The cost of a solar system varies depending on the size of your home, energy needs, and location. On average, a residential system can cost between $17,000 and $23,000 before incentives, though prices fluctuate based on factors like equipment, batteries, electrical adders (such as a panel upgrade), and region (permitting/engineering requirements).

The amount you save depends on your electricity usage, solar system size, and local utility rates. Most homeowners save anywhere from $25,000 to over $100,000 over 25-30 years​. These savings include reductions in electricity bills and the benefits of incentives like the federal tax credit​ or local rebates.

The payback period typically ranges from 5 to 15 years, depending on the cost of the system, local electricity rates, and available incentives. After the system pays for itself, the electricity you generate is essentially free.