Sorry, but that’s a terrible idea. Submarine power plants are designed to meet a totally different set of design requirements than you want to set for a land based power generation plant. They need to be very small and quiet. Everything else, particularly cost, is secondary. Their fuel has to be highly enriched (>90%) U235, which is massively expensive and a proliferation problem. They are not designed for refueling – typically the whole core is replaced. Their ultimate safety feature in an accident relies on them being surrounded by an unlimited amount of ocean water.
If you take a submarine reactor and redesign it to be more suitable for a power reactor, you end up with a standard PWR.