Talk:Hydropower

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Help with this template Comments: edit – history – watch – refresh Why was this info deleted? Impoundment Hydropower Uses a dam to store water. Water may be released either to meet changing electricity needs or to maintain a constant water level. Bonneville Lock and Dam for hydropower production. Located in the Columbia River Gorge National Scenic Area 40 miles east of Portland, Ore., and Vancouver, Wash., Bonneville Lock and Dam spans the Columbia River and links the two states. Run-of-River Projects Utilize the flow of water within the natural range of the river. Canada Opens New Run-of-River Hydro Facility The Upper Mamquam Hydroelectric Plant near Squamish, developed by Canadian Hydro Developers, is expected to deliver 98,000 MWh per year. Microhydropower produce 100 kilowatts (kW) or less. Microhydropower systems usually generate up to 100 kilowatts (kW) of electricity. Most of the hydropower systems used by homeowners and small business. Diversion Hydropower Channels a portion of the river through a canal or penstock. Tazimina River Hydroelectric project Tazimina River is located about one mile north of Roadhouse Mountain and flows into Six Mile Lake, near the village of Nondalton AK. Pumped storage Pumps water from a lower reservoir to an upper reservoir at times when demand for electricity is low. During periods of high electrical demand, the water is released back to the lower reservoir to generate electricity. Tianhuangping Pumped-Storage Hydro Plant, China East China Electric Power's Tianhuangping pumped storage hydroelectric project is the biggest of its type in Asia. It provides valuable cover for demand surges in the central coastal region, including high growth Shanghai. It is located in Anji County in Zhejiang, about 175km from Shanghai, and has a total installed capacity of 1,800MW. Futhermore Most of the edits are biased towards negitive effects of hydro and no acknowledgement of any forms of neutrality of the article. {{editprotected}} I have no idea what is going on here. Hydropower is not protected, and thus, needs no editprotected request. Cheers. --MZMcBride 03:09, 14 August 2007 (UTC)

This article has been reviewed by the Version 1.0 Editorial Team.

Additional information: B This article has been rated as B-Class on the assessment scale. ??? This article has not yet received an importance rating on the assessment scale. This article is a vital article. The following comments have been left for this page: Why was this info deleted? Impoundment Hydropower Uses a dam to store water. Water may be released either to meet changing electricity needs or to maintain a constant water level. Bonneville Lock and Dam for hydropower production. Located in the Columbia River Gorge National Scenic Area 40 miles east of Portland, Ore., and Vancouver, Wash., Bonneville Lock and Dam spans the Columbia River and links the two states. Run-of-River Projects Utilize the flow of water within the natural range of the river. Canada Opens New Run-of-River Hydro Facility The Upper Mamquam Hydroelectric Plant near Squamish, developed by Canadian Hydro Developers, is expected to deliver 98,000 MWh per year. Microhydropower produce 100 kilowatts (kW) or less. Microhydropower systems usually generate up to 100 kilowatts (kW) of electricity. Most of the hydropower systems used by homeowners and small business. Diversion Hydropower Channels a portion of the river through a canal or penstock. Tazimina River Hydroelectric project Tazimina River is located about one mile north of Roadhouse Mountain and flows into Six Mile Lake, near the village of Nondalton AK. Pumped storage Pumps water from a lower reservoir to an upper reservoir at times when demand for electricity is low. During periods of high electrical demand, the water is released back to the lower reservoir to generate electricity. Tianhuangping Pumped-Storage Hydro Plant, China East China Electric Power's Tianhuangping pumped storage hydroelectric project is the biggest of its type in Asia. It provides valuable cover for demand surges in the central coastal region, including high growth Shanghai. It is located in Anji County in Zhejiang, about 175km from Shanghai, and has a total installed capacity of 1,800MW. Futhermore Most of the edits are biased towards negitive effects of hydro and no acknowledgement of any forms of neutrality of the article. {{editprotected}} I have no idea what is going on here. Hydropower is not protected, and thus, needs no editprotected request. Cheers. --MZMcBride 03:09, 14 August 2007 (UTC) (edit)

--Alex 18:14, 31 July 2006 (UTC)

Contents 1 Physics Section 2 This page and Hydroelectricity 3 Newbie question 4 Another question 5 Vandalism - semiprotection 6 Timestamps for Statistics 7 Cleanup tag 8 Feedback 9 Vandalism 10 Dams produce methane? 11 Hydropower plant vs hydroelectric power plant 12 Hydropower v hydraulic 13 History 14 Renewable energy 15 Project Proposal for Establish Mini Hydro Power Plant- Sri Lanka.

[edit] Physics Section

I think there should be an example of how many kg of water raised 100 meters in earth's gravity needed to generate 1kwh so that people can get an idea of the vast quantities of water storage needed, shall I add it in? 66.220.96.219 01:58, 10 February 2006 (UTC)

I think physics is a bad name for this section, but I couldn't come up with anything better offhand. Also, I think V dot is kind of a silly way of saying volume flux, but I used this because that's what is used in the water turbine article. Would appreciate comments --dikaiopolis

I agree, physics is a bad name. How about Theory of operation or something. As far as V dot, I added the formula to Water turbine. If you prefer something else, like Q or whatever, no disagreement here. We should keep them both the same. Duk 22:56, 11 Nov 2004 (UTC)

[edit] This page and Hydroelectricity

What is the difference between hydropower and hydroelectricity? Why do we have both? Should they be merged? --Andrew 05:15, Feb 3, 2005 (UTC)

Hydropower is a general term relating to the means by which power (energy - the rate at which work is done) is extracted from falling water. The term does not imply any particular form of energy, and certainly not only electricity generation. Hydropower applications also include waterwheels powering millstones, and water powered pumps, for example. Hydoelectricity on the other hand relates specifically to the technology for generating electricity.

In the context of these articles, the focus of the hydropower is the physics of extracting work from falling water. In contrast hydoelectricity focusses on the engineering technology for generating electricity.

To me these are quite distinct. If the distinction is not clear, perhaps each article should cross-reference the other with a description to help clarify. Perhaps the lead sentence in each should draw the distinction?

Sendervictorius 09:24, 5 Feb 2005 (UTC)

I feel this should be merged.Canadianshoper 03:41, 14 June 2006 (UTC)

[edit] Newbie question

Moved here from the article page:

can some one help me fing out about water power?? how it works? you can email me on : misticme(a)studentfreestuff.com thanks!

[edit] Another question

What are the downsides of of hydro electric?

Speciffically in the scottish context of using Loch katrine, which provides drinking water to glasgow, to provide power from the water flow? —Preceding unsigned comment added by 86.154.186.23 (talk) 18:27, 11 January 2008 (UTC)

[edit] Vandalism - semiprotection

I've semiprotected the page due to long term vandalism. For a long time most edits have been vandalism or reverts.--Duk 16:06, 1 June 2006 (UTC)

[edit] Timestamps for Statistics

Water power is becoming more and more important. The total capacity of the world's hydro plants is growing. Therefore, each number telling about capacity and percentage should get a date and, ideally, a source. I'm sorry I can't do that (don't know where to get reliable statistics), but I want to encourage anyone writing stuff like "Hydroelectric power now supplies about 715,000 MWe or 19% of world electricity." to give information of where he found these numbers, and the date.--Andreas, 15. June 06

[edit] Cleanup tag

Ehm, isn't it time to remove the cleanup tag on top of the article? It has been sitting there since April and the article looks pretty good to me. But since I am not an active editor of this page I leave it to you guys to decide. --David Göthberg 18:45, 31 July 2006 (UTC)

[edit] Feedback

I would use Hydro-electricity because it causes no pollution and can also be used as a recreation area. It looks a lot prettier than factories and windmills. Because of that, it is really expensive, but not as expensive as a nuclear factory. Effects include: no polluting water and the air. It can enhance micro-organisms in the water.

219.77.81.181 10:43, 28 November 2006 (UTC)

[edit] Vandalism

The page appears to have been vandalized again. I'll try to roll it back.

--67.149.80.17 21:16, 3 February 2007 (UTC)

Or, someone took care of the issue before I could pitch in to help.

--67.149.80.17 21:18, 3 February 2007 (UTC)

[edit] Dams produce methane?

Recent reports have linked reservoir construction to methane, formed by decaying submerged plants growing in the dried parts of the basin during drought. Methane is a greenhouse gas.

I'll remove that bit. There is no reference to the claim, and it seems irrelevant. Even if there is a cycle of growing/decaying plants, I'm certain it would be several orders of magnitude from the environmental impact of fossil fuels, which is really what the greenhouse discussion is about.

I would also assume that any methane released is directly related to CO2 absorbed by growing plants, so I could just reverse the sentence and claim that dams building absorbs CO2 from the air.

In short, I'm missing a reference on how such a cyclical process can contribute to the greenhouse effect.

06:03, 9 February 2007 (UTC)

[edit] Hydropower plant vs hydroelectric power plant

In the section "#This page and Hydroelectricity" above the difference is discussed/explained between Hydropower and hydroelectric power. However I strongly suspect that the terms Hydropower plant(hydraulic power plant/hydropower station/hydraulic power station) and hydroelectric power plant are essentially synonyms. At least that's what I see in first several references. I guess it is because the main term here is power station/power plant, which is always about electricity. Am I correct?

This question appeared to me after I read the wikipedia article about the Astaldi company. It says about its products: "hydraulic and hydroelectric power stations". I seemed suspicious to me and I looked into the orinas source. The original says: "hydraulic and hydroelectric projects", which makes more sense to me.

Please advise how to improve the articles in question, thank you. Mukadderat 18:40, 11 September 2007 (UTC)

An example of a hydraulic project would be a municipal water supply. Water power not used to generate electricity is more common in a historical context, for example using a water wheel to turn the machines in 19th century industry. Another application is using water power as a pump. Question, should the renewable energy template {{renewable energy sources}} use hydropower as a link or hydroelectricity, as it does currently? 199.125.109.124 03:22, 22 September 2007 (UTC)

Direct mechanical use of hydropower is not confined to the 19th century as many 20th century paper mills used hydro turbines to power paper machinery such as grinders. --Wtshymanski (talk) 03:26, 14 January 2008 (UTC)

[edit] Hydropower v hydraulic

While I accept that the two terms are cognate, both being derived from the greek hudor (Υδωρ - water), are they in fact the same? I associate the term hydraulic with the transmission of energy donw a pipe. The application of pressure at one end results in that pressure doing work at the other. The fluid used is often today not water, but an oil based fluid (as in brake fluid in cars). That is quite different from the harnessing of the potential or kinetic energy of water to generate electricity or power machinery. Peterkingiron (talk) 00:48, 14 January 2008 (UTC)

I have a textbook called "Hydraulics:" that talks about open channel flow, as well as flow in pipes and in turbines. the department at the consulting firm that studies water flow in rivers and tells us how much energy could be extracted is called the "hydraulics" department. "Hydraulics" covers more physical principles then the flow through pipes. --Wtshymanski (talk) 03:19, 14 January 2008 (UTC)

[edit] History

I have added a sentence to include hushing as another way in which the power of moving water was exploited in the Roman period and later. It survives as a method of hydraulic mining. Peterlewis (talk) 16:01, 11 April 2008 (UTC)

[edit] Renewable energy

Since Bush cut hydro from the list of renewables, hydro does not get the same kinds of incentives as do non-hydro renewables. Policies to Promote Non-hydro Renewable Energy in the United States and Selected Countries. Should this issue be discussed in the hydropower article? Kgrr (talk) 15:10, 22 April 2008 (UTC)

This seems to be an issue whose scope is limited to USA. It should therefore be dealt with in an article with that scope, not one looking at the subject generally. Peterkingiron (talk) 21:31, 23 April 2008 (UTC)

[edit] Project Proposal for Establish Mini Hydro Power Plant- Sri Lanka.

Dear Sir/ Madam,

We J Lead International Co., in Sri Lanka . We are mainly dealing with indenting business of Import & Export with China. as new concept we are interesting to establish the Mini Hydro Power Plants / Projects in suitable areas of Sri Lanka. So, according to our evaluation & Researching, There is bid vacuumed of Electricity power for National Grid.

We would like to invite to the any Interesting parties who wish to joint venture with us for the Produce the Hydro Electricity Power and supply to National Grid very profitable.

All planing , Development , Reserching and Technology is proposed by the Investment party in Excellency. we involving as a Share party who providing Management, Inspection & Administrative activities.

We are much appreciating your deep concerning for above our proposal & waiting your comments regarding that.

Thanking You, With Best wishes.

J.S.Witharana Managing Director

J Lead International Co., No. 12 , 3rd Lane , Subadrarama Rd, Nugegoda, Sri Lanka.

Tel :- 0094 773507840 , 0094 112820707] Fax :- 0094 112769171 E-mail :-jleadint@yahoo.com , info@jleadint.com —Preceding unsigned comment added by 124.43.194.4 (talk) 05:39, 21 May 2008 (UTC)

• Comment - This is not a proposal for a WP project, but apparently an advertisement for investors (WP:ADVERT. As such it appears to break legal rules on company prospectuses in UK and probably other jurisdictions. Should this not be removed? Peterkingiron (talk) 19:50, 22 May 2008 (UTC)