Ore Energy develops long-duration energy storage systems based on iron-air battery technology. Founded in 2022 as a spin-out of TU Delft, the Amsterdam-based company draws on eight years of technology development by its co-founders and works across electrochemistry, reversible rusting (iron oxidation) energy storage, and grid-scale storage.
The company's iron-air battery systems use iron, water and air, storing energy for over 100 hours through reversible rusting and unrusting. Discharging breathes in air, converting metallic iron to rust to generate current; charging breathes out air, reverting the rust to metallic iron. The systems are modular, scaling from MWh to GWh deployments for utility grids and data centres, and are intended to let wind and solar power supply electricity when the sun does not shine or the wind does not blow.
Ore Energy has secured over €60 million in total funding, including a $43 million Series A, backed by climate and energy investors Plural and HV. The company plans to connect its first batteries to the grid next year, begin large-scale production in 2027, and support full grid decarbonisation by 2030. Its stated goal is to drive the global sustainable energy transition.
