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Why hydrogen? Aren't fuel-cells are notoriously low density storage medium for power?
by Night_Thastus 3y ago
Why hydrogen? Aren't fuel-cells are notoriously low density storage medium for power?
- pfdietz 3y agoFuel cells don't store energy at all, so your point there makes no sense. Also, large scale hydrogen storage for the grid would likely use combined cycle power plants to convert the hydrogen back to electrical energy, not fuel cells. Hydrogen is cheap for long term storage because underground storage caverns can be extremely cheap (solution mined in salt formations), less than $1 per kWh of storage capacity. This is how natural gas is often stored, after all. There are alternative e-fuels but they have various problems. Ammonia is touted a bit below this comment in these responses.