ECO Y Frame Ground Screw Foundation Solar Carport System 15-Panel No-Concrete Aluminum PV Parking Canopy ECO Y Frame Ground Screw Foundation Carport The ECO Y Frame Ground Screw Foundation Carport eliminates the need for concrete pouring with a helical ground screw foundation system that achieves full structural capacity within hours of installation. Accommodating 15 photovoltaic panels, this innovative system uses galvanized steel helical piles driven directly into the soil,