First twins in large-scale energy storage: SemperPower starts build of a 68MWH ESS

Press release

With justifiable pride, SemperPower announces the start of construction of its third large-scale battery energy storage project: Project Pollux. This battery system, boasting 30 megawatts of power and 68 megawatt-hours of capacity, will on its commissioning in Autumn 2023 be the largest operating battery project in the Netherlands, and one of the largest in Northwest Europe .

Together with our project partners, we’ll be starting the construction phase, followed by the operational phase later this year. Essent will be using the 30 MW/68 MWh battery system in the long term to overcome the volatility of its sustainable energy portfolio. This will again contribute to a more rapid integration of sustainable energy into the Dutch electricity market. As the supply and installation partner, Alfen is going to build the system on the North Sea Port site in the middle of the energy hub in Vlissingen-Oost, immediately next to its twin, Castor. The system will be connected directly to the Stedin grid. The project is being made possible jointly by Triodos Bank, a.s.r. and Meewind, a sustainable investment fund manager, as financing partners.

Dennis Schiricke (CEO, SemperPower): 

“We’re proud that we have been able to announce our third large-scale battery project on such short notice. Once again this underscores SemperPower’s development capabilities and the leading role being played by the business with its partners in the energy transition.  We continue to accelerate the energy transition together! The timing – following the successful ‘Power the Future’ event and the associated launch of our new website and house style – is also optimal.”   

About SemperPower B.V. 

SemperPower develops, finances and operates large-scale energy storage systems and jointly with its partners aims to accelerate the energy transition. With the increasing generation of sustainable energy, balancing supply and demand in the electricity market is a growing challenge. SemperPower’s battery energy storage systems can store sustainable energy at times of over-supply, releasing it again at times when the market so demands. It additionally offers energy traders and energy companies the opportunity to support and further expand their sustainable portfolio. 

SemperPower is justifiable proud to be the largest developer of independent large-scale energy storage in the Netherlands, with aBESS portfolio of 70MW / 141MWh in total.