The Sandia cell temperature model estimates cell temperature from module temperature, $$T_m$$, plane of array irradiance, $$E_{POA}$$, and a temperature difference parameter, $$\Delta T$$. This difference parameter defines the temperature difference between the module and cell temperature.
The model form is:
$$T_c=T_m +\frac{E_{POA}}{E_0}\Delta T$$,
where $$E_{0}$$ is a reference irradiance (1000 W/$$m^{2}$$).
Content contributed by Sandia National Laboratories