EDF Energy Scottish Power (August 2026)
Overview
This comparison is close: EDF Energy has lower-priced fixed and variable tariffs, while Scottish Power performs better for overall customer service and mobile app ratings.
EDF Energy leads this comparison due to its lower-priced variable and fixed tariffs, supported by a higher Trustpilot rating. Scottish Power may suit households prioritising mobile app quality and faster call centre response times.
About EDF Energy and Scottish Power
Who are EDF Energy?
EDF Energy is one of the UK's largest domestic energy suppliers. It was formed in 2002 and is wholly owned by the French state-owned EDF Group. As well as supplying gas and electricity to homes, it generates power and runs energy services. The supplier offers standard, fixed, and specialist tariffs, and a key difference is its focus on nuclear power rather than just renewable sources.
Who are Scottish Power?
Scottish Power is one of the UK's largest energy suppliers. Founded in 1990, it is now wholly owned by the Spanish utility group Iberdrola. The company supplies gas and electricity to homes, runs the local electricity network in parts of the UK, and generates its own power. It offers standard, fixed, and specialist tariffs, and a key feature is its long-running partnership with Cancer Research UK, which raises money through specific tariffs.
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Tariffs and pricing
EDF Energy offers the lowest-priced overall deal in this comparison. Its Simply Tracker Sep27 variable tariff costs £1,755 a year and carries a £50 exit fee with no fixed term. In contrast, Scottish Power's lowest-priced option is its Standard variable tariff at £1,805 a year, which includes a £0 exit fee, allowing customers to switch without penalty.
For households preferring to lock in their rates, EDF Energy provides the lower-cost fixed deal. The Simply Fixed 2Yr Aug28 tariff is priced at £1,824 a year for a 24-month term, though it includes a £150 exit fee. Scottish Power's lowest-priced fixed alternative, the Exclusive Help Beat Cancer Fixed Aug 2027 SM2, costs £1,990 a year for a 12-month term but features a £0 exit fee.
EDF Energy and Scottish Power: Tariff Options
EDF Energy tariffs
EDF Energy offers a range of mainstream household tariffs, including standard variable and fixed-rate options with terms from 12 to 24 months. It also provides specialist deals for electric vehicle owners, homes with solar panels, and customers who can shift their energy use to off-peak times.
Scottish Power tariffs
Scottish Power offers mainstream standard variable and fixed-rate tariffs with 12-month terms. It also provides a variety of specialist options, including tracker tariffs, green energy deals, and specific rates for homes with electric vehicles, heat pumps, or solar panels.
Customer reviews
EDF Energy holds the higher Trustpilot rating, scoring 4.8 out of 5 across 243,334 reviews. It maintains an 83% share of five-star ratings, alongside 7% one-star reviews. Reviewers frequently mention polite staff, quick responses, and efficient customer service.
Scottish Power achieves a 4.4 out of 5 Trustpilot rating based on 198,589 reviews. Within this total, 60% are five-star ratings and 19% are one-star. Feedback often highlights patient and friendly staff, though some users note concerns regarding pricing, billing issues, and long hold times.
In the annual Which? survey, EDF Energy receives an overall score of 58 out of 100, slightly ahead of Scottish Power's 56. EDF Energy scores 9 out of 10 for helping those who need it. Conversely, Scottish Power scores 7 out of 12 for contacting your supplier, compared to EDF Energy's 3 out of 12 for the same metric. Scottish Power also achieves a higher switching sub-score, an area where EDF Energy receives a lower rating.
App quality and ratings
Scottish Power achieves higher scores across both major mobile app stores. Its iOS application holds a 4.8 out of 5 from 86,000 ratings, while the Google Play version scores 4.7 out of 5 from 95,532 ratings. Both suppliers maintain large user bases, recording over a million Android installs each, and both have recently updated their software to improve performance.
EDF Energy's applications score slightly lower in comparison. The iOS app receives a 4.6 out of 5 rating across 185,000 ratings, and the Google Play edition scores 4.4 out of 5 from 50,315 ratings. A sample of recent iOS reviews for both providers indicates isolated complaints regarding smart meter display issues, despite the high overall averages.
Customer service and support
Scottish Power and EDF Energy receive similar overall ratings from Citizens Advice. Scottish Power scores 2.94 out of 5 to rank 10th in the table, while EDF Energy scores 2.90, placing 11th. Both providers maintain formal vulnerability commitments registered with Citizens Advice.
Scottish Power records shorter phone wait times, averaging 1 minute 16 seconds compared to 2 minutes 46 seconds for EDF Energy. Additionally, Scottish Power responds to 94.3% of emails within two days, whereas EDF Energy manages 85.6%. However, EDF Energy registers fewer complaints per 10,000 customers than Scottish Power.
EDF Energy operates its phone lines from 8am to 6pm Monday to Thursday, and 8am to 4pm on Fridays. Scottish Power's lines are available on weekdays between 9am and 5pm. Both suppliers close their call centres on weekends and accept payments via Direct Debit, cash, cheque, and prepayment methods.
Complaints and performance
EDF Energy and Scottish Power have published their complaints data for different periods, so we cannot make a direct comparison. EDF Energy's figures are from the first quarter of 2025, while Scottish Power's data covers the fourth quarter of 2025.
Green energy comparison
EDF Energy's green commitments
According to Citizens Advice figures for January to March 2026, EDF Energy's overall electricity fuel mix is largely nuclear, with some fossil fuels and renewables. The company focuses on zero-carbon electricity, which it defines as power from nuclear and renewable sources. It states that it is Britain's biggest generator of zero-carbon electricity and backs its electric vehicle tariffs with 100% zero-carbon nuclear electricity as standard. The supplier also has a target to reach net zero emissions by 2050.[1]
Scottish Power's green commitments
According to Citizens Advice figures for January to March 2026, Scottish Power's overall electricity fuel mix is largely fossil fuels, with some renewables and nuclear. Despite this overall mix, the supplier offers specific green tariffs that match 100% of customers’ electricity use with REGO certificates sourced from the ScottishPower Group’s own renewable generation. The company is working towards a net zero target and encourages greener living by offering rewards to customers who install solar panels and batteries.
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | EDF Energy |
| Overall customer service | Scottish Power |
| A well-rated mobile app | Scottish Power |
| A greener fuel mix | EDF Energy |
This comparison is close: EDF Energy has lower-priced fixed and variable tariffs, while Scottish Power performs better for overall customer service and mobile app ratings.
EDF Energy leads this comparison primarily due to its lower-priced fixed and variable tariffs, alongside a higher Trustpilot rating. Scottish Power may be a suitable alternative for households prioritising mobile app ratings or shorter call centre wait times.
EDF Energy may suit households focused on keeping their overall energy costs lower, given its pricing advantage in this comparison. Conversely, Scottish Power could appeal to customers who prioritise shorter phone wait times and higher-rated mobile applications.
- Lower-priced overall variable tariff
- Lower-priced fixed tariff option
- Higher Trustpilot rating
- Higher Which? score for helping those in need
- Longer average call centre wait times
- Applies exit fees to its lowest-priced fixed and variable tariffs
- Shorter average call centre wait times
- Higher app ratings across iOS and Android
- No exit fees on its lowest-priced fixed tariff
- Higher-priced fixed and variable tariffs
- Larger proportion of one-star Trustpilot reviews
- Higher volume of complaints per 10,000 customers
Frequently asked questions
Which is better, EDF Energy or Scottish Power?
EDF Energy may suit households focused on lower-priced fixed and variable tariffs and a higher Trustpilot rating. Scottish Power may be a better fit for those prioritising customer service and mobile app ratings.
Do EDF Energy and Scottish Power charge exit fees?
EDF Energy charges a £50 exit fee on its cheapest variable tariff and a £150 exit fee on its cheapest fixed deal. Scottish Power's cheapest variable and fixed tariffs both have a £0 exit fee, meaning you can leave without penalty.
How do customers rate EDF Energy and Scottish Power?
EDF Energy holds a strong 4.8 out of 5 rating on Trustpilot, with 83% of its reviews being five-star. Scottish Power has a lower 4.4 out of 5 rating, and while 60% of its reviews are five-star, 19% are one-star.
Which supplier has the better mobile app?
Scottish Power has higher ratings on both major app stores. Its iOS app scores 4.8 out of 5, and its Google Play app scores 4.7. EDF Energy's apps also score well, with 4.6 on iOS and 4.4 on Google Play.
How quickly do EDF Energy and Scottish Power answer the phone?
Scottish Power is faster, with an average call centre wait time of 1 minute 16 seconds. EDF Energy takes more than twice as long, with an average wait time of 2 minutes 46 seconds.
Should I switch to EDF Energy or Scottish Power?
If price is your main priority, EDF Energy is the better choice as it offers cheaper fixed and variable deals. If you care most about fast phone support and highly rated mobile apps, choose Scottish Power.
Who has the cheaper fixed tariff?
EDF Energy has the cheaper fixed deal. Its Simply Fixed 2Yr Aug28 tariff costs £1,824 a year for a 24-month term. Scottish Power's cheapest fixed option costs £1,990 a year for a 12-month term.
What are their opening hours?
EDF Energy's phone lines are open Monday to Thursday from 8am to 6pm, and Friday from 8am to 4pm. Scottish Power's lines are open on weekdays from 9am to 5pm. Both suppliers are closed on weekends.
What changed this month
This month, Scottish Power's iOS app updates in last 90 days rose from 1 to 3, EDF Energy's iOS app updates in last 90 days rose from 0 to 3, and Scottish Power's iOS sampled negative reviews rose from 0 to 2. There were 30 other data changes this month — see the full changelog below for details.
Data changes this month (36)
EDF Energy
- Trustpilot reviews234,962 → 243,334
- iOS app ratings count182,000 → 185,000
- iOS app days since last update754 → 6
- iOS app updates in last 90 days0 → 3
- Play Store rating4.4540496 → 4.4256063
- Play Store ratings count49,305 → 50,315
- Play Store days since last update20 → 7
- Play Store positive ratings %87.2 → 86.3
- Play Store negative ratings %9.1 → 9.8
- Play Store neutral ratings %3.7 → 3.9
- Play Store net-positive %78.1 → 76.5
- Cheapest fixed tariff£1,692.77 → £1,824.37
- Cheapest tariff£1,692.77 → £1,754.76
- Cheapest tariff exit fee£150 → £50
- Cheapest tariff term24 months → 0 months
Scottish Power
- Trustpilot reviews192,283 → 198,589
- Trustpilot 4-star %13 → 14
- Trustpilot 1-star %20 → 19
- Trustpilot negative reviews replied %90 → 91
- Trustpilot positive reviews %73 → 74
- Trustpilot negative reviews %23 → 22
- Trustpilot net-positive %50 → 52
- iOS app ratings count85,000 → 86,000
- iOS app days since last update34 → 26
- iOS app updates in last 90 days1 → 3
- iOS sampled reviews avg stars6 → 2.33
- iOS sampled negative reviews0 → 2
- Play Store rating4.7245803 → 4.7281113
- Play Store ratings count94,149 → 95,532
- Play Store days since last update30 → 27
- Play Store positive ratings %94.1 → 94.2
- Play Store negative ratings %4.6 → 4.5
- Play Store net-positive %89.5 → 89.7
- Cheapest fixed tariff£1,775.84 → £1,990.1
- Cheapest tariff£1,775.84 → £1,804.74
- 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.