Help CenterPV Calculations
What If simulator - test other scenarios
The What If simulator lets you modify key project parameters and instantly see the impact on sizing and budget, without running a full recalculation. It is available from the analysis page through the What If simulator button.
Simulator results are client-side TypeScript approximations. For official results, run the full recalculation with the Python engine.
For a solar project, you can modify irradiation, panel wattage, battery technology and DoD, autonomy, and system efficiency. For a pump project, you can modify daily volume, TDH, pumping hours, tank size, and pump efficiency.
Sensitivity bars
Each bar shows how much the result changes when that parameter changes. A long bar marks a critical parameter to measure carefully on site.
Percentage deltas
Positive or negative values show the difference from the original project. They help spot scenarios that need more equipment or reduce material.
Real-time energy balance
During solar simulation, SolarDim Pro checks whether PV surplus remains sufficient to recharge batteries. The green or orange banner updates instantly.
Common mistakes
- Using simulator results as a final quote without rerunning the Python engine
- Ignoring long sensitivity bars (critical parameters)
- Changing several parameters at once instead of isolating each effect