The upcoming Sizewell C nuclear power station could finally be given the green light at a summit next month, more than a year after construction began.

The government considers the expansion of Britain’s nuclear energy capabilities a key part of the long-term decarbonisation of the UK’s energy grid.

Following Hinkley Point C, which is expected to be generating by the end of the decade, Sizewell C should become the next station to be brought online at some point in the mid-2030s. Its design is based heavily on Hinkley Point C in an attempt to speed up the construction process and allow teams from one project to move over to the other once Hinkley has been completed.

But while formal construction works began in January 2024, the final investment decision for Sizewell C still hasn’t been made. It is a joint project between the UK government, which currently owns 83.5% of the project and French energy giant EDF, which owns the remainder.

Sizewell C was originally proposed by a consortium of...