Our tariffs FAQs

We give you fixed prices with our Fix & Reward tariff, meaning the price of your energy will be the same every month.

But it's worth bearing in mind that if you start using more energy, the amount you pay us will go up, even though the price per unit stays the same. All fixed tariffs have a set length of contract, usually one or two years.

You can view our available fixed tariffs online and renew with us through your account when your current tariff is coming up to the end of its contract.

Yes, you can cancel your fixed price energy plan at any time before the term ends. Terms and conditions apply and you may be subject to exit fees. You can check the terms and conditions of your tariff online.

The price per unit for your energy will stay the same for the duration of a fixed contract, even if energy prices go up due to the government price cap review by the energy regulator. However, it is worth bearing in mind that this also means that you could be fixed at a higher price for longer if prices drop. Learn more about the price cap.

A standard variable tariff (or variable tariff) is the default tariff of all energy suppliers if you do not choose or renew a fixed tariff. If you choose our Sainsbury’s standard variable tariff, the price per unit of energy you use can change when the government price cap is reviewed every 3 months. We will notify you if your energy price is going up or down.

Customers on the standard variable tariff do not have a contract end date and can switch at any time onto a fixed tariff. You can also still pay by Direct Debit whilst on the standard variable tariff.

Your bill is determined by your energy price and how much energy you use. On a standard variable tariff your energy price is subject to change every three months under the government price cap review. Whereas, on a fixed tariff your energy price is set for the duration of the contract. Whether you are on a fixed or variable tariff, your energy bill may vary each month due to changes in the amount of energy you use.

Standard variable energy rates are reviewed every 3 months by the energy regulator under the government’s price cap review. This can result in changes to energy prices, they may go up or down depending on the energy market conditions. You will be notified if your energy rate is going up.

At Sainsbury’s Energy , we provide 100% renewable electricity to all our fixed tariff customers. If you would like to benefit from 100% renewable electricity at your home, you can take a look at our tariffs for our latest fixed deals.

We will match your annual electricity consumption for the Fuel Disclosure Period (calculated between 1st April and 31st March) to the purchase of REGO certificates to offset your electricity usage with 100% renewable sources. Take a look at our fuel mix.

Most of the energy supplied to a customer’s home comes from the National Grid and is made up of electricity and gas (if you have both) produced from a variety of sources. If you are on a fixed tariff with us, we’ll match 100% of the electricity you use on your tariff with the purchase of Renewable Energy Guarantee of Origin (REGOs).

The renewable electricity market is fairly advanced, so a large amount of renewable energy certificates for electricity (REGOs) are available. This means we can match 100% of electricity consumption of our fixed tariff customers. Renewable gas is a much newer concept, so the number of renewable energy certificates for gas (RGGOs) is limited.

REGOs are Renewable Energy Guarantees of Origin Certificates – they essentially provide proof that electricity has been generated from a renewable source. OFGEM issue one REGO per megawatt hour (MwH) of electricity generated from eligible sources to renewable electricity generators.

Unfortunately, the current energy system means that if there is more demand than supply the price of electricity will go up regardless of how it was generated.