Solar panels will help you save money on energy costs the longer you live at the same house. How? It is by regaining the installation costs through savings on your power bill.
Less power from the grid- Using a solar system will help you save more since you won't be using much electricity from the grid.
Price of electricity- The price of electricity rise up every year, so, using a solar system who can generate its own power that comes from the sun can help you save more.
Stored power- If you are not using your electricity because you are not home, you don't have to worry that it will go waste. Net metering sells the electricity you are not using back into the typical grid-tied PV system and enables your home to generate your own electricity efficiently. Throughout the day, most solar customers generate more electricity than they use; net metering enables them to export that power to the grid and reduce their future electric bills.
Property value- Solar panels can increase the value to your property. Let's say you are going to sell your house, there's a big possibility that buyers would pay a higher price. According to the U.S. Department of Energy, property values increase $20 for every $1 of utility savings per year. With a 5 kW unit installed in your home, you could easily increase the value of your home by at least $20,000.