501G Design Features

Dublin Core


501G Design Features

Alternative Title

501G Design Features


Energy--United States


The 250MW-class Westinghouse 501G (W501G) gas turbine was introduced in 1994 as the largest and most efficient (38.5% LHV) 60Hz gas turbine in the world. The W501G also had an introductory combined-cycle efficiency of 58 percent.

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: Gas Turbine World, November-December 1994: Private Collection of Harry L. Jaeger.


Date Created

ca. 1994


Jaeger, Harry L.

Is Format Of

Digital reproduction of original diagram: Gas Turbine World, November-December 1994.

Is Part Of

Westinghouse Electric Collection, RICHES of Central Florida.




1.42 MB


1 diagram




Still Image


Westinghouse Power Generation Business Unit, Orlando, Florida

Accrual Method



History Teacher


Originally published by Gas Turbine World.

Rights Holder

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


Jaeger, Harry L.
Cepero, Laura

Digital Collection

External Reference

"History." Westinghouse Nuclear. http://www.westinghousenuclear.com/About/History.
"Westinghouse Power Generation Booklet." RICHES of Central Florida. https://richesmi.cah.ucf.edu/omeka2/items/show/6422.



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  1. WE00117.jpg