Agreed. But also beyond Bitcoin, ie in the developing world to remove some of the risks around using other fuels (ie solar charged battery lamps in place of paraffin).

I think I recall that WBD were going to investigate using a stranded solar farm for mining in the same town as their football team. (Although my conspiracy theory brain has me suspecting that solar farm was put in / earmarked to help remove infrastructure objections for a planning application currently in the works.)