As the demand for energy in the United States continues to grow, Graycor Industrial Constructors Inc., a subsidiary of the Graycor family of companies, is delivering on a diverse and complex scale of environmental and transmission and distribution projects. Graycor Industrial is currently modernizing and retrofitting existing power plants, upgrading equipment and building new energy sources coast to coast.

In January of 2007, a Graycor Industrial crew began work for an environmental retrofit project at American Electric Power Co. Inc.'s (AEP) 1,745-megawatt coal-fired generation facility in Conesville, Ohio, located approximately 70 miles east of Columbus. The two-phased project, which will wrap up in spring 2009, involves installation of FGD and SCR systems that will reduce sulfur dioxide and nitrogen oxide emissions from the plant's Unit No. 4. Phase I entails substructure work including foundations, underground utilities, roadways, site grading and surfacing. The second phase of the project involves all superstructures supporting the FGD and SCR systems, as well as all associated equipment and buildings.

Graycor Industrial is currently replacing an existing flue gas desulfurization (FGD) system with a wet flue gas desulfurization (WFGD) system for AmerenEnergy Resources Generating Co. at its Duck Creek power station, a 400-megawatt coal-fired generation facility located in Canton, Ill., near Peoria. The new scrubber system more efficiently removes sulfur dioxide from the flue gas emissions. The retrofit project also includes installation of an eight-cell, electrostatic precipitator and associated foundations and equipment. Graycor Industrial's past work at the Duck Creek plant includes performing a selective catalytic reduction (SCR) installation in 2003.