Fox ESS vs Sunsynk:Which is more popular?
In September 2026, Fox ESS had more branded searches than Sunsynk among home battery brands in the United Kingdom. Fox ESS had about 2,900 branded searches, while Sunsynk had 2,400. Fox ESS made up 10.2% of all home battery brand searches we track, and Sunsynk accounted for 8.4%. When we asked ChatGPT and Google AI Overviews about home battery brands, Fox ESS appeared in three of the five answers and Sunsynk in none.
Who do people search for more?
Fox ESS, about 21% more searches than Sunsynk
Who does AI mention more?
Fox ESS, mentioned in 3 of 5 answers, Sunsynk in 0
Who does AI recommend more?
Fox ESS, the only one of the two named
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Top home battery brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Fox ESS was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Sunsynk 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.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Tesla3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers- Fox ESS3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
GivEnergy2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Sigenergy1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Enphase1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
myenergi1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Sunsynk0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
SolarEdge0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Puredrive Energy0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Duracell Energy0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about home battery brands
5 answers
Asked ChatGPT
“What's the best home battery for solar panels in the UK?”
Asked ChatGPT
“Which home battery brand is the most reliable?”
Asked ChatGPT
“Is a home battery worth it in the UK?”
Searched Google, AI Overview
“solar battery”
Searched Google, AI Overview
“home battery”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in United Kingdom on October 27, 2026.
Is Fox ESS or Sunsynk more popular in search?
This chart shows how often people search Google for Fox ESS and Sunsynk by name. Each line represents a brand's share of searches for all ten home battery brands we track, month by month, from searches in United Kingdom.
Share of searches by month for Fox ESS, Sunsynk. The figures are in the table below the chart.
View monthly share of searches table
| Month | Sigenergy | Tesla | GivEnergy | Fox ESS | Sunsynk | SolarEdge | Enphase | Puredrive Energy | myenergi | Duracell Energy |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 19.4% | 19.4% | 35.9% | 5.7% | 10.4% | 3.2% | 1.7% | 2.1% | 1.4% | 0.75% |
| Nov 2025 | 17.8% | 21.9% | 34.5% | 6.5% | 9.7% | 2.9% | 1.9% | 2.4% | 1.3% | 1.1% |
| Dec 2025 | 19.7% | 19.7% | 38% | 5.8% | 8.5% | 2.6% | 1.4% | 2.1% | 1.2% | 0.94% |
| Jan 2026 | 18.8% | 23% | 34.8% | 8.4% | 6.6% | 2.5% | 1.7% | 2.1% | 1.4% | 0.9% |
| Feb 2026 | 21.4% | 21.4% | 33.6% | 7.5% | 7.5% | 2.8% | 1.5% | 1.9% | 1.3% | 1% |
| Mar 2026 | 19.1% | 23.3% | 35.3% | 6.8% | 6.8% | 3.1% | 1.7% | 1.7% | 1.4% | 0.75% |
| Apr 2026 | 13.4% | 13.4% | 60.8% | 3.9% | 3.9% | 1.4% | 0.97% | 0.97% | 0.8% | 0.43% |
| May 2026 | 16.7% | 20.5% | 42.3% | 6.1% | 7.3% | 2.2% | 1.2% | 1.8% | 1.2% | 0.66% |
| Jun 2026 | 21.5% | 21.5% | 32.6% | 7.8% | 7.8% | 2.9% | 1.6% | 1.9% | 1.3% | 1% |
| Jul 2026 | 25.6% | 20.9% | 26% | 9.3% | 9.3% | 2.8% | 1.5% | 2.3% | 1.2% | 1% |
| Aug 2026 | 24.5% | 30.1% | 21.2% | 8.9% | 7.1% | 2.7% | 1.4% | 2.2% | 0.97% | 0.97% |
| Sep 2026 | 28.4% | 23.2% | 21.1% | 10.2% | 8.4% | 3.1% | 1.7% | 1.7% | 1.4% | 0.91% |
How has the Fox ESS and Sunsynk comparison changed over the last 12 months?
3 findings
- The lead changed hands 3 times in the 12 months ending September 2026: Fox ESS took it in January 2026, Sunsynk took it in May 2026, Fox ESS took it in August 2026.
- Across the 12 months ending September 2026, Fox ESS’s share of searches among home battery brands in the United Kingdom moved from 5.7% to 10.2%, and its estimated monthly branded searches moved from 1.6K to 2.9K.
- Across the 12 months ending September 2026, Sunsynk’s share of searches among home battery brands in the United Kingdom moved from 10.4% to 8.4%, and its estimated monthly branded searches moved from 2.9K to 2.4K.
How did search popularity change for United Kingdom home battery brands in September 2026?
2 changes
In September 2026, Sunsynk gained share of searches among home battery brands in the United Kingdom, from 7.1% to 8.4%.
In September 2026, Fox ESS gained share of searches among home battery brands in the United Kingdom, from 8.9% to 10.2%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Fox ESS’s and Sunsynk’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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