Fuse Energy OVO Energy (September 2026)
Overview
Fuse Energy wins with a much cheaper fixed tariff and stronger app ratings, though OVO Energy has more established independent service data.
Based on the available data, Fuse Energy is the stronger option due to a notably cheaper fixed tariff and higher app ratings. OVO Energy, however, is a larger supplier with established independent service metrics that Fuse Energy currently lacks.
About Fuse Energy and OVO Energy
Who is Fuse Energy?
Set up in 2022 by former Revolut staff, Fuse Energy is a privately owned supplier that launched to the public in 2023. It is an app-based supplier that runs its own solar and wind farms in the UK. Customers manage their accounts entirely online or through the supplier's app, which includes an artificial intelligence assistant to help answer questions.
Products & services
Who is OVO Energy?
Set up in 2009, OVO Energy is one of the UK's largest domestic suppliers. It grew significantly in 2020 when it bought the household energy business of SSE. In May 2026, it was announced that the German energy company E.ON plans to buy OVO Energy, a deal that would increase E.ON's scale in the UK market. It runs a customer loyalty programme called Beyond, which gives customers perks and savings.
Products & services
Awards & recognition
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Tariffs and pricing
Fuse Energy's cheapest overall tariff is the August 2026 Fixed (18m) V15, priced at £1,489 a year. This 18-month fixed deal carries a £100 exit fee. In contrast, OVO Energy's cheapest overall option is its Simpler Energy variable tariff, which costs £1,611 a year and comes with no fixed term or exit fees.
When comparing fixed deals directly, Fuse Energy offers a lower annual cost. Its 18-month fixed tariff is £253 cheaper per year than OVO Energy's most affordable fixed option, the 1 Year Fixed + Boiler Cover 27 August 2026. The OVO Energy tariff costs £1,742 a year for a 12-month term and also includes a £100 exit fee.
For households seeking a standard variable rate, the two suppliers are identical in price under our typical usage assumptions. Both Fuse Energy's Variable Import tariff and OVO Energy's Simpler Energy tariff cost £1,611 a year.
Tariff Options
Fuse Energy
Fuse Energy offers a standard variable tariff and fixed-term deals to suit different household needs. It also provides specialist smart tariffs for homes that can shift their energy use to off-peak times, as well as an export tariff for homes that generate their own power.
OVO Energy
OVO Energy offers a standard variable tariff alongside fixed-term deals that lock in prices for a year. Customers can also choose fixed tariffs that include extra services like boiler cover or a green energy upgrade, as well as specialist add-ons for electric vehicle charging and solar export.
Customer reviews
Both suppliers hold high aggregate scores on Trustpilot. Fuse Energy maintains a 4.8 out of 5 rating from a medium volume of 10,754 reviews. OVO Energy sits closely behind with a 4.7 out of 5 rating, though this is drawn from a significantly larger pool of 299,269 reviews.
A closer look at the rating distributions shows that 92% of Fuse Energy's reviews are five-star, compared to 78% for OVO Energy. However, OVO Energy demonstrates a higher response rate to criticism, replying to 99% of its negative reviews versus Fuse Energy's 79%.
Feedback from Fuse Energy customers frequently highlights helpful staff and efficient service, with many noting a straightforward switching process. Reviewers also point to prompt response times during account setup and smart device installations.
OVO Energy customers similarly report polite and patient staff interactions when resolving account or technical issues. Conversely, a portion of OVO Energy reviewers cite long wait times and delayed communication as drawbacks.
In independent surveys, OVO Energy holds a Which? customer satisfaction score of 61 out of 100. It receives 2 out of 5 for both customer service and value for money, but achieves a 9 out of 10 for helping those who need it. Fuse Energy is not currently rated by Which?.
App quality
Fuse Energy holds higher app ratings across both major platforms, although OVO Energy's scores are based on a much larger user base. On the App Store, Fuse Energy scores 4.8 out of 5 from 717 ratings, while OVO Energy scores 4.6 from 18,000 ratings. Both iOS applications have received recent updates.
The rating gap is more pronounced on Google Play. Fuse Energy achieves a 4.7 out of 5 rating from 821 reviews. In contrast, OVO Energy scores 2.8 out of 5 from 10,825 ratings, with its Android app recording over a million installs.
A sample of recent iOS feedback for Fuse Energy indicates a positive app experience, though the overall sample size remains small. OVO Energy's recent iOS reviews are generally positive as well, though a subset of users report formatting issues on larger screens.
Service and support
Average wait: 1.6 min
Hours: Weekdays 9am–5pm, closed Saturday, closed Sunday
Replies: 99% within 2 days
Hours: 24/7
Average response: ~7 min
Hours: Business hrs
OVO Energy features a complete set of service data from Citizens Advice, whereas Fuse Energy is not currently rated. OVO Energy scores 3.3 out of 5 overall, placing it 8th in the latest Citizens Advice rankings.
According to the data, OVO Energy customers wait an average of 1 minute 33 seconds to connect with a call centre agent. The supplier responds to 98.5% of emails within two days and averages 6 minutes 53 seconds for social media replies.
OVO Energy maintains formal vulnerability commitments registered with Citizens Advice. Its contact centre operates on weekdays from 9am to 5pm and is closed on weekends. The supplier accepts Direct Debit, Cash/Cheque, and Prepayment methods.
| Metric | Fuse Energy | OVO Energy |
|---|---|---|
| Average social media response time | N/A | 6 minutes 53 seconds |
Complaints and performance
There is no complaints data available for Fuse Energy. For OVO Energy, the figures cover the second quarter of 2026 (Q2 2026).
Green Energy Comparison
Fuse Energy
Fuse Energy states it does not use Renewable Energy Guarantees of Origin (REGO) certificates to claim its energy is 100% green. Instead, it sells its certificates and reinvests the money into building more clean energy infrastructure, such as solar and wind farms. Its regulated fuel mix is largely grid energy, with some solar and wind power.[1]
OVO Energy
OVO Energy stopped using REGO certificates as standard in 2023 and now buys electricity directly from independent UK renewable generators. Customers can choose to pay an extra monthly fee for a Greener Electricity upgrade, which gives them 100% renewable electricity from traceable sources and helps fund new renewable projects. The supplier has a Path to Zero plan to reach net zero and has planted 5 million trees in schools and communities. Even with these schemes, its actual electricity fuel mix is largely fossil fuels, with some renewable and nuclear energy.[2]
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 with a much cheaper fixed tariff and stronger app ratings, though OVO Energy has more established independent service data.
Based on the available data, Fuse Energy may be the more suitable option for households prioritising price and digital experience. It offers a notably cheaper fixed tariff and maintains high customer review scores. Its app ratings are also higher across both platforms, particularly for Android users.
Alternatively, OVO Energy is one of the UK's largest suppliers and may appeal to households that prefer a company with established independent service data. Because Fuse Energy is a newer entrant, it lacks scores from Citizens Advice and Which?, making it harder to evaluate its long-term service reliability. It is also worth noting that OVO Energy is the subject of a planned takeover by E.ON, a move that would further increase its market scale.
- Cheapest fixed tariff in this comparison
- High Trustpilot score with 92% five-star reviews
- Higher app ratings on both platforms
- No Citizens Advice or Which? scores available
- Much smaller volume of customer reviews
- Established Citizens Advice and Which? scores
- Very high volume of customer reviews
- Replies to 99% of negative Trustpilot reviews
- Fixed tariff costs £253 a year more than Fuse Energy's
- Low rating on Google Play
- Lower share of five-star Trustpilot reviews
Frequently asked questions
Which is the better supplier out of Fuse Energy and OVO Energy?
Fuse Energy wins based on the available evidence, as it offers a significantly cheaper fixed tariff and stronger app ratings. However, OVO Energy is one of the UK's largest suppliers and has established independent service data, which Fuse Energy currently lacks.
Which supplier offers the cheaper fixed tariff?
Fuse Energy offers the cheaper fixed tariff. Its 18-month fixed deal costs £1,489 a year, which is £253 less than OVO Energy's cheapest fixed option.
Do customers prefer Fuse Energy or OVO Energy?
Both suppliers have strong Trustpilot scores. Fuse Energy scores 4.8 out of 5 with 92% five-star reviews, while OVO Energy scores 4.7 out of 5 with 78% five-star reviews, though OVO Energy has a much larger volume of reviews.
Which supplier has the better mobile app?
Fuse Energy has higher app ratings on both platforms. It scores 4.8 out of 5 on the App Store and 4.7 on Google Play, whereas OVO Energy scores 4.6 on the App Store and 2.8 on Google Play.
How do call centre wait times compare between the two suppliers?
OVO Energy customers wait an average of 1 minute 33 seconds to speak to a call centre agent, according to Citizens Advice. Fuse Energy does not currently have call wait time data available.
Should I switch to Fuse Energy or OVO Energy?
If price and app quality are your main priorities, Fuse Energy is the better choice. If you prefer a larger supplier with established independent service scores, OVO Energy may suit you better.
Why does Fuse Energy not have a Citizens Advice score?
Fuse Energy is a relatively new supplier and has not yet been included in the independent service surveys run by Citizens Advice and Which?. OVO Energy is fully rated by both organisations.
Are their standard variable tariffs different in price?
No, the two suppliers are effectively identical on variable pricing under our assumptions. Both suppliers' cheapest variable tariffs cost about £1,611 a year.
Is OVO Energy being bought by another company?
Yes, it was announced in May 2026 that the German energy company E.ON plans to buy OVO Energy, a deal that would increase E.ON's scale in the UK market.
What changed this month
This month, OVO Energy's play store net-positive % fell from 1.3 to -9.2, Fuse Energy's play store negative ratings % rose from 1.7 to 6.4, and Fuse Energy's Trustpilot 3-star % rose from 1 to 3. There were 32 other data changes this month — see the full changelog below for details.
Data changes this month (39)
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
OVO Energy
- Trustpilot reviews293,863 → 299,269
- Trustpilot 5-star %77 → 78
- Trustpilot 4-star %10 → 9
- iOS app days since last update37 → 25
- Play Store rating3.0206423 → 2.8167422
- Play Store ratings count10,621 → 10,825
- Play Store days since last update37 → 26
- Play Store positive ratings %48.2 → 43.2
- Play Store negative ratings %46.9 → 52.4
- Play Store neutral ratings %4.9 → 4.4
- Play Store net-positive %1.3 → -9.2
- Cheapest variable tariff£1,804.82 → £1,610.88
- Cheapest fixed tariff£1,923.42 → £1,742.03
- Cheapest tariff£1,804.82 → £1,610.88
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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.