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THE Wind Power Thread pt 3 (merged)

Discussions of conventional and alternative energy production technologies.

Re: THE Wind Power Thread pt 2 (merged)

Unread postby Graeme » Fri 07 Feb 2014, 17:44:41

Five tips for picking small wind locations

There are five major approaches to pick a good wind location. The first approach is to use free online wind maps, such as ones offered by small wind associations, airports or the map companies. You will only get general wind information in the area.

The second approach is to use subscription-based online wind reports. For example, you can generate an Osiris 10 wind report for your customer using New Roots Energy by picking Osiris 10 turbine, inputting tower height and your customer’s address. The wind speed is populated and the power production is calculated based on manufacturer verified power curves.

The third approach is to use a comprehensive online wind analysis services. Wind Analytics claims that a recent study from Energy Trust of Oregon found that Wind Analytics is up to eight times more accurate than other wind mapping solutions. It performs site-specific obstruction analysis, recommends turbine location and tower height for a recommended turbine.

The forth approach is to test the real wind speed at customer property using anemometer over a period of time. Some states may offer anemometer loan program.

The fifth approach is to use consulting services including actual site visits. I enjoyed reading a 23-page Wind Turbine Site Assessment Report developed by CS2 Renewable Energy in Illinois for a school project. There are many of such services available in different states.


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Re: THE Wind Power Thread pt 2 (merged)

Unread postby Graeme » Wed 12 Feb 2014, 20:31:00

Wind Power Is Boring; This Isn't

Wind has become so predictable and commonplace that it's hard to imagine where all the U.S. turbines could be hiding -- currently enough to power more than 12 million homes. Fortunately, we don't have to imagine anymore.

Click on the image below to check out a new data visualization by the U.S. Geological Survey (a group of data junkies with a boring name). It's a map of the U.S. with pins dropped on every single known wind farm. Those dots you see? Zoom in using the magnifying glass in the upper left corner and they will explode into more dots. Zoom in further and those dots will become massive wind turbines.


Image

Behold, America's mountains and farmlands, cities and towns in all their renewable wind-powered glory. Not boring.


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Re: THE Wind Power Thread pt 2 (merged)

Unread postby Surf » Sat 15 Feb 2014, 01:42:20

I
have been surfing around looking for a vertical axis residential turbine in the 1 to 2 kWe size range since my spouse and I discussed it earlier this week without much luck, any suggestions?


Rather than looking for vertical axes turbine I think you should ask these questions:
1 how good is your wind resource?
2. How much power will you need from your turbine
3. How tall will the tower need to be for the above turbine. For best performance it is recommended that the turbine be at least 30 feet taller than the tallest nearby tree or building.
4. Will your local building codes all the tower and wind turbine. Typically the answer is no if you live in a city.

You might want to look at these sites:
http://barnardonwind.com/2013/02/23/why-arent-vertical-axis-wind-turbines-more-popular/
"This site explains why you cannot find a lot of information (other than marketing) about vertical axis wind turbines and in the end states:

Testing by the Sandia Lab confirms all of the above in side-by-side tests of VAWTs and HAWTs, finding that VAWTs will produce 15-25% less electricity for the same swept area with likely higher costs. [11]


https://www.awea.org/Issues/Content.aspx?ItemNumber=4638&navItemNumber=727
http://bergey.com/wind-school/residential-wind-energy-systems

The last link is a page on the Bergey.com, a well respected manufacturer of small horizontal axis wind turbins. There site has a lot of good information on it and they could help you answer many of your questions and even install a wind turbine on your property.
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Re: THE Wind Power Thread pt 2 (merged)

Unread postby Graeme » Sat 15 Feb 2014, 16:16:41

AWEA Report Finds That Wind Turbines Save Money

A new white paper report finds that wind energy is keeping electric bills low for American homes and businesses, thanks to plummeting wind energy costs driven by technological improvements. The report was compiled by staff at the American Wind Energy Association and uses publicly available data and more than a dozen studies from government, utility, and other independent sources to explore how wind energy affects consumers’ energy bills.

A major highlight of the report pulls from just-released Department of Energy data showing consumers in the states that use the most wind energy have fared much better than consumers in states that use less wind energy.

American consumers in the top wind energy-producing states have seen their electricity prices actually decrease by 0.37 percent over the last 5 years, while all other states have seen their electricity prices increase by 7.79 percent over that time period. The following chart summarizes how consumers have fared in states that produce more than 7 percent of their electricity from wind (Texas, Wyoming, Oregon, Oklahoma, Idaho, Colorado, Kansas, Minnesota, North Dakota, South Dakota, and Iowa) relative to other states.


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Re: THE Wind Power Thread pt 3 (merged)

Unread postby Graeme » Sun 16 Feb 2014, 16:47:46

Earth Wind Map - beautiful, delicate and - oh so revealing

The Earth Wind Map is an amazing project to visualize global weather conditions carried out by Tokyo based software engineer Cameron Beccario, resulting in a beautifully mesmerising depiction of the earth's winds. Weather data is produced by the Global Forecast System (GFS), operated by the US National Weather Service. Forecasts are produced four times daily and are up-to-date, providing an astonishing picture of our planet and its winds.


In detail, a gentle breeze is shown by a thin strand of green, while strong winds are bright yellow. The strongest currents are bright red.

Users can drag the globe to their desired location and click on the spot they want to find out what the wind speed is.

Users can also zoom in on the currents, which are colour-coded to show the severity of the wind. The detail is quite extraordinary. A region that looks calm at a glance is seen to be rippling with winds on closer inspection, using the mouse wheel to zoom in.


To access the 'Earth Wind Map', click here. Navigation is a matter of exploration.

Watch the video to learn more about how it works:


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Re: THE Wind Power Thread pt 3 (merged)

Unread postby Graeme » Fri 21 Feb 2014, 17:16:17

New research blows away claims that ageing wind farms are a bad investment

Wind turbines can remain productive for up to 25 years, making wind farms a good long-term choice for energy investors, according to new research.

The UK has a target of generating 15 per cent of the nation's energy from renewable resources such as wind farms by 2020. There are currently 4,246 individual wind turbines in the UK across 531 wind farms, generating 7.5 per cent of the nation's electricity.

There has been some debate about whether wind turbines have a more limited shelf-life than other energy technologies. A previous study used a statistical model to estimate that electricity output from wind turbines declines by a third after only ten years of operation. Some opponents of wind power have argued that ageing turbine technology could need replacing en masse after as little as ten years, which would make it an unattractive option in economic terms.

In a new study, researchers from Imperial College Business School carried out a comprehensive nationwide analysis of the UK fleet of wind turbines, using local wind speed data from NASA. They showed that the turbines will last their full life of about 25 years before they need to be upgraded.


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Re: THE Wind Power Thread pt 3 (merged)

Unread postby yellowcanoe » Fri 21 Feb 2014, 17:46:23

Hydro electric generation equipment can last for many decades so I don't see any reason why we would not be able to build wind turbines with a long life. Wind turbines have gotten a lot bigger since the early wind farms so it may make sense to replace small turbines with new models. I think we are reaching the point of diminishing returns in regards to turbine size so all wind turbines built now should be designed to have a long life. It is very much in the interest of wind farm developers to build turbines with a long life as it should give them a better return on their investment in the long run.
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Re: THE Wind Power Thread pt 3 (merged)

Unread postby Graeme » Sun 23 Feb 2014, 17:00:33

The Wind Turbine Has Been Reinvented And Is 600% More Efficient Than Current Design

This wind turbine makes use of funnels and tubes to harness wind energy. The Invelox turbine is capable of harnessing wind energy from winds which are as slow as 2mph and that is made possible by directing the wind into a funnel and then channeling it via a tube to the generator of turbine located on ground. Usually the wind turbine generator is situated on top of the tower. However, Invelox keeps the generator on ground and directs wind to it. The other obvious difference being that in conventional methods, wind energy is harnessed when it passes through the blades. With this design, that wind is captured via a funnel that leads to the generator.

So how is it done? Basically, the wind is made to pass through a passage which tapers along the way and hence, accelerates. This induced kinetic energy is then used to run the generator. The effect is known as ‘jet effect’ and is achieved by forcing the wind to blow down a passage which narrows at the end. The end result is wind with increased velocity but low pressure. The technique is known as Venturi Effect and as per Sheerwind, by employing this technique, the wind turbine can operate even when the wind blows at 2mph.


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Re: THE Wind Power Thread pt 3 (merged)

Unread postby Graeme » Thu 27 Feb 2014, 16:36:11

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Re: THE Wind Power Thread pt 3 (merged)

Unread postby Graeme » Tue 04 Mar 2014, 20:26:55

First Wind Makes $600,000 Community Benefit Payment as Early Construction Activity on Oakfield Wind Continues

First Wind, an independent U.S.-based renewable energy company, announced today that it has made the first payment to the town of Oakfield in the amount of $600,000 as part of the community benefit agreement. Situated about 2.5 miles from the center of Oakfield in Aroostook County, Maine, early construction on the 148 megawatt (MW) project began in late 2013. The Oakfield project will provide $12 million in community benefit payments over the next 20 years. In addition to the community benefit payments, First Wind is also scheduled to make about $15 million in tax payments over the next 20 years.



First proposed in 2008, the Oakfield Wind project received unanimous approval from the Maine DEP in January of 2012. In 2011, town of Oakfield residents voted 81-21 to approve the tax and community benefit agreement. The power that will be generated by the Oakfield Wind project is contracted to be sold to Massachusetts customers of four utilities as part of a 15-year contract, and will generate enough clean energy at cost-competitive rates to power about 50,000 homes.

Major construction of the project is expected to start later this year, with a completion and generation date predicted for 2015. Vestas will supply the 48 V112 turbines with a capacity of 3.075 MW each to the Maine project.

Other communities along the planned power line or “generator lead”, which will connect the wind project to the New England electrical grid, will also receive tax revenues from the project.


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Re: THE Wind Power Thread pt 3 (merged)

Unread postby KaiserJeep » Wed 05 Mar 2014, 08:59:38

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Re: THE Wind Power Thread pt 3 (merged)

Unread postby Tanada » Wed 05 Mar 2014, 11:17:32

It didn't work out too well for Don Quixote in Cervantes depiction of him either.
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Re: THE Wind Power Thread pt 3 (merged)

Unread postby Graeme » Thu 06 Mar 2014, 18:06:51

US States Boosting Wind Energy Output, Pipeline Filling Up

Wind energy continues to improve its standing in the U.S. energy footprint, generating over 167,000 MWh in 2013 and accounting for more than four percent of electricity generation, according to the latest information from the Energy Information Administration (EIA) and American Wind Energy Association (AWEA). Wind energy also has represented 30 percent of all new generating capacity over the last five years.

The data builds on AWEA's 4Q13 market review with the EIA's December generation data, and is a preview of AWEA's full annual market update in early April.

"We knew there'd be a big jump" showing wind energy uptake over the past year, given how much wind capacity was built out and completed at the end of 2012 and given a full year of generation under its belt, explained Elizabeth Salerno, VP of industry data and analysis.

Nine states now get more than 12 percent of their electricity generation from wind power, and 17 states top 5 percent. Iowa and South Dakota still rank 1-2 in U.S. wind energy generation, increasing their production in 2013 from ~24 percent each to more than 27 percent and 26 percent, respectively. Kansas leapt from 11.4 percent wind contribution to more than 19 percent, after doubling its wind energy output in 2012, and other big climbers on the list included Idaho (11.3 percent to 16.2 percent) and Oklahoma (10.5 percent to 14.8 percent). Texas continued to shine -- generating nearly 36 million megawatt-hours of wind energy in 2013, enough to power 3.3 million homes -- as the completed CREZ transmission lines are finally enabling new capacity development in the panhandle to be delivered to load centers in Dallas and Houston. California increased its wind generation contribution to 6.6 percent, which is "pretty incredible" for a state with such heavy load and demand, she said.


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Proposals for giant wind farms are shelved

Unread postby dolanbaker » Sat 08 Mar 2014, 19:46:29

A huge blow to renewable energy!


http://www.independent.ie/business/iris ... 71008.html
PLANS to erect thousands of wind turbines across the midlands to export power to the UK have been shelved, the Irish Independent has learnt.

An agreement between the Irish and British governments, which would allow power to be traded between both countries, is unlikely to go ahead, meaning at least 40 wind farms planned across five counties will be mothballed.

The lack of agreement comes amid concern from local communities about large-scale farms being developed here to allow the UK meet its legally binding renewable energy targets.

Two companies, Mainstream Renewable Power and Element Power, planned to erect at least 1,000 wind turbines across counties including Kildare, Meath, Westmeath, Offaly and Laois, but their plans are now unlikely to go ahead.

Contacted by the Irish Independent, Energy Minister Pat Rabbitte confirmed that a deal was unlikely.
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Re: Proposals for giant wind farms are shelved

Unread postby Loki » Sat 08 Mar 2014, 22:50:33

A quick Google search says this was a 5000 MW plan, pretty big. We have a lot of wind farms in my corner of the globe, Oregon has 3150 MW of wind capacity as of 2012, most of which is exported to California.

Last year the Irish and British Governments signed a memorandum of understanding which would have seen 2,300 wind turbines being built across the midlands between now and 2020 to supply 5,000 megawatts (MW) of power to the British market....

Mr Rabbitte has said the deadline is now unrealistic because the British side is not progressing the project in the way that was expected....

A note from Davy Stockbrokers suggested that the UK had cooled on the Irish export scheme and were instead looking to developing fracking, North Sea gas and nuclear energy to meet its energy requirements.

http://www.irishtimes.com/business/sect ... -1.1716726


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Re: Proposals for giant wind farms are shelved

Unread postby ROCKMAN » Sat 08 Mar 2014, 23:46:51

I'm going to make a wild ass speculation that this is mostly a negotiating ploy. I've looked and couldn't find any details on how these projects would be financed, if either gov't planned to guarantee any of the loans, if there was a guaranteed fee structure agreed to, etc. IOW who is going to risk $billions without a certainty that a minimum of X energy will be purchased at $Y. And would the Brits make such a guarantee if they weren't certain these projects would deliver as promised in the time frame that seems to be a rather serious aspect?

The general logic behind the projects seems obvious. But, as always, the devil is in the details.
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Re: Proposals for giant wind farms are shelved

Unread postby rollin » Sun 09 Mar 2014, 02:50:06

Sounds like that overcrowded, energy descent island is hobbling it's own energy future. The Irish make the money and the Brits get the power, maybe it's an old feud still kicking around.
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Re: Proposals for giant wind farms are shelved

Unread postby ROCKMAN » Sun 09 Mar 2014, 11:20:36

Rollin - Maybe but money can heal old wounds...at least to give the appearance. Consider that Texans gladly ship a lot of energy to our long-hair, smelly hippie brethren in CA. And we do this because we admire their liberal/commie ways? Not hardly...follow the money, baby. LOL. It sounds as if the Brits are in a no win situation if they really are forced to follow that renewable requirement and will either have to pay my Irish kin what they demand. If I were the Brits I wouldn't count on frac'ng which I doubt would meet their renewable requirement anyway. Or maybe in the end the Brits will declare Force Majeure and tell the EU to stuff it. Either way I don't see anything close to a soft landing for the Brits.
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Re: Proposals for giant wind farms are shelved

Unread postby ROCKMAN » Sun 09 Mar 2014, 11:54:01

Here's one explanation for the set back. Sounds somewhat similar to the battle over frac'ng in the NE US: landowners getting royalty checks while those not getting that mail box money opposing the effort. And state govts in favor of economic activities and some local govts opposed.

GREEN Party leader Eamon Ryan has claimed the British government is more clued in to the increasing disarray of the Government's wind-power strategy than Communications Minister Pat Rabbitte. Mr Ryan was responding to the politically embarrassing ditching of the deal to trade renewable power with Britain. As a result, plans to erect thousands of wind turbines across the midlands to export power to Britain have been shelved. An agreement between the Irish and British governments, which would allow power to be traded between both countries, is unlikely to go ahead, meaning at least 40 wind farms planned across five counties will be mothballed. Mr Ryan said the British "read the tea leaves" and realised the governments had lost the support of the community. "The Government got the whole midlands project wrong from the start. It was a textbook case in how to lose the support of rural communities...they allowed companies sign up local farmers into deals before anything was decided, which split the local communities in two. The Green leader also slammed the absence of any sort of communications strategy. "By not keeping public hold of the wires and by not promoting community ownership, they allowed the worst possible narrative develop where we were selling out to the Brits," he said. "We should have talked to communities in rural Ireland that so seriously need investment." Mr Ryan said a wind farm policy was needed, but it would be difficult to start from scratch three years into government when most of the opposition has actually come from Fine Gael and Labour Party TDs and Senators. Labour Senator John Whelan said he was "delighted'' with the news the British government had pulled the plug on plans to erect thousands of industrial wind turbines across the midlands. He warned the collapse of the inter-governmental agreement "raises serious question marks over the planned €4bn Eirgrid grid expansion".

So Labor opposed projects that would employ workers and generate income for locals. Hmm?
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Re: Proposals for giant wind farms are shelved

Unread postby dolanbaker » Sun 09 Mar 2014, 14:54:47

RM, You're correct about the local hostility towards the windfarms, several local TD's risk being deselected at the next election. As it is some of those wind turbines will be just down the road from here, I'm OK with that but many neighbours are hostile to the idea.
It is because the electricity is going to the UK as much as the fact that disinformation highlights "health" issues and the fact that some NIMBY's just don't want them on the horizon spoiling their view. In other parts of the country, there are opposition groups against HV distribution pylons for the same reasons.

Due to the (lack) of planning policy in Ireland, low density housing is spread over the whole country in such a way that it is impossible to construct a HV line without it going close to housing somewhere on the route.

The UK is very different in this way, planning policy since WWII has ensured that there is a clear distinction between urban & countryside meaning few houses outside of towns & villages. In the UK all abandoned farmhouses were quickly demolished to prevent them being used by non farmers but the remaining isolated rural houses are very quickly bought up and replaced with new houses so the rural depopulation has all but stopped since the 1980's. Ireland on the other hand now has about 1/3 of the population living in "single house developments" outside of any towns or village.
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