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Conclusion and outlook

Future electricity supplies will continue to be characterised by centralised feed-in at the high-voltage level. Decentralised power generation systems will continue to be connected to the medium and low-voltage network. In future, however, they will also stabilise the grid. The main task will be in coordinating the various decentralised energy systems by means of bi-directional communication. For this reason interconnected operation will prevail in the near future, as is already planned and is increasingly being examined in virtual power plants.

Although there appear to be considerable conceptual differences between BEMI and centrally managed virtual power plants, both concepts pursue similar aims such as, for example, making it possible to forecast the complete load flow. Therefore BEMI and virtual power plants are certainly not incompatible concepts – in fact they are rather the opposite: correctly used, they mutually complement one another.

The BEMI concept is aimed at managing a large number of loads and decentralised energy systems with smaller outputs, whereas the centrally managed virtual power plant is better with small loads and decentralised energy systems with large outputs. In future energy supplies, both concepts could therefore play a key role in enabling the full technical potential to be exhausted. This presupposes, however, that virtual power plants are developed with suitable interfaces for grid operation and that the grid operator strategies are open to their use.


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Project coordination
ISET, Uni Kassel