The alternatives are:
1)natural gas, which if no new pipelines are allowed to be built will cause the price of gas to skyrocket and make it more expensive than nuclear again. If you build the power plants near the sources and ship the electricity, you will lose ~5% in line losses, and BTW, no one wants transmission lines because technically ignorant folks like you are scared of the pseudoscience claims of EM fields causing cancer.
2) Coal - Cheap, but very dirty, with radioactive emissions way in excess of what is allowed for nuclear plants and currently under heavy attack from the leftist watermelons in DC.
There's at least two basic problems with these things: 1) Fukushima-type accidents which are catastrophic and long-lasting, and 2) the nuclear waste problem.
We have much safer sources of energy available. The biggest energy problem, as I said, is getting the Leftists out of the way so we can tap our reserves of natural, safer energy .