Fraunhofer Institute for Solar Energy Systems ISE
The applications for which a storage system can be used depends not only on the operator's objectives but also on the given technical and regulatory framework. An appropriate classification is carried out as part of an initial conceptual planning with the aim of achieving an economic or ecological optimization of the underlying energy system of producers and consumers through the storage installation. A typical example of this is the use of a storage system in an industrial company to reduce energy-related costs, as this enables the capping of production-related load peaks or the optimization of the self-consumption of locally generated solar energy. The conceptual planning of such storage applications includes, at the technical level, a specification of the energy system under consideration, which provides an overview of the specific framework conditions, including the generators and consumers present in the grid. In addition, the intended business model is defined at the economic level, which allows for the economic operation of the storage system under the given regulatory requirements.
In general, the economic and ecological value of a storage system can be increased by addressing more than one application. For example, the storage system in the aforementioned industrial company could be used both for peak shaving and for optimizing self-consumption. However, due to the growing complexity, multiple use poses particular challenges for the planning and subsequent operation of the storage system, both in terms of technical and regulatory aspects.
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