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Energy Review
Supplier comparison

British Gas vs Ecotricity (September 2026)

Overview

Our verdict
★ Winner: British Gas

British Gas wins on price and digital experience, but Ecotricity is a strong choice for customer service and green energy.

Key takeaways

British Gas has the lower-priced variable tariff and higher smartphone app ratings. Ecotricity may suit households prioritising green energy, a stronger Citizens Advice result and a higher overall Which? score.

•British Gas provides a lower-priced variable tariff.
•British Gas holds higher mobile app ratings across iOS and Android.
•Ecotricity scores higher with Citizens Advice and in the overall Which? survey.
Trustpilot
British Gas
4.5
353,681 reviews
Ecotricity
4.2
6,635 reviews
Citizens Advice rank
British Gas
#13
Ecotricity
#7
Cheapest variable
British Gas
£1,551
/year
Ecotricity
£1,813
/year
iOS app
British Gas
4.5
Ecotricity
1.8

About British Gas and Ecotricity

Who is British Gas?

British Gas is one of the UK’s oldest and most recognised energy suppliers. It is a subsidiary of Centrica and operates as Scottish Gas in Scotland. It is one of the biggest domestic suppliers in the UK. It offers a wide range of energy tariffs, as well as home services like boiler cover through its HomeCare products. It also integrates with Hive smart home devices. A key feature is its PeakSave scheme, which gives customers half-price electricity on Sundays to encourage energy use when demand is lower.

Products & services

Energy tariffs
standard, fixed, and specialist options
HomeCare
boiler and home cover services
Hive integration
smart home devices
PeakSave
scheme offering cheaper electricity on Sundays

Awards & recognition

✓Best Overall Improvement — Uswitch Energy Awards 2025

Who is Ecotricity?

Founded in 1995, Ecotricity is an independent company based in Stroud and one of the UK’s oldest green energy suppliers. It operates a not-for-dividend model, meaning it reinvests its money into building new renewable energy generation rather than paying shareholders. It focuses entirely on green energy. It builds and runs its own wind and solar parks across Britain. It is also the only UK supplier to offer vegan-certified energy.

Products & services

Green energy tariffs
100% renewable electricity and carbon-neutral gas
Vegan-certified energy
energy produced without animal by-products
Bills into Mills
model using customer bills to fund new renewable projects

Awards & recognition

✓Which? Eco Provider — Which? 2026
✓Best Customer Service Small Supplier — Uswitch Energy Awards 2026
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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
Ecotricity
VARIABLE
Standard Variable Green Tariff
£1,813/year
No fixed term · Variable rates can change
Best for: maximum flexibility
FIXED 24M
EcoFixed - 2 Year August 26 v4
£1,559/year
24-month term · Exit fee £200
Best for: price certainty

The lowest-priced tariff in this comparison is offered by British Gas. The Cap Tracker Plus Sep27 v1 costs £1,551 a year. This is a variable deal with no fixed term, though it carries a £50 exit fee.

Ecotricity’s lowest-priced option is the EcoFixed - 2 Year August 26 v4, which costs £1,559 a year. This fixed tariff is £8 a year more than the British Gas tracker—a difference of less than £1 a month. It requires a 24-month contract and includes a £200 exit fee.

For households specifically seeking a fixed contract, Ecotricity provides the lower-priced option at £1,559 a year. The most affordable fixed deal from British Gas is the Fix and Boiler Bonus v14, priced at £1,649 a year. This 21-month fixed tariff also carries a £200 exit fee, making Ecotricity £90 a year cheaper for those fixing their rates.

When comparing standard variable rates, British Gas costs notably less. Its variable tariff is priced at £1,551 a year, whereas Ecotricity’s Standard Variable Green Tariff costs £1,813 a year. This creates a difference of £263 a year, equating to roughly £22 a month.

British Gas and Ecotricity: tariff options

British Gas

These are the household tariffs currently available in our comparison data. Prices and availability can vary by region, meter type and payment method.

Cap Tracker Plus Sep27 v1
Exit fee £50
Best forHouseholds wanting a flexible variable tariff
Standard Variable
No exit fee
Best forHouseholds wanting a flexible variable tariff
Fix and Boiler Bonus v14
21-month contract · Exit fee £200
Best forHouseholds comparing fixed-rate deals
Fixed Exclusive Jun28 v1
21-month contract · Exit fee £200
Best forHouseholds comparing fixed-rate deals
Fix and Fall Sep28 v1
24-month contract · Exit fee £200
Best forHouseholds comparing fixed-rate deals

Ecotricity

These are the household tariffs currently available in our comparison data. Prices and availability can vary by region, meter type and payment method.

EcoFixed - 2 Year August 26 v4
24-month contract · Exit fee £200
Best forHouseholds comparing fixed-rate deals
Standard Variable Green Tariff
No exit fee
Best forHouseholds wanting a flexible variable tariff

Customer reviews

★Trustpilot
British Gas4.5 / 5
Ecotricity4.2 / 5
⚖Citizens Advice
British Gas#13
Ecotricity#7
✓Which?
British Gas59 %
Ecotricity66 %

British Gas holds a Trustpilot rating of 4.5 out of 5, drawn from 353,681 reviews. Ecotricity scores 4.2 out of 5 based on 6,635 reviews. For both suppliers, 66% of reviewers award a five-star rating.

Regarding negative feedback, one-star ratings account for 20% of British Gas reviews and 22% of Ecotricity reviews. British Gas responds to 99% of its negative reviews within 24 hours, while Ecotricity replies to 94% within the same timeframe.

Reviewers frequently mention polite, punctual engineers when discussing British Gas, though some report long waiting times and repetitive communication loops with customer service. Ecotricity customers often note helpful staff and an easy switching process. Conversely, some Ecotricity reviews cite a lack of urgency regarding technical problems and express frustration over high prices.

In the annual Which? customer satisfaction survey, Ecotricity achieves an overall score of 66%, compared to 59% for British Gas. Both suppliers perform well in the 'helping those who need it' category, scoring 9 out of 10 and 8 out of 10 respectively. However, both receive low scores for their switching processes.

Smartphone apps

App Store
British Gas4.5 · 14,000 ratings
Ecotricity1.8 · 111 ratings
Google Play
British Gas4.2 · 13,701 ratings
Ecotricity2.8 · 182 ratings

British Gas maintains high ratings across both major mobile platforms. It scores 4.5 out of 5 on the App Store based on 14,000 ratings, and 4.2 out of 5 on the Google Play Store from 13,701 ratings.

Ecotricity’s applications receive lower scores, achieving 1.8 on iOS and 2.8 on Android. These figures are drawn from smaller sample sizes of 111 and 182 ratings respectively, which may provide a less comprehensive view than the British Gas data.

Both suppliers actively update their software on iOS and Android. A recent British Gas update introduced a feature allowing prepayment users to check their emergency credit status directly within the app.

A recent sample of Ecotricity iOS reviews indicates user frustration following an app redesign. Several reviewers report that the update removed access to previous billing history and energy usage data.

Service and support

Citizens Advice rank
British Gas
#13
Ecotricity
#7
Citizens Advice score
British Gas
2.61
out of 5
Ecotricity
3.36
out of 5
Emails ≤2 days
British Gas
98%
Ecotricity
95%
Avg call wait
British Gas
51 sec
Ecotricity
45 sec
ChannelBritish GasEcotricity
Phone

Average wait: 51 sec

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

Average wait: 45 sec

Hours: Weekdays 9am–7pm, open Saturday and Sunday 9am–5pm

Email

Replies: 98% within 2 days

Hours: 24/7

Replies: 95% within 2 days

Hours: 24/7

Social media

Average response: ~1 min

Hours: Business hrs

Not reported

Ecotricity places higher than British Gas in the Citizens Advice ratings, ranking 7th overall with a score of 3.36 out of 5. British Gas ranks 13th, scoring 2.61.

Both suppliers report short average call centre wait times. Ecotricity connects callers in an average of 45 seconds, while British Gas takes 51 seconds. British Gas also responds to social media messages in an average of 55 seconds; Ecotricity does not publish equivalent social media data.

Both companies respond to over 95% of emails within two days. Additionally, both suppliers have formal vulnerability commitments registered with Citizens Advice.

British Gas operates its phone lines on weekdays from 8am to 6pm, and on Saturdays from 9am to 2pm. Ecotricity is open on weekdays from 9am to 7pm, and on weekends from 9am to 5pm. Both suppliers accept payments via Direct Debit, Cash/Cheque, and Prepayment.

British Gas vs Ecotricity — Service and support
MetricBritish GasEcotricity
Average social media response time55 secondsN/A

Complaints and performance

Per 100k customers
British Gas
944
Q2 2026
Ecotricity
291
Q1 2026
CA per 10k
British Gas
68.7
Citizens Advice
Ecotricity
21.5
Citizens Advice
Resolved same/next day
British Gas
43%
Ecotricity
41%
Resolved ≤8 weeks
British Gas
86%
Ecotricity
98%

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.
Ecotricity — complaint themes
Customer Service
34%
Reported complaint category for Q1 2026.
Billing & Meter Readings
23%
Reported complaint category for Q1 2026.
Credit Management
12%
Reported complaint category for Q1 2026.
Meters (Installation, Exchange, Fault)
11%
Reported complaint category for Q1 2026.
Payments
6%
Reported complaint category for Q1 2026.

Green Energy Comparison

British Gas
20%Renewable
✓ January to March 2026
Renewable20%
Nuclear57%
Fossil fuel21%
Other2%
Ecotricity
100%Renewable
✓ January to March 2026
Renewable100%

British Gas

Based on Citizens Advice data, the British Gas electricity mix is largely nuclear, with some fossil fuel and renewables. The supplier does not currently offer a dedicated green tariff or carbon-offset gas for domestic customers. Its parent company Centrica has set net zero targets. British Gas also runs its PeakSave scheme to encourage customers to use electricity when there is more renewable energy on the grid.[1]

Ecotricity

Based on Citizens Advice data, Ecotricity’s electricity mix is 100% renewable. The company generates its own green electricity from its wind and solar parks, and buys from other renewable sources. It also offers carbon-neutral gas, which is a mix of green gas and offset fossil gas. Through its "Bills into Mills" model, it uses customer bills to fund new wind and solar projects. All of its tariffs are green tariffs.[2]

Our verdict

Which should you choose?
If you care most aboutChoose
The lowest annual cost on our assumptionsBritish Gas
Overall customer serviceEcotricity
A well-rated mobile appBritish Gas
A greener fuel mixEcotricity
Our verdict
★ Winner: British Gas

British Gas is better for lower variable rates and app ratings, while Ecotricity leads on customer service and green energy.

British Gas may suit households prioritising digital account management, higher-rated mobile apps and lower variable rates. Ecotricity remains the stronger fit for households prioritising customer service evidence, green energy or a lower-priced fixed tariff.

Ecotricity may suit households seeking a 100% renewable energy supplier with higher independent customer service scores, as it performs better with Citizens Advice and Which? while offering a lower-priced fixed tariff. Conversely, British Gas is likely the better option for those prioritising lower variable rates and higher-rated smartphone applications.

British GasWinner
✓Pros
  • Lower-priced overall and variable tariffs
  • Higher mobile app ratings on iOS and Android
  • Fast social media response times
×Cons
  • Lower Citizens Advice and Which? scores
  • Higher-priced fixed-term tariff
Ecotricity
✓Pros
  • Higher Citizens Advice and Which? scores
  • Lower-priced fixed-term tariff
  • 100% renewable electricity
×Cons
  • Higher-priced variable tariff
  • Lower mobile app ratings
  • £200 exit fee on its lowest-priced deal

Frequently asked questions

Which supplier is better overall, British Gas or Ecotricity?

British Gas wins overall due to its cheaper variable rates and highly rated smartphone apps. However, Ecotricity is a strong alternative if you value its stronger Citizens Advice performance, higher overall Which? score, or a green energy supplier.

Who has the cheaper variable tariff?

British Gas has the cheaper variable tariff. Its Cap Tracker Plus Sep27 v1 costs £1,551 a year, while Ecotricity’s Standard Variable Green Tariff costs £1,813 a year.

Do customers rate Ecotricity or British Gas higher?

British Gas has a slightly higher Trustpilot rating at 4.5 compared to Ecotricity's 4.2. However, Ecotricity scores higher in the annual Which? customer satisfaction survey, achieving 66% compared to British Gas's 59%.

Which supplier has the better mobile app?

British Gas has much better app ratings. It scores 4.5 on the App Store and 4.2 on the Google Play Store from thousands of reviews. Ecotricity’s apps score 1.8 on iOS and 2.8 on Android, though this is based on a much smaller number of ratings.

How fast do they answer the phone?

Both suppliers pick up the phone quickly. Ecotricity has an average call centre wait time of 45 seconds, while British Gas takes 51 seconds on average.

Should I choose British Gas or Ecotricity?

Choose British Gas if you want a cheaper variable tariff and a highly rated app. Choose Ecotricity if you prefer a 100% renewable electricity supplier, stronger Citizens Advice performance and a cheaper fixed deal.

What are the exit fees for their cheapest tariffs?

The cheapest overall tariff from British Gas carries a £50 exit fee. Ecotricity’s cheapest deal is a fixed contract that comes with a £200 exit fee.

Do they offer support for vulnerable customers?

Yes, both British Gas and Ecotricity have formal vulnerability commitments registered with Citizens Advice to help support customers who need extra assistance.

Do either of these suppliers offer green tariffs?

Yes, Ecotricity provides 100% renewable electricity and all of its tariffs are green. British Gas does not currently offer a dedicated green tariff in the priced data we compared.

Are the apps regularly updated?

Yes, both suppliers actively maintain their apps and have released updates recently. British Gas recently added emergency credit tracking for prepayment users, while Ecotricity made styling improvements.

What changed this month

This month, British Gas's fixed tariffs available rose from 1 to 3, Ecotricity's iOS sampled positive reviews fell from 1 to 0, and British Gas's iOS sampled negative reviews rose from 0 to 3. There were 31 other data changes this month — see the full changelog below for details.

Data changes this month (43)

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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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