Satellite view with an annual sunlight layer, a proposed panel layout and estimated energy production.
Example roof with the annual sunlight layer.

How much sun does your roof get?

Search for an address or select a roof on the map. Where building data is available, you can see its sun exposure and try a solar panel layout.

Explore the example area

You need a Goolzoom account to use My Roof.

See when shadows fall

Change the date and time in the hourly shade layer to see which parts of the roof are in shadow. Use the annual sunlight layer to identify the areas with the most exposure.

Hourly shade layer over a satellite view with month, day and hour controls.
Proposed panels on a roof with a control for changing the panel count and viewing estimated annual production.

Try different numbers of panels

Select a roof and adjust the number of panels. The map shows the proposed layout and the results panel estimates how much energy it could produce each year.

Compare costs with and without panels

Enter your monthly electricity use and bill amount, then adjust the installation cost. Compare estimated costs with and without solar panels over the period you choose.

Estimated savings vary with electricity use, electricity prices and installation costs.

Savings simulation with charts of energy production and electricity costs with and without solar panels.
Example simulation. The figures apply to that configuration.

Check coverage in your area

My Roof uses data from Google’s Solar API. Availability and detail vary by location and building.

View Google’s coverage

Start with a roof you know

Search for the address, select the roof and explore its solar potential.

Open My Roof

You need a Goolzoom account to use My Roof.