Imagine a giant battery that works like a water tower but is hidden underground. Instead of using expensive chemicals, it moves water to store energy and lets it flow back to create electricity when the wind stops blowing. It's like a traditional mountain dam, but it can be built almost anywhere, even near the coast.
Europe lacks sufficient scalable energy storage to meet net-zero goals, with a gap of 400 GW that cannot be filled by traditional mountain-based pumped hydro.
A full-scale operational Ocean Battery system demonstrated in a lake and a digital twin modeling the system from water to wire.
If you are an offshore wind farm operator dealing with intermittent power production and negative energy prices — this project developed the Ocean Battery that lowers the CAPEX for expensive offshore power grids.
If you are an infrastructure developer dealing with the lack of mountains for traditional pumped hydro — this project developed a location-independent underground storage system that expands the addressable market to 200 GW in Europe.
If you are a floating solar plant owner dealing with supply and demand imbalances — this project developed a GWh-scale ecofriendly storage solution to stabilize the power system.
The system is designed to substantially lower the CAPEX for the massively expensive offshore power grid, which in turn generates a high ROI.
Yes, the project aims to provide GWh-scale energy storage and targets a market gap of 400 GW of additional scalable storage in Europe.
The Ocean Battery is based on proprietary Key Enabling Technology and is protected by patents.
The project developed a digital twin that models the entire behavior of the system from water to wire.
Based on available project data, the project runs from July 2023 to June 2025, focusing on demonstrating technical and economic feasibility in a lake.
The project is driven by a highly focused 100% industry consortium consisting of 3 SMEs from the Netherlands. This structure suggests a lean, commercially-driven approach with no academic overhead, focusing entirely on the technical and economic validation of the product.
Contact Ocean Grazer BV in the Netherlands
Contact us to explore licensing or partnership opportunities for underground energy storage.
