2 points
Profit is the only real problem with nuclear. The US navy has 7000+ years of operating nuclear reactors without a major incident, and with minimal enviromental impact.
2 points
1 point
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.