Best and worst energy firms for customer service: EDF bottom, Ecotricity top

The best and worst energy suppliers for customer service have been revealed. If yours is among them, here’s how to switch.

Best & worst energy suppliers revealed

Customer service standards at energy suppliers have still not returned to the levels seen before the energy crisis, with the largest firms among the worst offenders.

Since late 2016, debt charity Citizens Advice has been publishing regular ratings for all suppliers with more than 25,000 customers to see how well they are faring specifically in terms of customer satisfaction.

It gives each a score out of five based on how it performs in terms of customer complaint levels, call waiting times, and commitment to helping customers in need.

As you can see from the graph below, ratings have been broadly falling since 2020 and remain well below the levels seen when Citizen's Advice first started compiling the research.

EDF bottom, Ecotricity top

The latest quarterly ratings, which cover January to March 2024, put EDF last out of all 16 suppliers with a score of just 2.06 out of 5. 

Citizens Advice explained that the supplier fell to the bottom after call waiting times soared from under a minute to over five minutes in less than a year. 

Responding to the findings, an EDF spokesperson said the company "recognised our call answer times haven't been up to the high standards we set ourselves and we're committed to doing better, getting back to the market-leading service our customers expect". 

They added: "We've recruited and trained more people at our Sunderland, Brighton and Exeter offices and are nearing the end of a complex transfer of our residential customers to a new IT system, resulting in more customers getting in touch as we navigate this process."

The UK's largest supplier, British Gas, fared only slightly better in the ratings, sitting 14th out of 16 with a score of 2.39.

Remarkably, Ovo Energy was the only one out of the current Big Six energy suppliers to even feature in the top five, indicating the larger players have their work cut out for them when it comes to customer service.

Indeed it was Ecotricity, the relatively small green energy firm, that comfortably topped the ratings with a score of 3.77.

It was followed by another small player in Outfox The Market.  

See the full ratings in the table below.

Unhappy with your supplier? Get moving

If you've been having no end of trouble with your supplier, you should seriously consider moving to a rival firm.

While the market isn't quite as competitive as before the energy crisis struck, there are still a bunch of suppliers looking to compete for your custom. 

Energy deals: where to start

The first thing you need to do is shop around for a more suitable energy tariff.

As a rule of thumb, opting for 'dual fuel' (both electricity and gas from the same supplier) is generally cheaper than getting your energy from different suppliers.

Companies usually give hefty discounts on dual fuel tariffs and for paying by monthly Direct Debit. But it's worth doing your homework all the same.

The smartest way to find the best tariff is to use a price comparison service, which will hunt down the best deals, and tell you how much you can save compared to your current tariff.

To help you do this, you should have details of your current tariff to hand, including an up-to-date meter reading, as that will provide a more accurate comparison.

Sifting through the jargon

Once you've found the right deal to move to, it's time to switch. You'll be asked for your contact details, and will receive a confirmation email to let you know the switch is in progress.

If you're switching electricity supply, you'll also be asked for your Metering Point Administration Number (also known as the MPAN, your 'Supply number', or, for hardcore utilities fans, the 'S' number).

This can be found on your electricity bill with a large S in front of it, followed by a grid of 13 numbers. You'll only need to quote the numbers to your new provider.

Similarly, if you're switching your gas, you'll need to quote your Meter Point Reference Number, (MPRN or M number), which should also be printed on your gas bill.

If you can't find these numbers, contact your current energy supplier, who will be able to give these to you.

Cooling-off period

Once you've switched, you'll have a cooling-off period of between seven and ten days to change your mind without penalty.

Once this has passed, your supplier will send you a welcome pack outlining your terms and conditions, or a standard letter followed by further information as your switch progresses.

You're likely to receive a lot of correspondence from both your new and old suppliers during the switch, so it's a good idea to keep anything received in a folder you can easily get to, should any queries arise.

In addition, it's important not to be complacent when it comes to switching.

In theory, after you've given over your details and a couple of meter readings, your new supplier should take care of all the formalities.

However, relying on the supplier can delay the switch.

It's wise to give your final meter reading to both your new and old supplier. Not only will this speed things up at both ends, but you'll be able to settle any outstanding amounts owed with greater ease.

In addition, cancel any direct debit arrangements – but only after you've paid your final bill, and make sure you let your bank(s) know too.

Will I be left without gas or electricity?

Thankfully no. As all the energy suppliers use the same pipes, meters and equipment to pump gas or electricity into your home, there is never any interruption in service.

Nobody is going to suddenly turn off a tap to your gas or electricity supply, and the only thing you should notice is a cheaper bill each quarter once you've completed the switch.

In some cases, you may be required to get a smart meter which should generally be paid for by the energy company.

Getting 'green' electricity

Finally, note that it's possible to get electricity generated from renewable sources, without paying much extra.

An increasing number of new and existing providers are offering '100% green' electricity.

Energy providers should be able to tell you the exact percentage of their electricity from renewable sources.