Sighten‘s production model incorporates key aspects of the industry’s most sophisticated models while maintaining simplicity of user inputs.
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Simple Inputs: Simple and non-assumptive user inputs required - module and inverter quantities/models, pitch, azimuth, and shading
Hourly production profile: Hourly production calculations with granular weather data
Equipment-specific calculations: Module and inverter-level electrical behavior modeled based on the equipment used
Sighten vs PVWatts
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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