Dynamic simulation of a local energy community

Project Results

Real and standardized load profiles of various consumers (e.g. a dairy, a bakery, and households) as well as measurement time series for distributed PV systems as generators were used for the simulation. The simulation considers the total electricity demand of the community and the self-consumption of the buildings with PV systems, as well as a possible grid feed-in of the PV generation in case of surplus. The resulting electricity demand must be covered at each time step by grid supply or LEC trading.

The results show that with a realistic distribution of participants (PV self-consumption share of more than 50%) a power distribution within the LEC of less than 10% is given. This configuration of existing PV systems with a high share of self-consumption is - measured in terms of billing costs - currently not profitable from an economic point of view.

Dynamic balancing has shown the importance of organizational details such as the allocation key of feed in or grid demand and correct accounting. By gaining this competence, we can contribute to the future design of "Local Energy Communities" in which both energy and economic efficiency are given.

- DI (FH) Gerhard Huber, Head of the project at RC Energy -