E.ON Next EDF Energy (July 2026)
Overview
E.ON Next leads on independent customer service metrics, though EDF Energy currently offers a cheaper fixed tariff.
E.ON Next leads this comparison due to stronger independent service scores from Citizens Advice and Which?. However, EDF Energy may suit households prioritising price, as it currently offers a cheaper fixed tariff and holds a higher Trustpilot rating.
About E.ON Next and EDF Energy
Who are E.ON Next?
E.ON Next is owned by the German energy group E.ON SE and is one of the UK's largest domestic suppliers. It launched in 2020 to replace the legacy E.ON brand and npower. E.ON has announced plans to buy OVO, which would increase its scale in the UK market. The supplier gives customers dedicated staff to handle their queries and offers discounts on home energy tech like solar panels and heat pumps.
Who are EDF Energy?
EDF Energy is owned by the French state-owned company Électricité de France. It is one of the UK's largest domestic suppliers and a major generator of electricity. The company relies heavily on nuclear power, which makes up a large share of its electricity mix alongside renewables and fossil fuels.
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Tariffs and pricing
EDF Energy currently provides the cheaper overall deal. Its Simply Fixed 2Yr Jul28v3 tariff costs £1,693 a year, locking in rates for 24 months with a £150 total exit fee for early departure. In comparison, E.ON Next's lowest-priced option is the Next Fixed 24m v51, priced at £1,733 a year over a 24-month term with a £200 total exit fee.
For households seeking a variable rate, both suppliers provide tracker tariffs. E.ON Next's Next Pledge Tracker 12m v12 costs £1,747 a year, positioning it slightly below EDF Energy's Simply Tracker Sep27 at £1,755 a year.
For shorter commitments, E.ON Next offers the Next Fixed 12m v143 at £1,733 a year over a 12-month term, carrying a £100 exit fee. EDF Energy's most competitively priced fixed option remains its 24-month tariff detailed above.
Tariff options
E.ON Next tariffs
E.ON Next offers a range of standard variable, fixed, and tracker tariffs. It also has specialist options for electric vehicle owners, heat pump users, and homes with solar panels and battery storage.
EDF Energy tariffs
EDF Energy offers mainstream fixed and variable tariffs, alongside a tracker option that discounts the daily standing charge. It also has specialist tariffs for electric vehicle owners, heat pump users, and homes that generate their own electricity.
Customer reviews
EDF Energy holds a stronger Trustpilot rating, scoring 4.8 out of 5 from a high volume of feedback. Across these reviews, 83% award the supplier five stars. Customers frequently note the helpfulness of staff, reporting that issues are typically resolved quickly and interactions feel constructive.
E.ON Next scores 4.5 out of 5 on Trustpilot, with 74% of reviewers leaving five stars and 9% leaving one star. Positive feedback often mentions polite staff and smooth tariff switching, though some users report slow responses and missed callbacks. Both suppliers reply to 99% of their negative reviews, typically within 24 hours.
In the annual Which? customer satisfaction survey, E.ON Next outperforms its rival with a score of 66, compared to EDF Energy's 58. E.ON Next records a smart-meter score of 8, compared with EDF Energy's 5. EDF Energy also scores 3 for contacting the supplier, against E.ON Next's 7.
App quality and features
E.ON Next holds a slight lead on the App Store, scoring 4.8 out of 5 compared to EDF Energy's 4.6. On Google Play, the positions reverse: EDF Energy scores 4.45 while E.ON Next scores 4.34. Both suppliers record over a million installs on Android devices.
The E.ON Next iOS app receives frequent updates, with the most recent release occurring 9 days ago. In a small recent sample of iOS reviews, it averaged 3 stars, as some users reported bugs that logged them out despite using Face ID.
Conversely, the EDF Energy iOS app has not been updated in over two years. A recent sample of its iOS reviews averages 2 stars, with customers noting that a previous update made the interface difficult to navigate and removed the ability to view bill amounts immediately after entering meter readings.
Service and support
E.ON Next performs notably better in the latest Citizens Advice ratings, scoring 3.71 out of 5 to rank 3rd overall. EDF Energy places further down the table in 11th, with a score of 2.9 out of 5.
For phone support, E.ON Next reports faster response times. Its average call centre wait is 2 minutes 3 seconds, compared to 2 minutes 46 seconds for EDF Energy. Both companies maintain formal vulnerability commitments registered with Citizens Advice.
E.ON Next operates its general query phone lines Monday to Thursday from 9am to 5pm, and Friday from 9am to 4pm. EDF Energy offers slightly longer hours on most days, opening Monday to Thursday from 8am to 6pm, and Friday from 8am to 4pm. Neither supplier provides weekend telephone support.
Complaints and performance
The available complaint-rate figures cover different reporting quarters: E.ON Next received 795 complaints per 100,000 customers in the last three months of 2025, while EDF Energy received 1,528 in the first three months of 2025. The figures indicate a higher reported complaint rate for EDF Energy, but are not a like-for-like quarter comparison.
Green energy comparison
E.ON Next
According to Citizens Advice, E.ON Next supplies a mostly renewable mix, with some fossil fuels and a small amount of nuclear. The supplier offers 100% zero-carbon electricity on specific tariffs, backed by UK wind generators and renewable certificates. It also partners with the Woodland Trust, making a one-off donation when customers choose a fixed tariff, which has raised money for ancient woodlands.
EDF Energy
According to Citizens Advice, EDF Energy supplies a mix that is largely nuclear, with some fossil fuels and renewables. The company generates zero-carbon electricity directly rather than relying on carbon offsetting schemes. Its electric vehicle tariffs are backed by 100% zero-carbon nuclear electricity.[1]
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | EDF Energy |
| Overall customer service | E.ON Next |
| A well-rated mobile app | E.ON Next |
| A greener fuel mix | E.ON Next |
E.ON Next leads on independent customer service metrics, though EDF Energy currently offers a cheaper fixed tariff.
E.ON Next may suit households prioritising independent customer service metrics, given its higher rankings with Citizens Advice and Which?. It also records faster average call answering times and provides a higher-rated app for Apple users.
EDF Energy may be the more appropriate option if price is the primary focus, as it currently offers a cheaper fixed tariff. It also secures higher ratings on Trustpilot and Google Play, although its scores from Citizens Advice and Which? are lower than those of E.ON Next.
- Higher Citizens Advice score and rank
- Higher Which? customer satisfaction score
- Faster average call answering times
- Higher rating on the App Store
- More expensive fixed tariff
- Lower Trustpilot rating than EDF Energy
- Lower app rating on Google Play
- Cheaper fixed tariff
- Higher overall rating on Trustpilot
- Higher app rating on Google Play
- Lower score from Citizens Advice
- Lower score in the Which? annual survey
- iOS app has not been updated in over two years
- Slower average call answering times
Frequently asked questions
Which supplier is better overall, E.ON Next or EDF Energy?
E.ON Next performs better across independent service metrics, scoring higher with Citizens Advice and Which?. However, EDF Energy currently offers a cheaper fixed tariff and holds a higher rating on Trustpilot.
Who has the cheaper fixed tariff, E.ON Next or EDF Energy?
EDF Energy currently offers the cheaper fixed deal. Its Simply Fixed 2Yr Jul28v3 tariff costs £1,693 a year, which is £40 cheaper than E.ON Next's lowest-priced fixed option.
Do customers prefer E.ON Next or EDF Energy on Trustpilot?
EDF Energy has a higher Trustpilot rating, scoring 4.8 out of 5 compared to E.ON Next's 4.5 out of 5. EDF Energy also has a higher percentage of five-star reviews.
Which supplier has the better mobile app?
It depends on your device. E.ON Next has a higher rating on the App Store for iOS devices, while EDF Energy scores higher on Google Play for Android devices. The E.ON Next iOS app is also updated much more frequently.
Who answers customer calls faster, E.ON Next or EDF Energy?
According to Citizens Advice data, E.ON Next answers calls faster. Its average wait time is 2 minutes 3 seconds, compared to 2 minutes 46 seconds for EDF Energy.
Should I choose E.ON Next or EDF Energy for better customer service?
E.ON Next is the stronger option for independent customer service scores, ranking 3rd with Citizens Advice. EDF Energy sits lower down the table in 11th place and also scores lower in the Which? annual survey.
Do E.ON Next and EDF Energy offer tracker tariffs?
Yes, both suppliers offer tracker tariffs that follow wholesale prices or price cap changes. E.ON Next's tracker is currently slightly cheaper than EDF Energy's option.
When are E.ON Next and EDF Energy open for customer support?
E.ON Next phone lines are open Monday to Thursday from 9am to 5pm, and Friday from 9am to 4pm. EDF Energy is open Monday to Thursday from 8am to 6pm, and Friday from 8am to 4pm. Both are closed at weekends.
How do E.ON Next and EDF Energy score with Which?
E.ON Next scores 66 in the Which? customer satisfaction survey, beating EDF Energy's score of 58. E.ON Next performs particularly well on smart meters, while EDF Energy struggles on ease of contacting the supplier.
What changed this month
This month, EDF Energy's iOS app days since last update rose from 3 to 754, E.ON Next's cheapest tariff term changed from a variable tariff to a 24-month fixed deal, and EDF Energy's cheapest tariff term changed from a variable tariff to a 24-month fixed deal. There were 42 other data changes this month — see the full changelog below for details.
Data changes this month (52)
E.ON Next
- Trustpilot reviews205,883 → 211,533
- iOS app days since last update8 → 9
- iOS sampled reviews avg stars2.33 → 3
- iOS sampled positive reviews0 → 1
- iOS sampled negative reviews2 → 1
- iOS sampled neutral reviews1 → 0
- Play Store rating4.369063 → 4.3445005
- Play Store ratings count15,579 → 15,798
- Play Store days since last update24 → 9
- Play Store positive ratings %84.2 → 83.5
- Play Store negative ratings %13.2 → 13.7
- Play Store neutral ratings %2.6 → 2.8
- Play Store net-positive %71 → 69.8
- Citizens Advice rank5 → 3
- Complaints per 10,000 customers29.4 → 29.8
- Avg call centre wait time116 → 123
- Emails responded within 2 days %90.6 → 90.7
- Cheapest variable tariff£1,584.14 → £1,747
- Cheapest fixed tariff£1,645.75 → £1,733
- Cheapest tariff£1,584.14 → £1,733
- Cheapest tariff exit fee£0 → £200
- Cheapest tariff termvariable → 24 months
- Tariff count7 → 5
- Fixed tariffs available6 → 3
- Variable tariffs available1 → 2
EDF Energy
- Trustpilot reviews228,447 → 234,962
- iOS app ratings count181,000 → 182,000
- iOS app days since last update3 → 754
- iOS app updates in last 90 days3 → 0
- iOS sampled reviews avg stars2.5 → 2
- iOS sampled negative reviews1 → 2
- Play Store rating4.449787 → 4.4540496
- Play Store ratings count48,436 → 49,305
- Play Store days since last update34 → 20
- Play Store positive ratings %86.9 → 87.2
- Play Store negative ratings %9.4 → 9.1
- Play Store net-positive %77.5 → 78.1
- Citizens Advice rank13 → 11
- Citizens Advice score2.6 → 2.9
- Complaints per 10,000 customers44.6 → 47.6
- Avg call centre wait time257 → 166
- Emails responded within 2 days %77.9 → 85.6
- Cheapest variable tariff£1,584.14 → £1,754.76
- Cheapest fixed tariff£1,671.75 → £1,692.77
- Cheapest tariff£1,584.14 → £1,692.77
- Cheapest tariff exit fee£0 → £150
- Cheapest tariff termvariable → 24 months
- Cheapest fixed tariff exit fee£100 → £150
- Cheapest fixed tariff term12 months → 24 months
- Tariff count6 → 4
- Fixed tariffs available4 → 2
- Variable tariffs available1 → 2
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Written by
Rob Gibbs
Hi, I'm Rob, and I run Energy-Review.co.uk. I initially started this project in 2018 when I was looking to switch energy suppliers and found there wasn't a website that provided simple, data-backed reviews on all the suppliers available. Since then, I have spent a lot of time (too much, some may say!) looking at all publicly available data about each supplier and writing reviews using this information. These reviews are updated as regularly as possible, and any data is backed up by a source where necessary. I have also started writing guides on various energy-related topics, which hopefully you will find useful. If you find any issues, please use our contact form to let us know.