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> but society needs wind to be significantly overprovisioned to avoid burning carbon.

Should be "...overprovisioned in order to completely avoid burning any carbon relying on wind power alone"

> Storage is really hard. We don't know how to meaningfully do it yet.

This is plainly misunderstood. Storage can already be bought, currently costs between 165 and 305 $/MWh [1]. And the price reliably drops as there is more demand and development in it. There is no huge demand for storage yet. Long term storage can actually take the form of carbon neutral fuels and use existing thermelectric plants to generate when required. No "maybe" about that, its existing commercial tech.

[1] https://www.lazard.com/perspective/lcoe2019/

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