It takes a long time to build nuclear plants. There are real reasons to expect that by the time we have Hinckley producing power (and very expensive power) it will be a white elephant. Renewable technology is coming ahead pretty fast, especially connsidering how little is being provide to research and develop technologies - wind power, wave power, tide power, solar power.... And those are by no mean the only renewable technologies available.

And of course it's extremely expensive developing nuclear plants. We are planning to put more into that than we are into developing renewables and energy storeage. Doesn't make much sense.

The reasons we are still going down the route of nuclear power, and expanding extraction of fossil fuel (notably fracking) aren't because they have won the argumants, it's essentially because, for various reasons, more money can be extracted from government for these than for alternatives.