Westinghouse is usually referred to as "Westingmouse" by General Electric employees as a slightly derogatory term of endearment. Westinghouse and General Electric were big competitors back in the day.These days, the two companies are much less in direct competition with each other. Much of the equipment manufactured by one company was copied by the other in one form or another but the two pieces of equipment are completely incompatable. For example, GE turbines spin counterclockwise when viewed from the steam admission side. Westinghouse turbines, even though they may be the same size and have the same power generating characteristics as their GE counterparts spin clockwise.

Westinghouse equipment is also referred to as "Circle W" equipment due to Westinghouse's logo.