API field
Installed NOCT
The installed nominal operating cell temperature of the published Fuentes model
Unit °C
What it is
The installed nominal operating cell temperature that Fuentes's model takes: the temperature the installed array reaches at 800 W/m², 20 °C air and 1 m/s wind. It sets the share of the heat lost by convection, the ground temperature and the heat capacity. Used only by the published Fuentes model. If not given: 45 °C, or 49 °C on rooftop racking.
Typical values and how to get it
45 °C for an open rack, about 49 °C for modules close to a roof.
References
- Fuentes 1987, A Simplified Thermal Model for Flat-Plate Photovoltaic Arrays, Sandia report SAND85-0330
API
thermal.noct_installed_c