In a recent study, researchers from the European Environmental Bureau (EEB), the Stockholm School of Economics (SSE), and the Potsdam Institute for Climate Impact Research (PIK) questioned the planned development of new nuclear capacities in the energy strategies of the United States and certain European countries.
That’s a good point. Having the large scale would afford more room for safety monitoring and control equipment, access for maintenance and operations, and better economies of scale on equipment cost.
Not to mention one plant stays in place on land with unlimited access to support equipment and personal while the other flys though the depths of the ocean, exposed to all its dangers and unpredictability with only the people and equipment that fit onboard.