The UK government has approved £1.3 billion of extra funding to construct the Sizewell C nuclear power plant after the final go-ahead was given last week.
Extra cash was released from existing infrastructure budgets to upgrade road, rail lines and other services close to the site near the Suffolk coast ahead of the main plant construction phase.
It is on top of a £700 million funding pledge in late 2022 and another £511 million agreed last summer.
French energy firm EDF is set to build the plant, which at an anticipated cost of £20 billion, will be a replica of the new large-scale pressurised reactor at Hinkley Point C in Somerset, in the south-west.
Downing Street and EDF are looking to raise most of the rest of the £20 billion from outside investors, with energy minister Andrew Bowie saying earlier this month that the project was “on track” to raise enough finance by the end of this year.
At least two-thirds of the value of the construction contracts will be awarded to UK businesses, under EDF's plans.
Once operational, Sizewell C is expected to generate 3.2GW of electricity, enough to power six million households for more than 60 years.
The extension to the existing Sizewell power plant granted planning consent 18 months ago but before last week's go-ahead, the site needed to meet various obligations, such as road surveys.