Switchgear modernization solutions present a viable option when contemplating the ‘repair or replace’ dilemma for aging equipment. Direct replacement circuit breakers are designed to fit into the existing cubicle with little-to-no modification to the switchgear cell, minimizing downtime. In a retrofill solution, the existing switchgear cell and bus are modified to accept the new circuit breaker. Both modernization solutions improve power system reliability and lower life-cycle costs.