Post #2820806
2025-10-20 07:19 UTC
21. Everyone is defining 'long-duration storage technology' wrong. It's not about 6 or 8 hours — you can do that with lithium-ion and probably will — it's about having the capex to add more GWh of capacity decoupled from the capex of adding more GW.
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@solar_chase@mastodon.green 2025-10-20 07:20
22. Examples of real long-duration storage technologies are pumped hydro (reservoir size is decoupled from turbine capacity), or where the storage medium is big tanks of molten salt, or hot rocks. But all of these do still cost a lot of money if they are only cycling once per year.