this post was submitted on 17 Feb 2026
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A fluid can store solar energy and then release it as heat months later (arstechnica.com)
submitted 1 day ago by Rekall_Incorporated@piefed.social to c/technology@piefed.social
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Sunlight can cause a molecule to change structure, and then release heat later.

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[–] Hirom@beehaw.org 2 points 4 hours ago* (last edited 4 hours ago)

Yes, water/sand based solutions can and should be deployed today for short/medium term heat storage, ie days, maybe weeks if volume and/or insulation is sufficient.

MOST fluids are promising as they store energy in their structure then release heat. So those shouldn't loose heat nor require insulation when stored. If they make it practical, it should allow smaller-scale longer-term storage (months). Until then let's keep deploying existing proven tech.