Run-of-the-river Hydroelectricity - Revision history

Katharina Wiedemann at 17:16, 22 September 2014

2014-09-22T17:16:55Z

Ranisha at 10:57, 18 July 2014

2014-07-18T10:57:15Z

Wiki Gardener: moved Run-of-the-river hydroelectricity to Run-of-the-river Hydroelectricity

2012-12-07T15:59:28Z

moved Run-of-the-river hydroelectricity to Run-of-the-river Hydroelectricity

Wiki Gardener at 15:59, 7 December 2012

2012-12-07T15:59:04Z

Wiki Gardener at 15:57, 7 December 2012

2012-12-07T15:57:48Z

Robert at 12:30, 18 February 2011

2011-02-18T12:30:45Z

Michel andre at 10:21, 2 February 2010

2010-02-02T10:21:40Z

JanS at 12:08, 3 February 2009

2009-02-03T12:08:11Z

Hellpap: New page: '''Run-of-the-river hydroelectricity''' is a type of hydroelectric generation whereby the natural flow and elevation drop of a river are used to generate electricity. Power stations of thi...

2008-07-24T08:51:37Z

New page: '''Run-of-the-river hydroelectricity''' is a type of hydroelectric generation whereby the natural flow and elevation drop of a river are used to generate electricity. Power stations of thi...

New page

'''Run-of-the-river hydroelectricity''' is a type of hydroelectric generation whereby the natural flow and elevation drop of a river are used to generate electricity. Power stations of this type are installed on rivers with a consistent and steady flow, either natural or through the use of a large reservoir at the head of the river.

== Concept ==

Power stations on rivers with great seasonal fluctuations require a large reservoir in order to operate during the dry season, resulting in the necessity to impound and flood large tracts of land. In contrast, run of river projects do not require impoundment of water. Instead, some of the water is diverted from a river, and sent into a pipe called a penstock. The penstock feeds the water downhill to the power station's turbines. Due to the difference in altitude, potential energy from the water up river is transformed into kinetic energy while it flows downriver through the penstock, giving it the speed required to spin the turbines that in turn transform this kinetic energy into electrical energy. The water leaves the generating station and is returned to the river without altering the existing flow or water levels.

Most run-of-river power plants will have a dam across the full width of the river in order to utilize all the river's water for electricity generation. Such installations will have a reservoir behind the dam but since flooding is minimal, they can be considered "run-of-river".

Another type of run-of-river power plants is floating in the water.

=== Advantages ===

Flooding the upper part of the river is not required as it doesn't need a reservoir. As a result, people living at or near the river don't need to be relocated and natural habitats are preserved, reducing the environmental impact as compared to reservoirs.

=== Disadvantages and Problems ===

The output and consequently the cost efficiency are highly dependent on natural run-off. Spring melts will create a lot of energy while dry seasons will create relatively little energy. Though this disadvantage is negated if a site with consistent flow is chosen. It has little or no capacity for energy storage and can't co-ordinate the output of electricity generation to match consumer demand.

Major challenges of floating power plants are the anchoring, the cable routing without affecting the shipping traffic, floodwaters with heavy flotsam (tree trunks).

@@ Line 19: / Line 19: @@
 Flooding the upper part of the river is not required as it doesn't need a reservoir. As a result, people living at or near the river don't need to be relocated and natural habitats are preserved, reducing the environmental impact as compared to reservoirs.
 == Disadvantages and Problems<br/> ==
@@ Line 27: / Line 29: @@
 <br/>
 = References<br/> =
-*Original source Wikipedia: [http://en.wikipedia.org/wiki/Run-of-the-river_hydroelectricity en.wikipedia.org]
+*Original source Wikipedia: [http://en.wikipedia.org/wiki/Run-of-the-river_hydroelectricity wikipedia.org]
-*[[Portal:Hydro|Portal:Hydro]]
-*[[Control_Equipment_-_Hydropower|Control Equipment - Hydropower]]
+<references />
-*[[Hydro_-_FAQ|Hydro - FAQ]]<br/>
 [[Category:Electricity]]

@@ Line 1: / Line 1: @@
 = Overview<br/> =
-'''Run-of-the-river hydroelectricity''' is a type of hydroelectric generation whereby the natural flow and elevation drop of a river are used to generate electricity. Power stations of this type are installed on rivers with a consistent and steady flow, either natural or through the use of a large reservoir at the head of the river.
+'''Run-of-the-river [[Hydro|hydroelectricity]]''' is a type of hydroelectric generation whereby the natural flow and elevation drop of a river are used to generate electricity. Power stations of this type are installed on rivers with a consistent and steady flow, either natural or through the use of a large reservoir at the head of the river.
-−
 = Concept<br/> =
@@ Line 13: / Line 14: @@
 Another type of run-of-river power plants is floating in the water.
+<br/>
 == Advantages<br/> ==
@@ Line 21: / Line 22: @@
 == Disadvantages and Problems<br/> ==
-The output and consequently the cost efficiency are&nbsp;highly dependent on natural run-off. Spring melts will create a lot of energy while dry seasons will create relatively little energy. Though this disadvantage is negated if a site with consistent flow is chosen. It has little or no capacity for&nbsp;energy storage and can't co-ordinate the output of electricity generation to match consumer demand.
+The output and consequently the cost efficiency are highly dependent on natural run-off. Spring melts will create a lot of energy while dry seasons will create relatively little energy. Though this disadvantage is negated if a site with consistent flow is chosen. It has little or no capacity for energy storage and can't co-ordinate the output of electricity generation to match consumer demand.
-−
-Major challenges of floating power plants are&nbsp;the anchoring, the cable routing without affecting the shipping traffic, floodwaters with heavy flotsam (tree trunks).
 = References<br/> =
 *Original source Wikipedia: [http://en.wikipedia.org/wiki/Run-of-the-river_hydroelectricity en.wikipedia.org]
 [[Category:Hydro]]

← Older revision		Revision as of 15:59, 7 December 2012
Line 1:		Line 1:
−	Overview<br/> =	+	= Overview<br/> =

	'''Run-of-the-river hydroelectricity''' is a type of hydroelectric generation whereby the natural flow and elevation drop of a river are used to generate electricity. Power stations of this type are installed on rivers with a consistent and steady flow, either natural or through the use of a large reservoir at the head of the river.		'''Run-of-the-river hydroelectricity''' is a type of hydroelectric generation whereby the natural flow and elevation drop of a river are used to generate electricity. Power stations of this type are installed on rivers with a consistent and steady flow, either natural or through the use of a large reservoir at the head of the river.

@@ Line 17: / Line 17: @@
 The output and consequently the cost efficiency are&nbsp;highly dependent on natural run-off. Spring melts will create a lot of energy while dry seasons will create relatively little energy. Though this disadvantage is negated if a site with consistent flow is chosen. It has little or no capacity for&nbsp;energy storage and can't co-ordinate the output of electricity generation to match consumer demand.
 Major challenges of floating power plants are&nbsp;the anchoring, the cable routing without affecting the shipping traffic, floodwaters with heavy flotsam (tree trunks).
 [[Category:Hydro]]

← Older revision		Revision as of 10:21, 2 February 2010
Line 19:		Line 19:
	Major challenges of floating power plants are the anchoring, the cable routing without affecting the shipping traffic, floodwaters with heavy flotsam (tree trunks).		Major challenges of floating power plants are the anchoring, the cable routing without affecting the shipping traffic, floodwaters with heavy flotsam (tree trunks).

−	[[Category: Hydro]]	+	[[Category:Hydro]]

@@ Line 7: / Line 7: @@
 Most run-of-river power plants will have a dam across the full width of the river in order to utilize all the river's water for electricity generation. Such installations will have a reservoir behind the dam but since flooding is minimal, they can be considered "run-of-river".
 Another type of run-of-river power plants is floating in the water.
 === Advantages  ===
@@ Line 13: / Line 13: @@
 Flooding the upper part of the river is not required as it doesn't need a reservoir. As a result, people living at or near the river don't need to be relocated and natural habitats are preserved, reducing the environmental impact as compared to reservoirs.
-=== Disadvantages and Problems ===
+=== Disadvantages and Problems  ===
 The output and consequently the cost efficiency are&nbsp;highly dependent on natural run-off. Spring melts will create a lot of energy while dry seasons will create relatively little energy. Though this disadvantage is negated if a site with consistent flow is chosen. It has little or no capacity for&nbsp;energy storage and can't co-ordinate the output of electricity generation to match consumer demand.
 Major challenges of floating power plants are&nbsp;the anchoring, the cable routing without affecting the shipping traffic, floodwaters with heavy flotsam (tree trunks).