When there’s extra wind or solar power on the grid in the Netherlands, some of it now goes to a new type of battery made from just three components: iron, air, and water. Called an iron-air battery, ...

Google plans to build a large-scale data center in Pine Island, Minnesota, backed by wind, solar, and an emerging battery technology sometimes called “rust power,” which stores energy using iron-air ...

An iron-air battery that stores and releases energy through a reversible rusting process has become the first of its kind to connect with a public electricity grid. On 30 July, the Dutch start-up Ore ...