E.ON Next Scottish Power (July 2026)
Overview
E.ON Next is the better option for most households, offering cheaper tariffs and stronger customer service scores, though Scottish Power has a slight edge for Android app users.
E.ON Next leads this comparison by offering cheaper tariffs and higher customer service scores. Although Scottish Power provides a higher-rated Android app, E.ON Next secures better ratings from Citizens Advice, Which?, and Trustpilot, alongside lower-priced fixed and variable deals.
About E.ON Next and Scottish Power
Who are E.ON Next?
E.ON Next is one of the UK's largest energy suppliers and part of the wider E.ON group. It was set up to replace E.ON and npower in the domestic market. In 2026, E.ON announced a planned takeover of OVO, a deal that would increase its scale. It also won the Overall Customer Satisfaction award in the Big Supplier category at the 2026 Uswitch Energy Awards. On top of this, it was named in the Sunday Times Best Places to Work 2026 list.
Who are Scottish Power?
Scottish Power is one of the UK's largest domestic energy suppliers and is owned by the Spanish energy company Iberdrola. Scottish Power was criticised by Which? for poor customer service in 2024. However, in the 2025 Which? energy supplier rankings, the company placed near the bottom of the table for customer service.
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Tariffs and pricing
E.ON Next currently provides the cheapest overall deal in this comparison. Its Next Fixed 24m v51 tariff locks in rates for 24 months at an estimated £1,733 a year, carrying a £200 total exit fee. In contrast, Scottish Power's lowest-priced option is the Exclusive Help Beat Cancer Fixed Jul 2027 SM4, a 12-month fixed contract estimated at £1,776 a year with no exit fee.
For households seeking a variable rate, E.ON Next remains the cheaper option. The Next Pledge Tracker 12m v12 tariff is estimated at £1,747 a year. Meanwhile, Scottish Power's Standard variable tariff costs an estimated £1,805 a year.
Households preferring a shorter one-year fixed term may consider E.ON Next's Next Fixed 12m v143 tariff, which costs £1,733 a year and includes a £100 total exit fee. Both suppliers are signatories to the Energy Switch Guarantee, meaning any transfer between them should be completed within five working days.
Tariff Options
E.ON Next
E.ON Next offers a range of tariffs to suit different households. This includes standard variable and fixed options, as well as specialist deals for electric vehicle owners, heat pump users, and homes with solar panels.
Scottish Power
Scottish Power provides a straightforward selection of tariffs. Alongside standard variable and fixed options, it offers tracker deals, charity-linked tariffs, and specialist add-ons for electric vehicle drivers and solar panel owners.
Customer reviews
E.ON Next scores higher across independent customer review platforms. It holds a 4.5 Trustpilot rating based on a high volume of feedback, slightly ahead of Scottish Power's 4.4 rating. E.ON Next also has a higher share of five-star reviews, with 74% of its reviews awarding five stars. Conversely, Scottish Power receives 60% five-star reviews alongside a notable 20% one-star reviews.
Qualitative feedback for E.ON Next frequently mentions polite staff and a functional app and website experience, although some users report slow responses and unfulfilled callbacks. Scottish Power customers often highlight patient support when dealing with complex issues, but recurring complaints focus on high prices, billing problems, and mishandled accounts.
In the annual Which? survey, E.ON Next achieves an overall score of 66, placing it ahead of Scottish Power's 56. While both suppliers receive 2 out of 5 for overall customer service, E.ON Next secures higher ratings on specific metrics, scoring 8 out of 15 for complaints handling and 8 out of 10 for smart meters. Scottish Power scores 4 out of 15 and 4 out of 10 in these respective categories.
App quality and features
Both suppliers provide iOS apps that score 4.8 on the App Store. Additionally, both applications have received recent updates and record over 100,000 installs each on Google Play.
Scottish Power holds an advantage among Android users. Its Google Play Store rating sits at 4.7, supported by an 89.5% net-positive score. E.ON Next records lower figures on Android, with a 4.3 rating and a 69.8% net-positive score.
A recent sample of iOS reviews for E.ON Next averages 3 stars; users note the availability of helpful information but report frequent login resets. A sampled Scottish Power review indicates that the app simplifies the management of smart meters and direct debits.
Customer service and support
E.ON Next ranks higher in the Citizens Advice ratings, placing 3rd overall with a score of 3.71 out of 5. Scottish Power occupies 10th place in the same table, scoring 2.94.
Scottish Power reports faster phone answering times, with an average call centre wait of 1 minute 16 seconds. E.ON Next averages 2 minutes 3 seconds. Furthermore, Scottish Power responds to social media messages in an average of 2 minutes 25 seconds, whereas E.ON Next does not currently publish this metric.
Both suppliers demonstrate prompt email responses, with Scottish Power replying to 94.3% within two days and E.ON Next answering 90.7% in the same period. Each supplier maintains formal vulnerability commitments registered with Citizens Advice. E.ON Next operates its customer service lines Monday to Thursday from 9am to 5pm, and Friday from 9am to 4pm, while Scottish Power is available weekdays from 9am to 5pm.
Complaints and performance
E.ON Next gets far fewer complaints than Scottish Power. In the last three months of 2025, E.ON Next had 795 complaints for every 100,000 customers, while Scottish Power had 1,458.
Green Energy Comparison
E.ON Next
E.ON Next supplies a mostly renewable mix, with a small amount of fossil fuels and nuclear power. The supplier also partners with the Woodland Trust, making charity donations when customers sign up for certain specialist tariffs, such as its electric vehicle deals.[1]
Scottish Power
Scottish Power's domestic electricity supply is largely fossil fuels, with some renewable and nuclear energy. Its parent company Iberdrola generates renewable energy, and the supplier offers home energy technology like solar panels and heat pumps to help customers lower their carbon footprint. It also offers a specific green fixed tariff for those wanting a dedicated renewable option.
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 | Either |
| A greener fuel mix | E.ON Next |
E.ON Next is the better option for most households, offering cheaper tariffs and stronger customer service scores, though Scottish Power has a slight edge for Android app users.
E.ON Next may suit households looking for cheaper tariffs and higher customer service scores. It achieves better ratings across Citizens Advice, Which?, and Trustpilot, positioning it as a practical option for those prioritising price and support metrics.
Scottish Power may still suit Android users who prioritise a higher-rated app and faster phone support times.
- Cheaper overall, fixed, and variable tariffs
- Higher scores from Citizens Advice and Which?
- Higher proportion of positive Trustpilot reviews
- Longer average call centre wait times
- Lower-rated Android app on Google Play
- Faster average call answering times
- Higher-rated Android app on Google Play
- No exit fees on its cheapest 12-month fixed deal
- More expensive tariffs in this comparison
- Lower scores from Citizens Advice and Which?
- 20% of Trustpilot reviews are one-star
Frequently asked questions
Which is the better energy supplier, E.ON Next or Scottish Power?
E.ON Next is the better supplier overall. It offers cheaper fixed and variable tariffs, and scores higher across major customer service metrics from Citizens Advice, Which?, and Trustpilot.
Which supplier has the cheapest energy tariff?
E.ON Next currently offers the cheapest deal. Its 24-month fixed tariff costs £1,733 a year, which is cheaper than Scottish Power's lowest-priced 12-month fixed deal at £1,776 a year.
Do customers leave better reviews for E.ON Next or Scottish Power?
Customers leave better reviews for E.ON Next. It holds a 4.5 Trustpilot rating with 74% five-star reviews, whereas Scottish Power has a 4.4 rating and a higher share of one-star reviews at 20%.
Which supplier offers the better mobile app?
Both suppliers have an excellent 4.8 rating on the iOS App Store, but Scottish Power takes the lead on Android with a 4.7 rating on the Google Play Store, compared to E.ON Next's 4.3.
Does E.ON Next or Scottish Power answer the phone faster?
Scottish Power answers the phone faster, with an average call centre wait time of 1 minute 16 seconds. E.ON Next takes slightly longer, averaging 2 minutes 3 seconds.
Should I switch my energy to E.ON Next or Scottish Power?
If you want cheaper prices and better overall customer service, E.ON Next is the stronger choice. However, Scottish Power may appeal if you want a highly rated Android app and faster call answering times.
Do E.ON Next and Scottish Power charge exit fees?
E.ON Next charges a £200 total exit fee on its cheapest 24-month fixed deal and £100 on its cheapest 12-month deal. Scottish Power does not currently charge an exit fee on its cheapest 12-month fixed tariff.
How do E.ON Next and Scottish Power perform with Citizens Advice?
E.ON Next performs much better, ranking 3rd overall with a score of 3.71 out of 5. Scottish Power sits lower in the table in 10th place with a score of 2.94.
How do E.ON Next and Scottish Power score with Which?
E.ON Next scores 66 overall in the annual Which? survey, ahead of Scottish Power's 56. E.ON Next performs notably better on complaints handling and smart meter support.
What changed this month
This month, E.ON Next's cheapest tariff term changed from a variable tariff to a 24-month fixed deal, Scottish Power's iOS app days since last update rose from 0 to 34, and E.ON Next's iOS sampled positive reviews rose from 0 to 1. There were 40 other data changes this month — see the full changelog below for details.
Data changes this month (53)
E.ON Next
- Trustpilot reviews205,883 → 211,533
- iOS app days since last update8 → 9
- iOS sampled reviews avg stars2.33 → 3
- iOS sampled positive reviews0 → 1
- iOS sampled negative reviews2 → 1
- iOS sampled neutral reviews1 → 0
- Play Store rating4.369063 → 4.3445005
- Play Store ratings count15,579 → 15,798
- Play Store days since last update24 → 9
- Play Store positive ratings %84.2 → 83.5
- Play Store negative ratings %13.2 → 13.7
- Play Store neutral ratings %2.6 → 2.8
- Play Store net-positive %71 → 69.8
- Citizens Advice rank5 → 3
- Complaints per 10,000 customers29.4 → 29.8
- Avg call centre wait time116 → 123
- Emails responded within 2 days %90.6 → 90.7
- Cheapest variable tariff£1,584.14 → £1,747
- Cheapest fixed tariff£1,645.75 → £1,733
- Cheapest tariff£1,584.14 → £1,733
- Cheapest tariff exit fee£0 → £200
- Cheapest tariff termvariable → 24 months
- Tariff count7 → 5
- Fixed tariffs available6 → 3
- Variable tariffs available1 → 2
Scottish Power
- Trustpilot rating4.3 → 4.4
- Trustpilot reviews186,114 → 192,283
- Trustpilot negative reviews replied %89 → 90
- iOS app days since last update0 → 34
- iOS app updates in last 90 days3 → 1
- iOS sampled reviews avg stars3.33 → 6
- iOS sampled negative reviews1 → 0
- iOS sampled neutral reviews1 → 0
- Play Store rating4.715794 → 4.7245803
- Play Store ratings count93,031 → 94,149
- Play Store days since last update45 → 30
- Play Store positive ratings %93.9 → 94.1
- Play Store negative ratings %4.8 → 4.6
- Play Store net-positive %89.1 → 89.5
- Citizens Advice rank9 → 10
- Citizens Advice score3.11 → 2.94
- Complaints per 10,000 customers52.4 → 61.8
- Avg call centre wait time80 → 76
- Avg social media response time210 → 145
- Emails responded within 2 days %98.7 → 94.3
- Cheapest variable tariff£1,584.11 → £1,804.74
- Cheapest fixed tariff£1,727.8 → £1,775.84
- Cheapest tariff£1,569.09 → £1,775.84
- Cheapest tariff exit fee£100 → £0
- Cheapest fixed tariff exit fee£100 → £0
- Cheapest fixed tariff term13 months → 12 months
- Tariff count4 → 3
- Longest fixed term13 months → 12 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.