pvlib.clearsky.simplified_solis¶
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pvlib.clearsky.
simplified_solis
(apparent_elevation, aod700=0.1, precipitable_water=1.0, pressure=101325.0, dni_extra=1364.0)[source]¶ Calculate the clear sky GHI, DNI, and DHI according to the simplified Solis model [R7].
Reference [R7] describes the accuracy of the model as being 15, 20, and 18 W/m^2 for the beam, global, and diffuse components. Reference [R8] provides comparisons with other clear sky models.
Parameters: apparent_elevation: numeric
The apparent elevation of the sun above the horizon (deg).
aod700: numeric
The aerosol optical depth at 700 nm (unitless). Algorithm derived for values between 0 and 0.45.
precipitable_water: numeric
The precipitable water of the atmosphere (cm). Algorithm derived for values between 0.2 and 10 cm. Values less than 0.2 will be assumed to be equal to 0.2.
pressure: numeric
The atmospheric pressure (Pascals). Algorithm derived for altitudes between sea level and 7000 m, or 101325 and 41000 Pascals.
dni_extra: numeric
Extraterrestrial irradiance. The units of
dni_extra
determine the units of the output.Returns: clearsky : DataFrame (if Series input) or OrderedDict of arrays
DataFrame/OrderedDict contains the columns/keys
'dhi', 'dni', 'ghi'
.References
[R7] (1, 2, 3) P. Ineichen, “A broadband simplified version of the Solis clear sky model,” Solar Energy, 82, 758-762 (2008). [R8] (1, 2) P. Ineichen, “Validation of models that estimate the clear sky global and beam solar irradiance,” Solar Energy, 132, 332-344 (2016).