Cuba’s power grid failed on Sunday, causing another nationwide blackout, a state utility said in a social media post. As the lights suddenly turned off across Havana, residents who were sat outside to get some respite from the summer heat audibly groaned en masse. Cuba has been suffering rolling power cuts due to ageing equipment and a US energy embargo that halted regular deliveries of fuel for power stations. State-run UNE said there was a “total disconnection” of the national electricity...
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