Image: E.ON

The first IElectrix mobile storage system has been connected to the grid by E.ON in Friedland in north Germany.

The system, one of two that E.ON is implementing this year, is aimed to demonstrate the role of mobile storage in addressing grid challenges at the local level.

Mobile storage is a flexible storage solution that can be readily transported and rapidly deployed to a particular location.

This first system is located in the network area of E.ON’s subsidiary E.DIS in Friedland in Mecklenburg-Western Pomerania. In this area there is approximately twice as much renewable energy generated as is consumed.

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E.ON’s second system will be connected to the distribution grid near the holiday spot of Zánka in western Hungary. There, the overnight peak load is close to its limit but due to distribution code changes PV plants cannot be connected to the medium voltage grid.

“This is our response to the rapid transformation of the energy system towards ever more decentralised generation,” says E.ON’s chief operating officer – Networks, Thomas König. “With our mobile storage, we can optimise network expansion, reduce the shutdown of renewable energy plants and feed in more locally generated green energy quickly and cost-effectively.”

The Horizon 2020 supported IElectrix is focussed on the development of mobile storage as a fast and cost effective solution to reducing local grid overloads and promoting decentralised generation in households and communities.

The 42 month project, which started in May 2019, brings together 15 partners from eight EU countries and the distribution grid operator Tata Power from India.

Mobile storage demonstrators

Two further demonstrators are being developed. One of these is to be implemented by Energie Güssing in Güssing in eastern Austria, which will investigate the role of the technology in meeting local energy community objectives. Güssing is part of the ÖkoEnergieland local energy community.

The second to be implemented by Enedis and Tata Power Delhi Distribution in a district in New Delhi will address the implementation of local energy communities using local PV units and the self-consumption approach.

In the lead up to the demonstrations, project representatives have been undertaking engagement with local communities to gain insights into their perspectives and build support.

Enedis is the IElectrix project coordinator and E.ON is the technical director.