Hybrid park planning with battery storage and grid connection
Hybrid park planning with battery storage and grid connection combines storage, grid, wind and PV into an efficient, economical overall system.
A future-proof energy supply emerges where storage and grid technologies are intelligently linked. With hybrid park planning, we combine the strengths of both systems and add wind and PV. This increases efficiency, security of supply and profitability. Hybrid systems place special demands on planning. Storage, generation and grid must work together technically, and the permit also considers the overall system. Anyone who plans these points together from the start creates planning certainty and avoids later redesigns.
Our experts develop integrated planning concepts that link energy storage, grid connection and control technology. From technical preliminary planning through the grid study to detailed design, we create the basis for operating your hybrid system. We take electrical, structural and permit-relevant requirements into account, as well as future grid strategies and regulatory requirements. For hybrid park planning with battery storage, the following applies: power requirements from the grid operator, for example on limiting active power or on the reactive power procedure, must be implemented by the hybrid system as a whole; which technical connection rules apply depends on the grid level, the plant configuration and the relevant power and type criteria, and storage must be considered separately.
In hybrid park planning with battery storage, several generating units, for example wind and photovoltaics, can share one grid connection point and one main meter. The storage adds a further component whose energy flows must be clearly allocated: how feed-in and energy flows are allocated to the individual plants and settled depends on the agreed metering concept and the applicable market and grid rules, and if a storage system can feed into the grid, the metering and settlement concept required must be coordinated with the grid operator and market partners. Storage in customer installations is distinguished by whether it charges from the grid, feeds into the grid and which generation and load components lie behind it, and the meter structure depends on this. If the storage is not to feed in, this can be limited via energy management. It helps above all to shift feed-in over time and to stay within the agreed connection capacity. If it is connected to an existing plant, this may constitute a substantial change under the grid rules; in any case it must be coordinated with the grid operator. Whether guarantees of origin must be taken into account for stored energy depends on the applicable statutory and market requirements.
The permit also benefits from the combined view. The legal classification of a storage system must be examined on the basis of its function, mode of operation and integration into the main plant, and a storage system that absorbs surpluses from a wind or PV plant may, depending on the federal province, be permissible on that plant's zoned area, whereas larger storage requires its own arrangement. The required storage power can be determined in advance with the load profile analysis for storage and grid, and the connection is clarified by the grid concept for storage. If the land has to be rezoned, support for the rezoning procedure for battery storage helps. What the combination with generation looks like is shown by the hybrid park planning for wind farms and the hybrid park planning for PV plants.
