Octopus Energy Good Energy (September 2026)
Overview
Octopus Energy leads with cheaper tariffs and stronger customer service scores, though Good Energy is a solid choice for its 100% renewable electricity mix.
Octopus Energy provides cheaper tariffs and higher customer service scores across Citizens Advice and Which?. Good Energy offers a 100% renewable electricity mix and a highly rated Android app, but Octopus Energy may suit a wider range of households based on price and overall metrics.
About Octopus Energy and Good Energy
Who are Octopus Energy?
Set up in 2015, Octopus Energy is privately owned and has grown to become the UK's largest domestic energy supplier. It builds its own software system, Kraken, which runs its billing and is sold to other companies. The supplier stands out for its digital customer service and its Octoplus rewards programme, which gives customers free items and offers.
Products & services
Awards & recognition
Who are Good Energy?
Set up in 1999, Good Energy is one of the UK's oldest specialist green energy suppliers. It was bought by the Esyasoft Group in 2025 and focuses on green energy and related services rather than trying to be one of the biggest domestic suppliers. It has grown its business by buying solar and heat pump installation companies, and it is a certified B Corp, meaning it meets specific social and environmental standards.
Products & services
Awards & recognition
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Tariffs and pricing
Octopus Energy's cheapest option is Flexible Octopus, a variable tariff costing £1,598 a year. Good Energy's equivalent is the Good Energy Standard variable tariff at £1,710 a year. This makes Octopus Energy £112 cheaper annually, or about £9 a month. Neither of these variable options carries a fixed term or exit fees.
For households looking to lock in unit rates, Octopus Energy offers a 12-month fixed deal at £1,642 a year with a £100 exit fee. Good Energy's 12-month fixed option requires a smart meter, costs £1,724 a year and carries a £150 exit fee. In this category, the Octopus Energy fixed deal is £82 cheaper a year.
| Metric | Octopus Energy | Good Energy |
|---|---|---|
| Cheapest fixed tariff | £1,641 / year | £1,724 / year |
Tariff Options
Octopus Energy tariffs
Octopus Energy offers a range of tariffs for households. This includes standard variable and fixed-term options, as well as a wide selection of smart and specialist tariffs for homes with electric vehicles, heat pumps, solar panels, and battery storage.
Good Energy tariffs
Good Energy offers a selection of tariffs for domestic customers. The range covers standard variable and fixed-term options, along with specialist tariffs designed for electric vehicle owners, homes with heat pumps, and households that generate their own solar power.
Customer reviews
Both suppliers score 4.8 out of 5 on Trustpilot. Octopus Energy's rating is based on over 850,000 reviews, with 90% awarding five stars. Good Energy has a smaller base of around 14,000 reviews, of which 82% are five-star. When addressing complaints on the platform, Good Energy replies to 100% of its negative reviews, compared with 96% for Octopus Energy.
Reviewers frequently note Octopus Energy's fast responses and polite support staff, though some report email delays or long waits when resolving complex technical issues. Good Energy customers often highlight knowledgeable staff and appreciate that phone calls and emails are answered without automated bots. Feedback also points to a smooth installation process for solar equipment.
In the Which? annual survey, Octopus Energy achieves 74 out of 100, ahead of Good Energy at 69. Octopus Energy receives 4 out of 5 for overall customer service, whereas Good Energy scores 3 out of 5. Conversely, Good Energy performs better on smart meters, scoring 7 out of 10 compared with 5 out of 10 for Octopus Energy. On the switching process, Good Energy scores 1 out of 5, while Octopus Energy manages 3 out of 5.
App quality and features
Octopus Energy holds a slightly higher rating on the App Store, scoring 4.8 from 254,000 ratings compared with Good Energy's 4.7 from 7,200 ratings. Both apps have over 10,000 installs on Google Play, with Octopus Energy exceeding 1,000,000. On the Android platform, Good Energy takes the lead with a 4.6 rating against 4.3 for Octopus Energy.
Both suppliers update their apps regularly. A sample of recent iOS reviews for Octopus Energy indicates satisfaction with electric vehicle charging features, though some users report unexpected direct debit changes and error messages. Good Energy's recent updates added support for smart prepayment meters and improved usage graphs, although one sampled review mentions difficulties migrating from an older app version.
| Metric | Octopus Energy | Good Energy |
|---|---|---|
| Google Play rating | 4.3 / 5 | 4.6 / 5 |
Service and support
Average wait: 1.3 min
Hours: Mon–Thu 9am–5pm, Fri 9am–4pm, closed Saturday, closed Sunday
Average wait: 2 min
Hours: Weekdays 9am–5pm, closed Saturday, closed Sunday
Replies: 86% within 2 days
Hours: 24/7
Replies: 79% within 2 days
Hours: 24/7
Octopus Energy ranks 4th in the Citizens Advice table with a score of 3.67 out of 5, while Good Energy ranks 6th with a score of 3.49. When contacting support, Octopus Energy customers wait an average of 1 minute 17 seconds to speak to a representative on the phone. Good Energy customers wait an average of 2 minutes 2 seconds.
For email support, Octopus Energy responds to 86.1% of messages within two days, whereas Good Energy answers 79.3% of emails in the same timeframe. Both suppliers maintain formal vulnerability commitments registered with Citizens Advice.
Octopus Energy accepts Direct Debit, Cash/Cheque, and Prepayment. Its phone lines operate Monday to Thursday from 9am to 5pm, and Friday from 9am to 4pm. Good Energy accepts the same payment methods and is available on weekdays from 9am to 5pm. Neither supplier offers weekend call centre hours.
Complaints and performance
Complaint figures are shown with each supplier’s reporting period. No winner is declared when periods differ or one figure is missing.
Green Energy Comparison
Octopus Energy
Octopus Energy supplies a 100% zero-carbon electricity mix. Based on Citizens Advice data, its electricity fuel mix is mostly renewable, with some nuclear power. The company matches the electricity its customers use with Renewable Energy Guarantees of Origin (REGO) certificates. It also owns and runs its own wind farms and solar projects through its generation arm, and puts money into green energy generation to help drive renewable energy changes across the market.
Good Energy
Good Energy supplies a 100% renewable electricity mix. Instead of just buying certificates to match its supply, it buys its electricity directly from a community of over 3,000 independent British renewable generators. Its gas supply is made up of 10% renewable biogas, with the rest offset through Gold Standard projects. The company also invests in new green technology and helps households set up their own solar and heating systems.[1]
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 | Good Energy |
Octopus Energy leads with cheaper tariffs and stronger customer service scores, though Good Energy is a solid choice for its 100% renewable electricity mix.
Octopus Energy performs better across the majority of metrics reviewed, offering cheaper fixed and variable tariffs. It also achieves higher customer service scores with Citizens Advice and Which?, alongside faster average phone response times.
Good Energy may suit households seeking a specialist green energy supplier with a 100% renewable electricity mix. It also maintains a highly rated Android app and replies to all its negative reviews on Trustpilot. However, if price and overall customer service metrics are the primary deciding factors, Octopus Energy presents the more cost-effective option.
- Cheaper variable and fixed tariffs
- Higher Citizens Advice score and rank
- Faster average call wait times
- Specialist EV and smart tariffs
- Lower rating on Google Play
- Higher rate of Citizens Advice complaints per 10,000 customers
- 100% renewable electricity mix
- Higher rating on Google Play
- Replies to 100% of negative Trustpilot reviews
- Higher annual costs on its tariffs
- Longer average call wait times
- Lower Which? customer service score
Frequently asked questions
Which supplier is larger?
Octopus Energy is the UK's largest domestic energy supplier. Good Energy is a specialist green energy provider that focuses on renewable energy and related services rather than trying to be one of the biggest domestic suppliers.
Does Octopus Energy or Good Energy have the cheaper fixed tariff?
Octopus Energy has the cheaper fixed deal in our comparison. Its 12-month fixed tariff costs £1,642 a year, while Good Energy's 12-month fixed option costs £1,724 a year.
Who has better customer reviews?
Both suppliers score 4.8 out of 5 on Trustpilot, but Octopus Energy has a larger share of five-star ratings. Octopus Energy also scores higher in the Which? annual survey, achieving 74 out of 100 compared with Good Energy's 69.
Which supplier has the better app?
Octopus Energy has a slightly higher rating on the App Store for iOS users. However, Good Energy leads on Google Play, scoring 4.6 against Octopus Energy's 4.3.
Who answers the phone faster?
Octopus Energy has a shorter average call wait time. Its customers wait an average of 1 minute 17 seconds to speak to a team member, compared with 2 minutes 2 seconds for Good Energy.
Should I choose Octopus Energy or Good Energy?
Octopus Energy is the stronger choice for most households due to its cheaper tariffs and higher customer service scores. Good Energy suits those wanting a 100% zero-carbon electricity mix and a highly rated Android app.
Do both suppliers offer specialist tariffs?
Yes, both offer specialist options for electric vehicle owners and homes with solar panels. Octopus Energy has specialist smart tariffs, including options for heat pumps and battery storage.
When are their call centres open?
Octopus Energy is open Monday to Thursday 9am to 5pm, and Friday 9am to 4pm. Good Energy is open weekdays 9am to 5pm. Both are closed on weekends.
What changed this month
This month, Good Energy's iOS sampled negative reviews rose from 1 to 3, Good Energy's cheapest tariff exit fee fell from £150 to £0, and Good Energy's cheapest tariff term fell from 12 months to 0 months. There were 25 other data changes this month — see the full changelog below for details.
Data changes this month (32)
Octopus Energy
- Trustpilot reviews837,814 → 857,633
- iOS app ratings count249,000 → 254,000
- iOS app days since last update6 → 1
- iOS sampled reviews avg stars2 → 1.67
- Play Store rating4.3956046 → 4.3669577
- Play Store ratings count47,091 → 47,238
- Play Store days since last update2 → 1
- Play Store positive ratings %85.5 → 84.5
- Play Store negative ratings %11 → 11.7
- Play Store neutral ratings %3.5 → 3.7
- Play Store net-positive %74.5 → 72.8
- Cheapest variable tariff£1,792.32 → £1,598.38
- Cheapest fixed tariff£1,841.19 → £1,641.76
- Cheapest tariff£1,792.32 → £1,598.38
- Tariff count3 → 2
- Fixed tariffs available2 → 1
Good Energy
- Trustpilot reviews14,807 → 14,911
- iOS app ratings count7,100 → 7,200
- iOS app days since last update52 → 82
- iOS sampled reviews avg stars3.67 → 2.8
- iOS sampled negative reviews1 → 3
- Play Store rating4.6075087 → 4.661017
- Play Store ratings count2,928 → 2,957
- Play Store days since last update54 → 84
- Play Store positive ratings %91.2 → 92.6
- Play Store negative ratings %4.7 → 3.4
- Play Store net-positive %86.5 → 89.2
- Cheapest variable tariff£1,911.32 → £1,710.14
- Cheapest fixed tariff£1,788.38 → £1,723.98
- Cheapest tariff£1,788.38 → £1,710.14
- Cheapest tariff exit fee£150 → £0
- Cheapest tariff term12 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.