Ore Energy Raises $43M for Long-Duration Storage
Ore Energy raised $43M to build iron-air batteries designed for multi-day electricity storage.
Short-duration batteries help the grid hour by hour. The harder problem is storing power across several days.
What happened
Dutch startup Ore Energy raised a $43 million Series A led by Plural and HV Capital, bringing total funding to $61 million. The company is building iron-air batteries designed to store electricity for up to 100 hours.
Iron-air technology uses abundant materials and targets longer storage duration than standard lithium-ion batteries. Ore is aiming at the gap between daily renewable fluctuations and multi-day grid stress.
Why it matters
As electricity demand rises and grids absorb more renewable power, storage needs are becoming more complex. Lithium-ion batteries are strong for short bursts, but they are not always the best fit for multi-day backup or prolonged low-renewable periods.
Long-duration storage could help grids handle wind and solar variability, industrial demand and large loads from AI data centres.
Ore’s funding shows that investors are still backing hard climate infrastructure where the bottleneck is clear and the market need is growing.
The bigger picture
The AI infrastructure buildout is making energy storage more strategic. Data centres want reliable power, grids need flexibility, and governments want cleaner systems without sacrificing uptime.
That creates room for storage startups that are not trying to beat lithium-ion everywhere, but instead solve the specific problem lithium-ion does not cover well: affordable, multi-day resilience.