Giving regular meter readings makes it clear how much energy you’re actually using. Your statements and bills are accurate, so there are no unpleasant surprises.
If you miss a meter reading, we’ll base that month’s statement on estimated readings. This is OK occasionally, but if we keep using estimated meter readings you may end up owing us money. This is because the estimates may be lower than the amount of energy you’re actually using.
It’s surprisingly easy to build up a debt if your readings aren’t up to date – all it takes is an appliance that uses lots of energy. If you don’t see what you’re using, over the course of a year, it can add up.
Why is energy debt a bad idea? Simple. It makes it more difficult to switch suppliers. That, and the fact that it's better to stay in control, or better still, in credit and getting the 3% OVO Interest Reward (rising to 5% in year 3).