The Public Accounts Committee has laid bare the risk architecture of Sizewell C, and it reads like a leveraged buyout where the public is the equity and the private investors hold the preferred stock. The UK government holds a 44.9% stake in the Suffolk nuclear plant — a position it didn't choose so much as inherit after buying out Chinese state developer CGN on national security grounds. The total cost is now estimated between £40.5bn and £47.7bn. Bill payers face an additional £9.8bn before 2040 and another £12bn across the reactor's 60-year operating life. The asymmetry is the story. Private investors — Centrica at 15%, La Caisse at 20%, Amber Infrastructure at 7.6%, and EDF at 12.5% — would be required to contribute just £30m in additional capital if costs overrun. The public, through taxes and energy bills, absorbs everything else. PAC chair Sir Geoffrey Clifton-Brown described the risk borne by taxpayers and consumers as "extraordinary," noting that private investors "look set for significant returns" while households face higher bills. The government's defence is structural: it argues the deal's terms incentivise investors to deliver cheaply and quickly, and that once operational, Sizewell C could save £2bn a year across the energy system. The Nuclear Industry Association's Tom Greatrex adds context, pointing out that consumers already pay £2.8bn this year to manage grid dysfunction — paying wind farms to stop generating and gas plants to fill the gaps. Critics including Prof Steve Thomas of Greenwich Business School and the Stop Sizewell C campaign argue that abandoning the project today would cost less than 60 years of inflated energy bills "multiple times over." They called on the government to retire this funding model entirely, characterising it as "a free ride for investors and financial pain for households." The project is a successor to Hinkley Point C, which has become a byword for nuclear cost escalation in Britain. The PAC has demanded scenario analysis within three months and six-monthly progress updates — an implicit admission that cost discipline on these projects has historically been nonexistent. Construction is expected to complete between 2039 and 2043, with over 2,000 workers currently on site. The core tension is real and unresolved. Britain needs firm, low-carbon baseload power, and the grid costs of not having it are mounting visibly. But the financial structure of Sizewell C concentrates upside with private capital and disperses downside across millions of households for six decades. Whether the £2bn annual system savings materialise depends entirely on delivery — and UK nuclear has no track record of delivering on time or on budget. The PAC's intervention is not anti-nuclear; it is anti-this-deal. The committee wants future projects structured so the public does not bear "extraordinary" risk while private investors enjoy capped exposure. Whether the government listens will determine whether Sizewell C becomes an energy asset or a multi-generational extraction mechanism.
