German energy supplier Avacon and Rolls-Royce are working together on a research project to analyse the intelligent integration of battery storage into the power grid. Based on field testing, the aim is to show how energy communities, PV systems and mtu battery storage can be linked to contribute to an efficient energy supply and to stabilise the energy system. Avacon and Rolls-Royce are already collaborating on a second research project. The aim is to use battery storage to moderate generation peaks from PV systems and bring them into line with electricity consumption.

A ceremony has been held at which Lower Saxony’s minister for Economic Affairs, Olaf Lies, symbolically commissioned the mtu battery storage system in northern Germany.

The project is based on the concept of an energy community: local households store electricity they generate themselves from PV systems in home storage units, and surplus energy is also fed into the central large-scale battery storage system. The interaction between home and large-scale battery storage is controlled by means of intelligent algorithms. On the one hand, this should help to balance out the volatility of power generation from PV systems. On the other hand, the project aims to increase the local self-consumption rate to up to 100 % at times. This relieves the power grid and increases the overall stability of the system.