Complete bo**cks without the generating capacity to support them.
And with 20-25% of the UK's capacity coming from nukes that are at least 40 years old they will struggle to maintain existing capacity.
But no the "free market" dictates only gas power stations can be built on a timescale and a size that lets "British" (IE operating in the UK but actually mostly foreign owned) generators make an economic profit
Except it's HMG that sets the rules that market operates by.
Those rules could be changed, but y'know that's complicated. It needs people who know WTF they are talking about. Something that seems in pretty short supply within the relevant Ministry.