Sainsbury’s Energy Review (July 2026)
Overview
Sainsbury's Energy offers solid customer service and Nectar rewards, but the lack of app and Citizens Advice data makes it harder to judge.
Headline figures: 4.5★ trustpilot · £1,805 cheapest variable per year.
Who are Sainsbury’s Energy?
Sainsbury's Energy is a well-known brand in the UK domestic energy market. Rather than supplying energy directly, it operates under a licence agreement with E.ON Next, which is one of the UK's biggest domestic suppliers. This means E.ON Next physically supplies the gas and electricity and runs the billing systems, while Sainsbury's Energy has its own dedicated customer service team.
What sets the brand apart is its link to the Nectar rewards programme. Customers can get bonus Nectar points when they sign up, as well as extra points on their regular grocery shopping for as long as they stay on an eligible tariff. Through its partnership with E.ON Next, the brand also gives customers access to discounts on home energy upgrades, such as solar panels, home batteries, and heat pumps.
Products & services
- Gas and electricity
- standard variable and fixed-rate tariffs
- Nectar rewards
- bonus points on signup and regular shopping
- Home energy upgrades
- discounts on solar panels, batteries, and heat pumps
Awards & recognition
- ✓Which? Recommended Provider — 2026 / Which?
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Prices
These are the tariffs we have pricing for — the supplier may offer others.
The cheapest option available from Sainsbury's Energy is the Sainsburys Fix and Reward Fixed 24m v47. This 24-month fixed contract costs £1,744 a year and carries a £200 exit fee for early cancellation.
The supplier also provides a 12-month fixed alternative, the Sainsburys Energy Fix and Save 12m v25. This is priced identically at £1,744 annually but features a lower £100 exit fee. For households seeking flexibility without a contract tie-in, the most affordable variable tariff sits at £1,805 a year.
Tariff Details
This supplier's full tariff range
Sainsbury's Energy offers a focused range of domestic tariffs, which all include Nectar point benefits. The range includes standard variable options and fixed-rate deals, allowing customers to choose between flexibility and price certainty.
Customer Reviews
Sainsbury's Energy holds a Trustpilot rating of 4.5 from over 3,100 reviews. Feedback shows that 80% of reviewers award five stars, while 10% leave a one-star rating.
Reviewers frequently highlight the helpfulness and knowledge of the customer support staff. Communication is often cited as a strength, with queries generally handled efficiently. Conversely, some users report payment issues, including incorrect estimated bills or difficulties having Nectar points credited to their accounts.
In the annual Which? survey, the provider achieves an overall score of 71. It receives 4 out of 5 for customer service and 3 out of 5 for value for money. Notably, it earns 10 out of 10 for helping those who need it, alongside 4 out of 5 for both ease of contact and statement clarity.
Apps
| Metric | Sainsbury’s Energy |
|---|---|
| iOS app rating | N/A |
Sainsbury's Energy does not currently provide a dedicated mobile app. As a result, households must manage their accounts, submit meter readings, and review bills directly through the supplier's website.
Service & Support
| Metric | Sainsbury’s Energy |
|---|---|
| Citizens Advice score | N/A |
| Complaints per 100,000 customers | 989 |
| Complaints resolved same day | 63% |
| Complaints resolved within 8 weeks | 91% |
Citizens Advice does not currently hold rating or wait time data for Sainsbury's Energy. Consequently, it is not possible to benchmark its phone support or email response times against the wider market.
However, industry figures indicate that the supplier resolves 63% of complaints on the same day they are raised, and 91% within an eight-week timeframe.
Sainsbury’s Energy complaints and performance
In the most recent period available (Q3 2025), Sainsbury’s Energy received 989 complaints for every 100,000 customers. The supplier resolved 63% of these complaints by the end of the next working day, and 91% within eight weeks.
Green Energy Approach
Sainsbury's Energy matches 100% of the electricity it supplies to customers with Renewable Energy Guarantees of Origin (REGO) certificates. This means it buys certificates to match the power its customers use, rather than generating the renewable energy itself.[1]
The supplier does not have a separate green tariff, as this matched renewable electricity is included across its standard range. It also helps customers lower their carbon footprint by offering discounts on home energy efficiency upgrades. Through its partner E.ON Next, customers can get money off the cost of installing solar panels, home batteries, heat pumps, and electric vehicle chargers.[2]
Our Verdict
Sainsbury's Energy offers solid customer service and Nectar rewards, but the lack of app and Citizens Advice data makes it harder to judge.
Sainsbury's Energy pairs standard energy tariffs with Nectar point incentives, supported by positive Trustpilot feedback and a score of 71 from Which?. However, the absence of a dedicated mobile app and missing Citizens Advice data makes it difficult to form a complete picture of its operational performance.
This provider may suit households that regularly shop at Sainsbury's and wish to accrue Nectar points on their utilities. Conversely, those who prefer managing their accounts via a smartphone app or require a supplier with a proven Citizens Advice track record may want to explore alternative options.
Frequently asked questions
Who actually supplies energy for Sainsbury's Energy?
Sainsbury's Energy operates under a licence agreement with E.ON Next. This means E.ON Next physically supplies the gas and electricity and manages the billing systems, while Sainsbury's Energy handles customer service.
Does Sainsbury's Energy offer fixed tariffs?
Yes, its cheapest fixed deal costs £1,744 a year and ties you in for 12 months. It also has a 24-month fixed option.
Are there exit fees on Sainsbury's Energy tariffs?
Yes, its fixed tariffs come with exit fees if you leave your contract early. Its 24-month deal has a £200 exit fee, while the 12-month deal has a £100 exit fee.
Is Sainsbury's Energy highly rated by customers?
It has a Trustpilot rating of 4.5 from over 3,100 reviews. It also gets a score of 71 in the annual Which? survey, with top marks for helping those who need it.
Does Sainsbury's Energy have a mobile app?
No, Sainsbury's Energy does not currently have a dedicated mobile app. Customers need to manage their accounts and submit meter readings through the supplier's website.
How fast does Sainsbury's Energy resolve complaints?
Industry data shows the supplier resolves 63% of customer complaints on the same day they are raised, and 91% within eight weeks.
Should I switch to Sainsbury's Energy?
It is a good option if you want to earn Nectar points on your energy bills and value strong customer reviews. However, you might want to look elsewhere if you want to manage your account through a smartphone app.
Does Sainsbury's Energy provide renewable electricity?
Yes, it matches 100% of the electricity it supplies to customers with Renewable Energy Guarantees of Origin (REGO) certificates.
Can I earn Nectar points with Sainsbury's Energy?
Yes, customers can get bonus Nectar points when they sign up, and they can earn extra points on their regular grocery shopping while they stay on an eligible tariff.
How does Sainsbury's Energy score with Which?
It has a Which? score of 71. It scores 4 out of 5 for overall customer service and gets a standout 10 out of 10 for helping those who need it.
What changed this month
This month, Sainsbury’s Energy's cheapest tariff term changed from a variable tariff to a 24-month fixed deal, Sainsbury’s Energy's cheapest tariff exit fee rose from £0 to £200, and Sainsbury’s Energy's variable tariffs available rose from 1 to 2. There were 6 other data changes this month — see the full changelog below for details.
Data changes this month (10)
Sainsbury’s Energy
- Trustpilot rating4.3 → 4.5
- Trustpilot reviews3,107 → 3,115
- Trustpilot negative reviews replied %52 → 36
- Cheapest variable tariff£1,584.14 → £1,804.81
- Cheapest fixed tariff£1,690.97 → £1,743.58
- Cheapest tariff£1,584.14 → £1,743.58
- Cheapest tariff exit fee£0 → £200
- Cheapest tariff termvariable → 24 months
- Variable tariffs available1 → 2
- Longest fixed term12 months → 24 months
Written by
Rob Gibbs
Hi, I'm Rob, and I run Energy-Review.co.uk. I initially started this project in 2018 when I was looking to switch energy suppliers and found there wasn't a website that provided simple, data-backed reviews on all the suppliers available. Since then, I have spent a lot of time (too much, some may say!) looking at all publicly available data about each supplier and writing reviews using this information. These reviews are updated as regularly as possible, and any data is backed up by a source where necessary. I have also started writing guides on various energy-related topics, which hopefully you will find useful. If you find any issues, please use our contact form to let us know.
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