Fast-Rack GMX Ground Mount for 8 x LONGi 505w Bifacial Solar Panels

The Fast Rack GMX Ground Mount for 8 x LONGi 505W Bifacial Solar Panels is a compact ground mounting solution for smaller residential and off grid projects. Sized to hold eight LONGi 505W bifacial modules, this layout provides up to 4.04 kW of DC capacity in a single array that fits well on smaller sites, acreages and cabin properties.

Built around the Fast Rack GMX leg and rail system, the structure uses galvanized and aluminum components that are engineered for Canadian snow and wind loads. With a total width of about 15 ft 5 in and only four ground penetrations, it offers a stable footprint while keeping installation work manageable. The ground mount format keeps the array accessible for cleaning and maintenance without needing roof access.

This 8 panel configuration is an excellent choice for compact off grid systems, battery based backups or as a starter array that can be expanded later with additional GMX sections. With quality clamps, grounding hardware and a clean rail layout, the Fast Rack GMX Ground Mount provides a solid foundation for high output LONGi bifacial panels in a small but capable solar field.

Key Features

Array capacity: Fits 8 x LONGi 505W bifacial panels for up to 4.04 kW DC

Layout: Single array with total width of approximately 15 ft 5 in and four ground penetrations

Mount type: Fast Rack GMX ground mount legs and rail kit for long life outdoor installations

Design intent: Built for Canadian snow and wind conditions with corrosion resistant materials

Serviceability: Ground level access for easy panel cleaning, inspection and wiring work

Applications: Small off grid systems, cabins, tiny homes, acreages and starter solar fields