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Head-to-head · Solar Software

PVsyst vs Solarius-PV

  • Updated Sep 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score PVsyst #5 in Solar Software 7.3/10 From 25 CHF/yr · 30-day trial ✓ 2 of 5 features Visit PVsyst
Solarius-PV #8 in Solar Software 6.7/10 From €599 · 30-day trial ✓ 2 of 5 features Visit 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

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

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
  • Models grid-connected, standalone and pumping PV systems
  • Detailed shading, storage, loss and financial analysis
  • CLI automation plus multiple meteorological data sources
  • 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
Cons
  • Windows desktop software limits operating-system flexibility
  • Professional license costs 700 CHF per year
  • Reports carry watermarks or generic manufacturers on lower tiers
  • Runs on Windows only
  • Costs €599 as a one-time purchase
  • Focused on design and documentation, not monitoring portals or proposal building
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 →
  1. PVsystSolar Software 7.3From 25 CHF/yr · 30-day trial
  2. Solarius-PVSolar Software 6.7From €599 · 30-day trial

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 →

More comparisons

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update