A system and associated method of processing solid waste via a waste gasification process resulting in usable by-products may be used to generate electricity. The method utilizes a rotary kiln heated to a temperature of at least 800° F., a reduction chamber, heated to a temperature of at least 1800° F. and a boiler downstream of the reduction chamber. Steam generated in the boiler powers a turbine which operates a generator for generating electricity. Dampers may be positioned to bypass the power generation system. Gases are monitored and transported from the reduction chamber to at least one air pollution control unit to remove contaminants before being vented into the atmosphere.