Nuclear is the best btw.
The long term cost of nuclear is by far the highest, unless we actually figure out a no maintenance storage method or other way to get rid of the waste. It's cheap in the moment, but effectively taking on a debt for a very long time. Not that dissimilar to fossil fuels, really. And just like with fossil fuels, the costs are socialized, because whatever company is responsible for the waste probably won't be around in 100, 500, or 1000 years.