Coastal mayors and governors have access dashboard to order nuclear submarines and pay by the hour. Submarine plant comes within a week, plugs itself to the local grid from the shore and electricity flows in. You may want to reserve an instance for a year or the submarine may move to a higher bidder municipality. Emergency cooling handled by construction even in worst case scenarios, no pumping necessary.
Regulations are fine because the submarine plants are not built in your country. Nuclear waste moves out of the country with the submarine when submarine is done powering your local grid. A real-time marketplace lets cities and countries worldwide bid to host the waste for good money.