One of the greatest Christmas parties in literature is King Arthur’s fifteen-day feast at Camelot, in Sir Gawain and the Green Knight. Before the knights are allowed to eat, Arthur insists on being told a story, and in Simon Armitage’s terrific translation, he demands “the tallest of tales, yet one ringing with truth”. In the spirit of the season, here are five tall-ish energy stories from 2018 that are nevertheless entirely true.

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