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But according to HN armchair engineers, electricity will be free, nay, negatively priced in T+epsilon as exponential decrease in solar panel prices actually turns them negative. Or maybe even imaginary.

THEN it definitely makes sense.

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https://energy.economictimes.indiatimes.com/news/oil-and-gas...

Wholesome energy prices do in fact turn negative. But then you store it in batteries and use it when they flip positive again. No complicated, expensive, delicate, dangerous, cryogenic fuel systems required.

Storing it in batteries works for short periods of up to maybe a few days.

You don't think there will be seasonal mismatch between renewable generation and electricity demand?

Because if there _is_ a seasonal mismatch, hydrogen will be needed anyway.

Even 7 day storage will likely need hydrogen

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