E.ON Next Fuse Energy (September 2026)
Overview
Fuse Energy wins on fixed pricing and review scores, though E.ON Next offers a cheaper variable tariff and has proven service metrics.
Based on the available data, Fuse Energy may suit households looking for a cheaper fixed tariff and high customer review scores. Alternatively, E.ON Next offers a lower-priced variable option and holds established service ratings from Citizens Advice and Which?, whereas Fuse Energy currently lacks independent metrics.
About E.ON Next and Fuse Energy
Who is E.ON Next?
E.ON Next is one of the UK's largest energy suppliers and is part of the German E.ON Group. It launched in 2020 to take on customers from legacy E.ON and npower, and runs on the Kraken platform. The supplier focuses on a digital-first service, asking customers to manage their accounts online or through an app, while giving access to dedicated energy specialists for support. It also offers discounts on home energy technology installations.
Products & services
Awards & recognition
Who are Fuse Energy?
Fuse Energy is a newer energy supplier founded in 2022 by former Revolut executives. It is privately owned and backed by venture capital investors. The company operates an in-house model, meaning it owns its renewable energy generation sites, trades power, and supplies it to customers. It runs an app-based service where customers manage their energy entirely through a smartphone app, which gives real-time data with half-hourly updates on energy use and costs. Instead of fixed monthly payments, it uses variable direct debits that adjust each month based on actual energy use.
Products & services
Awards & recognition
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Tariffs and pricing
The lowest-priced tariff across both suppliers comes from Fuse Energy. Its August 2026 Fixed (18m) V15 fixed plan costs £1,489 a year, carrying an 18-month term and a £100 exit fee. In comparison, E.ON Next's cheapest overall option is the Next Fixed 24m Exclusive v11 fixed tariff, priced at £1,510 a year with a 24-month term and a £200 exit fee. Consequently, Fuse Energy provides the cheaper fixed deal by £21 a year, while requiring a shorter contract and a lower exit penalty.
For households seeking a variable deal, E.ON Next provides the lower-priced option. Its Next Pledge Tracker 12m v12 variable tariff costs £1,560 a year, making it £51 cheaper than Fuse Energy's Variable Import tariff at £1,611 a year. The E.ON Next variable plan includes a 12-month term and a £50 exit fee, whereas the Fuse Energy equivalent has no fixed term and no exit fee.
Tariff Options
E.ON Next
E.ON Next offers standard variable and fixed-term options, along with specialist tariffs for electric vehicles, heat pumps, and solar batteries.
Fuse Energy
Fuse Energy offers standard variable and fixed-term plans, as well as tariffs designed to help customers save money by using energy during quieter times.
Customer reviews
Fuse Energy holds a higher Trustpilot rating, scoring 4.8 out of 5 from 10,754 reviews. E.ON Next scores 4.5 out of 5, though this is based on a significantly larger volume of 225,716 reviews. A total of 92% of reviews for Fuse Energy are five-star, compared to 75% for E.ON Next. Additionally, E.ON Next records a higher share of one-star reviews at 9%, against 3% for Fuse Energy.
According to Trustpilot review summaries, Fuse Energy customers frequently note fast response times and helpful staff during the switching process. E.ON Next customers similarly highlight helpful staff and smooth installations, although some report rising costs and occasional communication gaps.
E.ON Next achieves a Which? customer satisfaction score of 66. It scores 8 out of 10 for smart meters and 9 out of 10 for help for those who need it. Fuse Energy does not currently have Which? data available for comparison.
App quality
Fuse Energy scores higher on the Google Play store, achieving a 4.7 rating from 821 reviews, compared to E.ON Next's 4.3 rating from 16,278 reviews. Both applications show substantial install counts, with E.ON Next recording over a million installs and Fuse Energy exceeding 100,000.
For Apple users, Fuse Energy holds a 4.8 rating on the App Store across 717 reviews. E.ON Next does not currently have iOS rating data available in this comparison. A sample of recent iOS reviews for Fuse Energy indicates largely positive feedback regarding customer service and app usability, though one user noted mixed overall company service. Both suppliers have updated their applications very recently.
Service and support
Average wait: 2.1 min
Hours: Mon–Thu 9am–5pm, Fri 9am–4pm, closed Saturday, closed Sunday
Replies: 91% within 2 days
Hours: 24/7
E.ON Next features established independent service data, whereas Fuse Energy is currently absent from these metrics. E.ON Next scores 3.71 out of 5 from Citizens Advice, ranking 3rd overall. The supplier answers calls in an average of 2 minutes 3 seconds and responds to 90.7% of emails within two days. It also maintains formal vulnerability commitments registered with Citizens Advice.
E.ON Next's customer service lines operate Monday to Thursday 9am to 5pm, and Friday 9am to 4pm, remaining closed on weekends. The supplier accepts Direct Debit, Cash/Cheque, and Prepayment. Fuse Energy does not currently have service data or opening hours published by Citizens Advice.
Complaints and performance
For Q2 2026, E.ON Next received 760 complaints for every 100,000 customers. Fuse Energy does not have any complaints data available to show. Because of this, we cannot compare the two suppliers directly.
Looking at how fast E.ON Next fixed issues, it solved 49.61% of complaints by the end of the next working day. It solved 89.69% of complaints within eight weeks.
Main reasons for E.ON Next complaints
- Customer service (32.28%)
- Payments (12.16%)
- General billing and meter reading issues (11.19%)
- Debt and debt-related disconnections (10.40%)
- Smart billing and meter reading issues (7.02%)
Green Energy Comparison
E.ON Next
E.ON Next supplies a mostly renewable mix, with some fossil fuels and nuclear. It offers specific green tariffs, such as Next Gust, which is backed by 100% renewable wind energy generated in the UK. Its Next Pumped tariff also comes with 100% renewable electricity. The supplier includes a one-off donation to the Woodland Trust with all its fixed tariffs, pledging a minimum of £500,000 over three years to help restore ancient woodlands. Since 2009, it has invested about £3.5 billion in UK renewable energy. It is also focusing on scaling clean energy tech, such as batteries and smart homes, to help the UK reach its net zero targets.[1][2]
Fuse Energy
Fuse Energy takes a different approach to green energy. It does not buy certificates to claim its energy is 100% renewable. Instead, it sells its renewable certificates and reinvests all the profits into building new clean energy infrastructure, such as solar and wind farms. Its fuel mix reflects the actual grid usage combined with its own generation. The supplier focuses on helping customers use energy more efficiently through smart technology. By offering off-peak tariffs, it encourages customers to shift their energy use to times when demand on the grid is lower.[3][4]
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | Fuse Energy |
| A well-rated mobile app | Fuse Energy |
Fuse Energy wins on fixed pricing and review scores, though E.ON Next offers a cheaper variable tariff and has proven service metrics.
Based on the available data, Fuse Energy may suit households prioritising a cheaper fixed tariff, a lower exit fee, and higher Trustpilot and app ratings. Conversely, E.ON Next provides a lower-priced variable tariff and demonstrates established performance across Citizens Advice and Which? metrics. Because Fuse Energy currently lacks independent data from these sources, our confidence in the overall verdict is medium.
Households seeking a fixed deal and high customer review scores may find Fuse Energy to be a suitable option. Alternatively, those who prefer a variable tariff and value established service metrics may find E.ON Next better aligned with their requirements.
- Cheaper variable tariff
- Established Citizens Advice and Which? scores
- Answers calls in an average of 2 minutes 3 seconds
- Higher exit fee on cheapest fixed deal
- Lower Trustpilot rating than Fuse Energy
- Lacks current iOS app data
- Cheaper fixed tariff with a lower exit fee
- Higher Trustpilot rating with 92% five-star reviews
- Higher Google Play store rating
- Variable tariff costs more
- Lacks independent Citizens Advice and Which? data
- App ratings based on a smaller volume of reviews
Frequently asked questions
Which supplier is better overall?
Fuse Energy performs better on the available evidence, offering a cheaper fixed tariff and higher customer review scores. However, E.ON Next provides a cheaper variable option and has established service ratings from Citizens Advice and Which?, which Fuse Energy currently lacks.
Which supplier offers the cheapest tariff?
Fuse Energy offers the cheapest overall tariff with its August 2026 Fixed (18m) V15 fixed plan, costing £1,489 a year. E.ON Next offers the cheaper variable option, costing £1,560 a year.
Who has better customer reviews?
Fuse Energy has higher customer reviews, scoring 4.8 out of 5 on Trustpilot with 92% five-star ratings. E.ON Next scores 4.5 out of 5, though this is based on a much larger volume of reviews.
Which supplier has a better mobile app?
Fuse Energy scores higher on the Google Play store with a 4.7 rating, compared to 4.3 for E.ON Next. Fuse Energy also has a 4.8 rating on the App Store, while E.ON Next does not currently have iOS data available.
Who offers better customer service?
E.ON Next has proven service data, scoring 3.71 out of 5 from Citizens Advice and answering calls in about 2 minutes. Fuse Energy does not currently have Citizens Advice service data available to compare.
Should I choose E.ON Next or Fuse Energy?
If you want the cheapest fixed tariff and high customer review ratings, choose Fuse Energy. If you prefer a cheaper variable tariff and value established independent service scores, choose E.ON Next.
Do these suppliers offer fixed tariffs?
Yes, both suppliers offer fixed tariffs. The cheapest fixed deal from Fuse Energy costs £1,489 a year with an 18-month term, while the cheapest fixed option from E.ON Next costs £1,510 a year with a 24-month term.
Are there exit fees for leaving?
Yes, for their cheapest fixed deals. E.ON Next charges a £200 exit fee on its cheapest fixed tariff, while Fuse Energy charges £100.
What are the opening hours for E.ON Next?
According to Citizens Advice, E.ON Next's customer service lines are open Monday to Thursday 9am to 5pm, Friday 9am to 4pm, and closed on weekends.
Is it easy to contact Fuse Energy?
While Fuse Energy lacks independent Citizens Advice data for contact times, its Trustpilot reviews frequently praise the fast response times and helpful staff during the switching process.
What changed this month
This month, Fuse Energy's play store negative ratings % rose from 1.7 to 6.4, Fuse Energy's Trustpilot 3-star % rose from 1 to 3, and Fuse Energy's Trustpilot neutral reviews % rose from 1 to 3. There were 37 other data changes this month — see the full changelog below for details.
Data changes this month (45)
E.ON Next
- Trustpilot reviews219,212 → 225,716
- Trustpilot 5-star %74 → 75
- Trustpilot 4-star %12 → 11
- iOS app rating4.8 → no longer available
- iOS app ratings count49,000 → no longer available
- iOS app days since last update4 → no longer available
- iOS app updates in last 90 days3 → 0
- iOS sampled reviews avg stars3 → no longer available
- iOS sampled neutral reviews1 → 0
- Play Store rating4.324643 → 4.340909
- Play Store ratings count16,070 → 16,278
- Play Store days since last update5 → 4
- Play Store positive ratings %82.6 → 83.1
- Play Store negative ratings %14.2 → 13.8
- Play Store net-positive %68.4 → 69.3
- Cheapest variable tariff£1,747 → £1,560.38
- Cheapest fixed tariff£1,745.58 → £1,509.55
- Cheapest tariff£1,745.58 → £1,509.55
- Tariff count5 → 6
- Fixed tariffs available3 → 4
Fuse Energy
- Trustpilot reviews8,823 → 10,754
- Trustpilot 5-star %91 → 92
- Trustpilot 4-star %3 → 1
- Trustpilot 3-star %1 → 3
- Trustpilot 1-star %4 → 3
- Trustpilot negative reviews replied %83 → 79
- Trustpilot positive reviews %94 → 93
- Trustpilot negative reviews %5 → 4
- Trustpilot neutral reviews %1 → 3
- iOS app ratings count624 → 717
- iOS app days since last update3 → 5
- Play Store rating4.8446603 → 4.6792455
- Play Store ratings count706 → 821
- Play Store positive ratings %97.4 → 92.8
- Play Store negative ratings %1.7 → 6.4
- Play Store net-positive %95.7 → 86.4
- Cheapest variable tariff£1,805.29 → £1,611.29
- Cheapest fixed tariff£1,682.98 → £1,488.98
- Cheapest tariff£1,682.98 → £1,488.98
- Cheapest tariff term15 months → 18 months
- Cheapest fixed tariff term15 months → 18 months
- Tariff count3 → 5
- Fixed tariffs available2 → 4
- Shortest fixed term13 months → 12 months
- Longest fixed term15 months → 24 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.