OpenSolar vs PVcase:Which is more popular?
In September 2026, OpenSolar had more branded searches than PVcase among solar design software worldwide. OpenSolar had about 14,800 branded searches, while PVcase had 3,600. OpenSolar made up 21.6% of all solar design software searches we track, and PVcase accounted for 5.2%. When we asked ChatGPT and Google AI Overviews about solar design software, OpenSolar appeared in all five answers and PVcase in two. OpenSolar was mentioned before PVcase in every answer.
Who do people search for more?
OpenSolar, about 4 searches for every 1 for PVcase
Who does AI mention more?
OpenSolar, mentioned in every answer we collected
Who does AI recommend more?
OpenSolar, named ahead of PVcase in every answer
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Top solar design software in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, OpenSolar appeared in all five answers. PVcase was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. OpenSolar was listed before PVcase in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Aurora Solar1st- OpenSolar2nd
PVsyst3rd- HelioScope4th
Pylon5th- PVcase6th
Solargraf7th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- OpenSolar5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Aurora Solar5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- PVsyst4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- HelioScope4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- PVcase2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Pylon2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Solargraf1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
See every answer about solar design software
5 answers
Asked ChatGPT
“Which solar design software should I use?”
Asked ChatGPT
“What are the best solar design software tools?”
Asked ChatGPT
“What's the best solar design software for solar system design?”
Searched Google, AI Overview
“solar design software”
Searched Google, AI Overview
“solar proposal software”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is OpenSolar or PVcase more popular in search?
This chart shows how often people search Google for OpenSolar and PVcase by name. Each line represents a brand's share of searches for all seven solar design software we track, month by month, from English-language searches worldwide.
Share of searches by month for OpenSolar, PVcase. The figures are in the table below the chart.
View monthly share of searches table
| Month | PVsyst | HelioScope | OpenSolar | Aurora Solar | PVcase | Pylon | Solargraf |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 32.9% | 22% | 18% | 18% | 4.4% | 2.4% | 2.3% |
| Nov 2025 | 36.4% | 24.3% | 16.2% | 13.3% | 4.8% | 2.8% | 2.1% |
| Dec 2025 | 36.5% | 24.4% | 16.3% | 13.3% | 4.8% | 2.6% | 2.1% |
| Jan 2026 | 30.9% | 25.2% | 16.8% | 16.8% | 5% | 3% | 2.2% |
| Feb 2026 | 29.7% | 24.2% | 19.8% | 16.2% | 4.8% | 3.2% | 2.1% |
| Mar 2026 | 32.6% | 21.7% | 21.7% | 14.5% | 4.3% | 2.8% | 2.3% |
| Apr 2026 | 31.6% | 21.1% | 21.1% | 17.2% | 4.2% | 2.6% | 2.2% |
| May 2026 | 34.2% | 22.8% | 18.7% | 15.3% | 4.5% | 2.4% | 2% |
| Jun 2026 | 31.2% | 20.8% | 20.8% | 17% | 5.1% | 2.9% | 2.2% |
| Jul 2026 | 31.5% | 21% | 21% | 17.2% | 4.1% | 2.8% | 2.3% |
| Aug 2026 | 32.6% | 21.7% | 21.7% | 14.5% | 4.3% | 2.9% | 2.3% |
| Sep 2026 | 32.3% | 21.6% | 21.6% | 14.4% | 5.2% | 2.6% | 2.3% |
How has the OpenSolar and PVcase comparison changed over the last 12 months?
3 findings
- OpenSolar was ahead of PVcase in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, OpenSolar’s share of searches among solar design software worldwide moved from 18% to 21.6%, and its estimated monthly branded searches held steady at 14.8K.
- Across the 12 months ending September 2026, PVcase’s share of searches among solar design software worldwide moved from 4.4% to 5.2%, and its estimated monthly branded searches held steady at 3.6K.
How did search popularity change for solar design software worldwide in September 2026?
1 change
In September 2026, PVcase gained share of searches among solar design software worldwide, from 4.3% to 5.2%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using OpenSolar’s and PVcase’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.
Other head-to-heads among solar design software
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