Head-to-head · Solar Software
PVsyst vs Solarius-PV
PVsyst leads on 0 checks, Solarius-PV on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scorePVsyst · 7.3/10
PVsyst scores higher on our rubric for solar software: 7.3 against 6.7 out of 10; our editors rank them #5 and #8.
PVsyst is the better fit for modelers needing detailed PV simulation and analysis. Solarius-PV is the better fit for BIM-oriented teams needing detailed PV design.
- PVsyst fits best
Modelers needing detailed PV simulation and analysis
- Solarius-PV fits best
BIM-oriented teams needing detailed PV design
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Side by side
| Feature | PVsyst 7.3/10 Visit ↗ | Solarius-PV 6.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 7.3 | 6.7 |
| Ranking | #5 in Solar Software | #8 in Solar Software |
| Best for | Modelers needing detailed PV simulation and analysis | BIM-oriented teams needing detailed PV design |
| Pricing model | Paid | Paid |
| Starting price | Not published | Not published |
| Free plan | — | — |
| Free trial | — | — |
| Free trial length | 30 days | 30 days |
| Deployment | Desktop | Desktop |
| Platforms | Windows | Windows |
| Support | Email, Community, Docs | Phone |
| Integrations | 7 integrations | 9 integrations |
| Built for | Small business, Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features PVsyst 2/5 · Solarius-PV 2/5 | ||
| PV design & simulation | ✓ | ✓ |
| Financial modeling | ✓ | ✓ |
| Proposal builder | — | — |
| System monitoring | — | — |
| Permit documentation | — | Not published |
| Specs | ||
| Deployment platform | Desktop | Desktop |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | PVsyst is desktop software for designing, simulating and analyzing photovoltaic systems. It serves solar professionals modeling grid-connected, standalone and pumping projects, from system sizing through annual energy, loss and economic… Read the review → |
Solarius-PV is desktop software for designing and sizing grid-connected photovoltaic systems. ACCA software positions it for engineers, architects, installers and other construction professionals, with workflows for roofs, façades,… Read the review → |
Strengths and trade-offs
PVsyst — where it wins
- Models grid-connected, standalone and pumping PV systems
- Detailed shading, storage, loss and financial analysis
- CLI automation plus multiple meteorological data sources
Where it doesn't
- Windows desktop software limits operating-system flexibility
- Professional license costs 700 CHF per year
- Reports carry watermarks or generic manufacturers on lower tiers
Solarius-PV — where it wins
- Combines 3D/BIM modeling with irradiation and shading analysis
- Automates generator configuration, cable sizing and single-line diagrams
- Includes financial analysis and technical project-document generation
Where it doesn't
- Runs on Windows only
- Costs €599 as a one-time purchase
- Focused on design and documentation, not monitoring portals or proposal building
- PVsyst7.3/10 · From 25 CHF/yr · 30-day trial
Detailed PV simulation, shading, storage and financial analysis for Windows.
Visit PVsystFull verdict → - Solarius-PV6.7/10 · From €599 · 30-day trial
A Windows desktop PV design tool for teams working across BIM, electrical sizing and project economics.
Visit Solarius-PVFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
Last updated · How we research and update




