repowering
(12) The term “repowering” means replacement of an existing coal-fired boiler with one of the following clean coal technologies: atmospheric or pressurized fluidized bed combustion, integrated gasification combined cycle, magnetohydrodynamics, direct and indirect coal-fired turbines, integrated gasification fuel cells, or as determined by the Administrator, in consultation with the Secretary of Energy, a derivative of one or more of these technologies, and any other technology capable of controlling multiple combustion emissions simultaneously with improved boiler or generation efficiency and with significantly greater waste reduction relative to the performance of technology in widespread commercial use as of November 15, 1990 . Notwithstanding the provisions of section 7651h(a) of this title , for the purpose of this subchapter, the term “repowering” shall also include any oil and/or gas-fired unit which has been awarded clean coal technology demonstration funding as of January 1, 1991 , by the Department of Energy.