pvlib python: a python package for modeling solar energy systems

pvlib python is a community-supported open source tool that provides a set of functions and classes for simulating the performance of photovoltaic energy systems.pvlib python aims to provide reference implementations of models relevant to solar energy, including for example algorithms for solar position, clear sky irradiance, irradiance transposition, DC power, and DC-to-AC power conversion.pvlib python is an important component of a growing ecosystem of open source tools for solar energy (William F. Holmgren, Hansen, Stein, & Mikofski, 2018).pvlib python is developed on GitHub by contributors from academia, national laboratories, and private industry.pvlib python is released with a BSD 3-clause license allowing permissive use with attribution.pvlib python is extensively tested for functional and algorithm consistency.Continuous integration services check each pull request on multiple platforms and Python versions.The pvlib python API is thoroughly documented and detailed tutorials are provided for many features.The documentation includes help for installation and guidelines for contributions.The documentation is hosted at readthedocs.orgas of this writing.A Google group and StackOverflow tag provide venues for user discussion and help.