Neat News 3720 (added 2026-11-10)
Iron as energy storage
A problem with the transformation to renewable energy is to store it for times when there is no sunlight and no wind. Now a new carbon neutral way has been developed, by using iron dust that can be burned at such times. It can be retransformed using hydrogen to remove the oxygen, where the hydrogen is produced with renewable energy at times when there is sufficient sun or wind.
related: #iron #energy_storage