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SOLAR_TILT_MODEL – Underlying solar position and tilt model used to calculate irradiance on the panel

Synopsis

module generators;
class solar {
     enumeration {DEFAULT=1, SOLPOS=1} SOLAR_TILT_MODEL;
}
object solar {
     SOLAR_TILT_MODEL value;
}

Remarks

Currently implemented model types include DEFAULT and SOLPOS. Both models are only used when the panel is in FIXED_AXIS mode.

DEFAULT

The incident solar radiation on a tilted array is calculated using algorithms from Solar Energy Thermal Processes by Duffie and Beckman (1974).

SOLPOS

The incident solar radiation on a tilted array is calculated using algoirthms from the [NREL SOLPOS] page and from "Modeling Daylight Availability and Irradiance Components from Direct and Global Irradiance" in Solar Energy volume 44, number 3 by Perez et al.

See Also