Large number of storage projects awaiting grid connection

13.11.2025

Source: E & M powernews

For the first time, the Federal Network Agency has published data on connection requests and commitments for battery storage systems. The figures show a strong growth in market interest.

On November 12, the Federal Network Agency published data on connection requests and approvals for battery storage systems above the medium-voltage level for the first time. In 2024, grid operators across Germany recorded 9,710 connection requests for battery storage systems from the medium-voltage level upwards, i.e. with connections to grids above 1 kV. Home storage systems for private individuals, which are naturally connected to the low-voltage grid, are not included in these figures from the Federal Network Agency. The systems applied for add up to a planned output of around 400,000 MW and a storage capacity of 661 million kWh.

There are currently 921 larger battery storage systems in operation in Germany. These have a net nominal output of around 2,300 MW and a storage capacity of 3.2 million kWh. The majority of projects are therefore still in the planning or approval phase.

3,800 connection commitments - but no guarantee of realization

In 2024, the grid operators issued around 3,800 connection commitments. These relate to both new inquiries and projects from previous years. The committed plants have a combined capacity of 25,000 MW and 46 million kWh of storage capacity. Although a connection commitment obliges the grid operator, it does not guarantee that the project will actually be implemented.

With this publication, the Federal Network Agency is presenting standardized data for battery storage requests at distribution grid level for the first time. It comes from the 2024 monitoring survey, with data for 2025 to follow, according to the agency.

The Federal Network Agency provides detailed information on the figures on its smard.de platform.

Author: Heidi Roider