Document evqe4o4Y9rp1X70LqJjZB9Gve

UBIEGILO2see##241-1280 Ciaoouratatit206636@3 FFfildc1006/2Y22024 PIgge438 of @28 into wholesale U.S. power markets, including PJM Interconnection, LLC ("PJM") and the Western Electricity Coordinating Council ("WECC"), with Talen's generation fleet principally located in the Mid-Atlantic and Montana. Talen's generation fleet includes wholly owned and partially owned assets that use nuclear, coal, oil, and natural gas as fuels. 3. In my current position as Chief Fossil Officer at Talen, I am responsible for asset management and operations for Talen's fossil generating assets in PJM, WECC, and ISO New England. In that capacity, I also serve as President of Talen Generation, LLC, which indirectly owns the fossil generating assets in RIM and is an affiliate of Talen. I have worked for Talen and its predecessor companies for over 19 years. Over that time, I have held roles of increasing responsibility in multiple aspects of fossil power generation, including asset management, plant operations, engineering, environmental, health and safety, and project development. I have directly managed merchant generating assets in ERCOT, PJM, ISO-NE, NYISO, WECC, and SERC. The plants that I managed have utilized a wide range of technologies, including coal, gas, oil, and biomass-fired boilers; combined cycle units of varying configurations; and simple cycle gas turbines of differing designs. 4. This declaration is submitted in support of the Petitioner's motion for stay of the U.S. Environmental Protection Agency's final rule entitled New Source PerfOrmcmce Standards for Greenhouse Gas Emissions From New, Modified, and Reconstructed Fossil Fuel-Hred Electric Generating Units; Emission Guidelines finGreenhouse Gas Emissions from Existing Fossil Fuel-Fired Electric Generating (Inits; 2 Sierra Club FOIA 2025-EPA-04883 ED_018388_00000309-00052 SC_EVERSPLIT0006215