Can I switch tariff or supplier if I have a Smart meter?
If you've had a Smart meter installed by another supplier you can still switch to npower as normal but for now we'll treat your meter(s) as a traditional meter and we'll send a meter reader to read your meter. You can also provide a meter reading to us yourself. You can send us your reading online at npower.com/meterread or by calling us on 0800 073 3000 from a landline, or 0330 100 3000 if you're calling from a mobile phone. Lines are open Monday to Friday from 9:00am to 5:00pm.
Phone calls: Calling us on a 0800 number is normally free when you call from a landline but charges may vary if you use a mobile. Calling us on a 0330 number will cost you no more than 01 or 02 numbers from landlines or mobiles. If you get 'inclusive minutes' with your package, calls on a 0330 number will be part of these.