Why so exactly? It would have massively reduced emissions to have that nuclear power plant, now instead you have a vague promise they put on 2050, purposely far enough that it does not bind the government to anything.
Now let's see if solar can meet it's promises.
If you ignore externalities, coal is likely the cheapest, unfortunately.
This is exactly what DIDN'T happen with, say, telecom networks. Developing countries skipped directly to mobile telecom, allowing them to save a lot of money by avoiding the upfront cost of building a wired telecom infrastructure.
Really not sure why people parrot these falsehoods that are easily proven wrong.
No matter what tech is used, it'll be obsolete at some point.