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Eskom December 09 www. bus- ex. com 67 of a totally integrated chemical plant that uses limestone as feedstock and produces gypsum- an ingredient used in the manufacture of dry walls and ceilings- as a by- product. The first of Kusile's units should come into commercial operation in 2013, and the remaining five will be commissioned at nine- month intervals, the last one coming on line in 2017. When fully up and running, the power station will have an installed nominal capacity of 4,800 megawatts of base load power. The final power station to be constructed in this phase of development is a pumped storage scheme called Ingula, the concept for which dates back to the 1980s. The site for the power station was again chosen carefully from a total of 90 possible locations. The requirements were that it had to have two suitable dams relatively close to each other but at significantly different altitudes, with suitable geology and a readily available water supply. The location eventually chosen was north- east of Van Reenen's Pass on the boundary between Free State and KwaZulu Natal. The Ingula pumped storage scheme consists of two dams with the capacity to carry 22 million cubic metres of water each. The dams are 6.6 kilometres apart, one located higher than the other, and the two will be linked by four underground waterways running through an underground Kendal power station, and contracts have been agreed with Anglo Coal South Africa to supply coal from a new colliery at New Largo, close to the power station. Kusile will be the first power station in South Africa to be fitted with flue gas desulphurisation, which is designed to remove oxides of sulphur ( SOx) from the exhaust flue gases. This state- of- the- art emission reduction technology consists Concor Roads and Earthworks, lead contractor on the Bramhoek Dams Joint Venture and the JV have been awarded the contract to construct the Bramhoek Dam and the Bedford Dam for the Ingula Pumped Storage Scheme. The JV, comprising Concor Roads and Earthworks, WBHO, Edwin Construction and Silver Rock, moved onto site in April 2008. The scheduled completion date for Bramhoek Dam will be March 2010 with its impoundment date being August 2009, while Bedford Dam is scheduled for completion in September 2010. Concor Roads and Earthworks