compare Sainsbury's Energy

Sainsbury’s Energy review

Find out more about Sainsbury's Energy with our review detailing its tariffs, customer ratings and green credentials.

No reviews yet. Write a review

Sainsbury’s Energy is a trading name of the German energy giant E.ON. The large firm supplies energy to homes under the Sainsbury’s Energy name via an agreement reached between the two companies in 2021. Sainsbury’s Energy customers were previously supplied by Npower, which was bought by E.ON in 2020. Our review and price comparison will help you decide if it’s the right supplier for you.

Compare Sainsbury’s Energy with its rivals and find the best deal

Click on the button below to see energy tariffs and prices on offer in your area. See how Sainsbury’s Energy fares against the competition, and find the right energy deal for your home.

Uswitch energy comparison

Find out if switching energy supplier could save you money

  • Compare a wide range of suppliers
  • Quick, easy form to compare quotes
  • Switch with minimal effort

Sainsbury’s Energy’s tariffs and service

Supplier nameSainsbury’s Energy
Green tariffs
Fixed tariffs
Variable tariffs
Dual fuel deals
Manage online
Manage account via app
Manage account by telephone
Live chat support available
Email support available
Can install smart meters
Can offer Warm Home Discount
Percentage renewables (electricity)31%

Is Sainsbury’s Energy green?

According to data collected from Sainsbury’s by the industry regulator Ofgem, the supplier buys or generates its electricity from the following sources.

Sainsbury’s Energy customer reviews

Reviews on the website Trustpilot are mixed, although the number of reviews posted is relatively smaller, making it hard to determine how representative these reviews are. Out of just over 390 customer reviews posted to the site, 53% of posts give Sainsbury’s Energy a rating of “excellent” while 35% give the firm a “bad” customer service rating (last updated: August 2021).

Pros and cons of Sainsbury’s Energy


  • Low carbon electricity. E.ON, which provides Sainsbury’s Energy customers, commits to supplying its household customers with electricity from 100% renewable sources. This can come from E.ON’s own generation facilities or matched through regulator Ofgem’s Renewable Energy Guarantees of Origin (REGO) scheme.
  • No exit fees. Customers on either of Sainsbury Energy’s 1 or 2 year fixed tariffs are not charged any exit fees if they want to leave their deal early.
  • Customers can collect Nectar points. Customers can earn Nectar points when signing up to Sainsbury’s Energy.


  • Mixed customer service. Sainsbury’s Energy customer service appears mixed, based on reviews posted to the site Trustpilot.

Our verdict: Is Sainsbury’s Energy any good?

There are limited online reviews from Sainsbury’s Energy customers, but as the trading name of a larger supplier, it could be worth a look if you’re after a long-standing company. Its parent company E.ON has committed in recent years to providing electricity from 100% renewable sources, but there are other companies currently offering green tariffs that are worth considering, if that’s a key factor in your choice.

Ready to compare energy?

Frequently asked questions

Finder score

★★★★★ — Excellent
★★★★★ — Good
★★★★★ — Average
★★★★★ — Subpar
★★★★★ — Poor

Our experts analysed each provider's complaints handling record, how clear the bills are, and other key measures. More details in our full methodology.

In 2022, the energy market is seeing price rises and far less competition. Get guidance on whether it's the right time to switch by using the personalised quick checker from our partner, Uswitch.

More guides on Finder

Ask an Expert

You are about to post a question on

  • Do not enter personal information (eg. surname, phone number, bank details) as your question will be made public
  • is a financial comparison and information service, not a bank or product provider
  • We cannot provide you with personal advice or recommendations
  • Your answer might already be waiting – check previous questions below to see if yours has already been asked provides guides and information on a range of products and services. Because our content is not financial advice, we suggest talking with a professional before you make any decision.

By submitting your comment or question, you agree to our Privacy and Cookies Policy and Terms of Use.

Questions and responses on are not provided, paid for or otherwise endorsed by any bank or brand. These banks and brands are not responsible for ensuring that comments are answered or accurate.
Go to site