Methodology:
All figures are based on SolarPower Europe’s best knowledge at the time of publication.

Segmentation for BESS: Residential (<20 kWh); Commercial and Industrial (20 kWh to 1,000 kWh); Utility-scale (>1,000 kWh). For residential and commercial BESS, segmentation is based on the type of PV system coupled with the storage device. Industrial and utility-scale BESS can be either stand-alone or hybridised with industrial and large-scale power plants. SolarPower Europe’s methodology includes only gridconnected battery storage systems.

Segmentation for solar PV: Residential (<10 kW), except for Austria, Germany and Switzerland where the segmentation is extended to <20 kW; Commercial (<250 kW); Industrial (<1,000 kW); Utility-scale (>1,000 kW, ground-mounted). SolarPower Europe’s methodology includes only grid-connected solar PV systems.

Installed PV capacity is always expressed in DC.

Disclaimer:
This report has been prepared by SolarPower Europe and is provided for general information purposes only. Nothing in this report should be interpreted as an offer or recommendation of any products, services, or financial instruments. It does not constitute technical, investment, legal, tax, or any other form of advice. Recipients should consult their own advisors as needed. The information herein is based on sources believed to be accurate, but SolarPower Europe does not warrant its completeness or accuracy and assumes no obligation to update it. SolarPower Europe shall not be liable for any direct or indirect damages resulting from the use of this report. Unless otherwise stated, all market intelligence data and resources are the intellectual property of SolarPower Europe. Monetisation of this report or its contents by third parties is strictly prohibited without prior written approval from SolarPower Europe.

EU Battery Storage Market Review 2025

28 January 2026