pvlib.forecast.HRRR.cloud_cover_to_ghi_linear¶
-
HRRR.
cloud_cover_to_ghi_linear
(cloud_cover, ghi_clear, offset=35, **kwargs)¶ Convert cloud cover to GHI using a linear relationship.
0% cloud cover returns ghi_clear.
100% cloud cover returns offset*ghi_clear.
- Parameters
cloud_cover (numeric) – Cloud cover in %.
ghi_clear (numeric) – GHI under clear sky conditions.
offset (numeric, default 35) – Determines the minimum GHI.
kwargs – Not used.
- Returns
ghi (numeric) – Estimated GHI.
References
Larson et. al. “Day-ahead forecasting of solar power output from photovoltaic plants in the American Southwest” Renewable Energy 91, 11-20 (2016).