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The Drakensberg Pumped Storage Scheme is an energy storage facility built in the South African provinces of Free State and KwaZulu-Natal starting in 1974 and completed by 1981.〔(【引用サイトリンク】title=DRAKENSBERG PUMPED STORAGE SCHEME ) 〕 Four dams are involved in the scheme; the Driekloof Dam (''joined to the Sterkfontein Dam''), the Kilburn Dam, the Woodstock Dam and the Driel Barrage. Electricity generation equipment is located between Driekloof Dam and Kilburn Dam.〔(【引用サイトリンク】title=General Layout of Drakensberg Pumped Storage Scheme )〕 Since the Driekloof Dam/Sterkfontein Dam also forms part of the Tugela-Vaal Water Project some of the water pumped to Driekloof Dam might end up flowing to the Vaal Dam and not be available for return to the Kilburn Dam. The Woodstock Dam and Driel Barrage are used to supply this additional water to Kilburn Dam when required. The scheme provides for up to of electricity storage in the form of of water. The water is pumped to Driekloof during times of low national power consumption (generally over weekends) and released back into Kilburn through four turbine generators in times of high electricity demand.〔 == See also == * Pumped-storage hydroelectricity * List of power stations in South Africa * List of energy storage projects 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Drakensberg Pumped Storage Scheme」の詳細全文を読む スポンサード リンク
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