Octopus Energy Ecotricity (July 2026)
Overview
Octopus Energy is the clear winner, offering significantly cheaper tariffs and highly rated apps, though Ecotricity answers calls faster.
Octopus Energy leads this comparison, offering cheaper tariffs and higher customer review scores. Ecotricity provides faster call centre response times and a 100% renewable fuel mix, but its higher prices and lower-rated apps make Octopus Energy the stronger overall choice based on our data.
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Tariffs and pricing
Octopus Energy is currently the UK's largest energy supplier. It offers the lowest-priced overall deal in this comparison with its Octopus 12M Fixed July 2026 v2 tariff, costing £1,697 a year. This is a 12-month fixed contract with a £100 total exit fee. By contrast, Ecotricity’s lowest-priced option is its Standard Variable Green Tariff at £2,032 a year, making Octopus Energy the more affordable option for those prioritising price.
Ecotricity’s lowest-priced deal is a variable contract with no fixed term and zero exit fees. Octopus Energy also provides a variable tariff, Flexible Octopus, which at £1,792 a year costs less than Ecotricity's equivalent variable option.
Our current data does not include pricing for a fixed tariff from Ecotricity. Additionally, neither supplier currently offers the Energy Switch Guarantee.
Customer reviews
Both suppliers hold positive ratings on Trustpilot, though Octopus Energy scores higher. It maintains a 4.8 rating from a large volume of reviews, with 90% of customers awarding five stars. Ecotricity holds a 4.2 rating, comprising 66% five-star reviews and a 23% one-star share. Both companies reply to the vast majority of their negative reviews, typically within a week for Octopus Energy and within 24 hours for Ecotricity.
In written feedback, Octopus Energy reviewers frequently mention helpful staff and quick response times, though some note issues with smart billing and phone lines. Ecotricity customers highlight positive service experiences, with many appreciating the personalised approach and the company's focus on sustainability.
In the latest Which? survey, Octopus Energy scores 74 overall while Ecotricity scores 66. Octopus Energy achieves 4 out of 5 for overall customer service, compared to Ecotricity's 2 out of 5. Octopus Energy also scores 10 out of 10 for helping those who need it, and 4 out of 5 for clarity of statements. Ecotricity performs slightly better in complaints handling, scoring 9 out of 15 compared to Octopus Energy's 8 out of 15. However, Ecotricity scores 1 out of 5 on switching.
App experience
Octopus Energy records higher scores for app quality. Its iOS app holds a 4.8 rating from over 245,000 ratings, while Ecotricity has a 1.8 rating from a smaller user base. On the Google Play Store, Octopus Energy scores 4.4 compared to Ecotricity's 2.7. Octopus Energy also registers over 1,000,000 Android installs.
Both suppliers maintain their apps actively, with Octopus Energy pushing updates recently. Ecotricity also releases recent updates, citing bug fixes and styling improvements. However, a sample of Ecotricity iOS reviews indicates complaints about a recent update, with users stating the app functions as a basic website wrapper and lacks access to historical bills.
Service and support
According to Citizens Advice, Octopus Energy ranks 4th with a score of 3.67 out of 5, while Ecotricity places 7th with a score of 3.36. Both suppliers maintain formal vulnerability commitments registered with the organisation.
Ecotricity records faster contact speeds. It answers phone calls in an average of 45 seconds, compared to 1 minute 17 seconds for Octopus Energy. Ecotricity also responds to 95% of emails within two days, compared to the 86% rate from Octopus Energy.
Octopus Energy accepts Direct Debit, Cash/Cheque, and Prepayment, operating Monday to Thursday 9am to 5pm, and Friday 9am to 4pm. Ecotricity accepts the same payment methods but provides longer contact hours, operating on weekdays from 9am to 7pm, and at weekends from 9am to 5pm.
Complaints and performance
Looking at data from the last three months of 2025, Ecotricity gets fewer complaints than Octopus Energy. Ecotricity records 320 complaints for every 100,000 customers, while Octopus Energy records 495.
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | Octopus Energy |
| Overall customer service | Octopus Energy |
| A well-rated mobile app | Octopus Energy |
| A greener fuel mix | Ecotricity |
Octopus Energy is the clear winner, offering significantly cheaper tariffs and highly rated apps, though Ecotricity answers calls faster.
Octopus Energy leads this comparison across most metrics. It offers lower-priced tariffs, higher overall customer satisfaction scores, and higher-rated mobile apps. As the UK's largest energy supplier, it provides a service that costs less annually than Ecotricity based on our data.
Ecotricity demonstrates strengths in its contact times, answering calls faster and responding to emails at a higher rate. It also offers weekend support hours and a 100% renewable fuel mix. However, its higher prices and lower-rated apps mean Octopus Energy may suit a wider range of households seeking lower costs.
- Cheaper overall tariff
- Higher Trustpilot score
- Higher-rated mobile apps
- Slower call centre wait times than Ecotricity
- Lower email response rate
- Faster call answering
- Higher email response rate
- Weekend opening hours
- More expensive tariffs
- Low app store ratings
- Lower Which? customer service score
Frequently asked questions
Which supplier is better overall, Octopus Energy or Ecotricity?
Octopus Energy wins this comparison. It offers significantly cheaper tariffs, higher Trustpilot and Which? scores, and much better app ratings. Ecotricity is stronger on call answering times but costs more.
Is Octopus Energy cheaper than Ecotricity?
Yes. The cheapest overall tariff from Octopus Energy costs £1,697 a year, while Ecotricity's cheapest deal is £2,032 a year. Octopus Energy is cheaper on the overall and variable tariffs included in this comparison.
Do customers prefer Octopus Energy or Ecotricity?
Customers rate Octopus Energy higher overall. It holds a 4.8 Trustpilot rating and a Which? score of 74. Ecotricity also has positive feedback with a 4.2 Trustpilot rating, but it scores lower in Which? surveys and has a higher share of one-star reviews.
Which supplier has a better mobile app?
Octopus Energy has much better apps. Its iOS app scores 4.8, while Ecotricity's iOS app scores just 1.8, with recent reviews complaining about removed features and usability issues.
How quickly do Octopus Energy and Ecotricity answer the phone?
Ecotricity answers calls faster, taking an average of 45 seconds. Octopus Energy takes an average of 1 minute 17 seconds to answer phone calls.
Should I switch to Octopus Energy or Ecotricity?
Octopus Energy is the better choice for most households due to its lower prices and strong apps. Ecotricity may appeal to you if you prioritise fast call answering and a 100% zero-carbon fuel mix, provided you are willing to pay more.
Do Octopus Energy and Ecotricity charge exit fees?
Octopus Energy charges a £100 total exit fee on its cheapest fixed tariff, but its variable tariff has no exit fees. Ecotricity's standard variable tariff also has no exit fees.
Do Octopus Energy and Ecotricity open on weekends?
Ecotricity is open on Saturdays and Sundays from 9am to 5pm. Octopus Energy is closed on weekends.
How do Octopus Energy and Ecotricity perform in Which? rankings?
Octopus Energy scores 74 overall in the latest Which? survey, achieving 4 out of 5 for customer service. Ecotricity scores 66 overall and gets 2 out of 5 for customer service, though it scores well for complaints handling.
Why does the Ecotricity app have low ratings?
Ecotricity's iOS app scores 1.8 out of 5. Recent customer reviews complain that an update downgraded the app to a basic website wrapper, making it harder to check historical bills and energy usage.
What changed this month
This month, Octopus Energy's cheapest tariff term changed from a variable tariff to a 12-month fixed deal, Ecotricity's Citizens Advice rank rose from 1 to 7, and Octopus Energy's cheapest tariff exit fee rose from £0 to £100. There were 32 other data changes this month — see the full changelog below for details.
Data changes this month (37)
Octopus Energy
- Trustpilot reviews807,247 → 821,111
- iOS app ratings count244,000 → 245,000
- iOS app days since last update25 → 9
- Play Store rating4.4444447 → 4.4341745
- Play Store ratings count46,777 → 46,873
- Play Store days since last update25 → 11
- Play Store positive ratings %87 → 86.7
- Play Store negative ratings %9.8 → 10
- Play Store neutral ratings %3.2 → 3.3
- Play Store net-positive %77.2 → 76.7
- Citizens Advice rank3 → 4
- Citizens Advice score3.78 → 3.67
- Complaints per 10,000 customers21.8 → 21.3
- Avg call centre wait time72 → 77
- Emails responded within 2 days %90.4 → 86.1
- Cheapest variable tariff£1,566.25 → £1,792.32
- Cheapest fixed tariff£1,691.36 → £1,697.05
- Cheapest tariff£1,566.25 → £1,697.05
- Cheapest tariff exit fee£0 → £100
- Cheapest tariff termvariable → 12 months
Ecotricity
- Trustpilot reviews6,530 → 6,559
- Trustpilot negative reviews replied %100 → 98
- iOS app days since last update25 → 39
- Play Store rating2.72 → 2.7
- Play Store ratings count178 → 179
- Play Store days since last update30 → 23
- Play Store negative ratings %52 → 53.1
- Play Store neutral ratings %10.9 → 9.7
- Play Store net-positive %-14.9 → -16
- Citizens Advice rank1 → 7
- Citizens Advice score3.93 → 3.36
- Complaints per 10,000 customers13 → 21.5
- Avg call centre wait time46 → 45
- Emails responded within 2 days %93.5 → 95.2
- Cheapest variable tariff£1,825.18 → £2,032.01
- Cheapest tariff£1,825.18 → £2,032.01
- Cheapest tariff termvariable → 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.