PVsyst is a desktop application long used for photovoltaic yield simulation and a widely recognised reference for detailed performance reports. SolarSimPro addresses a different question: bringing the whole path from drawing the site to issuing the quotation into one place, in the browser. Rather than competing head-on, the two sit at different points of the same workflow.
SolarSimPro runs in the browser; it needs no installation, licence key or dongle. A team can reach the same project from different machines.
It draws the roof outline or fetches the land from its registry parcel reference, then generates the module layout itself, allowing for obstacles and slope.
The bill of materials is derived from the layout and multiplied by unit prices; payback, NPV and IRR come out of the same model.
Setting-out plan DXF, coordinate lists, KMZ and a client-ready report are produced directly.
If your work is detailed performance modelling and a comprehensive simulation report for a lender, the desktop tools specialised in that field are strong and well established in the industry.
If your work is drawing the site, building the layout, producing materials and cost, seeing the feasibility and handing the client a quotation with CAD output — that is, the proposal cycle — SolarSimPro gathers that workflow in one place.
Installation, version drift and licence-key administration disappear. A new team member clicks a link and starts working; there are no updates to distribute.
Because the project lives in the cloud, a roof inspected on site and the calculation done at the office meet in the same file.
Without dropping your current tool, rebuild a completed project on the same assumptions and compare the results.
It depends on the need. If what you want is the proposal cycle — drawing, layout, cost, feasibility, CAD output — in a single workflow, then yes. If you need a detailed simulation report for a lender, the tools specialised in that area are well established; the two can also be used side by side.
No. A current browser is enough; there is no installation, licence key or dongle.
Yes. The setting-out plan exports as DXF, coordinate lists as CSV and the 3D model as KMZ.
There is. Register and request a demo; once approved, your time starts the moment you first open the application.
Rebuild a finished site and put the results side by side. Runs in the browser, no installation.