News | December 15, 2009

Emerson To Digitally Automate The First Supercritical Coal-Fired Power Plant In The Czech Republic


Emerson Process Management has won a contract to apply its PlantWeb® digital plant architecture with the Ovation® expert control system to CEZ's new supercritical coal-fired unit being built at Ledvice power station in the Czech Republic. The new unit will reduce CO2 emissions by 20 percent and is being built as a replacement for the older Ledvice units 2 and 3. When complete, it will be the largest coal-fired unit in the Czech Republic, with a generating capacity of 660 MW.

CEZ is one of Europe's top ten power utilities with a strong market position in the Czech Republic. As part of a coal power plant modernization program, CEZ is investing in Ledvice and other selected power plants located near the Czech lignite mines. As well as delivering high-efficiency electrical power, the new unit at Ledvice will use the latest technology for Flue Gas Desulphurization (FGD) and ash handling to meet new European environmental standards. Operation of the new plant is scheduled for December 2012.

CEZ named Emerson as the main automation contractor for the new unit's instrumentation and control systems. This role includes engineering design, instrument and equipment procurement, control system supply, site installation, commissioning and start-up. Emerson's Power & Water Solutions industry center will manage this turn-key instrumentation and control project.

The automation strategy for the Ledvice supercritical unit is based on Emerson's PlantWeb digital plant architecture with the Ovation expert control system, Rosemount® intelligent field devices, Fisher® valves and AMS™ Suite: Intelligent Device Manager predictive maintenance software. Emerson's Ovation system will monitor and control the supercritical boiler and balance-of-plant processes. An Ovation Safety Instrumented System will be used for the boiler protection system and burner management system.

As part of the PlantWeb architecture, the Ovation system will use HART® communications to network Emerson's intelligent devices throughout the plant. The Ovation system will also communicate with the intelligent Motor Control Centers using Profibus DP and with other equipment and applications using Modbus, OPC and IEC 61850 links.

"We are delighted that CEZ has chosen Emerson's leading digital technologies for the new Ledvice plant, which will be the first supercritical unit in the Czech Republic," said Bob Yeager, president of the Power & Water Solutions division of Emerson. "A key factor in our ongoing partnership with CEZ was our ability to demonstrate our considerable experience in automating supercritical units as well as managing complex projects of this scale. CEZ also recognized the benefits of local support from our team of specialists at our power expertise center in Prague."

Emerson's Ovation system was designed specifically for the power generation industry and is proven in thousands of installations. Well-established as a leading control system for plants using supercritical technologies, the Ovation system enables operation at elevated steam and temperature levels, making electricity generation more efficient, while also reducing fuel-related emissions.

The Ledvice Power Plant began operation in the second half of the 1960s. Originally consisting of five units, only three are currently in operation. Units 2 and 3 will be shut down when the new unit is operational and Unit 4, which was converted to a fluidized bed boiler construction ten years ago, will remain operational.

About Emerson Process Management
Emerson Process Management (, an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the power, water and wastewater treatment, metals and mining, chemical, oil and gas, refining, pulp and paper, food and beverage, pharmaceutical, and other industries.

Emerson's Power & Water Solutions division ( is a global supplier of advanced distributed process control and information systems. The Pittsburgh-based company is a recognized leader in developing plant-wide process control solutions for the power generation, water treatment and wastewater treatment industries. Power & Water Solutions plays a key role in the Emerson mission of combining superior products and technology with industry-specific engineering, consulting, project management and maintenance services. Emerson brands include: PlantWeb®; Ovation®; Scenario®, SmartProcess®; Fisher®; Micro Motion®; Rosemount®; Daniel®, DeltaV™; and AMS™ Suite.

About Emerson
Emerson, based in St. Louis, Missouri (USA), is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Emerson's sales in fiscal 2009 were $20.9B. The company is ranked 94th on the Fortune 500 list of America's largest companies. For more information, visit

SOURCE: Emerson Process Management, Power & Water Solutions