The first ever pressurized fluidized-bed combustor (PFBC) came into operation at the laboratories of the British Coal Utilization Research Laboratory at Leatherhead in 1969. This operated at pressures up to 6 atmospheres and ultimately had a thermal input of 4.5 MW. In the ensuing years, six other laboratory-scale combustors with thermal inputs ranging from 0.4 MW to about 2.4 MW and with working pressures up to 20 atmospheres came into operation. Scale up of the technology began in 1980. Comprehensive data on combustion, hot gas cleanup and environmental aspects of the technology have been accumulated and design studies have shown that combined-cycle power plant based on PFBC have the potential to provide electric power at lower busbar costs than competing advanced power generating technologies. This paper provides an overview on the development of the technology, the technical advances made, and those in the pipeline aimed at making the system even more attractive.