pv magazine research of the market data register indicates there are 2,143,665 battery storage systems in Germany. 5 GWh of capacity, have been added. Almost 600,000 new stationary battery storage systems were installed across Germany in 2024, increasing the country's storage capacity by 50 percent year-on-year, according to preliminary data from the German Solar Industry Association (BSW Solar). A total of about 526,000 new batteries with a combined power output of almost 3. At the beginning of January 2025, Germany reported a total of.