Hinkley Point C will cost customers at least £4.4bn

Cost for nuclear power station will be passed on to nearly 30 million customers, while critics warn it could rise to 45bn

The UK's first new nuclear power station for a generation will cost electricity customers at least 4.4bn and the subsidy bill could reach 20bn, the government has revealed.

The charges, which will be passed on to nearly 30 million customers, are a result of ministers' decision to guarantee the new Hinkley Point C operators 92.50 for every unit of electricity - more than double the current market price.