Simon Calder, also known as The Man Who Pays His Way, has been writing about travel for The Independent since 1994. In his weekly opinion column, he explores a key travel issue – and what it means for you.
Beware of the triads. No, not organised crime syndicates; I mean the three wintry half-hours “with the highest electricity transmission system demand”. National Grid, which uses triads for pricing, says they typically occur on weekdays from November to February between 4.30pm and 6pm.
What on earth has this got to do with travel? Potentially, quite a lot. I learnt about triads while researching on behalf of a reader, Judith Oliver, who is contemplating a winter visit to the UK from her home in Singapore. She asks: “Should rolling blackouts happen, what will be affected? Hotels? Restaurants? Theatres? Museums? Public transport?”
Those triads indicate the times when the electricity supply is most under strain – which, with the Kremlin doing its darnedest to destabilise the West, could lead to blackouts this winter.
National Grid stresses power cuts are “unlikely” but warns that if a series of events conspire against us, “some customers could be without power for pre-defined periods during a day”. They would be three-hour blocks. So, with a cushion around those triads, let us assume 4-7pm – and work through Ms Oliver’s list.
Big hotels have back-up for emergency lighting, but the delivery of afternoon tea and aperitifs could be affected – with an absence of internet, in-room entertainment and lifts potentially even more annoying for guests.
Restaurant kitchens would need to rush to prepare to feed hungry customers as soon as feasible after the 7pm reinstatement of power. In 2018, after a sudden power failure in London’s West End (a bolt out of the blue, if you like), the hospitality industry showed it could recover quickly even with no notice. Theatres were not so fortunate, with performances cancelled, but if actors knew they would be back in the limelight by 7pm, the shows could go on.
Museums would, I imagine, kick everyone out at 3.30pm and get staff out before the lights go out, which begs the question: might public transport be hit? Buses would be unaffected, as would the many lines on which only diesel trains run.
Rail passengers around London (as well as the Underground) could, in theory, find the…
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