Looks like a good alternative to our subjective zones [Asc19 Methodology of Köppen-Geiger-Photovoltaic climate classification and implications to worldwide mapping of PV system performance.pdf](https://github.com/SolarArbiter/solarforecastarbiter-api/files/5726235/Asc19.Methodology.of.Koppen-Geiger-Photovoltaic.climate.classification.and.implications.to.worldwide.mapping.of.PV.system.performance.pdf) https://doi.org/10.1016/j.solener.2019.08.072
