Best energy suppliers
Find the best energy supplier for your home 👉
- A better service
- A better deal on your energy prices
- A choice of the source of your energy.
Selecting the right energy supplier for your home is crucial for both your comfort and your budget. To save you the legwork, we’ve analysed the latest data to identify the best options available in 2023.
In a comprehensive survey conducted by Which? in October 2022, over 10,000 customers weighed in on their experiences with various energy suppliers. Based on this extensive feedback, here are the top 10 energy suppliers of 2023:
|Energy Supplier||Customer satisfaction score*||Which? Assessment score**||Overall Score**|
Octopus Energy came out on top of the survey with the highest overall score. Octopus excelled in customer satisfaction, support for prepayment, and support for vulnerable customers.
Octopus Energy is the only energy supplier that the survey recommends for the 6th consecutive year.
Utilita came a distant 2nd in the survey, specialising in pay-as-you-go prepayment smart metres. Utilita prides itself in being the only energy provider, specifically focusing on helping households use less energy.
With an overall score of 67%, Utilita received high marks for the ‘usefulness of information about energy costs’ and ‘support for vulnerable customers.’
Utility Warehouse came 3rd in the survey, offering a unique bundled approach that includes broadband, mobile, home insurance, and boiler care.
The company scored highly in ‘clarity of bills’ and ‘value for money’ but fell short in areas such as ‘support for vulnerable customers’ and ‘accuracy of payments’.
Co-op Energy is powered by Octopus Energy and offers mobile, broadband and business solutions in addition to home energy.
The company excelled in ‘support for vulnerable customers’ and ‘value for money’ but scored poorly in ‘clarity of statements’ and ‘clarity of communication about the energy market’, receiving just 2 out of 5 stars in each of these categories.
Although only 62 of E’s customers participated in the Which? survey—a small sample compared to their 300,000-strong customer base—their overall score of 64% still places them among the top 5 best home energy suppliers for 2023.
Ovo Energy markets itself as an eco-friendly provider with their commitment to planting over 1 million trees annually for carbon absorption. Ovo is also one of the largest suppliers, boasting a customer base of over 4.5 million households in the UK.
The ‘green colossus’ placed 6th in the survey, excelling in ‘support for vulnerable customers’ but performing poorly in overall customer satisfaction (ranked 13th out of 16).
The French company is the UK’s largest supplier of electricity by volume, catering to both homes and businesses. They provide energy services like solar panel installations, EV charging, and smart meters.
In the Which? survey, EDF ranked impressively for their ‘support to vulnerable customers’ but received average scores in most other areas like ‘complaint resolution’.
Boost Energy is a pay-as-you-go-only energy supplier that is part of Ovo Energy. Established in 2017 it now has an impressive 350,000 customers.
Boost scored high on their ‘support for vulnerable customers’, but they scored very low on ‘customer satisfaction’ and the worst score for ‘clarity of statements’.
British Gas is the UK’s largest domestic energy supplier, servicing over 9 million homes in the UK.
Naturally, BG had the highest participation in the survey with over 3,000 customers but didn’t fare well in most categories.
They scored 52% in customer satisfaction and 5 out of 10 for complaint resolution.
Sainsbury’s Energy operates in partnership with Eon Next.
It has a dedicated service team and the ability to collect Nectar points when signing up, so it is well integrated with Sainsbury’s supermarket loyalty program.
Its scores in the survey were average across the board, scoring between 2-3 stars out of 5 in all categories.
As we mentioned above, the “best” energy supplier depends on the needs of each customer.
There isn’t a single “cheapest” energy supplier in the UK, as this depends on your circumstances. The following factors decide the cost of your energy bills:
You can use our home energy comparison service to find the cheapest energy supplier for your specific situation.
Unfortunately, it is currently impossible to compare energy deals at this time. However, we expect this situation to change soon.
To understand why this is, read our comprehensive guides on whether you should fix energy prices until 2024?
The cheapest of these large suppliers will depend on factors including location, annual usage, tariff and meter type.
You can use our home energy comparison service to find the cheapest energy supplier in the UK.