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CalFinder Guide to Home Solar Panels

Welcome to the CalFinder Guide to Home Solar Panels. Here, you’ll find exactly what you need to know about every major solar panel product, broken down by brand, country of manufacturing, certification, warranty, and energy output.
The only one of its kind, the CalFinder Guide allows you to compare solar panels by manufacturer to get the best deal. Find the panel you want, and then get free estimates for installation in a matter of minutes. We’ll set you up with certified contractors and a solar power system you can depend on. Start spinning your meter backwards today!

What are Solar Panels and How Do They Work?

Photovoltaic (PV) technology generates electricity from sunlight. In a solar-powered home, PV cells are configured together into a series of modules, or solar panels, which absorb fractions of the sun’s energy from their position on your rooftop. The solar panel is connected to a grid-tied inverter in order to power to the home’s electrical grid. Solar water panels are different in that they use the sun’s energy to heat fluid, usually water. In the home, this is done with flat-plate thermal collectors mounted to the roof with attached circulation tubes to heat your water.

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Here is what some folks have said about CalFinder Contractors:

Pleasant, detailed and informative.


I received an immediate response from several contractors. They were very helpful and gave me all of the knowledge necessary to make an educated decision, concerning the cost effectiveness of adding a solar system, in my home. I say, Thank you CalFinder, you saved me a lot of time, with a minimum amount of effort.

Chuck Groves, SOUTH EL MONTE, CA

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