E.ON Next Scottish Power (September 2026)
Overview
E.ON Next is the stronger choice overall, offering cheaper tariffs and better customer service scores than Scottish Power.
E.ON Next leads this comparison due to its lower tariff prices, higher customer service scores, and better Trustpilot ratings. Scottish Power provides faster call answer times and higher-rated mobile apps, though its energy plans currently cost more.
About E.ON Next and Scottish Power
Who is E.ON Next?
E.ON Next is the retail brand of the German energy group E.ON in the UK. It was set up to take on domestic customers after E.ON bought npower, making it one of the UK's largest suppliers. In May 2026, E.ON announced a planned deal to buy OVO Energy, which would increase its scale in the UK market. It offers a wide range of tariffs and gives customers discounts on home energy technology like solar panels, electric vehicle chargers, and heat pumps. What sets it apart is its focus on customer support through dedicated account specialists.
Products & services
Awards & recognition
Who is Scottish Power?
Based in Glasgow, Scottish Power is one of the UK's oldest and biggest domestic suppliers. It was formed in 1990 and is now owned by the Spanish energy group Iberdrola. As well as supplying energy to homes, it runs the local electricity network in parts of Scotland, Wales, and England. It offers a range of tariffs and installs home technology like solar panels and batteries. What sets it apart is its long-running partnership with Cancer Research UK, raising money through specific charity tariffs.
Products & services
Awards & recognition
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Tariffs and pricing
E.ON Next provides the lowest price in this comparison. Its Next Fixed 24m Exclusive v11 tariff costs £1,510 a year, requiring a 24-month commitment and a £200 total exit fee. Scottish Power’s most affordable option is its Standard variable tariff at £1,611 a year, which operates without a fixed term or exit fees. Consequently, E.ON Next's cheapest available deal is £101 a year less than Scottish Power's.
Looking at variable plans, E.ON Next's Next Pledge Tracker 12m v12 comes in at £1,560 a year, undercutting Scottish Power's equivalent by £51. For households seeking price certainty, E.ON Next's £1,510 fixed tariff is £320 a year cheaper than Scottish Power's lowest fixed alternative, the 12-month Exclusive Help Beat Cancer Fixed Sep 2027 SM2, priced at £1,830 a year.
| Metric | E.ON Next | Scottish Power |
|---|---|---|
| Cheapest tariff exit fee | £200 | £0 |
| Cheapest fixed tariff exit fee | £200 | £0 |
Tariff Options
E.ON Next tariffs
E.ON Next offers a range of tariffs to suit different household needs. The line-up includes standard variable and fixed-term options, alongside specialist deals for electric vehicle drivers, heat pump users, and homes with solar panels.
Scottish Power tariffs
Scottish Power offers standard variable and fixed tariffs, as well as specialist options for smart meter users and electric vehicle owners. The supplier also features specific charity tariffs that include regular donations.
Customer reviews
Both suppliers receive substantial feedback on Trustpilot, though E.ON Next holds a slight advantage. It scores 4.5 out of 5 across 225,716 reviews, with 75% of users awarding it five stars. Scottish Power achieves a 4.4 out of 5 rating from 203,838 reviews, alongside a 60% five-star share. Additionally, 19% of Scottish Power's reviews are one star, whereas E.ON Next sees a lower one-star proportion of 9%.
Review summaries indicate that E.ON Next customers often highlight helpful staff and a smooth switching process, while noting occasional communication gaps and rising costs. Scottish Power users frequently mention polite engineers and a straightforward online experience, though some report slow complaint resolutions and unexpected charges. Both firms typically address feedback within 24 hours; E.ON Next responds to 99% of negative reviews, and Scottish Power replies to 92%.
The annual Which? survey awards E.ON Next 66 out of 100, placing it ahead of Scottish Power's score of 56. E.ON Next achieves higher marks in specific sub-categories, receiving 8 out of 15 for complaints and 8 out of 10 for smart meters, whereas Scottish Power scores 4 in both areas. Furthermore, E.ON Next earns 9 out of 10 for help for those who need it, compared to 7 for Scottish Power.
Mobile apps
Customer ratings suggest Scottish Power provides the stronger mobile app experience. Its Android version scores 4.7 out of 5 across 96,905 ratings, while the iOS edition achieves 4.8 out of 5 from 87,000 ratings. Both platforms show over a million installs and recent updates. Notably, a recent addition to the Scottish Power app introduced a detailed monthly breakdown, allowing Direct Debit customers to track their energy usage.
By contrast, E.ON Next's Android app holds a score of 4.3 out of 5 based on 16,278 ratings. There is currently no iOS app rating or review data available for E.ON Next in this comparison.
Service and support
Average wait: 2.1 min
Hours: Mon–Thu 9am–5pm, Fri 9am–4pm, closed Saturday, closed Sunday
Average wait: 1.3 min
Hours: Weekdays 9am–5pm, closed Saturday, closed Sunday
Replies: 91% within 2 days
Hours: 24/7
Replies: 94% within 2 days
Hours: 24/7
Average response: ~2 min
Hours: Business hrs
Citizens Advice data places E.ON Next 3rd overall with a score of 3.71 out of 5. Scottish Power ranks 10th, scoring 2.94 out of 5. Both energy providers maintain formal vulnerability commitments registered with the organisation.
For phone support, Scottish Power records a faster average call answer time of 1 minute 16 seconds, compared to 2 minutes 3 seconds for E.ON Next. Scottish Power also averages 2 minutes 25 seconds for social media responses, a metric currently unavailable for E.ON Next. Email response rates are relatively close, with Scottish Power replying to 94.3% of messages within two days and E.ON Next managing 90.7%.
Operating hours for E.ON Next's phone lines run from 9am to 5pm Monday to Thursday, and 9am to 4pm on Fridays. Scottish Power is available on weekdays between 9am and 5pm. Neither supplier offers weekend telephone support.
| Metric | E.ON Next | 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
E.ON Next
According to Citizens Advice data for January to March 2026, E.ON Next supplies a mostly renewable mix, with some fossil fuels and nuclear energy. The supplier has a target to reach net zero emissions by 2050. It also invests in UK solar projects and district heating technology. Customers can choose specific green tariffs, such as Next Gust, which offers 100% renewable electricity backed by UK wind generators. It also partners with the Woodland Trust to support ancient woodlands when customers sign up for a fixed tariff.
Scottish Power
Scottish Power and its parent company Iberdrola invest heavily in UK renewable energy, running many onshore and offshore wind farms. The company has a target to reach net zero emissions. Despite this generation work, Citizens Advice data for January to March 2026 shows that the electricity Scottish Power supplies to its domestic customers is largely fossil fuels, with some renewable and nuclear energy. It does offer a Green Fixed tariff that provides 100% green electricity.
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | E.ON Next |
| Overall customer service | E.ON Next |
| A well-rated mobile app | Scottish Power |
| A greener fuel mix | E.ON Next |
E.ON Next is the stronger choice overall, offering cheaper tariffs and better customer service scores than Scottish Power.
E.ON Next leads across the majority of metrics in this comparison, providing lower tariff prices and higher customer service ratings. It secures 3rd place with Citizens Advice and maintains a larger share of positive Trustpilot feedback.
Scottish Power holds an advantage in specific areas, notably its highly rated mobile applications across Apple and Android devices. It also connects phone calls faster than E.ON Next. Despite these benefits, its energy plans are more expensive in this analysis, and it carries a higher percentage of one-star customer reviews.
Based on the data provided, E.ON Next may suit households prioritising lower annual costs and higher overall service scores. Scottish Power remains an option for those who value app functionality and faster phone support, provided they are willing to pay higher unit rates.
- Lower prices for fixed and variable tariffs
- Higher score and ranking from Citizens Advice
- Stronger Trustpilot rating with a higher five-star share
- £200 total exit fee on its cheapest fixed deal
- Longer average wait times for call centre support
- Higher customer ratings for Android and iOS apps
- Faster average call answer times
- No exit fees on its cheapest standard variable tariff
- Higher costs across fixed and variable tariffs
- Greater proportion of one-star reviews on Trustpilot
Frequently asked questions
Which supplier is better overall, E.ON Next or Scottish Power?
E.ON Next performs better overall in our comparison. It offers cheaper fixed and variable tariffs, scores higher with Citizens Advice, and has a better Trustpilot rating. Scottish Power leads on app ratings and answers phone calls faster, but it is more expensive.
Does E.ON Next or Scottish Power offer cheaper fixed deals?
E.ON Next currently offers the cheaper fixed deal. Its cheapest fixed tariff costs £1,510 a year, which is £320 cheaper than Scottish Power's lowest fixed option.
What do customers say about Scottish Power on Trustpilot?
Scottish Power scores 4.4 out of 5 on Trustpilot. Customers often praise the polite engineers and straightforward online experience, but 19% of reviews give one star, with some customers complaining about confusing billing and slow responses.
Which supplier has the better mobile app?
Scottish Power has the stronger mobile app based on customer feedback. Its Android app scores 4.7 out of 5, and its iOS app scores 4.8 out of 5. E.ON Next's Android app scores 4.3 out of 5, and we currently have no iOS app rating available for it.
How long does it take to get through to E.ON Next and Scottish Power by phone?
Scottish Power answers phone calls faster on average. Its average call centre wait time is 1 minute 16 seconds, compared to 2 minutes 3 seconds for E.ON Next.
Should I switch from Scottish Power to E.ON Next for a cheaper price?
If price is your main priority, E.ON Next is currently cheaper than Scottish Power for both fixed and variable tariffs in this comparison. E.ON Next also scores higher for overall customer service.
Do either E.ON Next or Scottish Power charge exit fees?
Yes. E.ON Next's cheapest fixed tariff carries a £200 total exit fee. Scottish Power's cheapest overall tariff is a variable deal with no fixed term and no exit fees.
What are the opening hours for E.ON Next and Scottish Power?
Scottish Power's phone lines are open on weekdays from 9am to 5pm. E.ON Next is open Monday to Thursday from 9am to 5pm, and Friday from 9am to 4pm. Both suppliers are closed on Saturdays and Sundays.
How do E.ON Next and Scottish Power compare in Which? ratings?
E.ON Next scores higher in the annual Which? survey, achieving 66 out of 100 compared to Scottish Power's 56. E.ON Next also performs better in sub-categories like smart meters and complaint handling.
What changed this month
This month, Scottish Power's iOS sampled positive reviews rose from 1 to 3, Scottish Power's iOS sampled reviews avg stars rose from 2.33 to 6, and E.ON Next's iOS app updates in last 90 days fell from 3 to 0. There were 27 other data changes this month — see the full changelog below for details.
Data changes this month (36)
E.ON Next
- Trustpilot reviews219,212 → 225,716
- Trustpilot 5-star %74 → 75
- Trustpilot 4-star %12 → 11
- iOS app rating4.8 → no longer available
- iOS app ratings count49,000 → no longer available
- iOS app days since last update4 → no longer available
- iOS app updates in last 90 days3 → 0
- iOS sampled reviews avg stars3 → no longer available
- iOS sampled neutral reviews1 → 0
- Play Store rating4.324643 → 4.340909
- Play Store ratings count16,070 → 16,278
- Play Store days since last update5 → 4
- Play Store positive ratings %82.6 → 83.1
- Play Store negative ratings %14.2 → 13.8
- Play Store net-positive %68.4 → 69.3
- Cheapest variable tariff£1,747 → £1,560.38
- Cheapest fixed tariff£1,745.58 → £1,509.55
- Cheapest tariff£1,745.58 → £1,509.55
- Tariff count5 → 6
- Fixed tariffs available3 → 4
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.