The Glen Canyon Dam which produces electricity for 5.8 mil homes and businesses is at risk of being shut off, because the Lake Powell reservoir whose water is the hydro part of this hydro dam, is at such low levels that is it about to be so low that no longer has the water to generate electricity.
So that is 5,8 million homes and businesses that will be pre-industrial revolution.
Imagine adding electric cars to the power grid, when today's power grid can't even power homes and businesses.