Most homeowners spend between $12,600 and $33,376 to install a complete residential solar system in 2026, with the national average at $19,873 before incentives. . Solar systems are sized in kilowatts (kW) and are typically designed to offset 100% of your average annual electricity usage. household consumes 10,000 kWh of electricity per year and, with average sunshine, would need a 7. Your actual cost depends on your home's energy needs, roof characteristics, location and other factors, all of which we'll break down in. . How much does it cost to install and manage solar panels? According to studies by the U. Department of Energy, the all-in cost of a home solar panel system is between $2. Federal Tax Credit Urgency: With Congress proposing to end the 30% federal tax credit after 2025, homeowners. . 3,372,403 online estimates since 2008! Enter your address and the cost of your most recent electric bill Our estimator shows how many solar panels your home needs We generate an online cost and savings estimate You choose how many solar companies send you an exact price by email or text Click on. .