Heliocentrium vs PVsyst
PVsyst is the simulation engine engineers trust, after weeks of learning it. Heliocentrium gives commercial teams the answer in sixty seconds. They solve different problems; here is where each wins.
Search data says it all: what people ask Google about PVsyst is "manual", "training", "report", "model". It is a powerful desktop tool with a steep learning curve, built for engineers producing bankable simulations.
Heliocentrium is built for the other 90% of the funnel: the installer who needs to know today whether a roof is worth a visit, show the client a 3D design, and send a priced proposal. Cloud, AI-driven, zero training.
Feature comparison
| Heliocentrium | PVsyst | |
|---|---|---|
| Runs in the browser | Yes, nothing to install | Desktop (Windows) license |
| Learning curve | Type an address | Steep ("pvsyst training" is a top search) |
| Automated design from address | Yes, AI pipeline | No, manual modelling |
| Proposals, e-sign and CRM | Built-in | No (simulation only) |
| Client-facing 3D visualization | Google Maps photorealistic | Technical 3D scenes |
| Bankable hourly simulation depth | PVGIS-based estimates | Industry-standard, bankable |
| Utility-scale engineering | Rooftop focus today | Yes |
| Batteries / storage modelling | Not yet | Yes |
Where Heliocentrium wins
Time-to-answer
A PVsyst study is measured in hours by a trained engineer. A Heliocentrium feasibility is measured in seconds by anyone on the team.
The commercial layer PVsyst never had
Proposal, e-signature, CRM: PVsyst ends at the simulation report; Heliocentrium ends at the signed deal.
No license seat, no training budget
Browser-based and self-explanatory. Onboard a new salesperson in an afternoon.
Where PVsyst wins
Bankable, hour-by-hour simulation trusted by banks and auditors, utility-scale modelling, batteries, and decades of validation. Many teams use both: Heliocentrium to sell the project, PVsyst to certify the big ones.
Frequently asked questions
Is Heliocentrium a PVsyst replacement?
For selling rooftop projects, yes. For bank-grade simulation of large plants, PVsyst remains the standard, and a good companion.
How accurate are the production estimates?
Energy modelling is built on PVGIS, the European Commission’s irradiance database, the same source many engineers cross-check PVsyst against in Europe.
Get the sixty-second answer
Book a demo and see the feasibility + proposal flow on a real address.