The Crypto Racket: Public officials at all levels are propping up a Texas Bitcoin mining boom that’s threatening water and energy systems while afflicting locals with noise pollution.

Well, that's a bummer. I don't care about the space (other than disliking it), so when someone says something that's inaccurate, I need someone like you to tell me if they're wrong.

How? Is bitcoin indexing very local power provider in every region to adapt difficulty to power pricing?

Texas is a private grid that has far more pricing fluctuations than larger grids.