ISC was responsible for the removal and rehabilitation of an off-grid solar power system at the Kofa National Wildlife Refuge near Yuma, AZ. This small repeater system, accessible only by helicopter, had ended its useful life and needed repair. All personnel, tools and materials were hauled up the mountain peak via helicopter and long line. ISC provided all replacement material, removed the existing equipment, then installed and tested new equipment. Sites like this one require specialized coordination of labor and equipment. Our experience with these specialized logistics is why we are frequently selected for these types of projects. Unexperienced contractors often fail to plan for the many variables helicopter use entails which can end up increasing costs significantly. ISC performed this project on time with no incidents, satisfying the requirements of the U.S. Fish and Wildlife service.