Chongqing Electric needed extra capacity to meet anticipated heavy power demand for the summer Olympics in Beijing and did not have time to construct new towers. This installation serves more than a half million residents within two districts in Chongqing City, an ancient city with a population of approximately four million located on the Yangtze River in southwest China, within Sichuan Province. Chongqing is in a subtropical region with high humidity and frequently extreme summer heat, and 3M ACCR was chosen in part because of its proven reliability in difficult climates.