EDF Energy Tulo Energy (September 2026)
Overview
There is no single best choice: compare price, service, app and green-energy evidence separately.
About EDF Energy and Tulo Energy
Who is EDF Energy?
Formed in 2002, EDF Energy is the British arm of the French state-owned company Électricité de France. It is one of the UK's largest domestic energy suppliers and a major electricity generator, running several nuclear power stations. What sets it apart is its wide range of tariffs and its focus on low-carbon home technology, selling and installing smart meters, solar panels, batteries, and heat pumps.
Products & services
Awards & recognition
Who is Tulo Energy?
Tulo Energy is a smaller, independent domestic energy supplier based in Worcester. It operates under the trading name Square1 Energy Limited, which was set up in 2017 and started taking on customers in 2019. The business is owned by Tulo Group Holdings Limited. What sets it apart is its focus on simple pricing and human-led customer service, promising not to use automated bots so customers can speak directly to a UK-based support team.
Products & services
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Tariffs and pricing
Under our standard assumptions, both suppliers provide variable tariffs at effectively identical price points. EDF Energy's Standard (Variable) tariff and Tulo Energy's Tulo Vari-One each cost £1,611 a year, and neither option carries an exit fee.
For households seeking price certainty, EDF Energy offers fixed-term options. Its Simply Fixed 2Yr Sep28v4 costs £1,691 a year on a 24-month term and includes a £200 total exit fee. In contrast, Tulo Energy does not currently have priced fixed tariffs in our dataset.
Beyond standard plans, EDF Energy lists specialist tariffs designed for electric vehicle drivers and homes with heat pumps. Tulo Energy maintains a simpler product range and does not currently provide these targeted options.
| Metric | EDF Energy | Tulo Energy |
|---|---|---|
| Cheapest tariff exit fee | £0 | £0 |
Tariff Options
EDF Energy
EDF Energy offers a mix of standard and specialist tariffs. Its range includes standard variable and fixed deals with terms from 12 to 24 months. It also has specialist tariffs for electric vehicle owners, homes with heat pumps, and households that generate their own power.
Tulo Energy
Tulo Energy focuses on a very simple product range. It currently offers a standard variable tariff, but does not offer fixed-term deals, tracker tariffs, electric vehicle tariffs, or green tariffs.
Customer reviews
On Trustpilot, EDF Energy holds a score of 4.8 out of 5 across 251,360 reviews, with 83% of customers awarding it five stars. Tulo Energy achieves a 4.6 out of 5 score from 822 reviews, where 78% of users give a five-star rating.
Reviewers frequently mention EDF Energy's polite staff, noting prompt solutions and clear tariff guidance, though some report difficulties navigating its automated phone systems. Tulo Energy customers often highlight friendly support teams and appreciate that inquiries are handled without automated loops. Feedback also indicates that Tulo Energy's setup processes and billing are generally straightforward.
Data shows EDF Energy replies to 99% of its negative Trustpilot reviews. It also holds a Which? score of 58 out of 100, whereas Tulo Energy is not currently rated by the consumer group. Within this Which? assessment, EDF Energy receives 9 out of 10 for helping those who need it, but scores lower for switching (1 out of 5) and contacting your supplier (3 out of 5).
App quality and ratings
EDF Energy's iOS app scores 4.6 out of 5 from 187,000 ratings, while its Google Play equivalent scores 4.4 out of 5 across 51,073 ratings. Both versions have received very recent updates.
Tulo Energy's mobile apps currently have very few ratings. The iOS version scores 5.0 from 2 ratings, and the Google Play app scores 3.1 from 8 ratings, making the sample sizes too small for a direct comparison. While the iOS app was updated recently, the Google Play version has not seen an update in nearly a year.
Recent feedback for the EDF Energy iOS app suggests that recent updates have improved usability. Nevertheless, a portion of users continue to report occasional issues regarding payment processing and accessing customer service features.
Service and support
Average wait: 2.8 min
Hours: Mon–Thu 8am–6pm, Fri 8am–4pm, closed Saturday, closed Sunday
Replies: 86% within 2 days
Hours: 24/7
In the Citizens Advice ratings, EDF Energy scores 2.9 out of 5, ranking 11th overall. The supplier records an average call centre wait time of 2 minutes 46 seconds and responds to 85.6% of customer emails within two days.
Tulo Energy does not currently feature in the Citizens Advice dataset. As a result, its independent service metrics and average call wait times cannot be directly compared against EDF Energy.
EDF Energy accepts Direct Debit, Cash/Cheque, and Prepayment methods. Its phone lines operate Monday to Thursday from 8am to 6pm, and Friday from 8am to 4pm. Service summary data for Tulo Energy is not currently available.
Complaints and performance
We have complaints data for EDF Energy from the second quarter of 2026. There is no data available for Tulo Energy, so we cannot compare the two suppliers directly.
Green Energy Comparison
EDF Energy
EDF Energy's electricity fuel mix is largely nuclear, with some fossil fuel and renewables. Because it generates a large amount of nuclear power, the supplier backs its specialist electric vehicle and heat pump tariffs with 100% zero-carbon nuclear electricity. It does not use the term "100% renewable" for this standard mix. It is also investing in net zero projects, such as hydrogen production, and helping homes move to low-carbon energy. It does not currently offer dedicated green tariffs in its mainstream range.[1]
Tulo Energy
Tulo Energy has limited green energy credentials and does not currently make any specific green energy claims on its main website. Its fuel mix is mostly made up of natural gas and coal, with only a tiny fraction of its electricity coming from renewable sources. It does not currently offer any green tariffs.
Our verdict
| If you care most about | Choose |
|---|---|
| The lowest annual cost on our assumptions | Either |
There is no single best choice: compare price, service, app and green-energy evidence separately.
Use the decision table to match the available evidence to the factors that matter most to your household.
- Cheapest variable tariff at £1,611 / year
- 4.8 Trustpilot from 251,360 reviews
- iOS app rated 4.6 out of 5
- 86% of emails answered within 2 days
- 11% of Google Play ratings are negative
- Cheapest variable tariff at £1,611 / year
- 4.6 Trustpilot from 822 reviews
- 38% of Google Play ratings are negative
Frequently asked questions
Which is cheaper, EDF Energy or Tulo Energy?
On the stored annual-cost assumptions, EDF Energy is £1,611 and Tulo Energy is £1,611. The difference is within £5 a year, so it is treated as a tie.
Can EDF Energy and Tulo Energy complaint rates be compared directly?
No direct complaint-rate winner is declared because EDF Energy and Tulo Energy do not both have figures for the same stated reporting period.
Which supplier leads on customer service?
The supplied data does not support a like-for-like customer-service winner.
Which supplier has the better app evidence?
The supplied data does not support a like-for-like app winner.
Do tariff eligibility rules matter?
Yes. Specialist, time-of-use, EV, heat-pump and export tariffs can have equipment, meter or account requirements. Check the current supplier terms before applying.
Which supplier has the greener evidence?
The supplied data does not support a like-for-like green-energy winner. This row is based on published fuel-mix percentages.
Which is better overall, EDF Energy or Tulo Energy?
There is no single overall winner in this repaired draft. Price, service, app and green-energy evidence are kept as separate choices in the decision table.
When was this comparison updated?
The structured source payload is for September 2026.
What changed this month
This month, EDF Energy's iOS app days since last update rose from 6 to 13, EDF Energy's play store days since last update rose from 7 to 14, and EDF Energy's cheapest tariff exit fee fell from £50 to £0. There were 19 other data changes this month — see the full changelog below for details.
Data changes this month (24)
EDF Energy
- Trustpilot reviews243,334 → 251,360
- iOS app ratings count185,000 → 187,000
- iOS app days since last update6 → 13
- iOS sampled reviews avg stars2 → 2.33
- Play Store rating4.4256063 → 4.3837585
- Play Store ratings count50,315 → 51,073
- Play Store days since last update7 → 14
- Play Store positive ratings %86.3 → 85.2
- Play Store negative ratings %9.8 → 10.6
- Play Store neutral ratings %3.9 → 4.2
- Play Store net-positive %76.5 → 74.6
- Cheapest variable tariff£1,754.76 → £1,610.88
- Cheapest fixed tariff£1,824.37 → £1,691.28
- Cheapest tariff£1,754.76 → £1,610.88
- Cheapest tariff exit fee£50 → £0
- Cheapest fixed tariff exit fee£150 → £200
- Tariff count4 → 3
- Variable tariffs available2 → 1
Tulo Energy
- Trustpilot reviews814 → 822
- Trustpilot negative reviews replied %0 → no longer available
- iOS app days since last update51 → 30
- Play Store days since last update332 → 362
- Cheapest variable tariff£1,804.78 → £1,610.84
- Cheapest tariff£1,804.78 → £1,610.84
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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.