Good Energy Scottish Power (September 2026)
Overview
Good Energy is the better fit for stronger customer reviews and a cheaper fixed deal, while Scottish Power offers the cheaper variable tariff and stronger app scores.
Good Energy achieves higher scores for customer satisfaction and Citizens Advice metrics, alongside offering a lower-priced fixed deal. Conversely, Scottish Power provides a cheaper standard variable tariff and faster call response times.
About Good Energy and Scottish Power
Good Energy
Good Energy was founded in 1999 with a focus on renewable electricity. It also installs solar panels, home batteries and heat pumps, and pays eligible generators for exported power.
Scottish Power
ScottishPower supplies household gas and electricity and is also a renewable electricity generator. Its UK generation business includes a substantial portfolio of onshore wind farms.
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Tariffs and pricing
Scottish Power's lowest-priced option overall is its Standard variable deal, estimated at £1,611 a year. This comes in £99 cheaper annually than Good Energy's most affordable equivalent, the Good Energy Standard variable tariff at £1,710 a year. As variable tariffs, neither requires a fixed term or charges exit fees.
For households who prefer knowing their unit rates in advance, Good Energy provides the cheaper fixed option. The Good Energy 12m Fix Aug26 tariff costs £1,724 a year over a 12-month term, undercutting Scottish Power's Exclusive Help Beat Cancer Fixed Sep 2027 SM2 (£1,830 a year) by £106 annually. However, Good Energy applies a £150 exit fee to this tariff, whereas Scottish Power's fixed deal has no exit fees.
| Metric | Good Energy | Scottish Power |
|---|---|---|
| Cheapest tariff | £1,710 / year | £1,610 / year |
| Cheapest variable tariff | £1,710 / year | £1,610 / year |
| Cheapest tariff exit fee | £0 | £0 |
| Cheapest fixed tariff exit fee | £150 | £0 |
Tariff Options
Good Energy
Good Energy offers mainstream variable and fixed deals, alongside specialist options for homes with green technology. Its fixed terms last for 12 months.
Scottish Power
Scottish Power offers standard variable and fixed tariffs, as well as options for electric vehicle drivers and tracker tariffs. Its fixed contracts last for 12 months.
Customer reviews
Good Energy records higher overall customer sentiment, holding a 4.8 Trustpilot rating from a medium volume of 14,911 reviews. Scottish Power sits at a 4.4 rating, though this is drawn from a much larger sample of 203,838 reviews. Looking at the breakdown, Good Energy receives a larger share of five-star scores (82%) compared to Scottish Power (60%), while Scottish Power registers a higher proportion of one-star ratings at 19%.
Analysis of Trustpilot feedback indicates that Good Energy customers often highlight knowledgeable staff, efficient communication, and smooth installation processes. Meanwhile, Scottish Power users note straightforward account management and helpful staff, although some report issues with unexpected costs, rising prices, and confusing billing. Both companies actively monitor negative feedback; Good Energy replies to 100% of critical reviews, while Scottish Power responds to 92%.
In the annual Which? customer satisfaction survey, Good Energy achieves a score of 69, ahead of Scottish Power's 56. Good Energy leads in several sub-categories, scoring 9 out of 15 for complaints (versus Scottish Power's 4 out of 15) and 7 out of 10 for smart meters (compared to 4 out of 10). Conversely, Scottish Power performs better in the switching category, receiving 3 out of 5 against Good Energy's 1 out of 5.
App quality and features
Both suppliers provide well-rated mobile apps, though Scottish Power's metrics reflect a significantly larger user base, with over 1,000,000 Android installs compared to Good Energy's 10,000+. On the App Store, Scottish Power holds a 4.8 rating across 87,000 reviews, while Good Energy maintains a 4.7 from 7,200 reviews.
A similar pattern appears on Google Play, where Scottish Power scores 4.7 against Good Energy's 4.6. Scottish Power also shows more frequent software maintenance, with very recent updates logged on both platforms, whereas Good Energy's apps were last updated approximately three months ago.
Recent iOS feedback for Good Energy points to helpful, human-led customer service, though a few users mention technical friction when transitioning to the newer app version. For Scottish Power, iOS reviewers frequently highlight the detailed monthly usage breakdowns, while some note frustration regarding smart meter connectivity and unexpected charges.
| Metric | Good Energy | Scottish Power |
|---|---|---|
| Google Play rating | 4.6 / 5 | 4.7 / 5 |
Service and support
Average wait: 2 min
Hours: Weekdays 9am–5pm, closed Saturday, closed Sunday
Average wait: 1.3 min
Hours: Weekdays 9am–5pm, closed Saturday, closed Sunday
Replies: 79% within 2 days
Hours: 24/7
Replies: 94% within 2 days
Hours: 24/7
Average response: ~2 min
Hours: Business hrs
Good Energy places 6th in the Citizens Advice ratings with an overall score of 3.49 out of 5, ahead of Scottish Power, which ranks 10th with 2.94. Good Energy also registers a lower volume of formal grievances, recording 10.9 complaints per 10,000 customers compared to Scottish Power's 61.8.
Despite this, Scottish Power connects customers to support staff more quickly. Its average call centre wait time is 1 minute 16 seconds, compared to Good Energy's 2 minutes 2 seconds. Scottish Power also replies to 94.3% of emails within two days (versus 79.3% for Good Energy) and reports an average social media response time of 2 minutes 25 seconds, a data point Good Energy does not currently publish.
Both suppliers maintain formal vulnerability commitments registered with Citizens Advice. Payment options are identical, with both accepting Direct Debit, Cash/Cheque, and Prepayment. Additionally, their phone lines operate on the same schedule: 9am to 5pm on weekdays, and closed on weekends.
| Metric | Good Energy | Scottish Power |
|---|---|---|
| Average social media response time | N/A | 2 minutes 25 seconds |
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
Good Energy
Good Energy offers a 100% renewable electricity mix. It aims to match customer demand with renewable generation in real time. For gas, it supplies a mix of biogas and carbon-neutral gas offset through environmental projects. It also installs solar panels, home batteries, heat pumps, and electric vehicle (EV) chargers to help households generate their own power. It was named a Which? Eco Provider for Energy in 2026, marking its sixth year in a row winning the title. It also won Best Small Supplier at the 2025 Uswitch Energy Awards and holds the Uswitch Green Tariff Gold Standard.[1][2]
Scottish Power
Scottish Power's domestic electricity fuel mix is largely fossil fuels, with some renewable and nuclear power. While its standard mix relies heavily on fossil fuels, it offers specific green tariffs that provide 100% green electricity. The company supports homes to become greener by installing solar panels, batteries, and EV chargers. Its parent company is a major global renewable energy developer, and Scottish Power focuses its wider investments on building renewable generation.
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | Scottish Power |
| Overall customer service | Good Energy |
| A well-rated mobile app | Scottish Power |
| A greener fuel mix | Good Energy |
Good Energy is the better fit for stronger customer reviews and a cheaper fixed deal, while Scottish Power offers the cheaper variable tariff and stronger app scores.
Good Energy scores higher across most customer service and independent review metrics, which may suit households prioritising support quality. It carries a higher Trustpilot rating, a stronger Citizens Advice score, and currently provides a cheaper fixed tariff. As a smaller specialist supplier, Good Energy has been owned by the technology business Esyasoft since 2025.
Scottish Power remains a viable alternative, particularly for households seeking lower variable rates, as its standard variable deal currently undercuts Good Energy's equivalent. As one of the UK's largest suppliers, Scottish Power also demonstrates faster call and email response times, alongside highly rated apps tested by a significantly larger user base.
The comparison is finely balanced: Good Energy is stronger on service evidence and fixed-tariff pricing, while Scottish Power suits households prioritising the lowest variable tariff or faster contact-centre responses.
- Lower-priced fixed tariff available
- Higher Trustpilot and Citizens Advice scores
- Fewer complaints per 10,000 customers
- Standard variable tariff costs more
- Longer wait times for calls and emails
- Apps receive less frequent updates
- Lower-priced standard variable tariff
- Faster call centre and email response times
- Highly rated apps with recent updates
- Fixed tariff costs more
- Lower overall Citizens Advice score
- Higher volume of formal complaints
Frequently asked questions
Which supplier is better overall, Good Energy or Scottish Power?
Good Energy is the stronger choice for higher customer satisfaction scores, a better Citizens Advice ranking and a cheaper fixed tariff. Scottish Power may suit households wanting a cheaper standard variable tariff and faster responses to calls and emails.
Who has the cheapest energy tariff, Good Energy or Scottish Power?
Scottish Power currently offers the cheaper standard variable tariff, which costs around £1,611 a year compared to Good Energy's £1,710. However, if you want a fixed deal, Good Energy is cheaper at £1,724 a year, while Scottish Power's cheapest fixed option is £1,830.
Does Good Energy or Scottish Power have better customer reviews?
Good Energy has stronger customer reviews, holding a 4.8-star rating on Trustpilot compared to Scottish Power's 4.4 stars. Good Energy also has a higher percentage of five-star reviews and scores better in the annual Which? customer satisfaction survey.
Which supplier offers the better mobile app?
Both suppliers offer highly rated apps. Scottish Power has a slight edge on the App Store with a 4.8 rating compared to Good Energy's 4.7. On Google Play, both apps score 4.7, though Scottish Power's rating is based on a much larger number of ratings.
Is Good Energy or Scottish Power easier to contact?
Scottish Power is faster to reach, answering calls in an average of 1 minute 16 seconds, compared to Good Energy's 2 minutes 2 seconds. Scottish Power also replies to emails more quickly. Both suppliers operate their phone lines from 9am to 5pm on weekdays.
Should I switch to Good Energy or Scottish Power?
If you want high customer service scores and the cheapest fixed deal, Good Energy is the stronger choice. However, if you prefer a cheaper variable tariff with no fixed term and want faster call response times, Scottish Power is a competitive alternative.
Do Good Energy and Scottish Power charge exit fees?
Neither supplier charges exit fees on their standard variable tariffs. For fixed deals, Good Energy's cheapest fixed tariff carries a £150 exit fee, while Scottish Power's cheapest fixed option has no exit fee.
Do Good Energy and Scottish Power have vulnerability commitments?
Yes, both Good Energy and Scottish Power have formal vulnerability commitments registered with Citizens Advice, meaning they have agreed to specific standards for supporting customers who need extra help.
How do Good Energy and Scottish Power perform in Which? rankings?
Good Energy performs better in the Which? customer satisfaction survey, scoring 69 compared to Scottish Power's 56. Good Energy also achieves higher sub-scores for handling complaints and supporting customers who need help.
What changed this month
This month, Scottish Power's iOS sampled positive reviews rose from 1 to 3, Good Energy's iOS sampled negative reviews rose from 1 to 3, and Scottish Power's iOS sampled reviews avg stars rose from 2.33 to 6. There were 23 other data changes this month — see the full changelog below for details.
Data changes this month (32)
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
Scottish Power
- Trustpilot reviews198,589 → 203,838
- Trustpilot negative reviews replied %91 → 92
- iOS app ratings count86,000 → 87,000
- iOS app days since last update26 → 28
- iOS sampled reviews avg stars2.33 → 6
- iOS sampled positive reviews1 → 3
- iOS sampled negative reviews2 → 0
- Play Store rating4.7281113 → 4.731496
- Play Store ratings count95,532 → 96,905
- Play Store days since last update27 → 28
- Play Store positive ratings %94.2 → 94.3
- Play Store neutral ratings %1.3 → 1.2
- Play Store net-positive %89.7 → 89.8
- Cheapest variable tariff£1,804.74 → £1,610.81
- Cheapest fixed tariff£1,990.1 → £1,829.85
- Cheapest tariff£1,804.74 → £1,610.81
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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.