Oklahoma Gas & Electric Muskogee Generating Station Best ...

Oklahoma Gas & Electric
Muskogee Generating Station – BART Determination
May 28, 2008
(1) costs of compliance;
(2) energy impacts; and
(3) non-air quality environmental impacts.
Costs of Compliance
The economic analysis performed as part of the BART determination examines the costeffectiveness
of each control technology, on a dollar per ton of pollutant removed basis.
Annual emissions using a particular control device are subtracted from baseline emissions
to calculate tons of pollutant controlled per year. Annual costs are calculated by adding
annual operation and maintenance costs to the annualized capital cost of an option. Cost
effectiveness ($/ton) of an option is simply the annual cost ($/yr) divided by the annual
pollution controlled (ton/yr).
In addition to the cost effectiveness relative to the base case, the incremental costeffectiveness
to go from one level of control to the next more stringent level of control may
also be calculated to evaluate the cost effectiveness of the more stringent control.
Energy Impact Analysis
The energy requirements of a control technology should be examined to determine whether
the use of that technology results in any significant or unusual energy penalties or benefits.
Two forms of energy impacts associated with a control option can normally be quantified.
First, increases in energy consumption resulting from increased heat rate may be shown as
total Btu’s or fuel consumed per year or as Btu’s per ton of pollutant controlled. Second,
the installation of a particular control option may reduce the output and/or reliability of
equipment. This reduction would result in decreased electricity available to the power grid
and/or increased fuel consumption due to use of less efficient electrical and steam
generation methods.
Non-Air Quality Environmental Impact Analysis
The primary purpose of the environmental impact analysis is to assess collateral
environmental impacts due to control of the regulated pollutant in question. Environmental
impacts may include solid or hazardous waste generation, discharges of polluted water
from a control device, increased water consumption, and land use impacts from waste
disposal.
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