> The reason solar is winning is because the manufacturing technology can be iterated every six months, so the learning curve is much faster. Nuclear power plant technology is iterated roughly every 25 years, or twice in the lifetime of a plant. Many first generation plants are still operational, while few third generation plants have been commissioned, and fourth generation plants are still in the planning stage. Even if every design iteration was a factor of 10 better than the previous one, solar, iterating 50 times faster, could outdo this improvement over the same timescale with a mere 5% improvement per iteration. Since this is roughly the solar learning rate, we can now ask if each nuclear design iteration is 10x better than its immediate predecessor. Obviously not.
There's definitely an argument that some part of that slow iteration speed for nuclear is political and unnecessary. Clearly if we built more plants they would iterate faster. But realistically at this point...is it going to happen?
Personally, I think looking at the data so far, we should just stop investing in fission plants, continue research of fusion plants, but put a practical focus on building renewables to meet climate targets to get the most reduction for the buck.
All other AP1000 projects in the US have been cancelled. No one in the US is going to order an AP1000 unless the government takes on construction risk.