Solar panels require very little maintenance because they have no moving parts to wear out. Generally, an occasional cleaning to remove dust or debris and a routine annual inspection are all that is needed to ensure they are operating at peak efficiency.

Net metering is a utility billing mechanism that credits solar energy system owners for the electricity they add to the grid. If your system produces more power than you use during the day, the excess is sent back to the utility company, earning you credits to use at night.

Solar panels are designed to be incredibly durable and long-lasting. Most reputable manufacturers offer performance warranties of 25 years, and panels can often continue generating electricity at a high efficiency for 30 to 40 years or more.

Batteries are not strictly necessary if you are connected to the main power grid, as you can draw power from the utility when the sun isn't shining. However, adding a battery allows you to store your excess solar energy for use at night or during power outages.