Brandwave

British Gas vs So Energy:Which is more popular?

In September 2026, British Gas had more branded searches than So Energy among energy suppliers in the United Kingdom. British Gas had about 1 million branded searches, while So Energy had 60,500. British Gas made up 27.5% of all energy supplier searches we track, and So Energy accounted for 1.7%. When we asked ChatGPT and Google AI Overviews about energy suppliers, British Gas appeared in two of the five answers and So Energy in none.

Among energy suppliers in the United Kingdom in September 2026

Who do people search for more?

British Gas, about 17 searches for every 1 for So Energy

British Gas 1M searchesSo Energy 60.5K searches

Who does AI mention more?

British Gas, mentioned in 2 of 5 answers, So Energy in 0

British Gas in 2 of 5So Energy in 0 of 5

Who does AI recommend more?

British Gas, the only one of the two named

British Gas first in 2So Energy never named

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Top energy suppliers in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, British Gas was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. So Energy did not appear in any of the five answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Octopus Energy1st
  2. E.ON Next2nd
  3. Outfox Energy3rd
  4. British Gas4th
  5. 100Green5th
  6. EDF6th
  7. ScottishPower7th
  8. OVO8th
  9. Ecotricity9th
  10. +1 more
  11. So Energy–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Octopus Energy5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • E.ON Next5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Outfox Energy4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • British Gas2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • EDF2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • ScottishPower2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • 100Green2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • OVO1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Ecotricity1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • So Energy0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

+1 more

See every answer about energy suppliers

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in United Kingdom on October 22, 2026.

Is British Gas or So Energy more popular in search?

This chart shows how often people search Google for British Gas and So Energy by name. Each line represents a brand's share of searches for all 11 energy suppliers we track, month by month, from searches in United Kingdom.

British Gas and So Energy among energy suppliers in the United Kingdom, by month

Share of searches by month for British Gas, So Energy. The figures are in the table below the chart.

View monthly share of searches table
MonthOctopus EnergyBritish GasE.ON NextOVOEDFSo EnergyOutfox EnergyEcotricityGood EnergyScottishPower100Green
Oct 202530.7%30.7%13.8%11.3%9.2%1.9%1.1%0.56%0.3%0.2%0.11%
Nov 202531.1%31.1%13.2%11.5%9.3%1.9%0.84%0.46%0.31%0.21%0.11%
Dec 202529.8%29.8%14.3%13.4%8.9%1.8%0.8%0.54%0.3%0.2%0.11%
Jan 202630%30%13.6%13.5%9%1.8%0.89%0.55%0.3%0.2%0.13%
Feb 202629.9%29.9%13.6%13.5%9%1.8%1.1%0.66%0.3%0.24%0.11%
Mar 202631.1%31.1%13.7%11.5%8.6%1.9%1%0.57%0.31%0.25%0.11%
Apr 202635%28.7%13.4%10.5%8.6%1.7%0.94%0.52%0.23%0.23%0.1%
May 202630.5%30.5%14.9%11.2%9.1%1.5%1%0.83%0.25%0.2%0.09%
Jun 202630.5%30.5%14.1%11.2%9.2%1.5%1.3%0.68%0.3%0.45%0.16%
Jul 202630.9%30.9%13.9%11.4%9.3%1.5%0.99%0.56%0.25%0.2%0.17%
Aug 202630.7%30.7%13.8%11.3%9.2%1.9%0.99%0.83%0.25%0.2%0.17%
Sep 202633.6%27.5%14.3%10.1%10.1%1.7%1.1%0.91%0.27%0.22%0.15%

How has the British Gas and So Energy comparison changed over the last 12 months?

3 findings

How did search popularity change for United Kingdom energy suppliers in September 2026?

3 changes

  1. In September 2026, Octopus Energy overtook British Gas to become the leader among energy suppliers in the United Kingdom, with 33.6% of the searches.

  2. In September 2026, British Gas lost share of searches among energy suppliers in the United Kingdom, from 30.7% to 27.5%.

  3. Estimated monthly branded searches for So Energy in the United Kingdom fell 18.2% over 12 measured months, from 74K to 60.5K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using British Gas’ and So Energy’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

British Gas

1 branded search term

  • british gas

So Energy

1 branded search term

  • so energy

How the Brand Demand Index is measured

Other head-to-heads among energy suppliers

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