No one wants to make the investment to build a plant that costs several billion dollars and will take up to 10 years to build. There have been attempts to build new plants in the US but the cost over runs have been huge. Rate payers are fed up with billion dollar cost increases.

Plus, many of the plants that are currently operating in the states are losing money because their electricity is too costly. We have had a series of nuclear plant bailouts in the past few years. If you can't make money after the construction costs have already be amortized, how can you make money on a new plant?

It's just a very poor financial investment to build a large reactor in the states (unless something changes).