Early electricity supplies in London were for public, commercial and domestic lighting. The generation and supply of electricity required authorisation from the Board of Trade. Such authorisation generally limited an electricity undertaking (a company, local authority or person) to a municipal authority area. The first sustainable long-term undertaking in London was the London Electricity Supply Corporation which supplied parts of Westminster from 1885. By 1900 there were 13 company and 8 local authority undertakings in London. Electricity supply and demand increased rapidly as new uses such as electric motors and domestic appliances e.g. kettles, cookers and irons became available. The growth of electricity supply and consumption in London is shown in the table.