; and (2) with respect to a determination of the carbon intensity of any generating unit using qualified renewable biomass or qualified low-carbon fuel, or generating qualified waste-to-energy, in consultation with— (A) the Secretary of Agriculture; and (B) the Secretary of the Interior. (d) Carbon intensity for certain categories of generating units (1) Generating units utilizing technologies without direct emissions The Secretary shall assign a carbon intensity of zero for any generating unit of a generator that does not produce direct emissions of any greenhouse gas in generating electric energy, including any generating unit that generates electric energy only through the use of solar, wind, ocean, current, wave, tidal, geothermal, nuclear energy, or hydropower technology (except as described under paragraph (3)). (2) Generating units utilizing technologies utilizing fossil fuels (A) Accounting for upstream greenhouse gas emissions In determining the carbon intensity of each generating unit using fossil fuel, the Secretary shall utilize the best available science, including with respect to the measurement of low-frequency high-emission events, including data from the detection of natural gas flaring from the satellite observations of the National Oceanic and Atmospheric Administration, to account for— (i) the carbon dioxide emissions of the generating unit; and (ii) (I) the average amounts of carbon dioxide and methane emissions, in terms of carbon dioxide equivalent, that occur during extraction, flaring, processing, and transportation in the United States of the fossil fuel consumed by the generator