The small angle guide is useful to help find the best angle to maximize the solar output of your panels, especially if it is adjustable or small. For $10, it is well worth it.
Errr won't you have to readjust every 1 hour anyway?
They are adjusting the angle to the south, not east-west. The angle will be different for maximum energy production at different times of the year. You can adjust to maximize summer production, winter production, or year round production. This device will only help you determine the correct angle for the season you are in.
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They are adjusting the angle to the south, not east-west. The angle will be different for maximum energy production at different times of the year. You can adjust to maximize summer production, winter production, or year round production. This device will only help you determine the correct angle for the season you are in.
If you're using an iPhone use the built in measure app. There is an angle portion.
Google solar angle zip code. It'll tell you the ideal angle. Then just place the side of the phone right on the panel and you'll get the angle.