We’re changing the way to go solar.

For home owners

Going solar is easy

Our goal is to help anyone, anywhere make an intelligent decision about going solar, and help in finding the best installation company.

Works globally.

Numsolar works at any location, globally. We use physics models to get solar irradiation at any location of the globe.

Design your roof.

At Numsolar, we give our users easy to use tools to design their rooftop solar. Solar installation is defined by the roof area, slope, and orientation of the roof. Not only that, but the project price is also impacted by the roof material, slope, and height above the ground.

Historical weather.

We collect a full year's worth of historical weather data to help you get the most out of your solar panels. Our data helps estimate how much solar energy will reach your panels during cloudy weather, how much snow might be blocking the sun during winter, and how much rain can help wash away dust.

Equipment, services and cost.

Roof area, slope and orientation, as well as roof material, height above the ground all effect the price of the project.

At Numsolar, we aim to make the price shown as close to the final price as possible.

And many more:

Historical electricity prices, shadows, car charging, loan calculator, ROI