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For week long storage there is always hydrogen, if alternative battery chemistries don’t pan out.
by adrianN 3y ago
For week long storage there is always hydrogen, if alternative battery chemistries don’t pan out.
- KptMarchewa 3y agoHydrogen conversion is not only very inefficient, the hydrogen plants are also extremely costly. Batteries are better bet.
- jofer 3y agoOnly for short term storage. Hydrogen is meant for longer term storage where batteries have too high of a losses. E.g. winter vs summer.
- KptMarchewa 3y agoWay way way cheaper to 10x overbuild renewables than produce (and store) hydrogen at that scale.
- jofer 3y agoIt's actually not. There's a reason there are a lot of hydrogen storage projects for electricity generation going on.
- jofer 3y agoHydrogen is even better for longer-term storage (e.g. seasonal). Produce hydrogen via electrolysis from solar in the summer, then power things when it's cloudy + low sun angle in the winter. There are quite a few major hydrogen storage projects in progress that do exactly that, FWIW. E.g. https://www.energy.gov/lpo/advanced-clean-energy-storage https://www.energy.gov/lpo/advanced-clean-energy-storage (Disclaimer: My wife works on that project) Batteries don't compete for long term storage. Losses are too high. Hydrogen is an excellent solution for longer term (weeks to months to years) storage.