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Yeah, sounds click-baity but also really interesting.

Archive: https://archive.today/Kz8le

From the post:

>Scientists at UC Santa Barbara have created a remarkable new material that works like a “rechargeable solar battery,” storing sunlight inside tiny molecules and releasing it later as heat — even long after the sun goes down. Inspired by reversible changes found in DNA and photochromic sunglasses, the system captures solar energy without relying on bulky batteries or the electrical grid. The molecule can hold energy for years and packs more energy per kilogram than lithium-ion batteries.

Yeah, sounds click-baity but also really interesting. Archive: https://archive.today/Kz8le From the post: >>Scientists at UC Santa Barbara have created a remarkable new material that works like a “rechargeable solar battery,” storing sunlight inside tiny molecules and releasing it later as heat — even long after the sun goes down. Inspired by reversible changes found in DNA and photochromic sunglasses, the system captures solar energy without relying on bulky batteries or the electrical grid. The molecule can hold energy for years and packs more energy per kilogram than lithium-ion batteries.
[–] • 1 pt

So, putting a black container of water in the sun to store the heat? Reading the description, sounds like it would be a useful material for insulation to even out the temperature of buildings.

packs more energy per kilogram than lithium-ion batteries

It has to be usable. Matter itself packs enormously more energy than batteries, but you need a fusion reactor to release it.