pvlib.bifacial.pvfactors_timeseries¶

pvlib.bifacial.pvfactors_timeseries(solar_azimuth, solar_zenith, surface_azimuth, surface_tilt, timestamps, dni, dhi, gcr, pvrow_height, pvrow_width, albedo, n_pvrows=3, index_observed_pvrow=1, rho_front_pvrow=0.03, rho_back_pvrow=0.05, horizon_band_angle=15.0, run_parallel_calculations=True, n_workers_for_parallel_calcs=None)[source]¶

Calculate front and back surface plane-of-array irradiance on a fixed tilt or single-axis tracker PV array configuration, and using the open-source “pvfactors” package. Please refer to pvfactors online documentation for more details: https://sunpower.github.io/pvfactors/

Returns:

front_poa_irradiance: numeric: Calculated incident irradiance on the front surface of the PV modules (W/m2)
back_poa_irradiance: numeric: Calculated incident irradiance on the back surface of the PV modules (W/m2)
df_registries: pandas DataFrame: DataFrame containing detailed outputs of the simulation; for instance the shapely geometries, the irradiance components incident on all surfaces of the PV array (for all timestamps), etc. In the pvfactors documentation, this is refered to as the “surface registry”.

References

[1]	Anoma, Marc Abou, et al. “View Factor Model and Validation for Bifacial PV and Diffuse Shade on Single-Axis Trackers.” 44th IEEE Photovoltaic Specialist Conference. 2017.