Free book download, passive solar energy
I never noticed this download here before, it looks like a good resource
https://www.builditsolar.com/Projects/SolarHomes/PasSolEnergyBk/PSEbook.htm
The Long Descent of Our Modern Civilization Has Begun. Are You Ready?
I never noticed this download here before, it looks like a good resource
https://www.builditsolar.com/Projects/SolarHomes/PasSolEnergyBk/PSEbook.htm