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The PlayPump water system is a playground merry-go-round attached to a water pump. The spinning motion pumps underground water into a 2,500-liter tank raised seven meters above ground. The water in the tank is easily dispensed by a tap valve. According to the manufacturer the pump can raise up to 1400 liters of water per hour from a depth of 40 ...
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.
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. A 2 km (1.2 mi) long headrace tunnel connects the upper reservoir to the underground power station which houses 4 x 333 megawatts (447,000 hp) reversible Francis pump-turbines.
The Palmiet Pumped Storage Scheme consists of two 200 megawatts (270,000 hp) turbine units located 2 kilometres (1.2 mi) upstream of the Kogelberg Dam on the Palmiet River near Cape Town, South Africa. [2] The pumped-storage hydroelectricity plant is capable of responding to a surge in peak power demand in minutes. [3]
Windpumps are used extensively in Southern Africa, Australia, and on farms and ranches in the central plains and Southwest of the United States. In South Africa and Namibia thousands of windpumps are still operating. These are mostly used to provide water for human use as well as drinking water for large sheep stocks.
The Sterkfontein Dam, located just outside the town of Harrismith, in the Free State, province of South Africa, is part of the Tugela-Vaal Water Project and the Drakensberg Pumped Storage Scheme, and located on the Nuwejaarspruit, a tributary of the Wilge River in the upper catchment area of the Vaal River. [2]