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If you are talking about U235 fission pressurized water designs, I agree with you. Although many new reactors are currently being built, the writing is on the wall for them - they are killed by fuel costs, safety concerns, proliferation concerns, storage and disposal of waste - all of this adds a lot to lifecycle costs, far more than the actual reactor.

But do not dismiss next generation nuclear designs.

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Yes I was talking about large fission reactors (pressurized water reactors and boiling water reactors) currently operating and some currently being built.

As for next gen reactors there is niche market for small nuclear plants in the future. But these next gen reactors will never reach even 1% of world power generation. Why:
1. They still have many of the issues of the current large fission reactors.
2. The concepts and designs have been in the design stage for over a decade.
3. Some have gotten preliminary NRC approval while others are still working on this approval.
4. They have not been built and operated - so cost and schedule is still unknown.
5. They will not be available for utility level operations until 2030s at the earliest
6. Many countries have turned their back on nuclear power

Jaak (retired nuclear engineer)
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