Texas state have some of the lower electricity prices in United States so I am not surprised to see this news, but there are other benefits including lower taxes for moving Bitcoin mining operations there.
I checked out electricity prices in other US states and Florida also have decent price of average 11.65 cents per kilowatt hour, compared to Texas 11.36 cents per per kilowatt hour in May 2021.
The national average electricity price is 12.07 cents per kilowatt hour, but there are some extreme places like Hawaii with around 30.55, Alaska with 21.32 or California with 21.43 average price.
Lowest electricity is in Oklahoma 8.92, Louisiana 9.52, Arkansas 9.42, Missouri 9.38, Nebraska 9.41, North Dakota 9.44... and that would probably be some of the better places to move mining farms.
The electricity prices you have quoted are just crazy. The California rates are like 10x of what they have in Inner Mongolia or Russia. Even the Florida prices are like 5x. So I don't think that Bitcoin mining would be viable anywhere in the United States. On top of that, the mining rigs need to be imported from China. Does anyone know how much will be the import duty and the shipping charge? And then again, maintenance and labor is going to be much more expensive when compared to China. IMO, Kazakhstan or Russia looks like a much better (and viable) option.