Europe is betting big on a battery that runs for four days

Ore Energy secured a significant iron-air battery deal in continental Europe this week, marking its largest to date. The agreement involves supplying a 100 megawatt-hour (MWh) battery system to an unnamed European utility. This system is designed to provide four days of energy storage, a substantial increase over the typical 4-hour duration of current lithium-ion batteries. The iron-air technology developed by Ore Energy utilizes iron powder as its primary material, which is oxidized to release energy and then reversed to recharge. This process is projected to be more cost-effective and sustainable than lithium-ion alternatives, especially for grid-scale applications requiring extended discharge periods. The company stated that this deal validates the commercial viability of its long-duration energy storage solution and positions it for further expansion across the European market. Ore Energy aims to deploy its technology to support the integration of renewable energy sources like wind and solar, which often have intermittent generation patterns. The successful deployment of this 100 MWh system is expected to demonstrate the reliability and economic benefits of iron-air batteries for grid stability and energy security.