Oklahoma Gas & Electric Muskogee Generating Station Best ...

Oklahoma Gas & Electric
Muskogee Generating Station – BART Determination
May 28, 2008
EXECUTIVE SUMMARY
OG&E’s Muskogee Generating Station is located at 5501 Three Forks Road near Muskogee,
Oklahoma. The station has a total of four (4) generating units designated as Muskogee Units 3, 4, 5
and 6. Muskogee Unit 3, which became operational in 1956, is a nominal 173-MW gas-fired unit.
Muskogee Units 4, 5 and 6 are nominal 572-MW (gross) coal-fired units. Construction of
Muskogee Units 4 & 5 commenced in the early 1970s, with Unit 4 coming on-line in 1977 and Unit
5 coming on-line in 1978. Construction commenced on Muskogee Unit 6 in 1980, and Unit 6
commenced commercial operation in mid-1984. All three coal-fired units at the Muskogee
Generating Station are dry bottom tangentially-fired pulverized coal (PC) boilers. The boilers fire
subbituminous coal as their primary fuel, and are equipped with electrostatic precipitators for
particulate control.
On July 6, 2005, the U.S. Environmental Protection Agency (EPA) published the final “Regional
Haze Regulations and Guidelines for Best Available Retrofit Technology Determinations” (the
“Regional Haze Rule” 70 FR 39104). The Regional Haze Rule requires certain States, including
Oklahoma, to develop programs to assure reasonable progress toward meeting the national goal of
preventing any future, and remedying any existing, impairment of visibility in Class I Areas. The
Regional Haze Rule requires states to submit a plan to implement the regional haze requirements
(the Regional Haze SIP). The Regional Haze SIP must provide for a Best Available Retrofit
Technology (BART) analysis of any existing stationary facility that might cause or contribute to
impairment of visibility in a Class I Area.
BART-eligible sources include those sources that:
(1) have the potential to emit 250 tons or more of a visibility-impairing air pollutant;
(2) were in existence on August 7, 1977 but not in operation prior to August 7, 1962; and
(3) whose operations fall within one or more of the specifically listed source categories in 40
CFR 51.301 (including fossil-fuel fired steam electric plants of more than 250 mmBtu/hr
heat input and fossil-fuel boilers of more than 250 mmBtu/hr heat input).
Muskogee Unit 3 was in operation prior to August 7, 1962. Therefore, Unit 3 is not a BARTeligible
source. Muskogee Unit 6 was not in existence prior to August 7, 1977; therefore, Unit 6 is
not a BART-eligible source. Muskogee Units 4 & 5 are fossil-fuel fired boilers with heat inputs
greater than 250 mmBtu/hr. Both units were in existence prior to August 7, 1977 (i.e., construction
of the units has commenced), but not in operation prior to August 7, 1962. Based on a review of
existing emissions data, both units have the potential to emit more than 250 tons per year of
visibility impairing pollutants. Therefore, Muskogee Units 4 & 5 meet the definition of a BARTeligible
source.
1