OMG, Here you are telling us that nuclear energy is the cheapest, but you don't have a clue about the economics about commercial nuclear plants.
Actually, I do. Let's look at the numbers:
Solar Star I and II, currently the largest solar arrays in the US
Nameplate capacity (it's full rated capacity): 579 MW
Capacity factor 32.8% This is a measure of its average daily output over 24 hours.
Annual average output 1663 GW
Cost in 2023 dollars to build $3.125 billion
Vogtle Nuclear, the latest nuclear plant to come online.
Name plate: 3450 MW
Capacity factor: 95%
Average annual output: 19,786 GW
Cost to build 2023 dollars $30.34 billion
You need 12 Solar Star plants to match the annual output of Vogtle (19786 / 1663). That would require spending $37.5 billion to build or $7.5 billion more than building a single nuclear plant.
But because solar is intermittent and nuclear isn't, we'll need a means to store energy for when the sun isn't shining. Let's assume just 20 hours of storage to give a cushion in case of poor weather and for differences in the length of daylight over the year. This would require we install about 68,000 MW of battery storage (3400 x 20). Commercial battery storage, installed, runs about $225 a kilowatt right now. That works out to 68,000,000 kw x 225 for another $15.3 billion tacked on for the batteries, or $52.8 billion for our solar array to replace the nuke plant.
We also have to consider that the array will eat up about 50,000 acres of land to built it on (about 80 square miles of land) compared to about 3500 acres for the nuke plant.
Thus, solar is far more expensive, less environmentally friendly (land use, urban heat island effect, ozone production, ground water use, etc.) and would be expected to last only about 50% as long in service as the nuke plant. Then you have to consider solar will still require back up by natural gas or another form of reliable, on demand, electrical generation because it will still be unpredictable.
That makes solar an economic disaster compared to nuclear.