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Redispatch stabilizes the power grid by adjusting electricity generation — battery storage systems can provide fast, flexible and compensated support.
Redispatch refers to the short-term adjustment of planned electricity generation by power plants or storage systems at the instruction of grid operators in order to prevent congestion in the power grid. The goal is to maintain grid stability when the network is heavily loaded or when electricity feed-in and demand are unevenly distributed.
If more electricity is generated in a region than can be consumed or transported — for example during periods of strong wind or PV generation — the grid may become overloaded.
Grid operators then intervene by reducing generation in the congested region (a redispatch measure) while increasing generation in other areas where grid capacity is available.
Since Redispatch 2.0 (introduced in Germany in 2021), smaller generation plants and storage systems with a capacity of 100 kW or more must also participate in redispatch processes.
Battery Energy Storage Systems (BESS) can actively support redispatch by quickly feeding electricity into the grid or absorbing excess energy when required.
• High-voltage and medium-voltage networks experiencing congestion
• Integration of Battery Energy Storage Systems (BESS) for grid-supportive operation
• Coordination of renewable energy systems such as PV and wind with storage solutions
• Reducing the need for costly grid expansion through flexible system operation
• Digital grid management platforms for redispatch coordination (e.g. Connect+)
• Affected system capacity (MW): share of generation capacity involved in redispatch
• Compensation payments: operators receive financial compensation for generation adjustments
• Reporting obligations: technical availability and operational data must be provided to grid operators
• Response time: storage systems can react particularly quickly to redispatch signals
• Grid relief potential: avoidance of costly grid congestion situations
Redispatch is a key instrument for real-time control of electricity grids, particularly in energy systems with a high share of renewable generation.
Modern Battery Energy Storage Systems (BESS) can make a measurable contribution to grid stability within redispatch processes and can receive additional remuneration for providing this flexibility. For companies, this creates both a grid-supportive function and an economically attractive use case.
