This is the funny thing, Capitalism basically ensures this is never true. Even in utopia, where everyone was super-pooper efficient and saved 99% electricity usage overnight, just one profit-seeking business (and they’re all profit seeking businesses) would buy up all the cheap electricity, make a bazillion dollars, and use so much power that we’d go right back to 100% electricity consumption.

The narrative of the ‘if every individual did <x>’ is pure myth. Systemic problems can only be solved by systemic solutions.