Solar Panel Mounting Grounding Clips

Grounding PV modules to reduce or eliminate shock and fire hazards is necessary and required by the National Electrical Code. This can be done in many different ways. The traditional method is to use the ground bond point of each solar panel and connect all the panels together with heavy gauge bare copper wire. This approach can be difficult, time-consuming and costly.
The incompatibility of copper and aluminum was discovered from numerous fires in houses wired with aluminum wiring in the 1970's. Copper an aluminum will also react and corrode through galvanic action. The surfaces of aluminum frames either are naturally oxidized, anodized or have clear coatings, any of which constitute an insulating surface. These insulating barriers do not provide any protection from electrical shocks, but are sufficient to impair long-lasting, low-resistance electrical connections.
In order to use the bare copper wire for bonding, the fasteners attaching to the aluminum must be stainless steel. Several years ago We developed an accessory, Solar Panel Mounting Grounding Clips, that allows PV panels to be directly ground bonded to the aluminum rails or other mounting systems. The rails are then connected to each other and to ground.