We Energies’ Pleasant Prairie Power Plant is a good example of how existing plants retrofitted with NOx and SO2 removal systems benefit from early planning and action. P4, as everyone calls it, recently completed a multiyear project to add a selective catalytic reduction system to one of its two units and a scrubber to both. The unique design and contracting aspects of the project make Pleasant Prairie one of POWER’s top coal-fired plants of 2007.