Westinghouse also had to deal with an AC rival, the Thomson-Houston Electric Company who had built 22 power stations by the end of 1887 and by 1889 had bought out another competitor, the Brush Electric Company.
Westinghouse se také musel vypořádat se soupeřem na poli střídavého proudu, společností Thomson-Houston Electric Company, která do konce roku 1887 postavila 22 elektráren a roku 1889 koupila dalšího konkurenta, Brush Electric Company.