Sighten‘s solar energy system production model incorporates key aspects of the industry’s most sophisticated models while maintaining simplicity of user inputs.
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Sighten offers several modeling improvements over PVWatts. For example, Sighten's model takes into account shade recovery from optimizers and microinverters, unlike PVWatts. Differences in methodology are listed below.
| Component | Sighten | PVWatts |
|---|---|---|
Weather data | NREL TMY Stations | NREL TMY Stations |
Shading | SAM2 shading model | User input |
Module production | DeSoto 5-parameter | User input |
Inverter efficiency | SAM CEC Efficiency | User input |
Sighten production calculation
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