Perhaps relevant.

2005 ish - UK government release energy strategy and declares fission power plant intent.

2010 ish - UK government formally announces Hinkley Point site. It's declared the first reactor will come online 2019.

2019 - it does not.

2026 - best estimate is now 'around 2030'.

Historical cost estimates are an utter quagmire - but roughly estimated at £18 billion a decade ago, back when it was estimated to be online last year.

Current estimates - bring your own hubris - are roughly £46 billion.

This story has been beaten to death, I know - but recall, this is a country with some history of building and operating nuclear fission power plants, with convenient (2h by rail) access to a lot of expertise from France, and it's a joint-venture with China General Nuclear Power Group so presumably plenty of expertise to draw upon there.