Post #1909790

Vertical surfaces are not nearly as effective for the majority of cases in capturing solar radiation. I will say, I’ve seen compelling evidence for vertical bifacial panels. In east-west facing configurations, they generate more power when demand is greater and regular panels produce little power. They also stay cooler, so they operate more efficiently. I think it’s often more cost and space efficient to have more panels installed flat to something than fewer panels installed at the theoretically best angle.