Sizewell B, on the Suffolk coast north of Ipswich, is the UK’s most modern nuclear power station. This brings a lot of attention to the site and the CNC teams based here tend to encounter more incidents than at other sites. It shares the site with Sizewell A, which is in the process of being decommissioned, having stopped producing electricity in 2006. The whole site covers an area of approximately 5 square kilometres.

The area surrounding the site is very picturesque and boasts a huge variety of wildlife and birds, as well as some excellent beaches. The nearest main towns are Lowestoft to the north and Ipswich to the south, although the local area is mostly made up of small towns and villages, offering a range of local produce. Lowestoft is the most easterly point of the UK mainland, while Ipswich is a busy, modern town and has numerous shopping and service amenities. The local area offers a variety of outdoor pursuits, from cycling and various watersports.