A large power producer in the Northeast U.S. has a four unit power generation plant that operates on demand, based upon bid price to the area ISO. Plant efficiency and speed of response is crucial. The Siemens PS2 digital valve positioner is being used on a feedwater and startup valve for Unit #3, and has been tested and compared with both traditional “analog” valve instrumentation and other competitive digital positioners. This customer prefers Siemens valve instrumentation. Read the full case study to learn more.