They should use the small units that have been touted
over the last few years.
As I understand it, they can be online in a few short
years, not the 10+ years it takes to get the large
plants online.
"They" will...but it will be industry that will do it. Dow Chemical plans to install its first small modular nuclear reactor at the Lake Jackson, TX location. I believe that the type of reactor will be a gas-cooled carbon moderated (aka "pebble bed") type.
Those do NOT exist in the US. https://www.scientificamerican.com/article/first-u-s-small-nuclear-reactor-design-is-approved/
The US Navy has more operational reactors than any State in the United States. If it was up to the Navy...
The plans for such have just recently been approved and you can see in the article the fear that exist surrounding safety.
I’m of the opinion the Nuclear Regulatory Commission, one of many organizations belonging to the fourth branch of Government called unelected bureaucrats is responsible for the lack of private nuclear power in the United States.
https://www.nrc.gov/about-nrc.html