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Energy Review
Supplier comparison

British Gas vs Ecotricity (September 2026)

Overview

Our verdict
Too close to call

There is no single best choice: compare price, service, app and green-energy evidence separately.

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
Affiliate
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Tariffs and pricing

British Gas
CHEAPEST
VARIABLE
Cap Tracker Plus Sep27 v1
£1,551/year
No fixed term · Variable rates can change · Exit fee £50
Best for: customers who accept a £50 exit fee to leave
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

Annual estimates use the stored consumption assumptions. Check current regional rates, terms and eligibility before switching.

Customer reviews

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

Each review service uses its own method and scale, so the measures below should be read separately.

Smartphone apps

App Store
British Gas4.5 · 14,000 reviews
Ecotricity1.8 · 111 reviews
Google Play
British Gas4.18 · 13,701 reviews
Ecotricity2.82 · 182 reviews

App-store scores are shown by platform. No winner is declared where either ratings sample is missing or too small.

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
Social mediaBusiness hrs

Only like-for-like service measures with data for both suppliers are ranked.

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%

Published fuel-mix figures are shown only where both a source URL and reporting period are present in the stored data.

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
Too close to call

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.

British Gas
Pros
  • Cheapest variable tariff at £1,551 / year
  • 4.5 Trustpilot from 353,681 reviews
  • iOS app rated 4.5 out of 5
  • 98% of emails answered within 2 days
×Cons
  • Cheapest overall tariff carries a £50 exit fee
  • 20% of Trustpilot reviews are 1-star
  • 16% of Google Play ratings are negative
Ecotricity
Pros
  • Cheapest variable tariff at £1,813 / year
  • 4.2 Trustpilot from 6,635 reviews
  • 95% of emails answered within 2 days
×Cons
  • Cheapest overall tariff carries a £200 exit fee
  • 22% of Trustpilot reviews are 1-star
  • 50% of Google Play ratings are negative

Frequently asked questions

Which is cheaper, British Gas or Ecotricity?

On the stored annual-cost assumptions, British Gas is £1,551 and Ecotricity is £1,559. British Gas is lower by about £8 a year.

Can British Gas and Ecotricity complaint rates be compared directly?

No direct complaint-rate winner is declared because British Gas and Ecotricity do not both have figures for the same stated reporting period.

Which supplier leads on customer service?

On the comparable customer-service measure used in the decision table, Ecotricity leads.

Which supplier has the better app evidence?

On the comparable app measure used in the decision table, British Gas leads.

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?

On the comparable green-energy measure used in the decision table, Ecotricity leads. This row is based on published fuel-mix percentages.

Which is better overall, British Gas or Ecotricity?

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, 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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