A mass-burn WTE facility typically consists of a reciprocating grate combustion system and a refractory-lined, water-walled, steam generator. A typical facility is shown in Figure 1, and consists of two or more combustors that are sized to properly fire or burn the area’s municipal solid waste during its peak generation period. Typically, at least two combustor units are included to provide a level of redundancy and to allow waste processing at a reduced rate during periods of scheduled and unscheduled maintenance. Mass-burn facilities today generate a higher quality steam, (i.e., pressure and temperature) compared to modular systems. This steam is then passed through a once-through turbine generator to produce electricity or through an extraction turbine to generate electricity and provide process steam for heating or other purposes. Higher steam quality allows the use of more efficient electrical generating equipment, which, in turn, can result in a greater revenue stream per ton of waste.