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Energy Review
Supplier comparison

British Gas vs Tulo Energy (September 2026)

Overview

Our verdict
★ Winner: British Gas

British Gas wins by offering cheaper energy and established apps, though Tulo Energy performs better on Trustpilot.

Key takeaways

British Gas takes the overall win based on the available data, providing cheaper unit rates and a broader selection of smart tariffs. While Tulo Energy achieves higher Trustpilot scores, it currently lacks the independent customer service metrics and established mobile apps available from its larger rival.

•British Gas costs £60 less per year on our compared variable tariffs
•British Gas provides established mobile apps, whereas Tulo Energy's apps currently lack sufficient ratings for comparison
•Tulo Energy does not currently feature in independent service rankings from Citizens Advice or Which?
Trustpilot
British Gas
4.5
353,681 reviews
Tulo Energy
4.6
822 reviews
Citizens Advice rank
British Gas
#13
Tulo Energy
N/A
Cheapest variable
British Gas
£1,551
/year
Tulo Energy
£1,611
/year
iOS app
British Gas
4.5
14,000 ratings
Tulo Energy
5
2 ratings

About British Gas and Tulo Energy

Who is British Gas?

British Gas is owned by Centrica and is one of the UK's oldest and one of the biggest domestic energy suppliers. It supplies gas and electricity to homes across the country. What sets it apart is its wide range of extra home services, allowing customers to manage their energy supply and smart home tech in one place.

Products & services

Gas and electricity supply
standard, fixed, and smart tariffs
HomeCare
boiler installation, servicing, and cover packages
Hive smart home tech
smart thermostats, electric vehicle chargers, and solar technology
Heat pump installations
low-carbon heating solutions

Awards & recognition

✓Best Overall Improvement — 2025 Uswitch Energy Awards
✓Uswitch Flex Accreditation — 2026 Uswitch
✓Which? Trusted Trader (boiler installation) — Which?

Who are Tulo Energy?

Tulo Energy is a smaller, independent supplier based in Worcester. It is the trading name of Square1 Energy Ltd and is owned by Tulo Group Holdings Limited. As a newer entrant to the market, it has a smaller customer base compared to larger suppliers. Its key focus is simple customer service, offering a UK-based support team without the use of automated bots.

Products & services

Gas and electricity supply
simple variable and fixed tariffs
Account management
mobile app and online web portal
Affiliate
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Tariffs and pricing

British Gas
CHEAPEST
TRACKER
Cap Tracker Plus Sep27 v1
£1,551/year
No fixed term · Tracks wholesale rates · Exit fee £50
Best for: customers comfortable with tracked rates
FIXED 21M
Fix and Boiler Bonus v14
£1,649/year
21-month term · Exit fee £200
Best for: price certainty
Tulo Energy
VARIABLE
Tulo Vari-One
£1,611/year
No fixed term · Variable rates can change
Best for: maximum flexibility

British Gas currently provides the lowest-priced tariff in this comparison. Its Cap Tracker Plus Sep27 v1 variable deal is priced at £1,551 a year, making it £60 cheaper annually than Tulo Energy's equivalent standard variable option, the Tulo Vari-One, which costs £1,611. This creates a monthly price difference of £5.

Although British Gas has the cheaper variable rate, this specific tariff includes a £50 total exit fee. Tulo Energy, on the other hand, does not apply an exit fee to its variable deal, allowing households to switch away without financial penalty.

Households preferring to lock in their rates may consider the fixed deal from British Gas. The Fix and Boiler Bonus v14 tariff costs £1,649 a year for a 21-month term, though it carries a £200 exit fee for early departure. Our current pricing data does not include a fixed tariff option for Tulo Energy.

British Gas vs Tulo Energy — Tariffs and pricing
MetricBritish GasTulo Energy
Cheapest tariff£1,550 / year£1,610 / year
Cheapest variable tariff£1,550 / year£1,610 / year
Cheapest tariff exit fee£50£0

Tariff Options

British Gas

British Gas offers a wide range of domestic tariffs. The range includes standard variable and fixed-term deals, as well as specialist smart options for electric vehicle owners, homes with heat pumps, and customers with solar panels or home batteries.

Standard Variable
Variable rates can change
Best forcustomers who want a flexible deal with no exit fees
Cap Tracker Plus Sep27 v1
variable tracker tariff that stays a set amount below the price cap
Best forcustomers who want price cap protection with a guaranteed saving
Fix and Boiler Bonus v14
fixed-term tariff that includes extra perks for boiler cover
Best forcustomers who want price certainty and boiler care
Fixed Exclusive Jun28 v1
standard fixed tariff
Best forhouseholds looking to lock in their energy rates for a set time
Fix and Fall Sep28 v1
fixed tariff that locks in a maximum price but allows rates to drop if wider energy prices fall
Best forthose who want the safety of a fixed deal but still want to save money if the market gets cheaper
EV Power
specialist electric vehicle tariff offering cheaper electricity overnight
Best forelectric car owners who charge at home
Heat pump tariff
smart tariff giving 70 hours of half-price electricity every week
Best forhomes with a heat pump, EV, battery, or electric heating
Charge Power
battery tariff offering cheaper overnight rates to charge a home battery
Best forcustomers who want to power their home during the day using stored energy
Hive Solar Saver
smart tariff offering a discount on electricity
Best forcustomers with Hive solar panels or a battery installed

Tulo Energy

Tulo Energy keeps its domestic energy plans simple. It focuses on a standard variable option and fixed-term deals, and does not currently offer specialist smart tariffs for electric vehicles or home generation.

Tulo Vari-One
standard variable tariff where prices can go up or down based on the wider energy market
Best forcustomers who want a simple, flexible energy plan without being tied into a fixed contract
Fixed tariffs
fixed-term deals to lock in energy rates for a set period
Best forcustomers who want to protect against price rises

Customer reviews

★Trustpilot
British Gas4.5 / 5
Tulo Energy4.6 / 5
⚖Citizens Advice
British Gas#13
Tulo EnergyN/A
✓Which?
British Gas59 %
Tulo EnergyN/A %

Tulo Energy performs better on customer-sentiment metrics, achieving a 4.6 out of 5 Trustpilot rating against 4.5 for British Gas. This gap widens when examining net-positive scores: Tulo Energy reaches 86%, while British Gas sits at 51%. British Gas's average is impacted by a higher proportion of one-star reviews, with 20% of users leaving the lowest rating, compared to just 4% for Tulo Energy.

Feedback for Tulo Energy often points to efficient support staff, with users reporting that issues are resolved promptly without getting stuck in automated systems. Reviewers also indicate that account setup is straightforward and billing is generally reliable.

British Gas users frequently commend the professionalism of the supplier's engineers, highlighting clear communication and punctual arrivals. Conversely, negative reviews tend to cite long waiting times, repetitive communication loops, and challenges in reaching staff who can process account updates.

In the annual Which? survey, British Gas holds a customer satisfaction score of 59%. The supplier receives 0 out of 5 for its switching process, though it manages 3 out of 10 for smart meters. Tulo Energy does not feature in the current Which? dataset.

App quality and features

App Store
British Gas4.5 · 14,000 ratings
Tulo Energy5 · 2 ratings
Google Play
British Gas4.2 · 13,701 ratings
Tulo Energy3.1 · 8 ratings

British Gas provides established mobile apps supported by tens of thousands of user reviews. It achieves 4.5 out of 5 on the App Store across 14,000 ratings, and 4.2 out of 5 on Google Play from 13,701 ratings. The software receives regular updates, including a recent addition that lets prepayment customers check their emergency credit status.

Tulo Energy's mobile applications currently lack enough ratings for a direct comparison. The iOS version holds a 5.0 rating from only 2 reviews, and the Google Play edition scores 3.1 from 8 ratings. This sample size is insufficient to accurately assess the supplier's app experience.

Service and support

Citizens Advice rank
British Gas
#13
Tulo Energy
N/A
Citizens Advice score
British Gas
2.61
out of 5
Tulo Energy
N/A
out of 5
Emails ≤2 days
British Gas
98%
Tulo Energy
N/A
Avg call wait
British Gas
51 sec
Tulo Energy
N/A
ChannelBritish GasTulo Energy
Phone

Average wait: 51 sec

Hours: Weekdays 8am–6pm, open Saturday 9am–2pm, closed Sunday

Not reported
Email

Replies: 98% within 2 days

Hours: 24/7

Not reported
Social media

Average response: ~1 min

Hours: Business hrs

Not reported

In the latest Citizens Advice data, British Gas scores 2.61 out of 5, placing it 13th overall. The supplier records an average call centre wait time of 51 seconds and replies to emails within two days 97.9% of the time. It also maintains formal vulnerability commitments with Citizens Advice and provides weekend contact hours, operating on Saturdays from 9am to 2pm.

Tulo Energy does not currently feature in the published Citizens Advice rankings. Consequently, we cannot compare its call wait times, email response rates, or overall independent service metrics against those of British Gas.

British Gas vs Tulo Energy — Service and support
MetricBritish GasTulo Energy
Average social media response time55 secondsN/A
SourcesChecked 1st September 2026
  1. Citizens Advice (British Gas)

Complaints and performance

Per 100k customers
British Gas
944
Q2 2026
Tulo Energy
N/A
CA per 10k
British Gas
68.7
Citizens Advice
Tulo Energy
N/A
Citizens Advice
Resolved same/next day
British Gas
43%
Tulo Energy
N/A
Resolved ≤8 weeks
British Gas
86%
Tulo Energy
N/A

Complaint figures are shown with each supplier’s reporting period. No winner is declared when periods differ or one figure is missing.

British Gas — complaint themes
Billing
51%
We focus on delivering quality service to our customers, ensuring they are billed accurately and in a timely manner as well as making sure our teams are equipped with the right tools to be able to support and help customers through to a swift resolution when they contact.
Payments
20%
We're improving our refund processes to ensure customers receive their money back more quickly when they've been paying too much.
Credit Management
12%
Reported complaint category for Q2 2026.
Customer Service
8%
We continue to make significant investment into our customer service operation recruiting more front-line agents again this quarter to support our customers. We ask our customers for feedback after our interactions which helps us understand how customers are feeling and respond where necessary. We have achieved a strong Net Promoter score of +34 this quarter which means that 58% of our customers rate us as happy.
Metering
4%
We continue to invest in Smart meters, providing meters to those who want them as well as fixing issues with existing meters or the In-House Display units.
Tulo Energy — complaint themes
No current complaint-reason breakdown is available
SourcesChecked 1st September 2026
  1. Supplier performance page (British Gas)

Green Energy Comparison

British Gas
20%Renewable
✓ January to March 2026
Renewable20%
Nuclear57%
Fossil fuel21%
Other2%
Tulo Energy
Dated fuel mix unavailable

British Gas

Centrica, the parent company of British Gas, aims to reach net zero carbon emissions by 2045. For household customers, the supplier focuses on green technology by installing heat pumps, electric vehicle chargers, and plug-in solar panels to help homes generate their own power. Based on Citizens Advice data from early 2026, the electricity it supplies to customers is largely nuclear, with some fossil fuel and renewables. It does not currently offer a dedicated green tariff for domestic customers.[1]

Tulo Energy

Tulo Energy relies heavily on fossil fuels for its electricity supply. According to the supplier's own fuel mix data, most of the electricity it supplies comes from natural gas and coal, with renewable energy making up less than one per cent of the mix. Because of this, it received a score of zero in recent sustainability assessments. It does not advertise specific green energy targets or offer a dedicated green tariff, but it does run a Smart Export Guarantee scheme for customers who generate their own electricity.[2]

Our verdict

Which should you choose?
If you care most aboutChoose
The lowest annual cost on our assumptionsBritish Gas
A well-rated mobile appTulo Energy
Our verdict
★ Winner: British Gas

British Gas wins by offering cheaper energy and established apps, though Tulo Energy performs better on Trustpilot.

Based on the available data, British Gas may suit a wider range of households. It supplies the cheaper tracker tariff in this comparison and operates proven mobile apps with tens of thousands of ratings. Furthermore, it offers specialist smart tariffs for electric vehicles, heat pumps, and solar panels, which Tulo Energy does not currently provide.

For households prioritising customer sentiment, Tulo Energy achieves a notably higher net-positive score on Trustpilot and a lower percentage of one-star reviews. However, the absence of independent service data from Citizens Advice and Which? makes it difficult to verify its broader market performance. As a result, British Gas secures the overall verdict based on measurable data.

British GasWinner
✓Pros
  • Lower-priced tracker tariff
  • Established mobile apps with high rating volumes
  • Broad selection of smart and specialist tariffs
  • Published independent service data
×Cons
  • Higher proportion of one-star Trustpilot reviews (20%)
  • Applies a £50 total exit fee on its cheapest variable deal
Tulo Energy
✓Pros
  • Higher Trustpilot score and net-positive sentiment
  • No exit fees applied to its standard variable deal
×Cons
  • Lacks independent data from Citizens Advice and Which?
  • App rating samples are currently too small to assess
  • No fixed tariffs available in our current pricing data

Frequently asked questions

Which supplier is better overall?

British Gas wins overall based on the available evidence. It offers a cheaper tracker tariff and has established, highly rated mobile apps. While Tulo Energy has better customer review scores on Trustpilot, it is missing independent service data from Citizens Advice, making it harder to compare directly.

Does British Gas or Tulo Energy offer a cheaper tariff?

British Gas currently offers the cheaper option. Its Cap Tracker Plus Sep27 v1 variable tariff is £60 a year cheaper than Tulo Energy's equivalent variable deal.

What do customers say about Tulo Energy?

Tulo Energy holds a 4.6 out of 5 rating on Trustpilot. Customers frequently praise its friendly and efficient support team, noting that problems are handled quickly and that billing remains reliable.

Do British Gas and Tulo Energy have good mobile apps?

British Gas has well-established apps that score highly on both the App Store and Google Play, with tens of thousands of ratings. Tulo Energy also has apps available, but they currently have too few ratings to judge their overall quality.

How fast does British Gas answer the phone?

According to the latest Citizens Advice data, British Gas has an average call centre wait time of 51 seconds. Tulo Energy does not currently have published wait time data.

Why is Tulo Energy missing from independent service rankings?

Tulo Energy is not currently included in the Citizens Advice or Which? datasets used in this comparison, so there is no like-for-like independent service data to assess.

Do I have to pay an exit fee with Tulo Energy?

Tulo Energy does not charge an exit fee on its variable tariff, meaning you can leave the deal without a penalty. In contrast, British Gas charges a £50 total exit fee on its cheapest variable deal.

Why does British Gas have a lower net-positive review score?

British Gas has a lower net-positive score on Trustpilot because 20% of its reviewers leave a one-star rating, often citing long waiting times and unhelpful communication loops. This brings its overall sentiment down compared to Tulo Energy, which has just 4% one-star reviews.

Can I get a fixed energy deal with Tulo Energy?

While Tulo Energy does offer fixed deals as part of its wider range, there is no fixed tariff listed in our price comparison data for the supplier this month. British Gas does offer a priced fixed deal in our comparison.

Does either supplier offer smart tariffs for electric vehicles?

British Gas offers several specialist smart tariffs, including an EV tariff for cheaper overnight charging, as well as options for heat pumps and solar panels. Tulo Energy does not currently offer specialist smart tariffs for electric vehicles.

What changed this month

This month, British Gas's fixed tariffs available rose from 1 to 3, British Gas's iOS sampled negative reviews rose from 0 to 3, and British Gas's play store days since last update rose from 10 to 18. There were 24 other data changes this month — see the full changelog below for details.

Data changes this month (32)

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Rob Gibbs

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.

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