German municipal utility integrates energy storage and smart city pilots


Germany’s municipal utility Gelsenwasser will test the role of energy storage in ensuring grid stability under a smart city programme.

The utility is partnering with CellCube Energy Storage to deploy its electricity, gas and heat storage pilots under the Energy Storage in Practice (EnerPrax) initiative.

EnerPrax will be implemented at the company’s smart city site, Saerbeck Bioenergy Park.

CellCube has to date shipped its first vanadium redox flow battery energy storage system to the municipal utility.

The vanadium redox flow battery storage will be the backbone storage system for the EnerPrax project and will have the capacity to provide the grid with base load energy for eight hours.

The storage system will help the utility to address fluctuations in renewable energy generation.

This announcement follows the German Federal Ministry of Economic Affairs and Energy predicting close to 60% and 80% of the country’s energy being sourced from renewables by 2035 and 2050, respectively.

Stefan Schauss, CEO of Enerox, a  subsidiary of CellCube, said his firm will “… supply the long duration battery system for this pioneering project, which reflects the company’s vision and focus on becoming an integral part of future energy infrastructure solutions”.