People are starting to get hot for solar, thanks to big pushes by Elon Musk to improve the state of renewable energy through efforts to build a better battery and bring panels to more houses by way of Solar City. But there’s a big barrier to entry when considering whether or not to go green. While Americans may want solar, Google has noticed an influx of queries into its search engine of people asking if their homes are right for solar panels.

So, an engineer at Google decided to create an information tool to help make the decision easier, without consulting a number of sources. It’s called Project Sunroof, and it lays out the world’s roofs in terms of solar, mapping out how much sun and shade hit homes on any given day. Developers have used information provided through Google Maps to help calculate angles, weather, and obstructions to help answer consumers’ most basic question: is my home right for solar panels?

The team has already rolled-out the project to three cities: Boston, MA, the San Francisco Bay Area, and Fresno, CA. The map even provides cost estimates based on monthly electric bills and what kinds of savings people could expect over a 20-year period, as well as solar providers in the area. It’s an all-in-one solution.

However, solar panels aren’t the best fit for many people that don’t have a good enough FICO score to take out a loan. Many people also live in apartments and don’t even have the option to buy solar panels. But there’s more than one way to get renewable energy into a home. For these people, they have two options: they can demand renewable energy wherever they go through devices, like the SunPort project, or they can demand it from the market in the form of Renewable Energy Certificates (RECs).

The EPA has released a helpful video explaining the concept: