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The dead end of chips: Manufacturing semiconductors consumes as much energy as entire countries
(english.elpais.com)
This is a most excellent place for technology news and articles.
Chances are yes. Simply because to build the machines, such an astronomical amount of money and energy is needed to build them, that even if electricity during dead times cost a bunch more (which for businesses probably does), it probably is still worth it, just to bring it to maximum capacity