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  2. Solar-powered pump - Wikipedia

    en.wikipedia.org/wiki/Solar-powered_pump

    A windpump replaced by a solar-powered pump at a water hole in the Augrabies Falls National Park. [Notes 1] This solar water pump up to 3.7 kW is useful for farmers.Solar-powered pumps run on electricity generated by photovoltaic (PV) panels or the radiated thermal energy available from collected sunlight as opposed to grid electricity- or diesel-run water pumps. [1]

  3. Pumped-storage hydroelectricity - Wikipedia

    en.wikipedia.org/wiki/Pumped-storage...

    Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. A PSH system stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off ...

  4. Hydraulic ram - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_ram

    These ratios assume 100% energy efficiency. Actual water delivered will be further reduced by the energy efficiency factor. In the above example, if the energy efficiency is 70%, the water delivered will be 70% of 20%, i.e. 14%. Assuming a 2-to-1 supply-head-to-delivery-head ratio and 70% efficiency, the delivered water would be 70% of 50%, i.e ...

  5. Hydroelectricity - Wikipedia

    en.wikipedia.org/wiki/Hydroelectricity

    Hydroelectric projects can be disruptive to surrounding aquatic ecosystems both upstream and downstream of the plant site. Generation of hydroelectric power changes the downstream river environment. Water exiting a turbine usually contains very little suspended sediment, which can lead to scouring of river beds and loss of riverbanks. [48]

  6. List of pumped-storage hydroelectric power stations - Wikipedia

    en.wikipedia.org/wiki/List_of_pumped-storage...

    The upper reservoir of the Markersbach PSPS Dam of Siah Bishe Pumped Storage Power Plant The Tumut-3 Hydroelectric Power Station The upper Minamiaiki Dam of the Kannagawa Hydropower Plant Castaic Power Plant Main pump-generator hall of Vianden Pumped Storage Plant Upper reservoir for Coo-Trois-Ponts PSPS Goldisthal Pumped Storage Station Mingtan Dam

  7. Okinawa Yanbaru Seawater Pumped Storage Power Station

    en.wikipedia.org/wiki/Okinawa_Yanbaru_Seawater...

    Its pipelines and pump turbine were installed underground. [2] Its maximum output was approximately 2.1% of the maximum power demand in the Okinawa Island recorded on August 3, 2009. [4] The upper reservoir, artificially excavated, was approximately 600 metres (2,000 ft) away from the shoreline and approximately 150 metres (490 ft) above sea ...

  8. Purulia Pumped Storage Power Station - Wikipedia

    en.wikipedia.org/wiki/Purulia_Pumped_Storage...

    The project was planned to be commissioned in 2002-03, but litigations during tender stage and difficulties in getting clearance for forested land caused delays to the project. [6] Japan International Cooperation Agency (JICA) provided ₹ 2,272 crore (equivalent to ₹ 33 billion or US$380 million in 2023) of loan assistant for the project.

  9. Ingula Pumped Storage Scheme - Wikipedia

    en.wikipedia.org/wiki/Ingula_Pumped_Storage_Scheme

    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.