E.ON Next EDF Energy (August 2026)
Overview
E.ON Next wins for its cheaper fixed tariffs and stronger Citizens Advice scores, though EDF Energy holds higher customer review ratings on Trustpilot.
E.ON Next leads across most independent metrics we reviewed, including pricing, Citizens Advice rankings, and Which? scores. While EDF Energy holds higher customer review ratings on Trustpilot, E.ON Next's cheaper fixed tariffs and faster customer service response times give it the overall advantage.
About E.ON Next and EDF Energy
Who are E.ON Next?
E.ON Next is the UK retail brand of the German utility group E.ON, launched in 2020 to replace the older E.ON and npower brands. Today, it is one of the UK's largest energy suppliers. In May 2026, E.ON announced a planned deal to buy OVO Energy. The deal is subject to regulatory approval, with clearance expected in the second half of 2026, and would [increase the company's scale in the UK market. As well as standard variable and fixed deals, it has specialist options for electric vehicle owners, homes with solar panels, and customers who want to shift their energy use to cheaper times of day. The supplier also sells and installs home energy technology, such as solar panels, batteries, and electric vehicle chargers.
Who are EDF Energy?
EDF Energy is owned by the French state-owned energy company, Électricité de France. It formed its UK operations in 2003 and is now one of the UK's largest energy suppliers. The company operates several nuclear power stations and wind farms across the country. EDF Energy focuses heavily on zero-carbon nuclear electricity. It offers standard variable and fixed tariffs, alongside specialist deals for electric vehicle drivers and homes with air source heat pumps. The company also gives customers the option to bundle their energy tariff with boiler maintenance cover. It installs home energy technology such as heat pumps, electric vehicle chargers, and solar panels.
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Tariffs and pricing
In our comparison, E.ON Next offers the cheapest overall tariff. Its Next Fixed 24m v57 deal costs £1,746 a year. By contrast, EDF Energy's lowest-priced option is a variable tariff, Simply Tracker Sep27, estimated at £1,755 a year.
Looking specifically at fixed rates, E.ON Next's lowest-priced option is a 24-month contract that includes a £200 exit fee. EDF Energy also provides a 24-month fixed deal as its cheapest alternative in this category, though it costs more at £1,824 a year and carries a £150 exit fee.
For households seeking variable rates, E.ON Next provides a tariff estimated at £1,747 a year, which undercuts EDF Energy's £1,755 a year equivalent. It is worth noting that EDF Energy's cheapest variable option has no fixed term but still applies a £50 exit fee.
E.ON Next and EDF Energy: Tariff Options
E.ON Next
E.ON Next offers a range of energy plans, including standard variable and fixed tariffs with terms from 12 to 24 months. It also has tracker deals and specialist options for electric vehicle owners, homes with heat pumps, and households that generate their own solar power.
EDF Energy
EDF Energy provides standard variable and fixed tariffs with terms from 12 to 24 months. It also offers a tracker tariff and specialist plans for electric vehicle drivers, homes with air source heat pumps, and households with solar panels.
Customer reviews
EDF Energy holds the higher Trustpilot rating, scoring 4.8 out of 5 across 243,334 reviews. E.ON Next follows with a score of 4.5 out of 5 from 219,212 reviews. Both suppliers maintain high review volumes and respond to 99% of negative feedback within 24 hours.
A larger proportion of EDF Energy's Trustpilot feedback is rated at five stars (83%), compared to 74% for E.ON Next. Customer commentary for EDF Energy frequently mentions prompt responses, polite staff, and clear communication. E.ON Next users similarly note helpful staff and straightforward problem resolution, although some report issues with perceived overcharging and delayed responses to complaints.
In the annual Which? energy survey, E.ON Next achieves a higher overall score of 66 out of 100, compared to EDF Energy's 58. Both suppliers receive 2 out of 5 for general customer service, but E.ON Next outperforms EDF Energy in the smart meters category, scoring 8 out of 10 against EDF Energy's 5 out of 10.
App quality and features
Both suppliers provide smartphone apps that have recorded over 1,000,000 installs on Google Play. For Apple users, E.ON Next holds the higher iOS rating at 4.8 out of 5 from 49,000 reviews, whereas EDF Energy scores 4.6 from 185,000 reviews.
Conversely, EDF Energy leads slightly on Google Play with a 4.4 out of 5 rating across 50,315 reviews, compared to E.ON Next's 4.3 from 16,070 reviews. Update histories indicate that both applications are actively maintained.
Recent release notes for the EDF Energy app highlight a redesigned home screen intended to provide faster access to account features. Meanwhile, a sample of recent iOS reviews for E.ON Next indicates mixed user experiences; some highlight the clarity of dual-fuel information, while others report unexpected logouts and limited data in energy monitoring graphs.
Customer service and support
Citizens Advice data shows E.ON Next placing 3rd overall with a score of 3.71 out of 5. EDF Energy ranks lower in 11th place, scoring 2.9 out of 5. Both companies maintain formal vulnerability commitments registered with the organisation.
When it comes to issue resolution, E.ON Next records 29.8 complaints per 10,000 customers, which is lower than EDF Energy's 47.6. E.ON Next also reports faster phone support, averaging a call centre wait time of 2 minutes 3 seconds, compared to 2 minutes 46 seconds for EDF Energy.
Digital support metrics follow a similar pattern: E.ON Next responds to 90.7% of emails within two days, ahead of EDF Energy's 85.6%. For phone contact, E.ON Next operates Monday to Thursday from 9am to 5pm, and Friday from 9am to 4pm. EDF Energy offers slightly longer weekday hours, opening Monday to Thursday from 8am to 6pm, and Friday from 8am to 4pm. Neither supplier opens its phone lines on weekends.
Complaints and performance
In Q4 2025, E.ON Next received 795 complaints for every 100,000 customers. It solved 56.4% of these by the end of the next working day, and 92.1% within eight weeks.
Green Energy Comparison
E.ON Next
E.ON Next supplies a mostly renewable mix, with some fossil fuels and a small amount of nuclear power. It offers a specific green tariff, Next Gust 12m v58, which is backed by 100% renewable electricity from UK wind generators. The company partners with the Woodland Trust to make a set donation to help restore ancient woodlands when customers sign up for its fixed tariffs. It also invests in UK renewable energy projects and helps customers generate their own power through solar and battery installations.[1]
EDF Energy
EDF Energy supplies a mix that is largely nuclear, with some fossil fuel and renewables. Because of its nuclear fleet, the company is the largest generator of low-carbon electricity in the UK. Its fixed home energy tariffs are backed yearly by 100% zero-carbon nuclear electricity, which is supplied to the National Grid. Its website details its investments in new nuclear projects, such as Hinkley Point C, and its support for electric vehicles and heat pumps to help lower household carbon emissions.[2]
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | E.ON Next |
| Overall customer service | E.ON Next |
| A well-rated mobile app | E.ON Next |
| A greener fuel mix | E.ON Next |
E.ON Next wins for its cheaper fixed tariffs and stronger Citizens Advice scores, though EDF Energy holds higher customer review ratings on Trustpilot.
Based on the data compared, E.ON Next presents a stronger profile across most categories. It offers lower prices on both its cheapest fixed and overall tariffs, and it secures higher ratings from Citizens Advice and Which?.
E.ON Next may suit households prioritising the lowest fixed rates and faster customer service response times. Conversely, EDF Energy may be a better fit for those who rely on Android devices for account management or who prefer a supplier with higher Trustpilot review scores.
- Lower fixed and overall tariff costs in our comparison
- Higher Citizens Advice rating and fewer complaints per 10,000 customers
- Shorter average call centre wait times
- Higher overall score in the Which? energy survey
- Lower overall Trustpilot rating than EDF Energy
- Lower rating on the Google Play store
- Higher Trustpilot rating, including an 83% five-star share
- Higher rating on the Google Play store
- Higher costs for fixed tariffs in our comparison
- Lower overall ranking from Citizens Advice
- Slower average email response times
Frequently asked questions
Which supplier is better overall, E.ON Next or EDF Energy?
E.ON Next performs better across most independent metrics, leading on price, Citizens Advice rankings, and Which? scores. EDF Energy holds an advantage in overall customer review ratings on Trustpilot.
Who has the cheaper fixed tariff?
E.ON Next offers the cheaper fixed tariff based on the deals we compared, costing £1,746 a year. EDF Energy's cheapest fixed option is pricier at £1,824 a year.
Who has better customer reviews on Trustpilot?
EDF Energy has higher ratings on Trustpilot, scoring 4.8 out of 5 compared to E.ON Next's 4.5. EDF Energy also has a higher share of five-star reviews at 83%.
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 users, scoring 4.8 out of 5. EDF Energy leads on Google Play for Android users with a score of 4.4 out of 5.
Who answers the phone faster, E.ON Next or EDF Energy?
E.ON Next answers calls faster, with an average call centre wait time of 2 minutes 3 seconds according to Citizens Advice. EDF Energy averages 2 minutes 46 seconds.
Should I choose E.ON Next or EDF Energy?
If you want the cheapest fixed tariff and faster customer service, E.ON Next is the better option. If you prefer a supplier with higher Trustpilot scores, EDF Energy may be the right choice.
Do E.ON Next and EDF Energy charge exit fees?
Yes, both suppliers charge exit fees on their cheapest fixed tariffs. E.ON Next charges a £200 exit fee on its cheapest fixed deal, while EDF Energy charges £150.
What are the opening hours for E.ON Next and EDF Energy?
E.ON Next is open Monday to Thursday 9am to 5pm, and Friday 9am to 4pm. EDF Energy operates Monday to Thursday 8am to 6pm, and Friday 8am to 4pm. Both suppliers are closed on weekends.
How do they compare in the Which? energy survey?
E.ON Next scores higher in the Which? survey with 66 out of 100, compared to EDF Energy's 58. E.ON Next also scores better specifically for smart meters.
What changed this month
This month, EDF Energy's iOS app updates in last 90 days rose from 0 to 3, E.ON Next's iOS sampled neutral reviews rose from 0 to 1, and EDF Energy's cheapest tariff term fell from 24 months to 0 months. There were 24 other data changes this month — see the full changelog below for details.
Data changes this month (31)
E.ON Next
- Trustpilot reviews211,533 → 219,212
- iOS app ratings count48,000 → 49,000
- iOS app updates in last 90 days3 → 2
- iOS sampled neutral reviews0 → 1
- Play Store rating4.3445005 → 4.324643
- Play Store ratings count15,798 → 16,070
- Play Store days since last update9 → 4
- Play Store positive ratings %83.5 → 82.6
- Play Store negative ratings %13.7 → 14.2
- Play Store neutral ratings %2.8 → 3.2
- Play Store net-positive %69.8 → 68.4
- Cheapest fixed tariff£1,733 → £1,745.58
- Cheapest tariff£1,733 → £1,745.58
- Cheapest fixed tariff exit fee£100 → £200
- Cheapest fixed tariff term12 months → 24 months
EDF Energy
- Trustpilot reviews234,962 → 243,334
- iOS app ratings count182,000 → 185,000
- iOS app days since last update754 → 4
- iOS app updates in last 90 days0 → 3
- iOS sampled reviews avg stars2 → 2.33
- Play Store rating4.4540496 → 4.4256063
- Play Store ratings count49,305 → 50,315
- Play Store days since last update20 → 5
- Play Store positive ratings %87.2 → 86.3
- Play Store negative ratings %9.1 → 9.8
- Play Store neutral ratings %3.7 → 3.9
- Play Store net-positive %78.1 → 76.5
- Cheapest fixed tariff£1,692.77 → £1,824.37
- Cheapest tariff£1,692.77 → £1,754.76
- Cheapest tariff exit fee£150 → £50
- Cheapest tariff term24 months → 0 months
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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.