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Jmdonev at 19:55, 11 May 2018

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[[File:Chief_Joseph_Dam.jpg|360px|thumb|right|Figure 1. [[Run-of-the-river systems]] like the one shown above tend to have larger flow rates than hydro dams that use [[reservoir]]s.<ref>Wikimedia Commons. (August 24, 2015). ''Chief Joseph Dam'' [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/6/6c/Chief_Joseph_Dam.jpg</ref>]]
<onlyinclude>'''Hydroelectric discharge''', also referred to as '''flow rate''', is usually represented by ''Q'', is the [[volume]] of [[water]] that pass through a [[hydroelectric facility|hydroelectric]] [[power plant]] per unit time (like a second).<ref name=boyle>G. Boyle. ''Renewable Energy: Power for a Sustainable Future, 2nd ed. Oxford'', UK: Oxford University Press, 2004.</ref> Thus, the unit for flow rate is meters cubed per second (<math>m^3/s</math>).</onlyinclude> Understanding the flow rate of the stream or river used for a [[hydropower]] generation plant is vital to predict the available amount of hydropower. This, along with the [[head drop]] of the stream or river are the two values necessary to calculate the available [[power]].<ref name="RE1">REUK. (August 24, 2015). ''Calculation of Hydro Power'' [Online]. Available: http://www.reuk.co.uk/Calculation-of-Hydro-Power.htm</ref>

Flow rate simply represents the [[volume]] of water that can be captured and then re-directed by a dam to flow across a [[turbine]] [[generator]] to move it and [[electricity generation|generate electricity]]. The larger the flow - meaning the larger flow rate value—the more [[energy]] is available to be converted to [[electricity]].<ref name="RE1"/>

Both a high flow rate and a high head aren't necessary for a hydroelectric power plant to be viable.<ref name="RE1"/> If there is a high flow rate, the head doesn't need to be as high as the sheer amount of water flowing through the dam is sufficient to move turbines. Conversely, if the water is falling from a large height it isn't as important for a large volume of water to flow to the turbines.

==References==
{{reflist}}[[Category:Uploaded]]

Hydroelectric discharge - Revision history

Jmdonev: 1 revision imported

Jmdonev at 19:55, 11 May 2018