This is very interesting information, I would never think that it would be feasable to main BTC in Texas or i nUS in general . I tought that the electricity costs are way higher than in other places like Russia, India, China...
Regarding Tesla, no way, it is not their bussines , they have too much on their plate. The best case scenario could be that they would do something with tesla roof + btc as a marketing trick . otherwise, no way.