In pictures | First Hinkley Point C reactor journeys to site

The reactor pressure vessel weighs 500 tonnes and is 13m long. It will create heat needed to make steam for the world’s largest turbines.

It is the first of two nuclear reactors that will be installed at Hinkley. Each reactor will help provide low-carbon electricity for 3 million homes.

The reactor first arrived at Avonmouth Docks in Bristol and was transported by barge to Combwich Wharf on the River Parrett in Somerset.

The final four miles of the trip took five hours as the huge piece of equipment was carried by a transporter to its permanent home.