pvpltools.module_efficiency.pvgis

pvpltools.module_efficiency.pvgis(irradiance, temperature, k1, k2, k3, k4, k5, k6)

Calculate PV module efficiency using the PVGIS model.

The efficiency varies with irradiance and operating temperature and is determined by 6 parameters as described in [1].

Parameters:

• irradiance (non-negative numeric, W/m²) – The effective irradiance incident on the PV module.

• temperature (numeric, °C) – The module operating temperature.

• k1 (float) – Six model parameters usually determined by regression.

• k2 (float) – Six model parameters usually determined by regression.

• k3 (float) – Six model parameters usually determined by regression.

• k4 (float) – Six model parameters usually determined by regression.

• k5 (float) – Six model parameters usually determined by regression.

• k6 (float) – Six model parameters usually determined by regression.

Returns:

eta – The efficiency of the module at the specified irradiance and temperature.

Return type:

numeric

See also

fit_efficiency_model, adr

Notes

A comprehensive comparison of efficiency models is found in [2] and [3].

References

[1]

T. Huld, et al., “A power-rating model for crystalline silicon PV modules,” Solar Energy Materials and Solar Cells, vol. 95, pp. 3359-3369, 2011.

[2]

A. Driesse and J. S. Stein, “From IEC 61853 power measurements to PV system simulations”, Sandia Report No. SAND2020-3877, 2020.

[3]

A. Driesse, M. Theristis and J. S. Stein, “A New Photovoltaic Module Efficiency Model for Energy Prediction and Rating”, forthcoming.

Author: Anton Driesse, PV Performance Labs

Examples using pvpltools.module_efficiency.pvgis

Module efficiency models

Module efficiency models