100Green vs E.ON Next:Which is more popular?
In September 2026, E.ON Next had more branded searches than 100Green among energy suppliers in the United Kingdom. E.ON Next had about 520,000 branded searches, while 100Green had 5,400. E.ON Next made up 14.3% of all energy supplier searches we track, and 100Green accounted for 0.15%. When we asked ChatGPT and Google AI Overviews about energy suppliers, E.ON Next appeared in all five answers and 100Green in two. E.ON Next was mentioned before 100Green in three out of five answers.
Who do people search for more?
E.ON Next, about 96 searches for every 1 for 100Green
Who does AI mention more?
E.ON Next, mentioned in every answer we collected
Who does AI recommend more?
E.ON Next, named ahead of 100Green in 3 of 5 answers
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Top energy suppliers in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, E.ON Next appeared in all five answers. 100Green was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. E.ON Next was listed before 100Green in three out of five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Octopus Energy1st- E.ON Next2nd
Outfox Energy3rd
British Gas4th
100Green5th
EDF6th
ScottishPower7th
OVO8th
Ecotricity9th
Good Energy10th- +1 more
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
- Good Energy1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
See every answer about energy suppliers
5 answers
Asked ChatGPT
“Which energy supplier should I switch to in the UK?”
Asked ChatGPT
“What are the best energy suppliers in the UK?”
Asked ChatGPT
“What's the cheapest good energy supplier in the UK for a family home?”
Searched Google, AI Overview
“energy suppliers”
Searched Google, AI Overview
“best energy supplier”
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 100Green or E.ON Next more popular in search?
This chart shows how often people search Google for 100Green and E.ON Next 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.
Share of searches by month for E.ON Next, 100Green. The figures are in the table below the chart.
View monthly share of searches table
| Month | Octopus Energy | British Gas | E.ON Next | OVO | EDF | So Energy | Outfox Energy | Ecotricity | Good Energy | ScottishPower | 100Green |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 30.7% | 30.7% | 13.8% | 11.3% | 9.2% | 1.9% | 1.1% | 0.56% | 0.3% | 0.2% | 0.11% |
| Nov 2025 | 31.1% | 31.1% | 13.2% | 11.5% | 9.3% | 1.9% | 0.84% | 0.46% | 0.31% | 0.21% | 0.11% |
| Dec 2025 | 29.8% | 29.8% | 14.3% | 13.4% | 8.9% | 1.8% | 0.8% | 0.54% | 0.3% | 0.2% | 0.11% |
| Jan 2026 | 30% | 30% | 13.6% | 13.5% | 9% | 1.8% | 0.89% | 0.55% | 0.3% | 0.2% | 0.13% |
| Feb 2026 | 29.9% | 29.9% | 13.6% | 13.5% | 9% | 1.8% | 1.1% | 0.66% | 0.3% | 0.24% | 0.11% |
| Mar 2026 | 31.1% | 31.1% | 13.7% | 11.5% | 8.6% | 1.9% | 1% | 0.57% | 0.31% | 0.25% | 0.11% |
| Apr 2026 | 35% | 28.7% | 13.4% | 10.5% | 8.6% | 1.7% | 0.94% | 0.52% | 0.23% | 0.23% | 0.1% |
| May 2026 | 30.5% | 30.5% | 14.9% | 11.2% | 9.1% | 1.5% | 1% | 0.83% | 0.25% | 0.2% | 0.09% |
| Jun 2026 | 30.5% | 30.5% | 14.1% | 11.2% | 9.2% | 1.5% | 1.3% | 0.68% | 0.3% | 0.45% | 0.16% |
| Jul 2026 | 30.9% | 30.9% | 13.9% | 11.4% | 9.3% | 1.5% | 0.99% | 0.56% | 0.25% | 0.2% | 0.17% |
| Aug 2026 | 30.7% | 30.7% | 13.8% | 11.3% | 9.2% | 1.9% | 0.99% | 0.83% | 0.25% | 0.2% | 0.17% |
| Sep 2026 | 33.6% | 27.5% | 14.3% | 10.1% | 10.1% | 1.7% | 1.1% | 0.91% | 0.27% | 0.22% | 0.15% |
How has the 100Green and E.ON Next comparison changed over the last 12 months?
3 findings
- E.ON Next was ahead of 100Green in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, 100Green’s share of searches among energy suppliers in the United Kingdom moved from 0.11% to 0.15%, and its estimated monthly branded searches moved from 4.4K to 5.4K.
- Across the 12 months ending September 2026, E.ON Next’s share of searches among energy suppliers in the United Kingdom moved from 13.8% to 14.3%, and its estimated monthly branded searches moved from 548K to 520K.
How did search popularity change for United Kingdom energy suppliers in September 2026?
1 change
Estimated monthly branded searches for 100Green in the United Kingdom rose 22.7% over 12 measured months, from 4.4K to 5.4K in September 2026.
How are branded searches counted?
4 search terms
Brandwave collects information about searches that people make online using 100Green’s and E.ON Next’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.
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