Sainsbury’s Energy reviews, tariffs and information

Sainsbury’s Energy is the energy arm of the UK’s second largest supermarket. Find out what energy plans it offers as well as other useful information with our guide.

Sainsbury's Energy logo

Sainsbury’s Energy is an energy supplier that offers gas and electricity to customers in partnership with another energy supplier firm. Currently, it’s partnered with E.ON Next, which provides Sainsbury’s gas and electric plans. However, Sainsbury’s Energy retains its own website and customer portal, and rewards customers with Sainsbury’s Nectar points.

Sainsbury’s Energy was first launched in 2011 when Sainsbury’s partnered with British Gas to supply its customers with energy. In April 2019, the partnership dissolved, and its customers were transferred directly to British Gas. Within months, however, the brand was resurrected with a new partnership, this time with npower. This lasted until 2021, when npower was acquired by E.ON UK. As a result, Sainsbury’s Energy seamlessly switched partners to E.ON Next.

Around 2,850 customers have given Sainsbury’s Energy an average rating of 4.4 stars on TrustPilot. 79% of those have been 5-star ratings.

Sainsbury’s Energy currently offers just 2 tariffs for customers who pay by Direct Debit. It currently doesn’t offer any plans for prepayment customers. Customers can sign up for electricity-only and dual fuel plans online, but those looking for a gas-only plan must use the supplier’s call centre (see below). Sainsbury’s Standard Variable Tariff is linked to Ofgem’s energy price cap, so rates change every 3 months as it’s updated. Check out our current and future price prediction guide for more details.

Sainsbury's also offers 2 fixed rate tariffs called Fix and Reward Fixed. They allow you to fix your energy rates for 12 or 24 months. Early exit fees apply to both tariffs: those exiting the 12-month plan will be charged £50 per fuel outside of the switching window. The Fix and Reward Fixed 24-month plan charges £100 per fuel if you exit more than 49 days before the tariff’s end date.

Sainsbury’s doesn’t offer any other services under its Sainsbury’s Energy brand. However, customers can enjoy discounts through its partnership with E.ON Next. These include installation of solar panels, electric vehicle home charging stations and boilers.

Sainsbury’s Energy supports both non-smart and smart meters. It also supports single-rate and multi-rate electric meters, meaning that Economy 7 tariffs are supported. It doesn’t support prepayment meters, however, so no PAYG tariffs are available – even for those with smart prepayment meters.

Can I get a smart meter with Sainsbury’s Energy?

Yes, you can get a smart meter fitted for free as a Sainsbury’s Energy customer. You can either contact Sainsbury’s Energy or register your interest through your Sainsbury’s Energy account.

You can contact Sainsbury’s Energy by:

  • Phone: The call centre for Sainsbury’s Energy is 0808 501 5277. Lines are open from 9am-5pm on Monday to Thursday, and 9am to 5pm on Friday.
  • Email: Send an email to to make contact.
  • Social media: Sainsbury’s Energy can also be contacted via Facebook or X (formerly Twitter). The accounts are monitored from 8am to 10pm 7 days a week.

Does Sainsbury’s Energy have an app?

No, since partnering with E.ON Next, the old Sainsbury’s Energy app no longer works. Instead, you should sign into your online account through a web browser. Here you can:

  • View account information and usage
  • Send meter readings
  • View and edit Direct Debit payments

Yes, Sainsbury’s Energy offers 100% renewable electricity to those on its Fix and Reward Fixed tariffs. Its energy is supplied by E.ON Next, and its current fuel mix reveals that overall, 80.3% of Sainsbury’s Energy’s electricity is supplied through renewables. Renewables are sourced through the purchase of Renewable Energy Guarantee of Origin (REGO) certificates.

Sainsbury’s Energy dedicates a section of its website for customers struggling to keep up with payments. It includes links explaining how to set up an affordable payment plan or access free debt advice with StepChange. There’s also a link to the E.ON Next Energy Fund, which is open to eligible Sainsbury’s Energy customers.

Also check out our comprehensive guide to getting help paying your energy bills. You’ll find sections on obtaining government grants as well as help from charities and other organisations.

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