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Best Available Control Technology (BACT ) Guideline 3.4.4
Last Update: 4/5/2001


Limited Use (< 877 hours per year) Gas Fired Turbine = or < 26 MW, without Heat Recovery
Pollutant Achieved in Practice or in the SIP Technologically Feasible Alternate Basic Equipment
COPUC quality natural gas.1. 90 % control efficiency (SCONOx, or equal). 2. 71% control efficiency (Oxidation catalyst, or equal)
NOx42 ppmvd @ 15% O2 (Water injection system, or equal).1. 2.5 ppmv NOx @ 15% O2 (SCR, SCONOx, or equal). 2. 15 ppmv @ 15% O2 (Dry low NOx Combustors, or equal). 3. 25 ppmv @ 15% O2 (Dry low NOx Combustors, or equal).
PM10Natural gas, air intake filter, and a maximum lube vent exhaust visible emissions of 0% opacity with either a lube oil coalescer, a lube vent high efficiency particulate filter , or a lube vent routed to the turbine or exhaust for oxidation.
SOxPUC quality natural gas.
VOCPUC quality natural gas with fuel oil #2 as backup.1. 90 % control efficiency (SCONOx, or equal). 2. 71% control efficiency (Oxidation catalyst, or equal)


BACT is the most stringent control technique for the emissions unit and class of source. Control techniques that are not achieved in practice or contained in s a state implementation plan must be cost effective as well as feasible. Economic analysis to demonstrate cost effectiveness is requried for all determinations that are not achieved in practice or contained in an EPA approved State Implementation Plan.

This is a Summary Page for this Class of Source. For background information, see Permit Specific BACT Determinations on Details Page.