I am happy that you made that good observation; it is a very useful skill.
I am curious about how the solar wall would fit into your system. They definitely fulfill a useful niche.
Russell Olson wrote:
I observed one thing that got me to thinking though:
A thick 100 year old red oak on the north side of the driveway seems to absorb and reflect enough solar heat even in the middle of winter to clear the driveway to the gravel. It also melts several weeks earlier in the spring. Just a little exposed gravel makes the drive much easier, but the tree is near the top of the hill, and if cars get stuck they usually can't make the cleared area.
My main question/concern is can this be done differently or improved upon?
In correlation, Paul Wheaton invented
tefa which has similar concepts as what you would like to do. Except, instead of making a microclimate for food, you want to to make a microclimate for your driveway.
A few ideas: Why not strategically plant more trees? A tree serves more functions than a simple wall, simple being the keyword. You could grow things on/inside the walls. Why not texture the earth some?