Hinkley - Back-up Diesel

The Environment Agency has today launched a four-week consultation on a

proposed change to the combustion permit at Hinkley Point C nuclear power
station near Bridgwater. NNB Generation Company (HPC) Limited has applied
to the Environment Agency for a variation to the permit which covers backup
generators. This is not for construction site activities. Nuclear power
stations must have a permit for combustion activities. The permit allows
the company to operate diesel generators in the event of a power cut. Since
the permit was originally granted in 2013, several design changes have been
made. The proposed variation is to allow the installation of additional
back-up generators and changes to those already permitted. These changes
are intended to improve the site’s resilience in the event of a loss of
off-site power.

Environment Agency 18th May 2026

https://www.gov.uk/government/news/have-your-say-on-proposed-change-to-permit-at-hinkley-point-c