An Underground, Walipini-Style, Greenhouse--for the Suburbs!

There is no way I am getting a walipini approved by our building department, but this was the next best thing--a partially buried, lean-to greenhouse design. I walk through the step-by-step process of how I used sun angles to place my thermal mass and shading for maximum benefit. The site I use for sun angles is: https://www.suncalc.org/ Enter your zip code, your target date, and time of day in the top left box and then look for 'Altitude' listed, below (the angle above the horizon).