How do solar add-on products integrate with the existing electrical system of a multifamily building?

How do solar add-on products integrate with the existing electrical system of a multifamily building?

Solar add-on products are designed to integrate seamlessly with the existing electrical system of multifamily buildings. They are typically connected to an inverter that converts solar energy into usable electricity, which can be utilized within the building or fed back to the grid, depending on the setup.