Reasonably accurate, though the cost in practical terms is quite high relatively speaking today. A lot of this is the paperwork part of course. Vogtle 3 and 4 are cases in point, way way late and way over cost est.
What some countries have done, like France, is standardize reactor design, so they don't have to get approval for each one. In the US, each one is new (aside from pairs), so they undergo laborious licensing and inspections. The waste thing is a nonissue, really, in technical terms. France deals with it by reprocessing spent fuel, the US does not.
The possible future is Small Modular Reactors (SMRs) that could power say a town, or factory complex. They are SAID to be cheaper and safer etc. etc. etc.
The Holy Grail in all of this is nuclear fusion power reactors, which is quipped to be "The energy of the future, and always will be." Some recent developments look promising, a bit, but I wouldn't hold out on a real fusion power reactor existing anywhere until 2070, if then. They need a couple real breakthroughs.
