How much power do large battery storages currently provide?
3.6 GW
Energy Charts. Installed storage capacity and storage volume in Germany in 2026. Available here
Storage solutions are essential for the energy transition 2.0. They optimize the use of power from renewable sources by storing excess energy during peak production times and making it available again during low wind and solar conditions.
ContactOne of the biggest challenges of renewable energies is the fluctuating power generation: Photovoltaic and wind turbine installations produce varying amounts of energy depending on the time of day and weather conditions. This is precisely where storage technologies come into play. They absorb excess energy generated during high wind and sun conditions, release it during periods of low yield, and thus stabilize the power grid. Whether battery storage or other technologies – they are the key to a secure and reliable power supply, replacing fossil fuels and laying the foundation for a stable, sustainable energy system.
Both small and large battery storages significantly contribute to creating a sustainable and stable energy system. A look at current figures and forecasts shows how rapidly these technologies are evolving.
How much power do large battery storages currently provide?
Energy Charts. Installed storage capacity and storage volume in Germany in 2026. Available here
What is the forecast for 2045?
Federal Network Agency (2025). Available here
What role do small battery storages play?
Energy Charts (2026). Available here
What is the total potential of small storage units in the grid?
Federal Network Agency (2025). Available here
Storage solutions secure the power supply by cushioning production peaks and enabling more consistent energy availability. They stabilize the grid and contribute to ensuring a reliable and resilient energy supply – a win for the energy transition 2.0 and for communities becoming more independent from the national grid.
Stored electricity from times of high sun and wind can be fed into the grid during low production periods. This increases the share of renewable energies and reduces the need for conventional power plants. This saves CO₂ and actively drives decarbonization.
Storage provides control energy, which is energy that can be called up at short notice to balance fluctuations in the power grid and maintain grid frequency. They create the foundation for further expansion of photovoltaic and wind turbine installations, even with high proportions of volatile energies. Thus, storage becomes an indispensable component of the energy transition 2.0.
Next-generation storage technologies open up new possibilities: in addition to proven lithium-ion batteries, we are investing in innovative alternatives such as redox flow and solid-state batteries, as well as hydrogen storage. This leads to versatile, more sustainable, and efficient solutions that can be optimally used depending on project requirements.
With AI-based operational management, we optimize the interplay of energy production, storage, and distribution. Our smart concepts enable more efficient operation of storage systems and maximize the use of renewable energies – for a smart and sustainable energy supply.