Who are the UK’s best and worst energy companies?

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Believe it or not, there’s more to energy switching than simply cutting the cost of your gas and electricity bills.

Although getting the best-priced tariff is often the main motivation for switching, a new study from Which? has highlighted the importance of choosing a supplier that not only offers value for money, but also good customer service, along with clear and accurate billing.

So, how does your energy supplier measure up?

The UK’s best and worst energy suppliers survey

The Which? study took in the opinions of around 9,000 UK gas and electricity consumers, and included results for 31 energy companies in England, Scotland and Wales, along with seven from Northern Ireland.

It asked consumers to rate their energy suppliers’ based on the following:

  • Customer service (both online and over the phone)
  • Ability to deal with complaints
  • Value for money
  • Accuracy and clarity of bills
  • Ability to help customers understand and reduce usage.

If you’re a loyal customer of the Big Six energy companies, the results may come as a surprise, and even make you consider your options next time it comes to making the switch.

Who are the UK’s best and worst energy suppliers?

Price is the most important factor when choosing an energy supplier to switch to, so it’s no surprise the top performing energy companies rated highly for value for money. And, as consumers get savvier about savings and energy efficiency, so the top-rated providers also score highly for accuracy and clarity of bills.

The UK’s best energy suppliers

Utility Warehouse has been rated as the UK’s top energy supplier, with five-star ratings for accuracy and clarity of bills, customer service (phone), and value for money, a four-star rating for online customer service, and an overall customer score of 79%.

This was closely followed by Flow Energy in second place with 77%, Octopus Energy and PFP Energy in joint third place with 76%, while Utilita ranked fifth with a customer score of 75%.

Here’s how the top 10 energy suppliers measured up:

  • 1 Utility Warehouse 79%
  • 2 Flow Energy 77%
  • 3= Octopus Energy 76%
  • 3= PFP Energy 76%
  • 5 Utilita 75%
  • 6= Avro Energy 72%
  • 6= Bulb Energy 72%
  • 6= Ovo Energy 72%
  • 9= Ecotricity 71%
  • 9= So Energy 71%
  • 10 Bristol Energy 70%

The UK’s worst energy suppliers

If you’re a customer of Npower, you may not be surprised to learn it’s ranked last, with a Customer Score of just 45% - little wonder Npower’s German parent company is keen to pull the plug on its UK domestic energy operation – closely followed by Spark Energy with 47%, Extra Energy with 49%, and Economy Energy with 50%.

And then the Big Six make up the rest of the bottom third, as Scottish Power and British Gas rank 26th with Customer Scores of just 52%, while SSE performs marginally better with 54%, in joint 24th place with Sainsbury’s Energy.

EDF Energy and Eon performed the best out of the Big Six, their overall scores of 55% putting them in joint 22nd, completing a very poor showing from the UK’s biggest and best-known energy brands.

To check out the full results, visit the Which? energy survey results page.

How to get the best energy deal

The quickest and simplest way to make sure you’re on the best energy deal is to enter your postcode at UKPower and run a price comparison – powered by uSwitch, our service is completely free and impartial, and within seconds we’ll show you the best-priced plans from a whole range of suppliers.

And, because we know there’s more to switching than simply getting the best-priced tariff, when you find a tariff that suits, click on the supplier logo for more information.

Or, if you prefer, give our energy experts a call on 0800 014 2918 and they can find you the best deal with the supplier that’s right for you.

Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.


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