Monitor Production Most solar systems come with a physical solar meter or an app to track solar output. However you monitor your solar system, you'll want to check the kilowatt-hours. If the kilowatt-hours are increasing, your solar system is performing.

To verify a company's credentials, visit the Solar Energy Industry Association and the industry licensing database. Getting at least three bids will show you the real cost of solar panels, help you better understand the process, and teach you the right questions to avoid a scam.