Energy storage
Aquabattery
Revolutionising long duration energy storage
Commercialised by
Aquabattery
Alphen aan den Rijn
Eikenlaan 255C, 2404 BP Alphen aan den Rijn, Netherlands
Sustainable developement goals
Saltwater-based, long-duration storage enabling decarbonisation of industries, buildings and grid
AquaBattery offers a long duration energy storage solution by storing electricity in just table salt and water. By using abundant and locally available materials, the battery becomes affordable, scalable, sustainable and safe, without risk of fire hazard or explosion. What’s more, it enables the integration of intermittent solar and wind into constrained grids, ensuring that renewable energy is available at times when the sun does not shine and the wind does not blow.
The need
Europe’s energy transition faces hurdles in the intermittence of renewables, grid congestion, curtailment and high power prices. These place strains on energy security and competitiveness. To meet 2030 goals, 65 GW of long-duration storage is needed—but deployment lags far behind.
The solution
AQUABATTERY is a safe, sustainable and affordable long-duration energy storage system using saltwater. It offers flexibility beyond 8 hours, enabling reliable integration of intermittent solar and wind by balancing supply and demand. Using abundant and non-toxic materials, it ensures safety, scalability, reduces fossil fuel reliance and supports grid stability. This makes it ideal for decarbonising industries and power systems.
The value proposition
- Employs safe and scalable saltwater-based technology for flexible, long-duration energy storage, tailored to meet industrial energy needs sustainably.
- Targets behind-the-meter commercial and industrial customers facing high energy bills and decarbonisation goals.
- Optimises value from decentralised renewables by reducing energy costs, grid fees, and CO₂ emissions.
- The system helps manage grid congestion and ensures 24/7 access to clean, reliable renewable power.