Sainsbury's Energy is the supermarket's own energy brand, run in partnership with E.ON Next. You get your gas and electricity from E.ON Next behind the scenes, and in return for being a Sainsbury's Energy customer you can earn extra Nectar points on your Sainsbury's shopping.
All of its tariffs come with 100% renewable electricity, and it is currently a Which? Recommended Provider.
Sainsbury's Energy is supplied by E.ON Next, not British Gas. It is a Which? Recommended Provider and a good fit if you shop at Sainsbury's and collect Nectar points. It doesn't take prepayment customers, and it's worth comparing prices before you switch.
| Company detail | Sainsbury's Energy |
|---|---|
| Supplied by | E.ON Next, under licence |
| Brand owner | Sainsbury's |
| Tariffs offered | Standard variable and fixed (1 and 2 year) |
| Exit fees | None on variable, £50 to £100 per fuel on fixed |
| Electricity | 100% renewable on all tariffs |
| Rewards | Up to triple Nectar points on Sainsbury's shopping, plus bonus points on eligible tariffs |
| Prepayment | Not available |
| Trustpilot rating | 4.3 out of 5 from more than 3,000 reviews |
| Which? | 71%, and a Which? Recommended Provider for 2026 |
| Phone | 0808 501 5277 |
Jump to a section:Contact detailsTariffsNectar pointsReviewsWho runs it?Fuel mixFAQs
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Below are the contact details for Sainsbury's Energy, should you need to get in touch about billing or a complaint.
| Contact method | Details |
|---|---|
| Phone | 0808 501 5277 9am to 5pm, Monday to Thursday 9am to 4pm, Friday |
| hi@sainsburysenergy.com | |
| Post | Sainsbury's Energy Trinity House 2 Burton Street Nottingham NG1 4BX |
Sainsbury's Energy keeps its range simple, with a standard variable tariff and fixed deals of one or two years. The live list of current tariffs is shown below.
| Tariff Name | Electricity Unit Price | Electricity Standing Charge | Gas Unit Price | Gas Standing Charge |
|---|
For comparison purposes, energy prices shown above are based on average usage figures only. Prices may vary depending on the region you live in and your own gas and electricity usage. To see the best energy deals for where you are, run a gas and electric comparison today.
| Tariff | What it offers | Exit fees |
|---|---|---|
| Standard variable | Prices move with the Ofgem price cap, with no end date. | None |
| 12-month fixed | Unit rates locked for a year, with Nectar rewards. | £50 per fuel |
| 24-month fixed | Unit rates locked for two years, with Nectar rewards. | £100 per fuel |
Tariff details correct as of July 2026. Sainsbury's Energy doesn't offer tariffs for prepayment meters.
The main reason to choose Sainsbury's Energy over E.ON Next directly is Nectar. As a customer, you can earn extra Nectar points on your Sainsbury's shopping, up to triple points while you're on your tariff, and there are bonus points for signing up to eligible tariffs.
To collect them, link your Nectar account when you sign up and keep shopping as normal.
Don't let the points decide for you. Nectar rewards are a nice extra, but they're usually worth far less than the difference between a cheap and an expensive energy tariff. Compare the price first, then factor in the points.
Sainsbury's Energy scores 4.3 out of 5 on Trustpilot from more than 3,000 reviews, with around 80% of reviewers giving five stars.
Sainsbury's Energy is a Which? Recommended Provider for 2026. In the Which? survey from September and October 2025, it scored 71% overall, with a customer score of 76%, putting it joint 5th of 17 suppliers for customer satisfaction. It also received full marks for the help it gives customers who need extra support.
| Which? category | Rating |
|---|---|
| Customer service overall | 4 out of 5 |
| Ease of contacting | 4 out of 5 |
| Clarity of statements | 4 out of 5 |
| Value for money | 3 out of 5 |
| Accuracy of payments | 3 out of 5 |
Sainsbury's Energy isn't currently included in the Citizens Advice customer service rankings.
Sainsbury's Energy launched in 2011 as a partnership between Sainsbury's and British Gas. That partnership ended in 2019, when its customers were moved to British Gas.
Sainsbury's then relaunched the brand with a new partner, npower. When npower became part of E.ON, Sainsbury's Energy moved with it, and it is now run by E.ON Next under licence. E.ON Next handles the energy supply, billing and customer service.
Were you with Sainsbury's Energy before 2019? Your account moved to British Gas when the original partnership ended. See our British Gas review, or our E.ON Next review for more on the current supplier.
All suppliers, including Sainsbury's Energy, must publish the mix of fuels used to generate the electricity they supply, along with its environmental impact. This is known as the Fuel Mix Disclosure and is published every year.
All Sainsbury's Energy tariffs come with 100% renewable electricity, backed by Renewable Energy Guarantee of Origin (REGO) certificates.
| Supplier | Coal | Gas | Nuclear | Renewable | Other | CO2 (g/kWh) | Nuclear Waste (g/kWh) |
|---|
Sainsbury's Energy is a good option if you shop at Sainsbury's and want to earn extra Nectar points, with the reassurance of a large supplier behind it and strong Which? scores.
It isn't suitable if you have a prepayment meter, and its tariff range is short, with no specialist deals for EVs or heat pumps. If you need those, E.ON Next's own tariffs may suit you better.
As always, compare prices using your own postcode and usage before switching.
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Sainsbury's Energy is supplied by E.ON Next, which runs the brand under licence and handles supply, billing and customer service. It used to be run by British Gas, but that partnership ended in 2019.
Yes. Customers can earn up to triple Nectar points on their Sainsbury's shopping while on their tariff, plus bonus points when signing up to eligible tariffs.
Its standard variable tariff has no exit fees. Fixed tariffs have exit fees of £50 per fuel for 12-month deals and £100 per fuel for 24-month deals, although you can switch penalty-free in the final 49 days of any fixed deal.
No. Sainsbury's Energy doesn't currently accept customers with prepayment meters. See our guide to prepayment meters for other options.
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Last updated: 29 September 2026. Which? figures are from its September to November 2025 assessment. Trustpilot rating and tariff details correct as of July 2026. Tariff availability and pricing change frequently, so always confirm current rates through a comparison using your own postcode and consumption.
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