Europe’s Energy Storage Capacity Is Expected to Reach 100 GW This Year, With Projections to More Than Double by 2030

Energy storage capacity across the EU, the UK, Norway, and Switzerland is set to reach 100 GW by the end of November. Growth has surged since 2020, driven by both long-established and emerging technologies. Pumped hydro remains the largest contributor at 50.6 GW, while battery storage has climbed rapidly to 44.8 GW, according to analysis from LCP Delta and Energy Storage Europe.

Looking ahead, Europe is on track for a dramatic scale-up. Total storage capacity across all technologies is expected to more than double by 2030, rising 115% to around 215 GW. That implies an annual build rate of roughly 20–25 GW per year, highlighting how central storage has become to a resilient, renewables-led energy system.

Battery storage is leading the momentum. This year alone, batteries added 4 GW of new utility-scale installations, overtaking pumped hydro growth. By 2030, battery capacity is forecast to reach 163 GW. Today’s battery fleet includes 17 GW of grid-connected large-scale systems and 27.8 GW on the customer side, showing that storage is expanding both on the network and behind the meter.

Residential storage is also maturing rapidly. Around 18 million European homes now have solar PV, and four million of those include batteries. After the sales peak of 2022–2023, the home battery market is stabilising — with renewed growth expected from 2027 as solar demand rebounds and electrification accelerates. Dynamic tariffs and new financing options will further strengthen the case for household storage.

Germany continues to lead Europe’s home battery rollout with 2.1 million systems, followed by Italy (780k), the UK (280k), Austria (200k), and Belgium (160k).

Industry leaders describe storage as Europe’s fastest-growing clean technology — a cornerstone for competitiveness, energy security, and renewable integration. Reaching 100 GW is more than a headline number: it’s a turning point that signals storage is moving from early adoption to mass deployment.

At GLEG, we see this growth as essential to Europe’s energy transition. Scaling storage unlocks higher renewable penetration, improves grid flexibility, and supports a more affordable, reliable energy future. The next decade will be defined by how quickly we turn this momentum into on-the-ground projects — and we’re excited to be part of that journey.