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Run-of-river hydroelectricity (ROR) or run-of-the-river hydroelectricity is a type of hydroelectric generation plant whereby little or no water storage is provided. Run-of-the-river power plants may have no water storage at all or a limited amount of storage, in which case the storage reservoir is referred to as pondage .
The following page lists hydroelectric power stations that generate power using the run-of-the-river method. This list includes most power stations that are larger than 100 MW in maximum net capacity, which are currently operational or under construction.
The Colley Wobbles Power Station is a hydroelectric power facility located approximately 30 km east of Dutywa in the Amathole District Municipality of the Eastern Cape of South Africa. Water is drawn from behind a dam on the Mbhashe River and diverted through a penstock to the Colley Wobbles Power Station. The power station discharges into the ...
The scheme utilizes the water supplied to South Africa by the Lesotho Highlands Water Project, which releases water into the As River via a tunnel outlet near the town of Clarens. South Africa has limited potential for hydro energy due to low average annual rainfall making projects like Bethlehem Hydro rare. The project was identified in 1999 ...
The Steenbras Power Station, also Steenbras Hydro Pump Station, is a 180 MW pumped-storage hydroelectric power station commissioned in 1979 in South Africa. The power station sits between the Steenbras Upper Dam and a small lower reservoir on the mountainside below. [ 1 ]
Around 81% of South Africa's energy needs are directly derived from coal [9] and 81% of all coal consumed domestically goes towards electricity production. [10] Historically this has given South Africa access to cheap electricity, but it is also one of the leading reasons that the country is in the top 20 list of carbon dioxide emitting countries.
The lower Bramhoek Dam on Bramhoek stream, a tributary of the Klip River, was completed in November 2011. It is a 41 m (135 ft) tall roller-compacted concrete gravity dam . It has a 26,300,000 m 3 (21,300 acre⋅ft) water storage capacity of which 21,900,000 m 3 (17,800 acre⋅ft) can be pumped up to the upper reservoir.
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. [ 2 ] 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.