Unfortunately, we still have a long way to go in Utah in that regard.
There's a supercharger in Price, Utah that often times has "Powered By Coal" stickers on them. As you can imagine, this enrages most Tesla drivers, but the fact remains that, unfortunately, the stickers are correct; those superchargers are powered by a huge coal powered generating plant nearby.
Even so, BEV's are so efficient that charging a Tesla at that supercharger, and driving it using "coal power," it ends up being better for the environment than driving an ICE. Even if it's a small win, it's still a win. Utah does have quite a few hydro stations, but unfortunately, we still have quite a few coal plants, too. "Carbon County" Utah (that's literally the name of the county) gets its name from the huge coal mines in and around the Price, Utah area.
We'll get there... eventually.
Edit to add: I made it home with my 100 score intact. Whew. Now to not drive the car until tomorrow night at midnight!