Editing Sellafield (section)

===Calder Hall power station===
[[File:Calder Hall, Queen opening.jpg|thumb|[[Queen Elizabeth II]] officially opening Calder Hall nuclear power station on 17 October 1956]]
With the creation of the [[United Kingdom Atomic Energy Authority]] (UKAEA) in 1954, ownership of Windscale Works passed to the UKAEA. At this time the site was being expanded across the River Calder where four [[Magnox]] reactors were being built to create the world's first commercial-scale nuclear power station. This became operational in 1956 and was the world's first nuclear power station to export electricity on a commercial scale to a public grid. The whole site became known as "Windscale and Calder Works".