Difference between revisions of "Storage"
From energypedia
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==Battery== | ==Battery== | ||
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| − | === Long-term storage === | + | === Long-term storage (better scalability) === |
==== Power-to-gas ==== | ==== Power-to-gas ==== | ||
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https://en.wikipedia.org/wiki/Power-to-gas | https://en.wikipedia.org/wiki/Power-to-gas | ||
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| + | ==== Salt battery ==== | ||
| + | https://www.pv-magazine.com/2022/04/26/long-duration-storage-solution-based-on-saltwater/ | ||
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| + | LCOE: ? | ||
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| + | ==== Compressed air ==== | ||
| + | https://www.pv-magazine.com/2022/04/28/uk-group-develops-liquid-air-energy-storage-tech/ | ||
Revision as of 22:36, 29 April 2022
https://en.wikipedia.org/wiki/Energy_storage
Battery
Pros:
- density
Cons:
- price
- degradation
Outlook: going to become cheaper
Gravity Battery
Pros:
- price per MWh stored
- longevity
Cons:
- density
Types:
- Pumped storage hydroelectricity
- Solid mass:
- above ground
- crane
- Energy Vault - 20 MWh capacity, using cranes
- up/down hill railway
- crane
- underground
- Gravitricity - using deep mines. Best for shafts >300m deep. Cost: 171 USD per MWh (less than 1/2 of the cost of Li-ion battery)[1]
- above ground
Outlook: cost breakthrough is expected
Long-term storage (better scalability)
Power-to-gas
PEM - older technology, expensive
Alcaline - cheaper, more durable, more pure output gases (https://en.wikipedia.org/wiki/Alkaline_water_electrolysis)
https://en.wikipedia.org/wiki/Power-to-gas
Salt battery
https://www.pv-magazine.com/2022/04/26/long-duration-storage-solution-based-on-saltwater/
LCOE: ?
Compressed air
https://www.pv-magazine.com/2022/04/28/uk-group-develops-liquid-air-energy-storage-tech/
