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  2. 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 ...

  3. Pumping station - Wikipedia

    en.wikipedia.org/wiki/Pumping_station

    Reinstalling the pumps simply reverses this process with the pump being remounted on the guide rails and lowered onto the duckfoot where the weight of the pump reseals it. As the motors are sealed and weather is not a concern, no above ground structures are required, excepting a small kiosk to contain the electrical switchgear and control systems.

  4. Pumped-storage hydroelectricity - Wikipedia

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

    Electricity is created when water is let in via a reversible turbine integrated into the sphere. During off-peak hours, the turbine changes direction and pumps the water out again, using "surplus" electricity from the grid. The quantity of power created when water is let in, grows proportionally to the height of the column of water above the ...

  5. Pumpjack - Wikipedia

    en.wikipedia.org/wiki/Pumpjack

    In the early days, pumpjacks worked by rod lines running horizontally above the ground to a wheel on a rotating eccentric in a mechanism known as a central power. [3] The central power, which might operate a dozen or more pumpjacks, would be powered by a steam or internal combustion engine or by an electric motor.

  6. Swimming pool - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool

    This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. Artificial water basin for swimming For other uses, see Swimming pool (disambiguation). Backyard swimming pool Olympic-size swimming pool and starting blocks at Melbourne Sports and Aquatic Centre used for the 2006 Commonwealth Games in Melbourne, Australia A swimming pool, swimming ...

  7. Salt water chlorination - Wikipedia

    en.wikipedia.org/wiki/Salt_water_chlorination

    Salt water chlorination is a process that uses dissolved salt (1000–4000 ppm or 1–4 g/L) for the chlorination of swimming pools and hot tubs.The chlorine generator (also known as salt cell, salt generator, salt chlorinator, or SWG) uses electrolysis in the presence of dissolved salt to produce chlorine gas or its dissolved forms, hypochlorous acid and sodium hypochlorite, which are already ...

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