PACE 320 Combined-Cycle Power Plant Diagram


Dublin Core


PACE 320 Combined-Cycle Power Plant Diagram

Alternative Title

PACE Combined-Cycle Plant


Energy--United States


A simplified power cycle diagram depicting the concept in which two Westinghouse 501 (W501) gas turbines exhaust into individual heat recovery steam generators (HRSGs) and produce steam for a 100 MW steam turbine. In 1970, Westinghouse introduced the Power at Combined Efficiency (PACE) pre-engineered combined-cycle power plant concept. The Power at Combined Efficiency (PACE) Engineering Manager was Paul A. Berman, who is often considered "The Father" of the Westinghouse combined-cycle plant. With the Westinghouse 501D rated at approximately 100 MW, the total power output of the Power at Combined Efficiency (PACE) plant was approximately 300MW.

Originally called the Westinghouse Electric Company, George Westinghouse (1846-1914) founded his manufacturing company in Pittsburgh, Pennsylvania, on January 8, 1886. In 1889, he renamed his business The Westinghouse Electric and Manufacturing Company. Westinghouse's primary products include turbines, generators, motors and switchgear related to the generation, transmission, and use of electricity. The company changed its name to Westinghouse Electric Corporation in 1945. In 1981, the company began to relocate its division headquarters for the Steam-Turbine Generator Divisions from Pennsylvania (turbines from Lester and generators from Pittsburgh) to Orlando, Florida. The Power Generation Business Unit (PGBU) building was located in The Quadrangle, at 4400 Alafaya Trail. Originally, Westinghouse had purchased a large plot of land for future development that extended westward from Alafaya Trail to Rouse Road. The original headquarters was located on several acres of that land parcel close to Alafaya Trail.

As the PGBU grew in size, other buildings were rented and then, after PGBU was sold to Siemens Corporation, additional buildings were added to the complex. In 1994, after a major corporate management shuffling and commitment to change from an industrial manufacturing company to primarily a broadcasting/communications company, Westinghouse bought the CBS Network and changed its name to the CBS Corporation. As the PGBU grew in size, other buildings were rented and then, after PGBU was sold to Siemens Corporation in 1998, additional buildings were added to the Quadrangle.


Original diagram: PACE: The Westinghouse Combine Cycle Packaged Powerplant. Westinghouse Electric Corporation: Private Collection of Harry L. Jaeger.

Date Created

ca. 1970-1975


Jaeger, Harry L.

Is Format Of

Is Part Of

Westinghouse Electric Collection, RICHES of Central Florida.




405 KB


1 diagram




Still Image


Lester, Pennsylvania

Accrual Method



History Teacher

Rights Holder

Copyright to this resource is held by Siemens and is provided here by RICHES of Central Florida for educational purposes only.


Jaeger, Harry L.
Cepero, Laura

Digital Collection

External Reference

"PACE: The Westinghouse Combine Cycle Packaged Powerplant." RICHES of Central Florida.
"History." Westinghouse Nuclear.
"Westinghouse Power Generation Booklet." RICHES of Central Florida.


“PACE 320 Combined-Cycle Power Plant Diagram,” RICHES, accessed May 20, 2024,