The Three-Day Week was one of several measures introduced in the United Kingdom in 1973–1974 by Edward Heath's Conservative government to conserve electricity, the generation of which was severely restricted owing to industrial action by coal miners and railway workers. From 1 January 1974, commercial users of electricity were limited to three specified consecutive days' consumption each week and prohibited from working longer hours on those days. Services deemed essential (e.g. hospitals, supermarkets and newspaper printing presses) were exempt. Television companies were required to cease broadcasting at 22:30 to conserve electricity, although this restriction was dropped after a general election was called. The Three-Day Week restrictions were lifted on 7 March 1974. Background Throughout the 1970s the British economy was troubled by high rates of inflation. To tackle this, the government capped public sector pay rises and publicly promoted a clear capped level to the private sector. This caused unrest amongst trade unions as wages did not keep pace with price increases. This extended to most industries, including coal mining, which provided the majority of the country's fuel and had a powerful trade union. By the middle of 1973, the National Union of Mineworkers (NUM) – drawn from a workforce who almost wholly worked for the National Coal Board – were becoming more militant with the election of Mick McGahey as vice-president. The national conference passed resolutions for a 35% wage increase, regardless of any government guidelines, and for the election of a Labour government committed to "true socialist policy" including nationalisation of land and all key monopolies. As inflation increased, miners' wages fell in real terms and, by October 1973, average wages were 2.3% lower than recommended by the Wilberforce Inquiry, which reported on miners' pay in 1972. In November 1973, the national executive committee of the NUM rejected the pay offer from the NCB and held a national ballot on a strike. The vote was rejected by 143,006 to 82,631. However, an overtime ban was implemented with the aim of halving production. This action hurt the coal industry and was unpopular amongst the British media, although the Trades Union Congress supported the NUM's actions. The Three-Day Week In the 1970s, most of the UK's electricity was produced by coal-burning power stations. To reduce electricity consumption, and thus conserve coal stocks, the Conservative Prime Minister, Edward Heath, announced a number of measures under the Fuel and Electricity (Control) Act