Thomas Edison (1847 - 1931) is renowned for his invention of the electric light, motor and numerous other products. All these products ran on DC (direct current) power. His company became exceedingly wealthy, selling 200,000 lights in the first 3 years of operation, which resulted in the increase of electric power generation and distribution.
George Westinghouse (1846 - 1914), unlike Edison, had less experience in the electric power industry. Nevertheless, the American engineer, developed a different system for generation and distribution involving alternating current (AC). It should be identified that he bought patent rights of the AC pioneer, Nikola Tesla.