SolarPower Europe Projects Battery Installations Topping 50 GWh This Year as EU Gap Widens
A lobby report released Tuesday forecasts 44% growth in European battery storage this year, yet cumulative capacity by 2030 would still fall short of the EU's own adequacy threshold.
SolarPower Europe's latest market assessment, published on Tuesday (2026-06-23), projects European battery storage installations will top 50 GWh this year, up from 36 GWh in 2025, when growth itself had accelerated 48% from the prior year. The association estimates annual additions will reach as much as 138 GWh by 2030, a fourfold increase from 2025 levels, driven by utility-scale projects.3
The urgency behind those projections lies in what happens when storage is absent. Power prices in Europe are turning negative at sharply rising rates. In Germany specifically, the Economist reported that the share of hours with negative prices reached 5% for the full year in 2024, up from 3% in 2023, and then climbed to 10% in the first eight months of 2025. Battery operators capture the spread by charging when prices go negative and discharging at peak. Michael Waldner, chief executive of Pexapark, a Zurich-based renewable energy consultancy, put it directly: "The market is screaming for capacity."2
Yet even on the current build-out trajectory, the installation pace falls short of what the EU itself says it needs. SolarPower Europe estimates the bloc needs 600 GWh of battery capacity by 2030 to align with its energy security, competitiveness and decarbonisation objectives. Its own projections put capacity at 470 GWh by then — a six-fold increase from current levels, but roughly 22% below the threshold. "Europe's battery market is moving in the right direction, but we are not yet where we need to be," the association said in the Tuesday (2026-06-23) report.3
Co-located capacity (batteries installed alongside renewable generation rather than as standalone grid assets) is expected to be a significant growth driver. SolarPower Europe projects co-located installations to rise from 6 gigawatts in 2025 to as much as 35 GW by 2030. For project developers, the pairing improves energy capture rates by shifting output to higher-price hours; for corporate buyers, it reduces the curtailment risk that has made long-term offtake pricing increasingly difficult.3
That dynamic is already reshaping the PPA market. Deals covering 15 GW were signed across Europe in 2025, about 20% fewer than the year before, Pexapark chief operating officer Luca Pedretti told Montel's Plugged In podcast, released on Thursday (2026-05-21). A market "inundated with renewables" has suppressed capture rates and driven the frequency of negative prices higher, Pedretti said. Battery-linked deals have emerged as the fastest-growing segment of the PPA rebound in response.1
Geographic spread offers another measure of the market's development. The top five European markets accounted for 62% of all battery installations in 2025, down from roughly 80% in 2024, SolarPower Europe said. The narrowing share suggests that project economics are beginning to work across a wider set of national grids, not just the markets with the highest renewable penetration.3
European grids added 8.8 GWh of battery storage in 2024, ten times the amount deployed in 2020, according to Economist data. The EU's proposed next seven-year budget would raise grid spending to over €30bn from €5.8bn in the previous cycle, a potential source of capital for projects currently held up in connection queues.2
Whether that is enough to close the adequacy gap by 2030 turns on whether permitting and grid connection processes can keep pace with developer ambition. Europe's connection queues are already congested, with speculative applications compounding the problem. SolarPower Europe's own numbers put the required trajectory at 138 GWh of annual additions by the end of the decade, well above any rate yet delivered in a single year.3