pvpltools.module_efficiency.heydenreich#
- pvpltools.module_efficiency.heydenreich(irradiance, temperature, a, b, c, gamma_pmp)[source]#
Calculate PV module efficiency using the Heydenreich model.
The efficiency varies with irradiance and operating temperature and is determined by three parameters for irradiance dependency and one for temperature dependency 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.
a (float) – Three model parameters usually determined by regression.
b (float) – Three model parameters usually determined by regression.
c (float) – Three model parameters usually determined by regression.
gamma_pmp (float) – The temperature coefficient of power, which may be taken from the module datasheet or also determined by regression.
- Returns:
eta – The efficiency of the module at the specified irradiance and temperature.
- Return type:
numeric
See also
Notes
A comprehensive comparison of efficiency models is found in [2] and [3].
References
Author: Anton Driesse, PV Performance Labs
