SemperPower starts Dutch energy storage project


The Netherlands – Project Pollux, SemperPower’s third utility-scale energy storage project, is now in the realization stage and will help integrate renewable energy into the Netherlands electricity system.

The battery system, which has a capacity of 68 megawatt hours and 30 megawatts of power, will be the biggest battery project in the Netherlands and one of the biggest in North-West Europe when it starts running in the fall of 2023.

Renewables integration

Along with project partners, the corporation started the project’s realization phase. Later this year, the exploitation phase will start. Essent will use the 30 MW/68 MWh battery system to support its portfolio of renewable energy sources. By doing this, Project Pollux will facilitate a quicker integration of renewable energy into the Dutch electricity market.

Alfen, Castor’s identical twin, will provide and construct the battery system for the North Sea Port in Vlissingen-Oost after being selected as an EPC partner. The system will have direct connection to the Stedin-network. The project’s financial partners are Triodos Bank and Meewind, a manager of sustainable investment funds.