Fuse Energy OVO Energy (July 2026)
Overview
Fuse Energy offers a much cheaper fixed tariff and better app ratings, though OVO Energy provides the reassurance of independent service scores.
Fuse Energy leads this comparison due to its lower-priced fixed tariff and higher app ratings. OVO Energy may suit households that prefer a supplier with established independent service metrics, as it holds a Citizens Advice score that Fuse Energy currently lacks.
About Fuse Energy and OVO Energy
Who are Fuse Energy?
Fuse Energy was set up in 2022 by former Revolut executives. It is a privately owned company backed by venture capital investors and has grown quickly to become one of the UK's fastest-growing energy startups. It runs a vertically integrated model, meaning it owns its own renewable energy generation, trades power, and supplies it directly to customers.
Who are OVO Energy?
OVO Energy was founded in 2009 and is privately owned by Imagination Industries, with backing from Mitsubishi Corporation and Mayfair Equity Partners. It is one of the UK's largest domestic energy suppliers, having grown significantly after buying SSE's retail business in 2020. E.ON has announced a planned deal to buy the company, which would increase its scale subject to regulatory approvals.
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Tariffs and pricing
The lowest-priced deal across both suppliers comes from Fuse Energy. Its July 2026 Fixed (15m) V6 tariff costs £1,563 a year, fixing rates for 15 months. In contrast, OVO Energy's cheapest option is the 1 Year Fixed + Boiler Cover 09 July 2026 tariff, priced at £1,797 a year on a 12-month contract. Both fixed deals carry a £100 total exit fee if you switch away before the term concludes.
For households seeking a variable tariff with no fixed term, pricing is identical under our assumptions. Fuse Energy's Variable Import tariff and OVO Energy's Simpler Energy tariff both cost £1,805 a year. Neither of these variable options charges an exit fee.
Tariff Options
Fuse Energy tariffs
Fuse Energy offers a standard variable tariff alongside fixed-term options for those wanting price certainty. It also offers specialist tariffs for electric vehicle drivers and homes with solar panels and battery storage.
OVO Energy tariffs
OVO Energy offers a standard variable tariff and a range of fixed-term deals, including options bundled with boiler cover or greener electricity. It also has specialist add-ons and export tariffs for electric vehicle drivers and homes with solar panels.
Customer reviews
Fuse Energy holds a slightly higher overall Trustpilot score, achieving 4.8 out of 5 compared to OVO Energy's 4.7. The difference is more pronounced in top-tier ratings, with 90% of Fuse Energy reviews awarding five stars, against 77% for OVO Energy. Both suppliers maintain a relatively low proportion of negative feedback, although OVO Energy receives slightly more one-star reviews at 9%, compared to 5% for Fuse Energy.
In Trustpilot reviews, customers frequently note that Fuse Energy staff are professional and efficient, highlighting quick query responses and functional app and website interfaces. OVO Energy customers similarly report helpful staff and effective problem resolution. Conversely, some OVO Energy reviewers cite issues with communication, transparency, and smart billing or meter reading processes.
In the annual Which? customer survey, OVO Energy scores 61 overall. It receives 2 out of 5 for overall customer service, value for money, and clarity of statements. It achieves higher marks elsewhere, scoring 5 out of 10 for smart meters, 6 out of 15 for complaints, and 8 out of 12 for contacting your supplier. Fuse Energy is not currently rated by Which?.
Smartphone apps
Both suppliers provide well-rated apps for Apple users; Fuse Energy scores 4.7 on the App Store and OVO Energy scores 4.6. The gap widens on Android devices, where Fuse Energy achieves 4.8 on the Google Play Store, compared to OVO Energy's 3.3. OVO Energy's app records over 1,000,000 installs, while Fuse Energy shows more than 100,000.
Both companies actively update their applications. A sample of recent iOS reviews indicates that Fuse Energy customers value the in-app support functions, though a few mention broader service issues. Meanwhile, recent iOS reviews for OVO Energy show users appreciate the historical energy consumption data, but some report that installing the app restricts their ability to view full tariff information on the main website.
Service and support
OVO Energy holds a Citizens Advice score of 3.3 out of 5, ranking 8th officially. It answers phone calls in an average of 1 minute 33 seconds and responds to 98.5% of emails within two days. The supplier's average social media response time is 6 minutes 53 seconds, and it has formal vulnerability commitments registered with Citizens Advice.
Fuse Energy lacks a Citizens Advice score and has no published data for call wait times or email responses. OVO Energy accepts Direct Debit, Cash/Cheque, and Prepayment, operating its customer service team on weekdays between 9am and 5pm, and closing on weekends.
Complaints and Performance
There is no complaints data available for Fuse Energy.
Green Energy Comparison
Fuse Energy
Fuse Energy owns and runs its own solar and wind farms to generate clean power. It reinvests its profits into building more clean energy projects. The company does not claim to offer a 100% zero-carbon fuel mix through REGO certificates, stating that this practice can be misleading. Instead, it sells its certificates to fund new green infrastructure. Because of this, its official fuel mix is mostly grid energy, alongside direct contributions from its own renewable sites. It also encourages customers to shift their energy use to off-peak times to help reduce strain on the national grid.[1]
OVO Energy
OVO Energy stopped using REGO certificates as standard in 2023, arguing they do not help build new green generation. Instead, it buys electricity directly from renewable generators through Power Purchase Agreements. Its overall electricity fuel mix is largely fossil fuels, with some renewable and nuclear energy. The company has a "Path to Zero" target to reduce its carbon footprint and has planted 5 million trees in the UK since 2015. It also offers a Greener Electricity upgrade for an extra monthly fee, which gives 100% zero-carbon electricity from traceable sources and pays into a fund to support new independent UK generators.[2]
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | Fuse Energy |
| Overall customer service | OVO Energy |
| A well-rated mobile app | Fuse Energy |
Fuse Energy offers a much cheaper fixed tariff and better app ratings, though OVO Energy provides the reassurance of independent service scores.
Based on the available data, Fuse Energy may be the more suitable option for households prioritising price and digital management. It offers a lower-priced fixed tariff and achieves higher smartphone app ratings, particularly on Android. However, because Fuse Energy lacks independent metrics from Citizens Advice and Which?, our confidence in this verdict is set to medium.
Choose Fuse Energy for the lower fixed price and stronger app scores; choose OVO Energy if independently published service measures are more important to you.
- Lower-priced fixed tariff option
- High ratings across both iOS and Android apps
- High proportion of five-star Trustpilot reviews
- No Citizens Advice score or published wait time data
- Not currently rated by Which?
- Established Citizens Advice score and ranking
- High email response rate within two days
- Registered vulnerability commitments
- Fixed tariffs are priced higher
- Lower rating on the Google Play Store
Frequently asked questions
Which supplier is better overall?
Fuse Energy wins this comparison due to its much cheaper fixed tariff and stronger app ratings. However, OVO Energy remains a good choice if you prefer a supplier with established Citizens Advice and Which? scores.
Who has the cheaper fixed tariff?
Fuse Energy offers the cheaper fixed deal. Its 15-month fixed tariff costs £1,563 a year, which is over £200 cheaper than OVO Energy's cheapest fixed option at £1,797 a year.
What do customers say about these suppliers on Trustpilot?
Fuse Energy holds a 4.8 out of 5 rating with 90% five-star reviews, with customers praising its helpful staff and fast responses. OVO Energy scores 4.7 out of 5, with many users also praising its customer service, though some mention issues with communication and smart billing.
Which supplier offers a better smartphone app?
Fuse Energy has better overall app ratings. While both suppliers score highly on the Apple App Store, Fuse Energy achieves a much higher rating on the Google Play Store (4.79 compared to OVO Energy's 3.29).
How quickly does OVO Energy answer customer calls?
OVO Energy answers phone calls in an average of 1 minute 33 seconds, according to Citizens Advice data. Fuse Energy does not currently have published call wait times.
Why choose Fuse Energy over OVO Energy?
You might choose Fuse Energy if you want a much cheaper fixed deal and highly rated smartphone apps. However, OVO Energy might suit you better if you want a supplier with a proven track record in independent service rankings.
Are there exit fees for leaving these suppliers?
Both suppliers charge a £100 total exit fee on their cheapest fixed tariffs if you leave before the contract ends. Neither supplier charges an exit fee on their standard variable tariffs.
Is there a difference in their standard variable tariffs?
There is virtually no difference in price. Fuse Energy's standard variable tariff costs £1,805 a year, and OVO Energy's costs exactly the same under our assumptions.
Do these suppliers have a Which? customer score?
OVO Energy scores 61 overall in the annual Which? survey. Fuse Energy is not currently rated by Which?.
How do these suppliers compare on email response times?
OVO Energy responds to 98.5% of emails within two days. Fuse Energy does not currently have this metric recorded by Citizens Advice.
What changed this month
This month, Fuse Energy's cheapest tariff term changed from a variable tariff to a 15-month fixed deal, OVO Energy's cheapest tariff term changed from a variable tariff to a 12-month fixed deal, and OVO Energy's tariff count rose from 1 to 5. There were 39 other data changes this month — see the full changelog below for details.
Data changes this month (53)
Fuse Energy
- Trustpilot reviews6,367 → 7,274
- Trustpilot 5-star %89 → 90
- Trustpilot 4-star %4 → 3
- Trustpilot negative reviews replied %69 → 76
- iOS app ratings count542 → 548
- iOS app days since last update6 → 9
- Play Store rating4.77 → 4.7884617
- Play Store ratings count570 → 617
- Play Store days since last update24 → 9
- Play Store positive ratings %93.3 → 93.6
- Play Store negative ratings %4.8 → 4.6
- Play Store neutral ratings %1.9 → 1.8
- Play Store net-positive %88.5 → 89
- Cheapest variable tariff£1,584.42 → £1,805.29
- Cheapest fixed tariffnow available (£1,563.27)
- Cheapest tariff£1,584.42 → £1,563.27
- Cheapest tariff exit fee£0 → £100
- Cheapest tariff termvariable → 15 months
- Cheapest fixed tariff exit feenow available (£100)
- Cheapest fixed tariff termnow available (15 months)
- Tariff count1 → 3
- Fixed tariffs available0 → 2
- Shortest fixed termnow available (13 months)
- Longest fixed termnow available (15 months)
OVO Energy
- Trustpilot reviews282,070 → 287,327
- iOS app days since last update0 → 13
- iOS sampled reviews avg stars4 → 4.2
- iOS sampled positive reviews2 → 4
- iOS sampled negative reviews0 → 1
- iOS sampled neutral reviews1 → 0
- Play Store rating3.4702382 → 3.2850413
- Play Store ratings count10,218 → 10,351
- Play Store days since last update29 → 14
- Play Store positive ratings %60.4 → 55.4
- Play Store negative ratings %35.3 → 40.2
- Play Store neutral ratings %4.3 → 4.5
- Play Store net-positive %25.1 → 15.2
- Citizens Advice rank10 → 8
- Citizens Advice score2.76 → 3.3
- Complaints per 10,000 customers42.6 → 39.5
- Avg call centre wait time254 → 93
- Avg social media response time1267 → 413
- Emails responded within 2 days %83.6 → 98.5
- Cheapest fixed tariffnow available (£1,797.13)
- Cheapest tariff£1,804.82 → £1,797.13
- Cheapest tariff exit fee£0 → £100
- Cheapest tariff termvariable → 12 months
- Cheapest fixed tariff exit feenow available (£100)
- Cheapest fixed tariff termnow available (12 months)
- Tariff count1 → 5
- Fixed tariffs available0 → 4
- Shortest fixed termnow available (12 months)
- Longest fixed termnow available (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.