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Hidden parameters

Many parameters and physical values used in PVsyst's physical models and tools must be predefined. These variables are initialized with reasonable default values as determined by the software developers. However, most can be adjusted by the user according to specific project requirements or assumptions.

This is done through Settings > Edit advanced parameters on the main screen, which opens a list of variables with their current values. Users can modify these values directly. Changes should only be made by expert users, as no validity checks are performed at this stage.

Each value is accompanied by a check box, indicating whether the value was modified, and allowing the retrieving of the original PVsyst default value at any time.

The variables are divided into the following categories:

  • Grid-Connected System Presizing,
  • Stand-alone System Presizing,
  • Pumping System Presizing,
  • Specific Presizing costs (all systems),
  • System design parameters,
  • Detailed Simulation Verification Conditions,
  • PV modules,
  • Regulators and converters,
  • Miscellaneous,

The modified values can either be temporarily validated for the current session, or permanently saved.