text: Integrated Planning Model ( IPM ) projections indicate that it would be cost effective to install 32 GWe of scrubbers by 2005 in addition to the projected SCR installations ; however , boilermaker labor is not expected to be sufficient to meet this demand even if their numbers grow at the projected 5.3 percent annual growth rate .
  
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  Integrated Planning model projections are consistent with boilermaker labor available .