Prairie State Generating Company

Prairie State Energy Campus
Washington County, Illinois

Plant Owner
Prairie State Generating Company (PSGC)

Plant Name
Prairie State Energy Campus

EPC Contractor
Bechtel Power Corporation

Washington County, Illinois

Contract Order: 2007

Planned Commercial Operation

  • Unit 1, 4th quarter, 2011
  • Unit 2, 3rd quarter, 2012

B&W Scope

  • Supercritical, spiral woundcoal-fired boilers
  • Construction advisory services
  • Startup and commissioning advisory services

Boiler Specifications

  • Boiler type: Pulverized coalfired SWUP™ supercritical boiler
  • Design fuel: Illinois bituminous coal
  • Capacity: 2 X 800 MW (net)
  • Main steam flow: 5,910,150 lb/h (745 kg/s)
  • Superheater outlet pressure: 3780 psig (26 MPa)
  • SH/RH outlet temperature: 1055/1055 F (568/568 C)
Environmental Equipment 

Other Equipment Supplied by B&W

Project Facts

  • The boilers were originally designed for another project and were partially fabricated when that project was canceled.
  • The design of these boilers was then modified to adapt to the requirements of the Prairie State Energy Campus project, including a change in fuels from Powder River Basin sub-bituminous coal to Illinois bituminous coal.
  • The boilers burn coal from a mine adjacent to the power plant.
  • Electricity produced is dedicated to supply eight Midwestern-based public power utilities serving customers across nine states.

Sectional Sideview of Prairie State Units 1 and 2.

Hover and click on the numbered image shown below to learn more!

Air Heaters

Air Heater


B&W Supercritical Boiler

B&W Roll Wheel® Pulverizer



SCR System for NOx Reduction

New Build

We consistently demonstrate the ability to successfully execute innovative solutions for our customers, from new equipment to large, complex full-scope engineering and construction projects.

Upgrades / Retrofits

Modifying, improving and maintaining existing equipment are vital considerations for the long-term viability and profitability of all operations.

Parts / Services

An extensive network of worldwide regional service centers, field service engineers and technical support personnel are available to provide the customized service and aftermarket solutions for your requirements.