A load bearing wall system which is made from a plurality of interlocking panels. Each panel includes a hollow panel body having a first end, a second end, and an interior cavity. A male coupling is positioned at the first end and a female coupling is positioned at the second end. The female coupling is capable of interlocking with the male coupling of another of the plurality of interlocking panels. The male coupling houses a structural stud that extends for the entire vertical height of the hollow panel body. The interior cavity of the hollow panel body is filled with insulation. Interlocking panels intended for straight sections have the female coupling opposed to the male coupling in a linear alignment. Interlocking panels intended for a corner or change in direction have the hollow panel body bent so that the female coupling is angularly offset from the male coupling.