Using turbine deposition models and data from PFBC (pressurized fluidized bed combustion) pilot plant/cascade experiments, deposit buildup rates and turbine maintenance intervals to remove deposits are projected for a PFBC power plant system. The power plant consists of a 10 atmosphere PFB boiler with a matching 10:1 pressure ratio turbine and a gas cleanup system to remove particulates from combustor product gases before entering the turbine. The effects on turbine deposition of three alternative particle cleanup systems are evaluated. Turbine deposit removal intervals to prevent excessive power drops due to deposition are found for the alternative gas cleanup systems.