Dear Pythonistas and solar power enthusiasts, The maintainers are happy to announce a new release of pvlib python: software for simulating performance of photovoltaic solar energy systems. *See what's new for v0.9.2:* ** *https://pvlib-python.readthedocs.io/en/stable/whatsnew.html *Releases are available from PyPI and the conda-forge channel:* * https://pypi.org/project/pvlib/ * https://anaconda.org/conda-forge/pvlib * https://anaconda.org/conda-forge/pvlib-python *Note: you can now install from conda-forge using either "pvlib" or "pvlib-python"* *Read the Documentation:* * https://pvlib-python.readthedocs.io/en/stable/index.html *Report issues & contribute:* * https://github.com/pvlib/pvlib-python *Highlights:* * Albedo can be entered as a column in weather DataFrame when running a model chain. This can be used to enter a time series instead of just monthly values. * A new function calc_surface_orientation() returns tracker surface tilt and azimuth when given tracker rotation and axis tilt. * There's a new example in the gallery to calculate backside irradiance using pvfactors. * Dropped support for Python-3.6 and increased required pandas to v0.25.0 * A new build system that conforms to PEP 517 & PEP518 * There were several new contributors. *Thank you for using pvlib python!* -- Mark Mikofski, PhD (2005) *Fiat Lux*