An aluminum wire positioning device system for solar panel cabling and harness string cabling is provided that includes a support structure, a cable, and a wire positioning device. The wire positioning device includes a center leg, an attachment support leg, an attachment member configured to couple the wire positioning device to the solar panel frame or solar panel support structure at an attachment point, a saddle support leg, and a cable support saddle configured to support the at least one cable. The attachment member is arranged at an angle relative to the cable support saddle about the center leg, and a center-of-gravity of the wire positioning device is aligned with the attachment point, the center leg, and the saddle support leg.