NaibofTabr , 4 months ago

hydrogen made during wind/solar spikes

The rest of it’s good, but hydrogen is not a good energy storage solution. It’s a nasty thing to try to keep in a tank because of problems like embrittlement.

Hydrogen can be useful as a portable energy source but it’s not something you want to try to keep around in bulk. For most applications it’s safer to generate hydrogen right before you intend to use it.

Pumped hydro is still the most cost-effective and safe way to store excess energy.