Referring now to FIG. 4, an interior of the cabinet 12 is shown in a cross-sectional, perspective view without any edge modules 22, 24 installed. The cabinet 12 includes upper guide rails 40 that are configured to interface with the upper guide rails 30 of each edge module 22, 24 to assist in mounting the corresponding edge module 22, 24 in the cabinet 12. Similarly, the cabinet 12 includes lower guide rails 42 that are configured to interface with the lower guide rails of each edge module 22, 24 to assist in mounting the corresponding edge module 22, 24 in the cabinet 12. As illustrated in FIG. 5, the edge modules 22, 24 can slide into and out of the cabinet 12 along the guide rails 40, 42. In the illustrative embodiment, the edge modules 22, 24 are designed to be installed/removed from a front side (e.g., the front side 14, shown in FIG. 1) of the cabinet 12. In addition to the edge modules 22, 24, the modular edge power system 10, in the illustrative embodiment, also includes a fixed edge assembly 44 that is positioned near the rear of the cabinet 12. In the illustrative embodiment, the fixed edge assembly 44 is designed to be non-removable during operation of the cabinet 12. As such, the fixed edge assembly 44 only contains components with low failure rates (e.g., copper, sheet metal, wire sets, insulators, etc.) such that a need to repair or replace any components of the fixed edge assembly 44 will be very rare. In the illustrative embodiment, no electronics or printed wire board (PWB) assemblies are included in the fixed edge assembly 44. Rather, such components are included in the easily replaceable edge modules 22, 24.