SUPPLEMENTARY INFORMATION:

Description of Alternatives

DOE analyzed two alternatives in the Draft EIS: The proposed action and the no-action alternative. Under the proposed action, DOE would provide cost-shared funding for construction and operation of gasification facilities at Orlando Utilities Commission's (OUC's) existing Stanton Energy Center near Orlando, Florida. The project has been selected by DOE under the Clean Coal Power Initiative (CCPI) to demonstrate advanced power generation systems ( printed page 50052) using Integrated Gasification Combined Cycle (IGCC) technology. Although DOE funding would support only the Orlando Gasification Project ( i.e., coal gasifier, synthesis gas cleanup systems, and supporting infrastructure), the project would be integrated with a planned, privately funded, combined-cycle unit, which together would constitute the IGCC facilities. The facilities would convert coal into synthesis gas to drive a gas combustion turbine, and hot exhaust gas from the gas turbine would generate steam from water to drive a steam turbine. Combined, the two turbines would generate 285 MW (megawatts) of electricity. The EIS evaluates potential impacts of the proposed facilities on land use, aesthetics, air quality, geology, water resources, floodplains, wetlands, ecological resources, social and economic resources, waste management, human health and safety, and noise.

Construction of the proposed facilities would begin in late 2007 and continue until early 2010. An average of about 350 construction workers would be on the site during construction. Approximately 600 to 700 workers would be required during the peak construction period between fall 2008 and spring 2009. After mechanical checkout of the proposed facilities, demonstration (including data analysis and process evaluation) would be conducted over a 4.5-year period from mid 2010 until late 2014. If the demonstration is successful, commercial operation would follow immediately. The combined workforce ( i.e., including the proposed Orlando Gasification Project and the combined-cycle generating unit) would consist of approximately 72 employees added to the existing Stanton Energy Center staff of 204 employees. Of the 72 new employees, 19 workers would provide support only during the startup and demonstration phases of the project, while 53 employees would be needed over the lifetime of the facilities ( i.e., during startup, demonstration, and commercial operation), unless the gasifier and related equipment would no longer be required because the demonstration was unsuccessful.

Under this latter scenario, only 21 employees would be needed over the lifetime of the remaining combined-cycle unit using natural gas exclusively. The facilities would be designed for a lifetime of at least 20 years, including the 4.5-year demonstration period. The new coal gasifier would operate entirely on coal, consuming a total of approximately 1,020,000 tons per year to produce synthesis gas. Two to three trains per week would deliver low-sulfur subbituminous coal from the Powder River Basin in Wyoming. The heating value of the coal would average about 8,760 Btu/lb and the sulfur content would average about 0.26%. Most air emissions would result from combustion of synthesis gas in the gas combustion turbine during normal operations. The exhaust gas would be released to the atmosphere via a 205 ft stack.

Sources of air emissions from the proposed facilities would include the HRSG stack, startup stack, multipoint flare, and 6-cell mechanical-draft cooling tower, of which the HRSG stack would generate the most emissions. Except during occasional startups, shutdowns, and upsets, the flare would normally have only minimal emissions associated with eight natural gas-fired pilot lights. Based on 100% load throughout the year (100% capacity factor) using the higher of estimated synthesis gas or natural gas emission rates, annual emissions of criteria pollutants would include 162 tons of SO₂, 1,006 tons of NO_X, 189 tons of particulate matter, 654 tons of carbon monoxide (CO), and 0.03 tons of lead (Pb). Annual NO_X emissions from the Stanton Energy Center overall would not be expected to increase because OUC has agreed, as part of the permitting process, to reduce NO_X emissions from other units at the Stanton Energy Center so that there would be a net decrease in NO_X emissions. Annual emissions of volatile organic compounds (VOCs), a precursor of the criteria pollutant ozone, would be 129 tons.

Under the No Action Alternative, DOE would not provide cost-shared funding to demonstrate the Orlando Gasification Project. Without DOE participation, Southern Company and/or OUC could reasonably pursue at least one option. The combined-cycle facilities could be built at the Stanton Energy Center without the gasifier, synthesis gas cleanup systems, and supporting infrastructure. The combined-cycle facilities would operate using natural gas as fuel without the availability of synthesis gas. During operation of the natural gas-fired unit, emissions of air pollutants ( e.g. , SO₂ and NO_X) would be less than those predicted for the proposed Orlando Gasification Project. The flare required for the proposed facilities would not be required. This scenario would not provide a low-cost fuel source for the combined-cycle facilities and would not contribute to the goal of the CCPI program, which is to accelerate commercial deployment of advanced coal technologies that provide the United States with clean, reliable, and affordable energy.

Availability of the Draft EIS

Copies of this Draft EIS have been distributed to Members of Congress, Federal, State, and local officials, and agencies, organizations and individuals who may be interested or affected. This Draft EIS will be available on the Internet at: www.eh.doe.gov/​nepa/​. Additional copies can also be requested by telephone at: (412) 386-6065, or (888) 322-7436, x6065. Copies of the Draft EIS are also available for public review at the Alafaya Library, 1200 E. Colonial Dr., Orlando, Florida, 32803.

71 FR 50051