Here's why AC ultimately prevailed:
- Efficiency over long distances: AC power can be easily stepped up to high voltages for long-distance transmission, minimizing energy loss. This was crucial as power plants were often located far from urban centers.
- Flexibility: AC can be easily transformed to different voltages, making it more versatile for various applications.
- Motors: AC motors, developed by Tesla, were more efficient and reliable than DC motors, especially for industrial applications.
- The 1893 World's Columbian Exposition: Westinghouse won the contract to power the Chicago World's Fair with AC, showcasing its capabilities on a grand scale. This victory helped to solidify AC as the preferred choice for electrical power systems.