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Water Power (Hydropower): The Power of Falling or Running Water

Geschreven op 11-11-2015 - Erik van Erne. Geplaatst in Energie en Besparing Facebooktwitterredditpinterestlinkedintumblrmail

Hydro PowerHydropower or water power is power derived from the energy of falling water or running water, which may be harnessed for useful purposes.

Since ancient times, hydropower from many kinds of watermills has been used as a renewable energy source for irrigation and the operation of various mechanical devices, such as gristmills, sawmills, textile mills, trip hammers, dock cranes, domestic lifts, and ore mills.

A trompe, which produces compressed air from falling water, is sometimes used to power other machinery at a distance. In the late 19th century, hydropower became a source for generating electricity. The first hydroelectric power plant was built at Niagara Falls in 1879. In 1881, street lamps in the city of Niagara Falls were powered by hydropower.

Since the early 20th century, the term has been used almost exclusively in conjunction with the modern development of hydroelectric power. International institutions such as the World Bank view hydropower as a means for economic development without adding substantial amounts of carbon to the atmosphere, but in some cases dams cause significant social or environmental issues. Source: Wikipedia

See also: The Three Gorges Dam: Duurzame Energie van de Drieklovendam – River Energy Power in St. Lawrence River Canada ! – Mississippi River Power goed voor 1600 MegaWatt ! – De Vergeten Kracht van Nederland: Waterkracht by Erik van Erne – The Largest Dam in The World: The Three Gorges Dam in the Yangtze River

Wave PowerWave power is the transport of energy by ocean surface waves, and the capture of that energy to do useful work – for example, electricity generation, water desalination, or the pumping of water (into reservoirs).

A machine able to exploit wave power is generally known as a wave energy converter (WEC). Wave power is distinct from the diurnal flux of tidal power and the steady gyre of ocean currents. Wave-power generation is not currently a widely employed commercial technology, although there have been attempts to use it since at least 1890.

In 2008, the first experimental wave farm was opened in Portugal, at the Aguçadoura Wave Park. The major competitor of wave power is offshore wind power, with more visual impact. Source: Wikipedia

See also: CETO Wave Power Converter: Zero-Emission Energie en Water – The First Pelamis Wave-Energy Power Plant in The World in Portugal – Wave Energy: Ocean Wave Machine by S.D.E. Energy Tel Aviv, Israël  – Ocean Wave Power: The Wave Hub Connecting Wave Energy Generation Devices – Ocean Wave Power How Wave Energy Works – The Wave Hub: The Biggest Wave Energy Project in The World – Ocean Wave Power: Oyster 1 and Oyster 2 Wave Power Devices How it works – Wave power: how it works

Tidal PowerTidal power, also called tidal energy, is a form of hydropower that converts the energy of tides into useful forms of power, mainly electricity. Although not yet widely used, tidal power has potential for future electricity generation.

Tides are more predictable than wind energy and solar power. Among sources of renewable energy, tidal power has traditionally suffered from relatively high cost and limited availability of sites with sufficiently high tidal ranges or flow velocities, thus constricting its total availability.

However, many recent technological developments and improvements, both in design (e.g. dynamic tidal power, tidal lagoons) and turbine technology (e.g. new axial turbines, cross flow turbines), indicate that the total availability of tidal power may be much higher than previously assumed, and that economic and environmental costs may be brought down to competitive levels. Source: Wikipedia

See also: Tidal power: how it works – Queen Elizabeth goes Green: 1.2 GW Wave and Tidal Power in 2020 – Atlantis Unveils The World’s Largest Tidal Turbine: The AK1000 – A New Principle for Deep Green Tidal Energy by Minesto – Ocean Tidal Energy: Tidal Current 1 MW Turbine and Installation Vessel by Voith – Renewable Energy From the Deep Ocean  – The Pentland Firth in Scotland: The World’s Largest Tidal Power Plant by MeyGen

Earth Power – Solar Power – Wind Power – Water Power

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