Electrification of the world drives the power demand. And Net-zero ambitions drive high renewables growth, which means more power demand with intermittent supply. High reliance of intermittent renewables raises security of supply concerns, and with that business continuity. Grid congestion & reliability hinder bussines growth. About 10% curtailment and around €600bln needed grid expansion in EU impossible – making the grid unreliable to support business growth.
The renewable energy transition is not only essential to tackle climate change but also a strategic priority for Europe’s energy security and long-term competitiveness. To stay on track with its 2030 climate and energy targets, the EU must install 592 GW of solar and 510 GW of wind capacity, according to the International Energy Agency. Achieving this ambitious buildout requires 200 GW of energy storage to ensure stable grid operation and enable the integration of variable renewable energy sources. Of this, 65 GW must come from novel long-duration energy storage (LDES) technologies—capable of delivering power for 8 to 100 hours—up from just 4.5 GW currently operational or under development.
Aquabattery’s solution is a salt water flow battery to create power flexibility and to provide the world with highly affordable Long duration energy storage that is clean, infinitely scalable, and safe to enable a responsible transition to a 100 % renewable energy system.
As part of the EIC Accelerator project, AquaBattery will develop a modular power unit rooted on its membrane stack based patented technology, marking a significant step toward scalable, long-duration energy storage. Housed in a standard sea container, this compact unit is designed for easy transport and installation, enabling rapid deployment across diverse applications—from microgrids to utility-scale storage. The membrane stack facilitates the controlled flow of saltwater during charging and discharging, converting renewable electricity into stored chemical energy and back with high efficiency. This modular approach not only enhances flexibility but also dramatically lowers deployment barriers, supporting decentralised and resilient energy systems. With this development, AquaBattery aims to accelerate the adoption of sustainable, non-toxic energy storage and make a meaningful contribution to Europe’s clean energy transition & Clean Industrial Deal’s goals.
