Three Gorges Dam and China Southern Power Grid paid a flat rate of ¥250 per MWh (US$35.7) until July 2, 2008. Since then, the price has varied by province, from ¥228.7–401.8 per MWh. Higher-paying customers, such as Shanghai, receive priority. Nine provinces and two cities consume power from the dam. Power distribution and transmission infrastructure cost about 34.387 billion Yuan. Construction was completed in December 2007, one year ahead of schedule. Power is distributed over multiple 500 kilovolt (kV) transmission lines. Three direct current (DC) lines to the East China Grid carry 7,200 MW: Three Gorges – Shanghai (3,000 MW), HVDC Three Gorges
Xiling Gorge the length of the entire Three Gorges region, is actually a series of four different gorges: Precious Sword; Horse Lung & Ox Liver; Soundless Bell; and Shadow Play Gorges. The Three Gorges Dam was constructed at Sāndòupíng in the middle of the Xiling Gorge. Before the construction of the Three Gorges Dam and Gezhouba Dam, Xiling was known for being the most dangerous of the three gorges to travel through, with frightening whirlpools and strong rapids. Since the construction of the dams, the river's depth has increased from in some areas below the dam, to well over throughout the reservoir's