This report to the US Department of Energy discusses the testing and evaluation of the electrostatic precipitator (ESP) that was installed at the government owned pressurized fluidized bed combustor (PFBC) test facility located in Wood-Ridge, NJ and operated by Curtiss-Wright Corporation. Test data on a short term ESP operation at 1400 to 1500/sup 0/F and 84 psia showed that particulate collection efficiencies in the range of 98 to 99.5% are possible and have the potential for meeting DOE's particulate control goals ahead of the gas turbine. The key test program to evaluate the ESP at 1600/sup 0/F and 94 psia could not be properly implemented because of severe damage to ESP internals prior to the test program. The damage was caused by several water floods into the ESP resulting from flow control upsets in the downstream pressurized water scrubber in the PFBC system. The damaged ESP showed particulate collection efficiencies in the 75 to 85% range. Recommendations are made for future course of study with the ESP so that the testing and evaluation program at 1600/sup 0/F and 94 psia can be fully implemented.