Best answer by Nancy_Boost
Sounds like your meter has gone faulty following the power cut. This is not uncommon for older types of electricity meters.
The meter should stay on, providing you had credit on it before the power cut. We can't arrange an emergency meter exchange unless the meter has actually turned off. The best thing to do in this scenario is get in touch with the team (0330 102 7517) and arrange a faulty meter exchange for a future date (usually around 17 working days). If the meter does go off before this appointment, then get back in touch immediately and we'll be able to get an engineer out within 3 to 4 hours for an emergency meter exchange.
Hope this helps,