"...according to the Climate Change Committee (CCC), UK low-carbon investment each year will have to increase from around £10 billion in 2020 to around £50 billion by 2030, continuing at around that level through to 2050..."
That extra £40 billion is to decarbonise all sectors.
I make it £31.83 billion [part cost] just to decarbonise the electricity sector following the CCC's recommendations.
But because of the 25/30 years lifespans of WASPPs, the plants being built now will have to be decommissioned and new plants built to replace them.
The £31.83 billion per year, will carry on every year - FOREVER!!!
Advanced nuclear power plants would reduce that figure to £8.41 billion per year: