The Carneys Point Generating Plant, located on the grounds of
the DuPont Chambers Works facility in Carneys Point Township, New
Jersey, is a 245 megawatt cogeneration facility. Fueled by pulverized
coal, it provides up to 188 megawatts of reliable, economical electricity
— enough for approximately 188,000 homes — to Atlantic
City Electric, plus additional electricity to DuPont. Carneys Point
also supplies the Chambers Works complex with all of its process
steam. Uncommitted capacity and energy beyond the Atlantic City
Electric and DuPont requirements are sold into the regional wholesale
TECHNOLOGY AND ENVIRONMENTAL PERFORMANCE
Carneys Point is one of the cleanest coal-fueled
electric generating facilities in the United States. The plant features
advanced technologies that reduce air emissions to levels well within
federal and state standards, and significantly lower than average
emissions from existing fossil-fueled power plants in the Mid-Atlantic
Carneys Point was the first commercial-scale pulverized-coal plant
in the United States to use selective catalytic reduction (SCR)
technology. In pioneering SCR use, Carneys Point established a new
standard for low nitrogen oxides (NOx) emissions for coal-fueled
The SCR system injects ammonia vapor into the flue gas, in the presence
of a special catalyst, which causes nitrogen oxides to separate
into simple elemental nitrogen and water vapor, or steam. The plant
also employs a spray dryer absorption (SDA) system, designed to
eliminate 93 percent of sulfur dioxide (SO2) emissions. The SDA
system feeds a mixture of lime and water into an atomizer that reduces
the liquid to a very fine spray. The mist-like spray mixes with
incoming flue gases, capturing the sulfur, and forming a dry powder.
The powder is then removed in the dust collection system. Some of
the dust may then be recirculated to reduce the plant's lime consumption.
Finally, more than 99.9 percent of the remaining dust is captured
in two 10-compartment filter units, known as baghouses, which together
are lined with more than 6,000 Teflon®-coated fiberglass bags.
For fuel delivery from the rail cars to the coal handling building,
a sophisticated unloading system was designed with unique environmental
features that eliminate coal dust emissions.
Water for the facility's operations is provided by DuPont, and water
discharges are processed by DuPont's wastewater treatment plant.
The generating plant is designed to protect wetlands. Storm water
run-off is held in basins to allow sediments to settle. Water flow
into the surrounding wetlands is controlled.
OWNERSHIP AND MANAGEMENT
Carneys Point Generating Plant is owned by Chambers
Cogeneration L.P., an affiliate of
National Energy & Gas Transmission, Inc.