects are included. Turkey has emerged as Europe’s most ambitious battery market, with a project pipeline totaling 32.8 GW. That figure is more than triple the pipelines planned in Germany, Poland and Italy, each of which is preparing projects worth just over 10 GW.
Ufuk Alparslan, regional lead at Ember and author of Türkiye Electricity Review 2026, said investor interest surged after Turkish regulators opened unlimited grid capacity for storage-linked wind and solar projects.
If completed, Turkey’s planned projects would push its total battery capacity to almost 33 GW, placing it far ahead of every other European market. Germany would rise to 13.26 GW, while Italy and Poland would each exceed 10 GW.
Energy analysts say falling battery prices are helping fuel the rapid growth. Dr. Beatrice Petrovich, senior energy analyst at Ember, said grid-scale battery costs fell by 45 percent in 2025 compared with the previous year, continuing a decade-long trend of annual declines.
She added that stable government policy remains one of the biggest factors in attracting investment. Countries including Bulgaria, Italy and Spain have introduced measures that helped speed up battery deployment, while policy uncertainty in Germany has raised concerns among investors.
France remains among the weakest performers in battery expansion despite plans to more than double capacity to 1.12 GW. Analysts say the country’s heavy reliance on nuclear energy, which accounts for much of its electricity generation, has reduced pressure to invest aggressively in battery storage.
Questions also remain over whether Turkey’s full pipeline will eventually be completed. Analysts note that securing grid capacity does not guarantee projects will become operational, although the scale of planned investment highlights growing confidence in the country’s renewable energy sector.