Sainsbury's Energy tariffs and rates (August 2026)
What Sainsbury's Energy offers, who actually supplies it, and how its prices compare on your postcode.
Who supplies Sainsbury's Energy?
E.ON Next. Sainsbury's Energy is a brand, not a licensed supplier — its own legal pages state it is “a trading name used under license by E.ON Next Energy Limited” (registered in England and Wales, no. 03782443). Many guides still say British Gas, which was the historic arrangement and is now out of date.
What that means for you
Your gas and electricity are supplied, billed and serviced under E.ON Next’s licence, so E.ON Next’s customer-service record and complaint-handling are the ones that matter — and they are measured officially, where Sainsbury's Energy as a brand is not. The Sainsbury's Energy name mainly changes the tariff line-up and the Nectar-linked rewards attached to some of them.
If you are weighing Sainsbury's Energy up, read E.ON Next’s official Citizens Advice star rating — that is the regulated service score behind this brand.
⚠️ Sainsbury's Energy has fewer than 25,000 customers in its own right, so Citizens Advice does not publish a star rating for it. We will not invent one. The Trustpilot figure above is Trustpilot’s, refreshed weekly and dated; for an official service score, use E.ON Next’s.
Sainsbury's Energy tariff range — what we hold
Our live comparison feed carries 105 named Sainsbury's Energy tariffs, which expand to 11,200 regional and meter-type combinations. They fall into four families:
| Family | Type | In our feed |
|---|---|---|
| Fix and Reward | Fixed | 80 named tariffs |
| Fix and Save | Fixed | 22 named tariffs |
| Standard Variable | Variable | 1 named tariffs |
| Track and Reward | Fixed / Variable | 2 named tariffs |
Counted from our live tariff feed on 16 August 2026. Unit rates and standing charges vary by distribution region and meter type, which is why one named tariff becomes many combinations — and why a national “price” for any supplier is meaningless until you enter a postcode.
Is Sainsbury's Energy cheap?
There is no honest national answer. The same Sainsbury's Energy tariff is priced differently across the fourteen distribution regions, and whether it beats the £1,663 Ofgem cap depends on how much gas and electricity you actually use. The only way to know is to price it against the whole market on your own address.
Compare Sainsbury's Energy on your postcode →
Frequently asked questions
Who supplies Sainsbury's Energy?
E.ON Next Energy Limited. Sainsbury's Energy is a trading name used under licence — its own legal pages confirm it. Older guides saying British Gas are out of date.
Does Sainsbury's Energy have a Citizens Advice star rating?
No. Citizens Advice rates suppliers with more than 25,000 customers, and Sainsbury's Energy sits below that as a brand. Use E.ON Next’s rating, since E.ON Next holds the supply licence.
How many Sainsbury's Energy tariffs are there?
We currently hold 105 named tariffs across four families — Fix and Reward, Fix and Save, Track and Reward and the Standard Variable — expanding to 11,200 regional and meter-type combinations.
Will switching interrupt my supply?
No. Switching is a back-office change between suppliers — the same gas and electricity arrive through the same pipes and wires, and a 14-day cooling-off period applies.
Also searched as Sainsburys Energy, Sainsbury Energy and Sainsbury’s gas and electricity. Supplier details read from Sainsbury's Energy’s own legal pages on 16 August 2026.
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