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
Overview
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User inputs
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Irradiation
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Module output
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Array output
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- Location
- Equipment
- Pitch, azimuth, solar access
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- Absorption Cell temps
- Module current- voltage curves
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- Aggregate modules
- Inverter clipping & efficiency
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 |
Sighten Production Calculation
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