API field
Snow model
Whether snow on the modules is modelled
What it is
Selects the snow loss model: off, or Townsend's monthly model. The Model tab's Townsend snow step sets it. Townsend needs the monthly snowfall and snow events, and a relative humidity from the weather file or the monthly humidity below.
Typical values and how to get it
Off unless the site gets snow. If not given: off.
References
- Townsend & Powers 2011, Photovoltaics and snow: An update from two winters of measurements in the SIERRA, IEEE 37th Photovoltaic Specialists Conference
API
site.snow_model