In the US, there are
1.8 million
solar homes.

Solar isn’t just for nerds. Especially with federal and local incentives, solar can be a great financial investment for anyone. And yes, it’s also a good thing for the planet. Use our calculator to get an unbiased cost analysis in seconds. No signup necessary.

Illustration of a home photovoltaic system

What does it cost?

Our calculator factors in federal, state and local incentives, and site-specific factors such as climate and building orientation.

You'll get a ballpark estimate of upfront costs, and how long it will take your system to pay for itself.

No signup or personal information required.

Enter your zip code to start the calculator.
(Your location gives us climate data.)
Zip code not found.

Things to read

If you’re wondering whether a solar photovoltiac system is right for you, but you’re not sure where to start, or even what questions to ask, you've come to the right place.

Solar 101

A quick intro to the parts that make up a solar photovoltaic system, and how it all works.

How to pay for solar

A guide to the different payment and financing options available.

Federal solar tax credit

The federal Solar Investment Tax Credit is an important incentive for solar homeowners that cuts 30% off the price. We explain in simple terms how it works.

Research incentives

In addition to the federal ITC credit, there are numerous state and local solar incentives around the country. We list them here by state.

Ask the Solar Nerd community

Check out the map page and see how many of your neighbors have already joined the solar revolution. If you have questions, see if there's a Solar Nerd community member near you, and ask them questions.