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Clean Air Markets

EGU NOX Mitigation Strategies Final Rule Technical Support Document for the Cross-State Air Pollution Rule Update

The analysis presented in this document supports the EPA’s Final Cross-State Air Pollution Rule Update for the 2008 Ozone National Ambient Air Quality Standards (CSAPR Update). In developing the CSAPR Update, the EPA considered all NOX control strategies that are widely in use by EGUs. This Technical Support Document (TSD) discusses costs, emission reduction potential, and feasibility related to these EGU NOX emission control strategies.

Specifically, this TSD explores four topics:

  1.   the appropriate representative cost resulting from “widespread” implementation of a particular NOX emission control technology;
  2.   the NOX emission rates commonly achievable by “fully operating” emission control equipment; and
  3.   the time required to implement these EGU NOX control strategies (e.g., installing and/or restoring an emission control system to full operation or shifting generation to reduce NOX emissions). These analyses inform the EPA’s evaluation of costs and emission reductions with the Integrated Planning Model (IPM) v 5.15 and compliance feasibility for the CSAPR Update.
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