Based on the information you provide us during sign up, we estimate how much energy you will use over a 12 month period.
We then work out the cost of that energy usage based on your tariff details and divide it over 12 months to get your monthly payment amount.
However, this monthly payment could change depending on your meter readings. The meter readings you provide us let us know if we have estimated your usage correctly. If your usage has been higher than we had estimated, your monthly payments may increase to help prevent a debt building up on your account.
Likewise, if your actual usage has been lower than we have estimated, your monthly payment may decrease slightly. However, we take into account seasonal charges so we may not always decrease your payments in the summer months as it is good to build up credit to use in the winter months when more energy is consumed.