DNA info reports that Brooklyn Grange, the Queens Rooftop farm on Northern Boulevard, is now home to a solar-powered composting system that breaks down food scraps collected from neighborhood residents and restaurants.

The system is the handiwork of the Sanitation Department’s NYC Compost Project Local Organics Recovery Program, hosted by Build It! Green NYC, an Astoria nonprofit that sells salvaged building materials.

“Since the farm is on a rooftop, we chose to take advantage of all the sunlight that’s up there,” said Chris Bivens, a project coordinator for the Compost Project, which encourages residents to compost as a way to cut back on the amount of food waste they discard.