This summer marks a truce. But if, as expected, Liz Truss becomes prime minister, it is almost inevitable that tensions over the Northern Ireland protocol will resurface. Britain has been threatened with trade barriers if it tears up the protocol, with implications for import and export industries. But one possible consequence has been largely overlooked, in spite of the gathering energy crisis: the trade in gas and electricity.
Imported power via undersea interconnectors is the forgotten but fast-growing element of our electricity system. In 2019, 6.1 per cent of our electricity was imported. Undersea power interconnectors, which have been a feature of the UK electricity system since 1986 when the first one plugged Britain into France’s national grid, are designed to work in both directions. They allow, for example, the UK to buy cheap French electricity when there is surplus generation in France and vice versa.
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