Skip to main content
Energy Review
Supplier comparison

British Gas vs Ecotricity (August 2026)

Overview

Our verdict
★ Winner: Ecotricity

Ecotricity wins for its better service scores and cheaper fixed deal, but British Gas offers far better apps and a cheaper variable tariff.

Key takeaways

Ecotricity leads this comparison due to higher independent customer service scores and a lower-priced fixed tariff. British Gas, however, may suit households prioritising smartphone app management or those seeking a cheaper variable deal.

Achieves higher customer service scores from Citizens Advice and Which?
Provides a lower-priced fixed tariff in this comparison
Trustpilot
British Gas
4.4
350,018 reviews
Ecotricity
4.2
6,590 reviews
Citizens Advice rank
British Gas
#13
Ecotricity
#7
Cheapest variable
British Gas
£1,745
/year
Ecotricity
£2,032
/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 brands, and one of the biggest domestic suppliers in the country. Owned by Centrica, it offers gas, electricity, and home services such as boiler cover and heating repairs. A key difference for British Gas is its link with Hive, a smart home brand that lets customers control their heating and electric vehicle charging through an app. It also runs PeakSave, a scheme that gives smart meter customers half-price electricity on Sundays to help balance the grid.

Gas and electricity supply
standard and smart tariffs
Home services
boiler cover, plumbing, and heating repairs
Smart home technology
heating and electric vehicle charging control through Hive
Best Overall Improvement2025 Uswitch Energy Awards
Which? Trusted Trader (Boiler installation service)Which?

Who are Ecotricity?

Founded in 1995, Ecotricity is one of the UK's most established green energy suppliers. It operates on a not-for-dividend model, using the money from customers' bills to build new sources of renewable energy rather than paying shareholders. What sets it apart is its strict ethical focus, being the only UK supplier to offer vegan energy with no animal by-products used in its fuel mix.

Gas and electricity supply
100% renewable electricity and green gas mix
Renewable generation
builds wind and solar parks
Best Customer Service Small Supplier2026 Uswitch Energy Awards
Which? Eco Provider2026 Which?
Best BuyEthical Consumer
Ethical BusinessGood Shopping Guide
Affiliate
Thinking about switching to Octopus?

Use our referral link, and we'll both get £50 credit once your switch is complete.

Existing customer? Find out how you can benefit too. T&Cs apply (only one switching offer per household)

Tariffs and pricing

British Gas
TRACKER
Cap Tracker Plus Sep27 v1
£1,745/year
No fixed term · Tracks wholesale rates · Exit fee £50
Best for: customers comfortable with tracked rates
FIXED 24M
Fix and Fall Aug28 v2
£1,834/year
24-month term · Exit fee £150
Best for: price certainty
Ecotricity
VARIABLE
Standard Variable Green Tariff
£2,032/year
No fixed term · Variable rates can change
Best for: maximum flexibility
CHEAPEST
FIXED 24M
EcoFixed - 2 Year August 26 v1
£1,677/year
24-month term · Exit fee £200
Best for: price certainty

Ecotricity provides the lowest-priced overall option in this comparison with its EcoFixed - 2 Year August 26 v1 tariff. Priced at £1,677 a year, this 24-month fixed contract includes a £200 exit fee.

For those looking at British Gas, the lowest-priced option is the Cap Tracker Plus Sep27 v1. This variable tariff costs £1,745 a year and operates without a fixed term, though it does carry a £50 exit fee.

Households preferring a fixed rate from British Gas can opt for the Fix and Fall Aug28 v2, which costs £1,834 a year over a 24-month term and includes a £150 exit fee. Conversely, Ecotricity's standard variable alternative, the Standard Variable Green Tariff, is priced higher at £2,032 a year.

Tariff Options

British Gas tariffs

British Gas offers a range of mainstream domestic tariffs, including standard variable and fixed-term options, alongside several specialist smart tariffs.

Standard Variable
mainstream standard variable tariff where prices change with the wholesale market and the Ofgem price cap
Best forpeople who want flexibility
Fix and Fall Aug28 v2
mainstream fixed-term tariff that protects against price rises for 24 months but will automatically drop its rates if the Ofgem price cap falls
Best forthose who want price protection but still want to save if energy costs go down
Cap Tracker Plus Sep27 v1
mainstream variable tracker tariff where prices change every three months with the Ofgem price cap, giving a guaranteed discount on standing charges
Best forthose who want to track the cap but save on daily charges
EV tariff
specialist time-of-use tariff that gives cheap electricity overnight
Best forelectric vehicle owners who charge their cars at home
Heat Power tariff
specialist time-of-use tariff that gives 70 hours of half-price electricity every week
Best forhomes with heat pumps, electric heating, electric vehicles, or home batteries
Charge Power (Battery tariff)
specialist time-of-use tariff offering cheaper overnight rates
Best forhomes with battery storage
Hive Solar Saver
specialist tariff giving a discount on electricity usage
Best forcustomers who have solar panels or batteries installed by Hive
Smart Export Guarantee (SEG) Tariff
specialist export tariff that pays customers for the renewable electricity they send back to the grid
Best forhomes with solar panels
Smart PAYG / Prepayment
specialist prepayment tariff where customers pay for their energy in advance
Best forhomes with a prepayment meter

Ecotricity tariffs

Ecotricity keeps its domestic tariff range simple, offering standard variable and fixed-term options, as well as specialist smart tariffs.

Standard Variable Green Tariff
mainstream standard variable tariff derogated from the Ofgem price cap to help fund new green energy projects
Best forpeople who want flexibility and want to support the building of new renewable energy sources
EcoFixed - 2 Year August 26 v1
mainstream fixed-term tariff that locks in prices for 24 months
Best forcustomers who want price certainty and protection from market rises
1 Year Fixed EV
specialist time-of-use electric vehicle tariff that fixes prices for one year and gives low-cost electricity overnight
Best forelectric or hybrid vehicle owners who charge overnight
Smart Export Tariff
specialist export tariff that pays customers for the excess renewable energy they send to the grid
Best forhomes that generate their own power
Pay As You Go
specialist prepayment tariff where customers pay for their energy in advance
Best forhomes with a prepayment meter

Customer reviews

Trustpilot
British Gas4.4 / 5
Ecotricity4.2 / 5
Citizens Advice
British Gas#13
Ecotricity#7
Which?
British Gas59 %
Ecotricity66 %

British Gas holds a 4.4 out of 5 Trustpilot rating, drawn from a substantial volume of 350,018 reviews. Ecotricity maintains a 4.2 out of 5 rating based on a smaller sample of 6,590 reviews.

Looking at the rating distribution, 65% of British Gas reviews are five-star and 20% are one-star. Ecotricity's profile is similar, with 66% five-star and 22% one-star ratings. Both suppliers actively engage with critical feedback: British Gas responds to 99% of negative reviews, while Ecotricity replies to 100%, with both typically responding within 24 hours.

Common themes in British Gas reviews include mentions of polite staff, efficient repairs, and prompt communication. Ecotricity customers frequently note helpful service and quick response times, although some reviewers report difficulties with email correspondence and pricing concerns.

In the annual Which? survey, Ecotricity achieves an overall score of 66 out of 100, placing it ahead of British Gas at 59. While both suppliers receive 2 out of 5 for overall customer service, Ecotricity performs better on value for money (3 out of 5) and complaints handling (9 out of 15), compared to British Gas (2 out of 5 and 5 out of 15, respectively). Both firms score low for the switching process, with British Gas receiving 0 and Ecotricity 1 out of 5.

App quality

App Store
British Gas4.5 · 13,000 reviews
Ecotricity1.8 · 110 reviews
Google Play
British Gas4.09 · 13,409 reviews
Ecotricity2.75 · 181 reviews

British Gas receives strong feedback for its mobile applications, scoring 4.5 out of 5 on the App Store across 13,000 ratings and 4.1 on Google Play from 13,409 ratings. The Android version records over 1,000,000 installs.

Ecotricity's applications hold lower scores, averaging 1.8 on the App Store and 2.8 on Google Play. It is worth noting that these figures are based on much smaller sample sizes of 110 and 181 ratings respectively, which limits direct comparability with British Gas.

Despite British Gas's high overall iOS rating, a recent sample of three reviews averages 2 stars, with users noting slow loading times and difficulties navigating between gas and electricity accounts. Meanwhile, recent iOS feedback for Ecotricity suggests the application functions similarly to a website wrapper and lacks certain usability features.

Customer 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
PhoneWeekdays 8am–6pm, open Saturday 9am–2pm, closed SundayWeekdays 9am–7pm, open Saturday and Sunday 9am–5pm
Email24/724/7

According to Citizens Advice data, Ecotricity ranks 7th with an overall score of 3.36 out of 5. British Gas places lower, ranking 13th with a score of 2.61.

Ecotricity records fewer complaints, logging 21.5 per 10,000 customers against 68.7 for British Gas. Call centre wait times are brief for both providers; Ecotricity averages 45 seconds to answer, while British Gas takes 51 seconds. Email responsiveness is also comparable, with both suppliers replying to over 95% of messages within two days.

Both suppliers maintain registered vulnerability commitments with Citizens Advice. Operating hours differ slightly: British Gas support is available weekdays from 8am to 6pm and Saturdays from 9am to 2pm, whereas Ecotricity operates weekdays from 9am to 7pm and weekends from 9am to 5pm.

Complaints and performance

Per 100k customers
British Gas
1,158
Q4 2025
Ecotricity
320
Q4 2025
CA per 10k
British Gas
68.7
Citizens Advice
Ecotricity
21.5
Citizens Advice
Resolved same/next day
British Gas
60%
Ecotricity
34%
Resolved ≤8 weeks
British Gas
91%
Ecotricity
97%

Both suppliers have published their complaints data for the fourth quarter of 2025. Ecotricity gets fewer complaints than British Gas, taking in 320 per 100,000 customers compared to 1,158 for British Gas.

British Gas — complaint themes
Billing
47%
Complaints relating to billing accuracy, timeliness, and team support for billing resolution.
Response
The supplier is working to make sure bills are accurate and sent on time. They are also giving their staff the right tools to help customers sort out problems quickly.
Payments
24%
Complaints relating to payments and refunds.
Response
The supplier is improving how they handle refunds. This means customers will get their money back much faster if they have paid too much.
Customer Service
9%
Complaints relating to service experience and support interactions.
Response
The supplier is spending more money to improve their customer service. They are hiring extra staff to answer calls and help customers directly.
Credit Management
9%
Complaints relating to credit management.
Metering
5%
Complaints relating to smart meters, existing meter faults, and in-home display issues.
Response
The supplier is continuing to fund smart meters and will offer them to anyone who wants one. They are also working to fix any broken meters or in-home displays.
Ecotricity — complaint themes
Customer Service
50%
Feedback about the information provided or the actions taken when customers call, write or email.
Billing & Meter Readings
15%
Challenges to bill amounts, understanding information on bills, and queries relating to tariffs.
Meters (Installation, Exchange, Fault)
5%
Issues relating to meters, such as appointments, loss of supply, meter exchanges, and meter faults.
Credit Management
5%
Complaints relating to overdue bills and payment plans.
Payments
5%
Complaints covering payments, refunds and Direct Debits.

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

British Gas aims to reach net zero by 2045. It helps customers lower their carbon footprint at home by installing electric vehicle chargers and heat pumps, and is working towards a net-zero fleet by 2030. Based on Citizens Advice data from January to March 2026, the British Gas electricity fuel mix is largely nuclear, with some fossil fuel and renewables. It does not currently offer a dedicated green energy tariff as part of its mainstream range.[1]

Ecotricity

Ecotricity supplies 100% renewable electricity, as shown by Citizens Advice data from January to March 2026. It focuses on building its own wind and solar parks rather than just buying certificates. It is the only UK energy company to offer certified vegan energy, meaning no animal by-products are used to make its electricity or gas. Its gas supply is a mix of fossil gas and sustainable green gas, backed by investments in direct carbon removal projects in Britain through its Carbon Bank. It offers a dedicated green tariff called the Standard Variable Green Tariff.[2]

Our verdict

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

Ecotricity wins for its better service scores and cheaper fixed deal, but British Gas offers far better apps and a cheaper variable tariff.

Ecotricity leads this comparison based on the available data, driven by higher independent customer service scores and a lower-priced fixed tariff. British Gas, however, may be more suitable for households prioritising smartphone app functionality or seeking a lower-priced standard variable tariff.

Households looking for the lowest-priced fixed contract or a 100% renewable electricity mix may find Ecotricity to be the more suitable option. Conversely, those who prefer managing their account via a highly rated app or require a lower-priced variable tariff might find British Gas better aligned with their needs.

British Gas
Pros
  • Higher-rated smartphone apps
  • Lower-priced standard variable tariff
  • Large volume of positive Trustpilot reviews
×Cons
  • Lower overall Citizens Advice score
  • Higher-priced fixed tariff in this comparison
EcotricityWinner
Pros
  • Higher scores from Citizens Advice and Which?
  • Lower-priced fixed tariff
  • 100% renewable electricity mix
×Cons
  • Lower-rated smartphone apps
  • Higher-priced standard variable tariff
  • £200 exit fee on its lowest-priced fixed deal

Frequently asked questions

Which supplier is better overall, British Gas or Ecotricity?

Ecotricity is our winner based on the available evidence, as it scores higher for customer service and currently offers a cheaper fixed tariff. However, British Gas is the better choice if you want a well-rated app or a cheaper variable deal.

Which supplier has the cheapest energy tariff?

Ecotricity currently offers the cheapest overall deal with its fixed tariff at £1,677 a year. However, if you are looking for a variable tariff, British Gas is cheaper at £1,745 a year compared to Ecotricity's £2,032 a year.

Do customers prefer British Gas or Ecotricity?

British Gas has a slightly higher Trustpilot score of 4.4 out of 5 from a huge volume of reviews, compared to Ecotricity's 4.2. However, Ecotricity scores higher in the annual Which? survey, particularly for value for money and complaints handling.

Are the British Gas and Ecotricity apps any good?

British Gas offers highly rated apps, scoring 4.5 out of 5 on the App Store and 4.1 on Google Play. Ecotricity's apps are poorly rated in comparison, scoring 1.8 on iOS and 2.8 on Android, though this is based on a very small number of reviews.

Which supplier offers better customer service?

Ecotricity performs better in Citizens Advice data, ranking 7th overall with a score of 3.36 out of 5. British Gas ranks 13th with a score of 2.61. Both suppliers answer calls in under a minute on average.

Should I switch to British Gas or Ecotricity?

If you want the cheapest fixed deal or care about independent service scores, Ecotricity is the better option. If you prefer to manage your account through a reliable smartphone app or want a cheaper variable tariff, British Gas is the stronger choice.

Do British Gas and Ecotricity offer fixed energy deals?

Yes, both suppliers offer fixed tariffs. Ecotricity's cheapest fixed deal costs £1,677 a year for a 24-month term, while British Gas offers a 24-month fixed deal at £1,834 a year.

How do British Gas and Ecotricity perform in the Which? survey?

Ecotricity scores 66 out of 100 in the Which? survey, beating British Gas which scores 59. Both suppliers score 2 out of 5 for overall customer service, but Ecotricity performs slightly better on value for money.

How quickly do British Gas and Ecotricity answer the phone?

Both suppliers are very quick to answer calls. According to Citizens Advice, Ecotricity customers wait an average of 45 seconds, while British Gas customers wait 51 seconds.

Do British Gas and Ecotricity charge exit fees?

Yes, both suppliers charge exit fees on some of their tariffs. Ecotricity's cheapest fixed deal carries a £200 exit fee, while British Gas's cheapest variable tariff has a £50 exit fee.

What changed this month

This month, British Gas's iOS app updates in last 90 days fell from 3 to 0, Ecotricity's iOS app updates in last 90 days fell from 1 to 0, and Ecotricity's iOS sampled positive reviews rose from 0 to 1. There were 36 other data changes this month — see the full changelog below for details.

Data changes this month (50)

Related comparisons

Related reviews

Related guides

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.

Comments

Leave a comment

We publish your name and comment. Your email is never published and is used only if we need to reply. We also store a one-way hashed form of your IP address to detect spam. See our privacy policy.