Software

See the table below for our open-source software offerings.

For the most current listing of NREL-developed open-source software, see U.S. Department of Energy Office of Scientific and Technical Information's DOE CODE database.

Commercial Licensing

Explore more than 250 copyrighted software tools available for licensing via the Department of Energy's Lab Partnering Service.

FEDIS: The "Fresnel Equations" for Diffuse radiation on Inclined photovoltaic Surfaces

Jul 11, 2022, 18:00 PM

The Fresnel equations solve for the reflection and transmission of light for precise incident angles, but the transmission of diffuse radiation incident on a planar or domed surface is often needed for real-world applications. To efficiently estimate the solar energy resource for a glass-covered photovoltaic module, we derive an analytical solution of diffuse transmission based on the rigorous integration of an alternate form of the Fresnel equations. The approach leads to a simple yet accurate relative transmittance model that reconciles the solar energy sensed by pyranometers and PV panels.

Title : FEDIS: The "Fresnel Equations" for Diffuse radiation on Inclined photovoltaic Surfaces

Url : https://github.com/NREL/FEDIS

Software Id : 80217

Categories :

Python
Software Categories
Solar