 The Commission favored electricity, but could not recommend a solution to Cataract.In 1892, George Forbes was hired as a technical consultant and in May 1893 he convinced the company to build a hydroelectric system based on polyphase alternating current.Westinghouse Electric was subcontracted to build 25 Hz AC generators, based on the work of Nikola Tesla and Benjamin G. Lamme, while the I. P. Morris Company of Philadelphia built the turbines based on the design of the Swiss company Faesch and Piccard.