Siemens Receives Additional U.S. Contracts to Upgrade Power Plant Controls with Advanced I&C System

February 19, 2009

Siemens Energy's Instrumentation & Electrical Business Unit has been awarded contracts from Arizona Public Service (APS), Granite Ridge Energy LLC and Constellation Energy to upgrade the controls at their respective power generating facilities with the installation of the Siemens Power Plant Automation T3000 (SPPA-T3000) system. The newly installed controls are expected to improve plant operation, maintainability and reliability at each location. Siemens recently announced the installation of the SPPA-T3000 at four other power plants in the U.S.

The SPPA-T3000 is a Web-based power plant I&C system specifically designed to implement total power plant and turbine controls on a common, easy-to-use control platform. The system can be integrated seamlessly into existing IT landscapes, independent of the original equipment manufacturer (OEM), to provide real-time functionalities for operations, engineering, diagnostics, archiving, alarm and field devices. With a secured java-enabled interface, authorized users can gain access securely at virtually any time from virtually any location. In addition, Embedded Component Services technology can help simplify power plant operation and maintenance and enable plant operators to run individual power plant units in a flexible operating mode to match the demand.

"The SPPA-T3000, with its easy handling, high performance, and low life cycle cost, is increasingly becoming the control system of choice for power plants throughout the United States," said Joerg Holzapfel, General Manager of Siemens Energy's U.S. Instrumentation & Electrical Business Unit.

The West Phoenix Power Station helps maintain electric system reliability for APS customers in and around the Phoenix, Arizona, area. The plant consists of five combined cycle and two gas-turbine units, with a rated capacity of approximately 1,000-MW. Siemens' scope of supply is to provide the intuitive SPPA-T3000 control system for the combined cycle unit 5, consisting of two gas turbines and one steam turbine.

The Granite Ridge power plant, owned by Granite Ridge Energy, LLC, is a 752-MW rated natural gas-fired combined cycle power plant located in Londonderry, New Hampshire. Siemens will supply the SPPA-T3000 control system for two gas turbines, one steam turbine, two heat recovery steam turbine-generators and the balance of the plant operations. The newly installed controls systems can provide an easy-to-use single control platform for the entire 2-on-1 combined cycle plant.

The Hillabee Energy Center, owned by Constellation Energy, is a partially completed 774-MW rated natural gas power plant located in Tallapoosa County near Alexander City, Alabama. Siemens will supply the SPPA-T3000 controls platform for two gas turbines, one steam turbine, two heat recovery steam generators and the balance of the plant. Siemens will also perform a controls upgrade of the existing excitation systems and static frequency converters (SES/SFC) compact units for the gas turbines and the controls upgrades for the single excitation static system of the steam turbine. The control system project is one of the
important steps Constellation is taking to move the Hillabee project toward commercial operation.

The Siemens Energy Sector is the world's leading supplier of a complete spectrum of products, services and solutions for the generation, transmission and distribution of power and for the extraction, conversion and transport of oil and gas. In fiscal 2008 (ended September 30), the Energy Sector had revenues of approximately EUR22.6 billion and received new orders totaling approximately EUR33.4 billion and posted a profit of EUR1.4 billion. On September 30, 2008, the Energy Sector had a work force of approximately 83,500. Further information is available at:

Company Name: Siemens Power Generation
Address 1: 1345 Ridgeland Pkwy
Address 2: # 116
City: Alpharetta
State: GA
Country: USA
Phone: (678) 256-1500

Contact Name: Michael Berger
Organization: Krome Communications
Title: Media Relations

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