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gaoryrt | 6 months ago

Why go throught the extra solar -> electricity -> resistive heating -> soil instead of directly doing solar -> heating a metal rod -> soil?

Cutting out the conversion steps should be more efficient.

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3eb7988a1663|6 months ago

If the electricity is free, efficiency does not matter that much. The capex of the storage system might matter a lot more. In which case, heating up a big mass might be more economically feasible than battery installations.