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Texas power prices soared 20,000% Wednesday evening amid another brutal heat wave.
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Spot electricity prices topped $5,000 per megawatt-hour, up more than 200 times from Wednesday morning.
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The state’s grid operator issued its second-highest energy emergency, then later said conditions returned to normal.
I saw something recently which is the same principle as molten salt, except the medium never melts, is stable, and… iirc is pretty much just carbon. I was trying to look for a source and all I could find was the equally-encouraging news that the humble red brick has now been turned into a capacitor (with a wall of bricks being able to perform as a supercapacitor)
https://www.sciencedaily.com/releases/2020/08/200811120154.htm