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DEQ hears public comment on Duke Energy plan to replace two coal boilers with gas turbines at Marshall Steam Station
Summary
At a Nov. 19 public hearing, DAQ staff described Duke Energy Carolinas’ proposal to retire two coal-fired boilers at the Marshall Steam Station and install two natural-gas-fired turbines; residents called for stronger monitoring, an enforceable shutdown date and for the permit to be denied.
State Department of Environmental Quality hearing officer Heather Carter opened a public hearing on Nov. 19 to gather comments on a draft air quality permit for Duke Energy Carolinas’ Marshall Steam Station in Catawba County.
Joe Volper, an engineering supervisor in the Division of Air Quality’s permitting section, described the company’s proposal to retire two of the plant’s coal-fired boilers and replace them with two new natural-gas-fired simple-cycle combustion turbines that can burn No. 2 fuel oil as backup. Volper said the project also includes an auxiliary natural-gas-fired boiler, two natural-gas-fired heaters, an emergency diesel generator, an emergency fire pump engine and two diesel fuel storage tanks. He said emissions from the new turbines would be controlled with dry low-NOx combustors, selective catalytic reduction, an oxidation catalyst and water injection if oil is used.
Volper told the hearing that Duke modeled potential toxic air emissions…
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