SunPower has just released the latest version of pvfactors (v1.3.0), a Python package for modeling the incident irradiance on bifacial photovoltaic (PV) using the network radiosity model. Bifacial PV are solar panels that can generate energy from both the front and back surfaces. PyPI: https://pypi.org/project/pvfactors/ GitHub: https://github.com/SunPower/pvfactors/releases Thanks SunPower! -- Mark Mikofski, PhD (2005) *Fiat Lux*