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160 points riordan | 1 comments | | HN request time: 0s | source
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flowingfocus ◴[] No.45954757[source]
Instead of drilling deep, there is also an intersting case for storing cheap solar energy as hat in piles of dirts in the summer to power turbines in the winter: https://austinvernon.site/blog/standardthermal.html
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1. ◴[] No.45954836[source]