ABB to Provide AmerenUE Hydro Plant with Equipment for Improved Functionality, Reliability

ABB wins order to retrofit AmerenUE Taum Sauk Hydroelectric plant with their complete iICE engineered solution

Orlando, Florida, December 2, 2008 - ABB, the leading power and automation technology company, announced today that it has won an order to provide power plant equipment for the AmerenUE Taum Sauk Pump Storage Hydro plant in Missouri.

ABB will implement a completely integrated Instrumentation, Control and Electrical (iICE) solution to help retrofit the plant, allowing for improved functionality, reliability and modernization. The Taum Sauk power station is a 440 megawatt (MW) pump storage hydro plant comprised of two units. The total project value is $11.5 million and is scheduled for operation by December 2009.

The scope will include ABB products and systems from four divisions - Power Products, Power Systems, Process Automation and Automation Products. This includes instrumentation, medium & low voltage MCC's and switchgear, protection system, AC/DC auxiliaries, and System 800xA Extended Automation for the control system including the governor. This turnkey project includes all associated engineering, installation supervision, commissioning, and training.

"We are pleased to partner with ABB and to tap into their vast array of power plant equipment and engineering expertise as we strengthen our AmerenUE Taum Sauk Pumped Storage hydro plant with improved reliability and functionality," said Mark Birk, vice president, Power Operations, AmerenUE. "ABB worked together with our engineers to develop a practical solution that will modernize our hydro plant and, ultimately, help us keep pace with the ever-increasing power demands of our customers."

"I had the pleasure of personally witnessing an impressive team effort between ABB and AmerenUE in developing an effective solution for the Taum Sauk plant, which is our first hydro iICE order in the United States," said Kevin McAllister, senior vice president and general manager, ABB Power Generation, North America. "One key success factor was our capability and international experience in delivering large pump storage hydro projects. This project represents a significant step in our long-term relationship with AmerenUE as we add more value and take on the role of providing a fully-integrated solution."

The announcement was made at the Power-Gen International Conference & Exhibition in Orlando.

About AmerenUE

AmerenUE, a subsidiary of St. Louis-based Ameren Corporation, serves 1.2 million electric customers and 127,000 natural gas customers in a 24,000-square-mile area covering north, central and eastern Missouri.

About ABB

ABB ( is a leader in power and automation technologies that enable utility and industry customers to improve their performance while lowering environmental impact. The ABB Group of companies operates in around 100 countries and employs about 120,000 people. The company's North American operations, headquartered in Norwalk, Connecticut, employ about 12,000 people in 20 manufacturing and other major facilities.

For more information, please contact:
Bill Rose
Media Relations Manager
ABB Inc.
Power Products & Power Systems North America
+1.919.807.5743 - office
+1.919.244.4879 - mobile

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