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The average cost of residential solar panels in the US in 2024 is now $2.90 per watt, making a 7 kW system just $14,210 after the federal tax credit. Our home solar cost calculator estimates your exact price based on electricity usage and local provider rates, including $0-down payment options.
"Free solar panels" typically means a zero-down solar setup where your monthly savings on electricity bills exceed the solar payment, allowing you to earn a profit without any upfront cost. Such offers are valid in states with elevated electricity rates or robust solar incentives. Our estimator can determine if this option works for your particular location.
Yes, it’s possible. However, you’ll need at least an electrical contractor’s license, and in many states, you must also hold a specialized solar license or be a NABCEP-certified installer. Navigating permits and utility approvals can be challenging too, which is why more than 95% of homeowners opt for a professional solar company to handle the entire process.
Solar panels generally require no routine maintenance. You might need to clean them if you’re in an area with little rainfall for extended periods or if they’re mounted on a flat or gently sloped roof. Beyond that, there’s typically no regular upkeep needed.
On average, a home needs a 7 kW solar system, which equates to about 20 panels rated at 350 watts each. However, this can vary significantly depending on your state and electricity usage. Our estimator can calculate the exact number of solar panels needed for your home based on your location and monthly electricity spending.
Solar panels last a minimum of 25 years but many premium brands now offer 30-year warranties.
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