Solar Software P3 Reference 2 min read Reviewed June 4, 2026

PVsyst Project File (.PRJ)

The .PRJ file is PVsyst's native project format containing all inputs and simulation results.

Definition

The PVsyst Project File (.PRJ) is the native project file format containing all simulation inputs — system layout, module/inverter files, weather data, loss assumptions — and outputs. Standard documentation included in bankable EYA submissions.

Key Takeaways

  • .PRJ = PVsyst native project file.
  • Contains all simulation inputs and outputs.
  • Standard documentation for bankable EYAs.
  • Required for IE review.
  • Includes .PAN/.OND file references.

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