The miners strikes of 1972 caused power cuts around the country. With no coal for the power stations blackouts lasting nine hours plunged Britain into darkness. I remember being on Christmas vacation from college and reading to candlelight.
Miners strike = not enough coal for the electricity power stations = 3 day working week to save the power = reduced income. Those long dark evenings playing cards by candlelight. Taking the dinner to cook in the neighbours gas oven. Then, the bin men went on strike, then the gravediggers. . . .