Aswan Dam the water saved is lost due to evaporation in Lake Nasser, the amount of water available for irrigation still increased by 22 km. Other estimates put evaporation from Lake Nasser at between 10 and 16 cubic km per year. The dam powers twelve generators each rated at , with a total of . Power generation began in 1967. When the High Dam first reached peak output it produced around half of Egypt's production of electric power (about 15 percent by 1998), and it gave most Egyptian villages the use of electricity for the first time. The High Dam has also
Aswan average relative humidity of only 26%, with a maximum mean of 42% during winter and a minimum mean of 16% during summer. The weather of Aswan is extremely clear, bright and sunny year-round, in all seasons, with a low seasonal variation, with almost 4,000 hours of annual sunshine, very close to the maximum theoretical sunshine duration. Aswan is one of the sunniest places on Earth. The highest record temperature was on July 4, 1918, and the lowest record temperature was on January 6, 1989. In 1999, South Valley University was inaugurated and it has three branches; Aswan, Qena and Hurghada.