Not necessarily. The key factor is the operating strategy. When the battery storage system is operated in a regionally coordinated and grid-supportive manner, it can reduce peak loads and help prevent grid congestion. Flexible grid connection concepts allow its operation to be specifically adapted to regional and local grid conditions.

A Flexible Connection Agreement (FCA) is a contractual arrangement between an asset operator and a grid operator under which an asset is connected to the electricity grid on the condition that its power output or electricity consumption can be limited or controlled under certain circumstances. The aim of an FCA is to prevent grid congestion and make more efficient use of existing grid capacity without requiring immediate and extensive grid expansion.Under a conventional grid connection agreement, an asset is typically granted a fixed maximum connection capacity that it can feed into or draw from the grid at any time. In many regions, however, this model is reaching its limits as power grids face periods of high utilization, driven in particular by the rapid expansion of renewable energy and the increasing number of flexible loads. A Flexible Connection Agreement provides an alternative approach: the asset is granted access to the grid while accepting that its power output or consumption may be temporarily reduced or controlled when required to maintain grid stability.Overall, FCAs aim to make the electricity system more flexible, efficient, and cost-effective. They shift the focus from a purely static grid connection towards a cooperative operating model between the grid operator and asset operator, using technical flexibility to safeguard the long-term stability and performance of the electricity grid.

The impact depends on how the battery storage system is operated. A regionally coordinated operating strategy takes local grid conditions into account and can specifically help reduce grid congestion. With the REGIOlink concept, green flexibility promotes an operating strategy that is at least grid-neutral.

The battery storage system is operated automatically. Its operation is controlled based on market and grid signals, as well as the contractual framework agreed with the grid operator. The operating logic can be specifically tailored to regional grid requirements.

The collaboration begins with a joint analysis of the local grid situation. Based on this analysis, a grid connection and operating concept is developed and contractually agreed, for example through an FCA. Throughout construction and operation, close coordination ensures safe and grid-compatible operation.