Most household rooftop solar installations are grid-tied programs, meaning they remain connected to the utility grid. This link will allow homeowners to: By placing panels over a rooftop, solar panels are optimally exposed to sunlight and deliver more than enough energy to electricity households and structures. "on-grid solar rooftop structure" https://ok-social.com/story6199555/not-known-details-about-solar-cell-sorlar-rooftop