Electricity bills: Almost half of NI homes have never changed from Power NI

Almost half of household electricity customers in Northern Ireland have never switched from the largest supplier, Power NI.Only 28% have switched in the last three years and 49% have never switched.That's according to the Utility Regulator, which has published data on so-called "sticky customers" for the first time.It has previously urged customers to shop around for the best deal, but last year there was a drop…