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Sainsbury's Energy

By Sarah Ingrams

Article 22 of 29

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Sainsbury's Energy

Sainsbury’s Energy is a partnership between Sainsbury’s and British Gas. Find out whether Sainsbury's Energy is the right supplier for you.

Sainsbury's Energy customers are supplied by British Gas. Sainsbury's Energy says its aim is to 'support the UK's transition to a greener future by helping to reduce energy use and lower carbon emissions across the UK.'

There are advice centres in some Sainsbury’s stores, so customers can talk with staff about their energy use face to face. You can register and manage your account using an online service or over the phone.  

How do Sainsbury’s Energy's prices compare with your current deal, or can another firm offer you a better price? Use Which? Switch to uncover the cheapest gas and electricity.

Sainsbury's Energy customer score

Sainsbury's Energy came 24th out of 31 energy companies rated by 8,761 members of the public in the annual Which? customer survey – the biggest of its kind.

It scored two percentage points higher than supplier British Gas - both rank in the lower half of our overall ranking of the 31 firms.

'A great price, friendly service.'

Sainsbury's Energy customer

Sainsbury's Energy score breakdown

Below we show the breakdown of Sainsbury's Energy's score from our latest survey. Read our full Sainsbury's Energy review to find out the pros and cons of the energy supplier, including what its prices are like.

Find out how Sainsbury’s Energy compares with other energy companiessee the full results of the best and worst energy companies.

Which? verdict on Sainsbury's Energy

Sainsbury’s Energy achieved a below average score in our survey (the overall GB average was 53%) - last year it achieved an  average score.  It sits in the bottom ten of our 31 energy companies. 

Customers seem to appreciate that its tariffs tend to be cheaper than its partner, British Gas, with a few commenting they were able to save on their bill by switching to the company. 

'We carried out a price comparison and Sainsbury's proved to be good value for money.'

Sainsbury's Energy customer

Customers also rate its bills and phone customer service better than British Gas.

In terms of bills, customers have said they are 'easy to follow' and 'presented clearly.'

'Our bill is presented clearly and in a timely manner.'

Sainsbury's Energy customer

Sainsbury's Energy divided opinion. Many customers are satisfied, but others haven't had great experiences.

They're unhappy for reasons ranging from billing to customer service and dealing with complaints. One customer told us: 'They change amounts without notifying us first.' Another said: 'I had a smart meter with my old supplier but they haven't re-connected it so I can't see actual usage.' 

The complaints continued: 'They handled the switch badly then took incorrect payments, ' and 'If you ask them a question it takes so long to get a reply.' 

"When I had a complaint they didn't deal with it to my satisfaction and as a result I am currently in the process of changing to another supplier."

Sainsbury's Energy customer

This has resulted in a drop in overall customer score. 

In our latest energy companies call-waiting investigation, Sainsbury's Energy took just 1min 49sec for a person to answer the phone when we called its customer services. Plus it responded to customer enquiries via its online form in an average of 22hr 30min in our latest snapshot investigation. This is a big improvement on 2017, when it took longer than 10 days, on average to respond.

Pros: It offers competitive tariffs and face-to-face salespeople in Sainsbury’s stores

Cons: Online services could be improved to assist customers more quickly 

Sainsbury's Energy electricity sources

Sainsbury's Energy prices

Sainsbury's Energy customers were better off on its standard variable tariff than its cheapest fixed deal in late 2016 and early 2017. This is unusual - standard tariffs are often energy suppliers' priciest deals - so check carefully before moving between them. 

Customers could always save money by moving to the cheapest deal on the market though. Use Which? Switch to find the cheapest energy deal for you.

Sainsbury's Energy in the news 


In July 2017 customers could no longer collect Nectar points with Sainsbury's Energy or claim rewards from Nectar partners through Sainsbury's Energy. You can still use any points collected before the 1 July 2017 through Sainsbury's Energy but will only be able to collect new points through other Sainsbury's services. 

Don't put up with high energy bills and slack customer service. Use Which? Switch to uncover the cheapest gas and electricity.