See how much it will cost to install solar panels for your home in the Altadena area
Prices of the best rated solar companies near you
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Reviewbestsolar.com compares the prices of solar providers in the Altadena area after calculating the solar system your home needs.
Enter your address and the cost of your most recent electric bill to start
Our estimator shows how many solar panels your home needs and shows them on your roof
You get an online cost and savings estimate using average prices of local solar companies
Select 1-4 solar companies to view your roof online and send you an exact price by email or text
America’s most accurate solar calculator
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Developed with funding from the DOE
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What you will learn using the Reviewbestsolar.com calculator
How many solar panels are needed to power your home
How many square feet of suitable roof space is required
How many solar panels will fit on your roof and where they will go
How much energy the solar panels on your roof will produce
How much solar panels will save you on your electric bills
Your likely payback period for your home solar system
How much solar panels will cost for your home based on the average solar system cost in your area
Optional - Compare specific offers from up to four pre-screened solar companies in your area
How do solar panels work?
Solar panels are mounted on your roof and wired together in groups called solar arrays. The power they generate flows into a solar inverter where the direct current (DC) electricity is converted into alternating current (AC) electricity that can be used by your home or exported to the electric grid.
Solar panel cost by state
Click on your state for solar panels cost localized to your city or use the solar calculator above to see the live prices from solar providers near you.
Showing results for a 5kW installed system
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Reviewbestsolar.com’s calculations are trusted by top solar organizations in America
What makes Reviewbestsolar.com the most accurate solar calculator for homeowners?
Simply put, our calculation engine can deal with complexities that other online solar calculators can't. Specifically: