Can you help me calculate the best angle for solar panels on my roof.
Can you help me calculate the best angle for solar panels on my roof.
user
Sure, I can help with that.  There are basically two rules you can use to make a good decision.
assistant
Okay so how do I optimize the angle of my solar panels with the sun?
user
That's tricky!  Ideally, you would want the sun to be at the top of the bag, but you also want the maximum area of the bag.  We can solve this by making two or three wooden posts at different heights, and measuring the lengths of the shadow cast by each post.  We can then compare the angles.  As it turns out, the best angle is between 28 and 38 degrees.  We could test different angles with our wood, and you can trust us that the numbers we come up with will be consistent.  If the measurements don't line up with the right angle, then you could always just dig a little deeper, until you get the right angle.
assistant
No. I want to find out how to orientate my solar panels on my home's roof.
user