We periodically review your payments to check you’re not paying too much or too little. Your first payment is calculated by asking you how much energy you'll use in a year (read more about how your first payment is calculated). However, few things in life go exactly to plan, and your energy usage is no different! If you're using more or less than we first planned, we will change your payments to match.

We use 3 things to review your payments

1. Your estimated energy usage in kWh (units of energy)

Every gas or electricity meter has an estimated annual energy usage associated with it. This figure is given to your supplier by the energy industry, it’s not calculated or controlled by So Energy and it can update when you give meter readings.

This can be inaccurate if: you’ve recently moved home, you don’t give regular readings, or your energy use is never regular.

We now know how much energy you might use in a year, but how much will that cost?

2. Your tariff (unit rates and standing charges)

How much your energy costs depends on your tariff’s unit rate and standing charge. A unit rate is a price per unit of energy (pence per kilowatt hour) and if you’re on a fixed tariff, this won’t change during your contract. A standing charge is a price per day (pence per day) which will also be fixed during a fixed tariff.

We take your estimated annual energy usage and multiply this by your tariff rates for the next 12 months. We can now say how much your energy might cost in a year.

When our ‘So Flex’ variable tariff rates are used for your review, we can only use the current rates, we don’t predict how these will change in the future.

We now know how much your energy will cost in a year, but what should your monthly payments be?

3. Your account balance

If you’ve been underpaying, your account balance will be less than it should be, possibly in debit. We will suggest a payment that covers both your expected usage, as well as the shortfall that’s already happened.

If you’ve been overpaying by a lot, we will offer a refund as well as lower your payment amount. For small over-payments, we will just lower your payment amount.

If it’s been a while since you provided meter readings, your current account balance will be based on estimates, so it might not be accurate. If that's the case, please provide us with meter readings - you should also consider getting a new smart meter installed if you are eligible!

Your review outcome

✉ We will email you to tell you when and how we will change your payments. There will be some time before your payments change, to give you time to prepare and provide any relevant information (like meter readings). It's important that you pay the right amount for your usage so your account does not fall into debt - you can adjust your monthly payments via your online account yourself within a reasonable limit. 

Working examples

If you're paying too much
if you end up using less than initially anticipated, we will reduce your monthly payments so that you don't end up paying us more than you need to!

A chart showing monthly payments being lowered after 6 months of paying higher than the actual usage. The new payment amount is lower than the actual usage of the following 6 months.

If you're not paying enough
If you end up using more energy than expected, we will need to increase your monthly Direct Debits. In this example the account is in credit when the change is made, however, if the payment amount stayed the same, there would be a large debt at the end of the contract.

A chart showing monthly payments being increased after 6 months of paying less than the actual usage.

Remember – you only pay for what you use, any remaining account balance will be settled at the end of your contract.