Modify slope on lean-to for solar cells

[Phil the shed man]

I plan to build a 12'x16' shed with a 4' deep porch. I want a lean-to style roof, to mount our solar panels.

The 12'x16' is to meet local code of 200 sq.ft. maximum size shed, without requiring a permit. The 4' porch gives me a 20' long roof, to mount (12) 39"x66" solar panels. The roof pitch needs to be 30 degrees to 33 degrees, for best year-round solar panel efficiency.

Do you have anything like this, or should I just order the Deluxe Gable Roof plans, and modify accordingly?

 

[Phil the shed man]

You pose an interesting question. The lean to will give you the roof surface area you are looking for but the lean-to plans can't easily be modified for this much slope. Plus, the tall wall would be very tall. The tall wall is about 18 inches taller in the existing plans. A 30 degree slope would mean the tall wall would be about 72 inches (6ft) taller than the short wall. That would look a little strange and might even be too tall for building codes. As the slope increases the surface area of the roof increases so it might not be too much of a change.

If you use the deluxe gable plans you will only have slightly over half of the surface area to attach the solar panels to. But you could increase the overhang and actually make a little porch to increase the surface area. That might work.

 

[newbury-cox.net]

I need to build similar but bigger. Similar slope. Rural county, no permits needed.
Up until 2021 I had a 40x20 (deep) Versatube carport. It collapsed due to back to back heavy ice and snow storm. I now have a 40x20 parking area.
I realize that a 20' deep would mean about a 6' rise but I could easily get away with a "back" wall of 6' high and a front wall of 12'.
Perhaps you need to design a "solar carport" shed.