A Folly Too Far?

In 2020 the cost was set at £20bn. but the ultimate cost by 2040, when it might begin operating, could well be north of £40bn. By 2040 it will be too late to make any impression on Net Zero and, if it ever gets finished, Sizewell C will be an expensive and inflexible white elephant cranking out power that is not needed but which will impede the development of the array of renewable systems.

2 September 2025, https://www.banng.info/news/regional-life/folly-too-far/

Andrew Blowers tackles this question in the BANNG column for July 2025

On a fine summer’s day, in early June, Varrie and I travelled to Suffolk to show BANNG’s support for the Outrage Rally against Sizewell C. There were around 300 people assembled on the dunes to protest against the outrageous project and to commemorate the life of one of the great environmental and anti-nuclear campaigners, Pete Wilkinson, who had died in January. There were speeches from his two daughters, Amy and Emily and from Jonathon Porritt, the veteran campaigner who drew attention to the scene before us – the invisible power of the wind and sea on the one hand and the unseen threat of radioactivity posed by the hulk of Sizewell A and the operating Sizewell B on the other.

The protesters marched along the sandy beach to the site of Sizewell C where we tied yellow ribbons to the perimeter security fence in tribute to the outrage and courage that Pete had displayed through his life, successfully campaigning against mining in the Antarctic, dumping of radioactive waste in the Atlantic and stopping up the Sellafield outflow pipe into the Irish Sea. Beyond the fence could be seen the removal of ancient woodland, construction of roads and destruction of countryside and wildlife bordering the precious RSPB Minsmere Reserve in preparation for construction. And the subsequent construction of a huge and dangerous complex of reactors, turbines and long-term, highly radioactive waste stores on a precarious coast was terrifying to imagine.

There was a sense of an unequal struggle, a local community fighting together against an uncompromising government and powerful and well-resourced industry. While the mood was defiant there was an underlying sense of impending defeat.

And, sure enough, three days later came the long-anticipated announcement that Sizewell C was to go ahead, backed by £14.2bn. subsidy for the first four years of construction and up-front payments loaded onto consumer bills. A Final Investment Decision has not been taken, awaiting the commitment of private investors to match the public investment. If private investors do not come forward then either the project must be ditched (too embarrassing for the government) or we (taxpayers and consumers) are in hock for the total cost.

The Sizewell project is the type of big investment that encourages government ministers to don hard hats and suitably logoed high-vis jackets to proclaim a new golden age of clean energy. They haughtily dismiss the ‘blockers’ – we who strive to defend precious communities and landscapes and prevent the financial incontinence that inevitably flows from such complex and uncertain projects.
So, as the Sizewell protesters say, Sizewell C could become Suffolk’s HS2: half-built and unfinished because of finance.