Renewables.ninja allows users to run simulations of the hourly power output from wind and solar power plants located anywhere in the world. I envisioned, designed, and am leading the implementation of the software. Continued development of the platform and underlying scientific models is happening in close collaboration with Iain Staffell.
More info: www.renewables.ninja
Calliope is a multi-scale energy systems modeling framework using a modern and open source Python-based toolchain.
More info: www.callio.pe
Introduction to Systems Analysis: Mathematically Modeling Natural Systems is an updated English version of an originally German-language textbook on applying simple mathematical models to environmental problems. The companion website offers some interactive demonstrations.
More info: www.systems-analysis.org