The Cedar Bay Generating Plant is a 258 megawatt, coal-fired cogeneration
plant located in Jacksonville, Florida. It provides electricity
— enough for about 250,000 homes — to Florida Power
and Light Company and up to 215,000 pounds of steam per hour to
Smurfit-Stone Container’s adjacent recycled linerboard paper
TECHNOLOGY AND ENVIRONMENTAL PERFORMANCE
Power magazine, a leading industry trade publication, has called
Cedar Bay "one of the cleanest and most flexible coal-burning
cogen facilities in the world." For continuing to burn coal
cleanly in Florida, Cedar Bay received Power's 1995 "Powerplant
of the Year" award.
The plant operates three reheat circulating fluidized-bed (CFB)
boilers fueled by low-sulfur coal. CFB boilers are one of the most
advanced and proven technologies available today for burning coal
cleanly. A circulating fluidized-bed contains a mixture of crushed
limestone and coal suspended in a flow of hot air. The limestone
(aragonite) strips the sulfur from the coal during combustion, minimizing
sulfur dioxide (S02) emissions.
The coal arrives by bottom-dump rail cars at a rate of about two
to three 90-car unit trains per week. The plant's solid waste ash
is used beneficially for sludge stabilization.
To control emissions of nitrogen oxides (N0x), Cedar Bay uses selective
non-catalytic reduction (SNCR) technology. The SNCR process introduces
ammonia into the exhaust steam, splitting the nitrogen oxides into
simple elemental nitrogen and water vapor, effectively reducing
nitrogen oxide emissions to among the lowest levels for a coal plant
in the United States.
As an added environmental benefit, the steam Cedar Bay provided
to its steam host allowed the company to retire five old generating
units that had been a major source of Jacksonville's air pollution.
Cedar Bay is designed to protect local water quality. Rather than
using critical fresh water supplies for plant cooling, the plant
uses treated wastewater from Smurfit-Stone Container. The zero-discharge
water treatment system, one of the largest applications of this
technology in operation in the U.S., recycles wastewater internally,
preventing discharges to the Broward/St. Johns Rivers. Run-off from
the coal and limestone piles is collected in a receiving pond, treated
and re-used in the plant.
OWNERSHIP AND MANAGEMENT
Cedar Bay Generating Plant is owned by Cedar Bay Generating Company
L.P., an affiliate of
National Energy & Gas Transmission, Inc.