Mobile generators don't produce any more pollution than regular power plants. It is common for businesses to install mobile generators so that they can operate them right away (I believe the law allows them to operate for 1 year) before they get permanent air permits for them. By the way, Xai does have stationary permits for them now, so even that deeply flawed information is out of date.
It is hilarious to see morons like you vacillate between claiming these companies are irresponsible for using the grid without paying for new generation, and complaining when they do add the grid capacity to cover their use. It couldn't be more obvious that it has triggered a knee-jerk anti-development instinct in your lizard brain and that you have not capacity whatsoever to consider these developments rationally.
All this anti-datacenter nonsense is entirely unfounded in reality, so you are just another one of the stupid voters I am talking about.