Kyon Energy to build 146.5 MW battery storage project in Germany

Kyon Energy has announced plans for a 146.5 MW/296 MWh battery energy storage system at the Mehringen substation in Lower Saxony, Germany.

Construction is scheduled to begin in July or August of this year, with commissioning planned for October 2027. Kyon Energy said the timeline is largely determined by delivery times for high-voltage transformers and the modifications required at the substation to enable grid connection.

The Mehringen substation is considered an important grid node in the region. According to Avacon’s energy monitor, the storage system would be capable of supplying the entire Nienburg district, including industrial consumers, for around 10 hours.

Kyon Energy said the project will comprise 65 containerized lithium iron phosphate (LFP) battery units. Forty-six medium-voltage stations will convert direct current from the batteries into alternating current and increase the voltage level to 30 kV. Two high-voltage transformers are planned for the grid connection.

The project site covers around 3.3 hectares. The company said part of the area will be used for mitigation measures, including visual screening berms, hedges, and grassland.

The announcement follows the start of construction in May on three large-scale battery storage projects in North Rhine-Westphalia, Saxony-Anhalt, and Schleswig-Holstein, which will have a combined power capacity of 273 MW and storage capacity of 552 MWh.

From pv magazine Deutschland