Optimal Solar Panel Tilt Angle

This application calculates how close to optimal a given solar panel tilt angle is. Perfect for evaluating how close to optimal your roof is for solar panels.

Can be used to evaluate the best angle on a yearly basis, today, or right now.

Orient the phone screen parallel to a real or assumed solar panel and instantly find how close to optimal the orientation is.

Your current location, the phone screens orientation, and atmospheric effects are accounted.