In 1919, the UK government was planning the reconstruction of the nation's industries after the First World War. The Board of Trade set up the Electric Power Supply Committee, chaired by Sir Archibald Williamson, which proposed the effective nationalisation of the industry. Parliament rejected this solution but enacted the committee's recommendations in a weaker form, including the setting up of an Electricity Commission and a number of Joint Electricity Authorities:
London and Home Counties Joint Electricity Authority
North West Midlands Joint Electricity Authority
West Joint Electricity Authority
West Midlands Joint Electricity Authority
The Commission continued to exist for some years after nationalisation, and finally closed in 1953.