The fuel properties of refuse and the mechanics and combustion technology associated with the utilization of refuse as a fuel in generating utility grade steam were systematically assessed. By estimating the inventories and compositions of refuse that would likely occur, the extent of SO2-abatement that might be realized in using refuse as a partial coal substitute was projected through the year 2000. Ten different combined-fuel (coal + refuse) fired boiler configurations were conceived and then analyzed in terms of process variables (plant power capacity, fuel-ratio, etc.); performance/cost characteristics were also predicted. Similarly treated were five plans for modifying existing plants to refuse-burning systems. At least one of the systems within the first group was identified as being a more cost-effective approach to refuse disposal than is landfill. The cost model was developed to consider all the major elements involved in the erection and operation of the candidate refuse-burning systems. Two new-plant configurations were extracted and subjected to detailed engineering analysis. Cost estimates were iteratively computed for the resulting preliminary designs. (Author)