Hydroelectricity - Revision history

Editor at 18:18, 22 April 2021

2021-04-22T18:18:52Z

← Older revision		Revision as of 18:18, 22 April 2021
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	* Solar photovoltaics		* Solar photovoltaics
	* Solar thermal systems.		* Solar thermal systems.
		+	* Swing bridge.
	* Sustainable development: energy challenge.		* Sustainable development: energy challenge.
	* The Future of Electricity in Domestic Buildings.		* The Future of Electricity in Domestic Buildings.

Designing Buildings at 08:21, 20 November 2020

2020-11-20T08:21:24Z

← Older revision		Revision as of 08:21, 20 November 2020
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	* Zero carbon non-domestic buildings.		* Zero carbon non-domestic buildings.

−	[[Category:Sustainability]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Sustainability]]

Editor at 12:16, 4 April 2019

2019-04-04T12:16:49Z

← Older revision		Revision as of 12:16, 4 April 2019
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	* Marine energy.		* Marine energy.
	* Natural gas.		* Natural gas.
		+	* Not a choice between renewables and nuclear - we need both.
	* Oil - a global perspective.		* Oil - a global perspective.
	* Power generation.		* Power generation.

Editor at 12:33, 7 March 2019

2019-03-07T12:33:57Z

← Older revision		Revision as of 12:33, 7 March 2019
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	The UK Government suggests that ‘The UK currently (2011) generates about 1.5% of its electricity from hydroelectric schemes. Although further large-scale development potential is limited, there is scope for exploiting our remaining small-scale hydro resources in a sustainable way.’ Ref [https://www.gov.uk/harnessing-hydroelectric-power Gov.uk Harnessing hydroelectric power].		The UK Government suggests that ‘The UK currently (2011) generates about 1.5% of its electricity from hydroelectric schemes. Although further large-scale development potential is limited, there is scope for exploiting our remaining small-scale hydro resources in a sustainable way.’ Ref [https://www.gov.uk/harnessing-hydroelectric-power Gov.uk Harnessing hydroelectric power].

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Allowable solutions.		* Allowable solutions.
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	* Tidal lagoon power.		* Tidal lagoon power.
	* Types of fuel.		* Types of fuel.
		+	* Why the UK needs to support emerging tech like energy storage.
	* Wind Energy in the United Kingdom.		* Wind Energy in the United Kingdom.
	* Zero carbon homes.		* Zero carbon homes.

Editor at 16:36, 28 December 2017

2017-12-28T16:36:19Z

← Older revision		Revision as of 16:36, 28 December 2017
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	* Natural gas.		* Natural gas.
	* Oil - a global perspective.		* Oil - a global perspective.
		+	* Power generation.
	* Renewable energy.		* Renewable energy.
	* Renewable heat incentive.		* Renewable heat incentive.

Editor at 13:48, 11 July 2017

2017-07-11T13:48:02Z

← Older revision		Revision as of 13:48, 11 July 2017
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	Hydroelectricity is electricity generated by hydropower, that is, power derived from the kinetic energy of falling or flowing water. It can be generated from streams, lakes and rivers or man-made structures such as dams, lagoons and reservoirs.		Hydroelectricity is electricity generated by hydropower, that is, power derived from the kinetic energy of falling or flowing water. It can be generated from streams, lakes and rivers or man-made structures such as dams, lagoons and reservoirs.

−	Hydroelectricity relies on water, a clean and renewable source of energy. Water that has been used to generate electricity is naturally recycled by the ‘water cycle’ through which water evaporates, forming clouds that then rain on the Earth, restarting the cycle. The technology is well-proven and reliable, there is little use of fuel in generation, and so emissions are low. However, the capital costs are high, it can require inundation of land and so cause loss of habitats, and in some cases, displacement of local populations.	+	Hydroelectricity relies on water, a clean and renewable source of energy. Water that has been used to generate electricity is naturally recycled by the ‘water cycle’ through which water evaporates, forming clouds that then rain on the Earth, restarting the cycle.
		+
		+	The technology is well-proven and reliable, there is little use of fuel in generation, and so emissions are low. However, the capital costs are high, it can require inundation of land and so cause loss of habitats, and in some cases, displacement of local populations.

	Hydropower systems are generally dependent upon precipitation and elevation changes. Large elevation changes and high precipitation levels are necessary to generate substantial quantities of electricity. Generation depends on the gravitational force of flowing water moving downstream. Hydropower can be seen as the conversion of the potential kinetic energy of water at a higher level, falling to yield kinetic energy that drives a turbine, which in turn produces electricity.		Hydropower systems are generally dependent upon precipitation and elevation changes. Large elevation changes and high precipitation levels are necessary to generate substantial quantities of electricity. Generation depends on the gravitational force of flowing water moving downstream. Hydropower can be seen as the conversion of the potential kinetic energy of water at a higher level, falling to yield kinetic energy that drives a turbine, which in turn produces electricity.
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	Once a hydroelectric system has been installed, it can last for 40-50 years, or longer if well maintained. Debris, floods and droughts can potentially cause damage to hydroelectric systems.		Once a hydroelectric system has been installed, it can last for 40-50 years, or longer if well maintained. Debris, floods and droughts can potentially cause damage to hydroelectric systems.

−	China is the largest producer of hydroelectricity, followed by Canada, Brazil, and the United States (Ref Energy Information Administration). According to the [http://water.usgs.gov/edu/wuhy.html U.S. Geological Survey] (USGS), approximately two-thirds of the economically feasible potential remains to be developed. The UK Government suggests that ‘The UK currently (2011) generates about 1.5% of its electricity from hydroelectric schemes. Although further large-scale development potential is limited, there is scope for exploiting our remaining small-scale hydro resources in a sustainable way.’ Ref [https://www.gov.uk/harnessing-hydroelectric-power Gov.uk Harnessing hydroelectric power].	+	China is the largest producer of hydroelectricity, followed by Canada, Brazil, and the United States (Ref Energy Information Administration). According to the [http://water.usgs.gov/edu/wuhy.html U.S. Geological Survey] (USGS), approximately two-thirds of the economically feasible potential remains to be developed.
		+
		+	The UK Government suggests that ‘The UK currently (2011) generates about 1.5% of its electricity from hydroelectric schemes. Although further large-scale development potential is limited, there is scope for exploiting our remaining small-scale hydro resources in a sustainable way.’ Ref [https://www.gov.uk/harnessing-hydroelectric-power Gov.uk Harnessing hydroelectric power].

	= Find out more =		= Find out more =
Line 58:		Line 62:
	* The Future of Electricity in Domestic Buildings.		* The Future of Electricity in Domestic Buildings.
	* Tidal lagoon power.		* Tidal lagoon power.
		+	* Types of fuel.
	* Wind Energy in the United Kingdom.		* Wind Energy in the United Kingdom.
	* Zero carbon homes.		* Zero carbon homes.

Editor at 10:51, 25 October 2016

2016-10-25T10:51:15Z

← Older revision		Revision as of 10:51, 25 October 2016
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	* Geothermal energy.		* Geothermal energy.
	* Ground energy options.		* Ground energy options.
		+	* Hydropower.
	* Large scale solar thermal energy.		* Large scale solar thermal energy.
−	* Marine energy ~~and hydropower~~.	+	* Marine energy.
	* Natural gas.		* Natural gas.
	* Oil - a global perspective.		* Oil - a global perspective.

Editor at 09:55, 23 June 2016

2016-06-23T09:55:56Z

← Older revision		Revision as of 09:55, 23 June 2016
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	* Renewable energy.		* Renewable energy.
	* Renewable heat incentive.		* Renewable heat incentive.
		+	* Shale gas.
	* Solar photovoltaics		* Solar photovoltaics
	* Solar thermal systems.		* Solar thermal systems.

Editor at 14:05, 6 June 2016

2016-06-06T14:05:07Z

← Older revision		Revision as of 14:05, 6 June 2016
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	* Marine energy and hydropower.		* Marine energy and hydropower.
	* Natural gas.		* Natural gas.
		+	* Oil - a global perspective.
	* Renewable energy.		* Renewable energy.
	* Renewable heat incentive.		* Renewable heat incentive.

Editor at 14:30, 27 May 2016

2016-05-27T14:30:03Z

← Older revision		Revision as of 14:30, 27 May 2016
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	* Large scale solar thermal energy.		* Large scale solar thermal energy.
	* Marine energy and hydropower.		* Marine energy and hydropower.
		+	* Natural gas.
	* Renewable energy.		* Renewable energy.
	* Renewable heat incentive.		* Renewable heat incentive.