pvlib.modelchain.ModelChain.prepare_inputs

ModelChain.prepare_inputs(times=None, weather=None)[source]

Prepare the solar position, irradiance, and weather inputs to the model.

Parameters:
times : None or DatetimeIndex, default None

Times at which to evaluate the model. Can be None if attribute times is already set.

weather : None or DataFrame, default None

If None, the weather attribute is used. If the weather attribute is also None assumes air temperature is 20 C, wind speed is 0 m/s and irradiation calculated from clear sky data. Column names must be ‘wind_speed’, ‘temp_air’, ‘dni’, ‘ghi’, ‘dhi’. Do not pass incomplete irradiation data. Use method complete_irradiance() instead.

Returns:
self
Assigns attributes: times, solar_position, airmass, total_irrad,
aoi