From the first fission critical experiment to the first power-producing reactor (EBR-1) was 9 years. From the first critical experiment in Britain to the first industrial nuclear power plant (Calder Hall) was 7 years. An estimate of 30 years, when the technology can be bought off-the-shelf, suggests something extraordinarily bad about your country.
And if you have the land and the capital to totally island yourself with PV and battery, you're an outlier.