Solar panel systems have become one of the fastest-growing sources of energy in the United States. According to the Solar Energy Industries Association, the solar market is expected to double in size by 2023, becoming a 4.5 billion market by that time.

The typical solar energy: system includes solar panels, an inverter, equipment to mount the panels on your roof, and a performance monitoring system that tracks electricity production. The solar panels collect energy from the sun and turn it into electricity, which is passed through the inverter and converted into a form that you can use to power your home.

Batteries are able to be added to on-grid systems at a later stage if required. The Tesla Powerwall 2 is a popular AC battery system which can be added to an existing solar system.