Bitcoin mostly reuses wasted energy where there is no other better paying customer. Even if we would stop all Bitcoin mining on the planet, it wouldn't make any difference for this wasted energy, it wouldn't be put to other uses.
Please take the time to watch this podcast about bitcoin and electric grids and power usage:
"The 1.8 gigapixel sensor is made up of a matrix of 368 Aptina MT9P031 5-megapixel smartphone CCDs."
https://newatlas.com/argus-is-darpa-gigapixel-camers/26078/