Overview and comparison with PV Watts
Sighten‘s production model incorporates key aspects of the industry’s most sophisticated models while maintaining simplicity of user inputs.
Highlights
Simple and non-assumptive user inputs required: module and inverter quantities/models, pitch, azimuth, and shading
Hourly production calculations with granular weather data
Module and inverter-level electrical behavior modeled
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Overview
User inputs | Irradiation | Module output | Array output |
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Sighten vs PVWatts
| Component | Sighten | PVWatts |
|---|---|---|
Weather data | NREL TMY Stations | NREL TMY Stations |
Shading | SAM2 shading model | User input |
Module production | DeSoto 5-parameter | User derate input |
Inverter clipping | Sandia MPPT Tracking | None |
Inverter efficiency | SAM CEC Efficiency | User input |
Full description of Sighten's production calculation
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