In The Matter of: ) Proposed New Clean Air Interstate Rule )) NO.R06-26(CAIR) S02, NOx Annual and NOx Ozone ) (Rulemaking -Air)Season Trading Programs, 35 Ill.
The most economic means to effect this strategy relies primarily on installing high capital
cost SCRs on our largest units with the highest NOx rates.
These units are typically not large enough or may not run at a high enough capacity factor
to provide the economies of scale which would economically warrant addition of anexpensive SCR.
... 
