The goal of the U.S. Department of Energy's (DOE) Clean Coal Technology (CCT) program is to furnish the energy marketplace with a number of advanced, more efficient, and environmentally responsible coal utilization technologies through demonstration projects. This document serves as a DOE post-project assessment (PPA) of the Pinon Pine IGCC Power Project, selected in Round IV of the CCT Demonstration program. In August 1992, Sierra Pacific Power Company (SPPCo) entered into a cooperative agreement with DOE to conduct the project, which was sited at the SPPCo Tracy Station, located near Reno, Nevada. The purpose of this CCT project was to demonstrate air-blown integrated gasification combined cycle (IGCC) technology as commercially viable by installing a Kellogg/Rust/Westinghouse (KRW) gasifier and a General Electric (GE) Frame 6FA combustion turbine. In addition to SPPCo, the project team included Foster Wheeler USA Corporation (FWUSA) for engineering and construction, Bechtel Corporation for startup engineering, and M.W. Kellogg Company as technology supplier. DOE provided $167.9 million, or 50 percent of the total project funding of $335.9 million. DOE participation in the project ended on January 1, 2001, when the cooperative agreement expired.