Greensboro is a city in the U.S. state of North Carolina. It is the 3rd-most populous city in North Carolina, the 68th-most populous city in the United States, and the county seat and largest city in Guilford County and the surrounding Piedmont Triad metropolitan region. As of the 2010 census, the city population was 269,666, and in 2015 the estimated population was 285,342. Three major interstate highways in the Piedmont region of central North Carolina were built to intersect at this city. In
In 1904, the present plant was built. Construction was preceded by replacing Triphammer Dam slightly west of it original location in 1896. Water is supplied to the plant from Beebe Lake by a five-foot diameter underground penstock, 1700 feet long. The existing intake dates to 1953 and was upgraded in 1981.n 1904, the present plant was built. Construction was preceded by replacing Triphammer Dam slightly west of it original location in 1896. Water is supplied to the plant from Beebe Lake by a five-foot diameter underground penstock, 1700 feet long. The existing intake dates to 1953 and was upgraded in 1981.
Dams block the flow of a river or stream and create a lake or reservoir behind them, which acts as a source of stored energy (a battery is another example of a reservoir of stored energy). The dam raises the surface water up to a great height, giving it potential energy, the potential to do work.Water flows from the reservoir and through a dam by way of a special intake gate called a penstock. It's kind of like one of those water tunnels you slide through at a water park in the summer. Water flow rate is in cubic meters per second (m 3 /s). 2  Acceleration due to gravity is 9.81 meters per second squared (m/s 2). 3  Height is in meters (m). 4  Coefficient of efficiency ranges from 0 to 1, with modern power plants having the highest efficiency.