solarforecastarbiter.reference_forecasts.forecast.cloud_cover_to_irradiance_ghi_clear

solarforecastarbiter.reference_forecasts.forecast.cloud_cover_to_irradiance_ghi_clear(cloud_cover, ghi_clear, zenith)[source]

Estimates irradiance from cloud cover in the following steps:

  1. Estimate cloudy sky GHI using a function of cloud_cover and ghi_clear: cloud_cover_to_ghi_linear()
  2. Estimate cloudy sky DNI and DHI using the Erbs model.
Parameters:
site : datamodel.Site
cloud_cover : Series

Cloud cover in %.

zenith : Series

Solar zenith
Returns:
ghi : pd.Series, dni