When it comes to flat panels, for every 10 square feet of home, you need approximately 2 square feet of panel. This should only be used as a guideline, as other factors involved in determining the number of panels include the area you live in and how much sun your home is able to soak up.
When installing solar panels, always face your panels towards the equator. For the USA and Canada, that means face them toward the south in order to obtain maximum efficiency.
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