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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.


PVwindow: Photovoltaic Window Simulator

Apr 7, 2022, 18:00 PM
PVwindow simulates photovoltaic window properties by allowing the user to build stacks of thin-film materials that compose the window layers. The only needed inputs are the complex refractive indices and thicknesses of the materials. The software will simulate the optical transmission, front reflection, and back reflection of the stack using the transfer matrix method. Properties specific to PV window optics such as visible transmittance and color are also calculated. 
Title : PVwindow: Photovoltaic Window Simulator
Url : https://github.com/NREL/PVwindow
Software Id : 72078
Categories :
  • Buildings
  • Python
  • Software Categories
  • Solar

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Last Updated July 8, 2025