In Texas the ERCOT folks asked the Crypto miners to turn off their power-hungry systems. It saved 1% at the time they turned off - not a lot, but it made a difference for the area around Houston.

I have one unit out, and one working here, and a portable one in my office that is on only when I'm in the office. (I have to finance putting in the new unit that will be more more efficient than the dead 20-year-old heat pump that was state of the art in its day).