Oh, children actually play outside on the lawn in your area; that's wonderful. But using an inefficient roof angle isn't free. That loss of output has a cost.

Oh, children actually play outside on the lawn in your area; that's wonderful. But using an inefficient roof angle isn't free. That loss of output has a cost. I would think that in some cases it is a significant cost, so I'm just surprised that ground based mounting is so rarely mentioned.