It is cheaper to build out a large (continent wide) network of renewable energy generation with the necessary surplus production and storage than it is to build

It is cheaper to build out a large (continent wide) network of renewable energy generation with the necessary surplus production and storage than it is to build sufficient nuclear power to adequately provide power. Not to mention much faster and less political contentious (most people like nuclear power in the abstract but are vehemently opposed to power plants or long-term storage close to their home). The UK's problem is not too much green energy. It is the insufficient integration of the European power grid and less than ideal investments into green energy on the part of other European governments. Even if you ignore safety concerns and political resistance, nuclear will always loose on the economics.