We need them between five days before and five days after your supply start date – and will send a letter or email to remind you.
If you don’t give us your opening meter readings when we ask for them, we’ll have to use estimated ones. These are sent to your old supplier too, so they can close your account and send you your final bill.
Estimates can be potentially higher or lower than the actual amount of energy you have used in your home. So when it comes to paying your monthly bill, you may pay too much, or too little. So whichever way you look at it, it makes sense to start off on the right track by providing those opening meter readings.