Read it again. Already had regulatory approval in 2020.
"In 2020, Oregon-based NuScale’s SMR design was the first in the country to win regulatory approval. But it announced in November 2023 it was pulling the plug on an Idaho-based demonstration project that could have ushered in the next wave of SMRs. Its costs had nearly doubled, which meant the project wouldn’t have been able to generate power at a price people would pay.
Much like large-scale nuclear plants, NuScale’s primary issue was high costs, as already expensive building supplies converged with tight supply chains, inflation and high interest rates.
It was a major blow to the argument that SMRs would be cheaper and faster to build than traditional reactors."