Northern Powergrid, a UK electrical distribution company, has thanked customers for not cashing out trillion-pound checks the firm had mistakenly sent as compensation for power cuts. In November last year, heavy storms swept across the UK that left thousands of people without power. As compensation, 74 customers received checks worth trillions of dollars, amounts that the company claims are a clerical error. Instead of the amount payable, those in charge of writing the checks erroneously quoted the customers’ energy meter numbers, resulting in some customers receiving checks for more than 2.3 trillion pounds ($3.1 trillion). The error was brought to attention when one customer, Gareth Hughes, wrote about it on Twitter. “Thank you for our compensation payment @Northpowergrid for the several days we were without power following #stormarwen Before I bank the cheque however, are you 100% certain you can afford this?” Hughes wrote. A company executive soon responded to …