compare M&S Energy

M&S Energy | Electricity, gas and dual fuel tariffs

Our review of M&S Energy sets out its gas and electricity tariffs, green credentials and pros and cons.

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Supplies 100% renewable electricity
No discount for dual fuel
Marks & Spencer, the well-known British retailer, expanded into gas and electricity supply in 2008. Since then, it’s announced a commitment to providing 100% renewable energy. In October 2018 M&S Energy partnered with Octopus Energy (previously it was supplied by SSE). M&S offers 1 tariff: a fixed rate for 2 years. Here’s what you need to know and how to compare it with the rest.

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M&S Energy’s tariffs and service

Supplier nameM&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)100%

Is M&S Energy green?

According to the data collected from M&S Energy by the energy watchdog, the firm sources the electricity it supplies to customers from 100% renewable sources.

M&S Energy customer reviews

M&S Energy scores highly when it comes to customer satisfaction, according to data collected by the charity Citizens Advice. In 2020 the firm saw an average of 12.9 complaints per 10,000 customers escalated to a third party including the Energy Ombudsman, a dispute resolution organisation recognised by the energy industry. This is among the lowest reported figures for the industry that year.

Meanwhile, reviews on the site Trustpilot are virtually unanimous in positive feedback for the supplier, with 96% of over 3,300 customers giving the supplier an “excellent” rating and a further 3% saying that their experience with the firm was “great”. The firm’s average score on the review site is 4.9 stars out of a possible 5. Strong praise indeed. (Last updated: August 2021).

Pros and cons of M&S Energy


  • Supplies 100% renewable electricity. Octopus Energy, which supplies M&S Energy customers, ensures that all of the electricity it supplies is generated from 100% renewable sources. The company also invests in its own solar energy generation through its sister company Octopus Energy Generation.
  • Fast customer response speeds. M&S Energy is one of the best suppliers in terms of the time it takes to respond to customer queries, according to data from Citizens Advice.
  • Simple tariffs. M&S Energy offers 1 fixed tariff, lasting for 24 months.


  • No smartphone app. M&S customers can’t manage their account using a smartphone app.
  • No discount for dual fuel. M&S Energy doesn’t offer discounts for customers who consider sourcing both their gas and electricity with the supplier.

Our verdict: Is M&S Energy any good?

Customer reviews of M&S Energy seem to be extremely positive. The fact that its energy is supplied by challenger brand Octopus Energy is encouraging for those keen to limit their impact on the environment. As an energy supplier committed to providing its customers with 100% renewable energy, the fact that it generates a large proportion of renewable energy itself is likely to be popular.

M&S Energy also scores well for the speed with which it responds to enquiries from customers, either via email or over the phone. So this supplier is certainly worth investigating.

The only problem is that you need to be happy to be locked into a deal for a fairly long period – usually 2 years. If that isn’t an issue for you, M&S Energy may be what you’re looking for.

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