Battery storage is a cornerstone of the energy transition. As a key component of the energy infrastructure, it can absorb fluctuations in feed-in from renewable energy sources, balance out peak loads and increase grid stability. Whilst battery energy storage systems – or BESS for short – were in the past mostly planned as a supplement to wind or solar farms, so-called stand-alone storage systems have also been gaining in importance for some time now. The reason is simple: they provide energy at short notice, independently of generation plants, thereby improving security of supply.
In 2025, DAL Deutsche Anlagen-Leasing (DAL) supported several storage projects. Of particular note is the structuring of the financing for a construction phase of one of Germany’s largest battery storage facilities in Leuna, Saxony-Anhalt: for two of the five units now in operation, the Savings Banks network partner arranged the project funding with the help of a banking consortium led by DAL/Deutsche Leasing Finance. The storage facility now has a capacity of 500 MWh, enough to supply around 125,000 households with electricity for one day. It is even set to be expanded to 800 MWh in the course of 2026. In addition to the financed phase in Leuna, DAL also invested in large-scale battery storage facilities in Brietlingen, Lower Saxony, and in Herford, North Rhine-Westphalia, in 2025. It is currently supporting numerous other BESS projects for its clients in collaboration with financing partners from the Savings Banks Finance Group.