No. The naval plants are optimized to generate steam for the propulsion turbines first, and electric generation capacity second. Plugging generation capacity in

No. The naval plants are optimized to generate steam for the propulsion turbines first, and electric generation capacity second. Plugging generation capacity into a grid is far more complex than plugging in a consumer appliance. It'd require a lot of dedicated infrastructure on the carrier, and suitable tie in points from the grid. The US did have a floating nuclear power plant for a while, intended for disaster response and such. It ultimately didn't prove to be useful enough vs the cost and complexity of keeping it running. Russia recently completed fabrication of a modern take on the same idea, but it's not clear how useful that will be to them other than being as part of a suite of nuclear technologies they're marketing militarily.