Offshore wind farms

Feb 12, 2010, 7:00AM EST
Offshore wind farms
Convenient source of renewable energy OR eyesore OR hazard to navigation?

 Northern European nations have pioneered the development of offshore wind farms, with large developments located along the coasts of Denmark, Germany, and the United Kingdom.  There have been complaints about the structures spoiling the view and maritime interests have expressed concern that the facilities might impact the safety of navigation.  But, large offshore winds farms are now producing renewable energy for nearby communities and more such farms are in the construction and planning stages throughout Europe.  The situation is different in the United States.  Cape Wind, the first offshore wind farm in the US, was first proposed more than ten years ago, to be constructed in Nantucket Sound and to supply electricity to the Cape Cod area.  Local residents, including Ted Kennedy and Walter Cronkite, strongly opposed it on the basis that it would adversely affect the esthetics of the area.  Concern was also expressed that the structures would create a hazard to navigation, as well as a possible hazard to migrating birds.  These latter issues are being examined.  Recently, the issue was raised whether the planned facility might have an adverse impact on historic Native American sites.  This issue has drawn the attention of Ken Salazar, Secretary of the Interior.  The Cape Wind saga continues.  Meanwhile, offshore wind farms are being considered for New York, New Jersey, Delaware, Virginia, and Texas, among other coastal states.  As the nation’s need for additional energy – particularly renewable energy – rises, offshore wind farms are a natural fit.  Like so many things these days, the issues are complex.  Each potential project presents its unique challenges.  Only time will tell how the competing viewpoints are reconciled.  
 
Report abuse



Bookmark this page to:Add to Faves Add to MyAOL Add to Simpy Add to Delicious Add to Live Add to Digg Add to Newsvine Add to Reddit Add to Multiply Add to Blogmarks Add to Yahoo MyWeb Add to Slashdot Add to Mister Wong Add to Spurl Add to Furl Add to Link-a-Gogo Add to Yahoo Bookmarks Add to Twitter Add to Facebook Add to Diigo Add to Mixx Add to Segnalo Add to StumbleUpon Add to Magnolia Add to Ask Add to Backflip Add to Terchnorati Add to Google Bookmarks Add to MySpace

Comments
Jon Watson
The real question is whether they are worth it or not, and the answer is probably not.
Note that the much referenced Danes have abandoned wind turbines because they pay over the odds and their rated 19% actually returns about 3% and they often have to dump wind energy at way below cost.
There is a very good discussion here:
http://www.aweo.org/ProblemWithWind.html
2/12/2010 12:20:01 PM
 
Dennis Bryant
Jon,
I am not trying to takes sides, as there are always two or more opinions, but I disagree with your statement that Denmark has abandoned wind power. Time magazine recently had an article about how Denmark is leading the world in wind energy. See, http://www.time.com/time/magazine/article/0,9171,1881646,00.html
The UK and Ireland are building large offshore wind farms. In the US, onshore wind farms are numerous and offshore wind farms are under consideration in a number of East Coast states, including Massachusetts, New York, New Jersey, Delaware, and Texas. Actions speak louder than words.
2/13/2010 3:10:44 PM
 
Jon Watson
Sorry, by abandoned I don't mean they have reverted to coneventional power generation and torn them al down. I mean that they are far less enthusiastic about wind power today than they were before with the Danish government no longer spending the subsidies they used to.
I would expect they are trapped into exploiting the power they generate for as long as they last but the problem is the economic problem they cause for Denmark which is well positioned by its interconnectivity with the grid to exploit the power generation in other countries and export its wind energy (when it is generated and Denmark does not need it).
The link I provided shows that Denmark's installed wind farms may well be substantial and "leading" compared to other countries, but it has not been a great success as various reports conclude.
The Dr Vic Mason reports referenced have to be searched for on the web but one such report is here:
http://www.dartdorset.org/pdf/West%20Danish%20wind%20power%20lessons%20for%20the%20UK.pdf
Here's an article reporting on a visit by Danish experts to inform the US:
http://www.thenewamerican.com/index.php/tech-mainmenu-30/energy/1890-danish-wind-power-overblown
The original link also looks at how some countries are less than enamoured of wind energy and have cuts subsidies.
The interesting link is that most power stations are rated on the amount of electricity they actually deliver, it is the difference between the power produced and the power consumed. Wnid turbines, because they need power even when there is no wind, do not consume their own electricity but draw electricity from the grid. This power is not accounted for in the rated capacity (or wasn't then).
The initial attraction of offshore wind is partly due to the objections being raised by various environmental organisations to land based wind farms.
The trouble with offshore is we don't yet really know what sort of environmental damage they may cause. What we do know is that they will be more expensive still.
Of course, for the marine industry the special ships needed to install them, the offshore services needed etc. will represent something of a windfall (pardon the pun).
What your linked article does show is that dominating the world wind energy manufacturing market, Denmark has a vested interest in promoting wind power to the world. What it doesn't say is how much investment is now being made in wind energy by the Danish Government and how that compares to 10 years ago.
If you have some links that establish that the Danish government has sustained or even increased its investment and subsidies for wind energy I'd be pleased to see them.
Much of the interest in wind energy is political and originally environmental but hardly based on sound economics and possibly not even now based on good environmental sense. An interesting article on the Cefn Croes wind farm illustrates that the they struggle to recover their carbon investment within their working life.
2/13/2010 5:17:10 PM
 
Jon Watson
There is a more recent report here:
http://www.cepos.dk/fileadmin/user_upload/Arkiv/PDF/Wind_energy_-_the_case_of_Denmark.pdf
2/13/2010 5:45:29 PM
 
Tarkovacs Stefan
About off shore wind farms, to attention of all interlocutors: actually, wind off shore exploitation is expensive at any level of execution. Each turbine needs installation, cable to coast, maintenance and so on, for rated 2,5 to 5 mw.
TAR KOVACS SYSTEMS is proposing a totally new concept able to work at any place on oceans, totally free of foundation, totally secure under storms or typhoon, producing energy from all forces simultaneously (wind, tidal, streams, sun)that needs only one cable, self-located and return to coast, always well positioned. We are searching industrial partners to develop it and to show that actual technologies are just expensive toys.
tarkovacs.systems@gmail.com
2/19/2010 1:46:14 PM
 

Sign in

Latest blog comments

2/4/2012

dilipan thomas
well there is no job for most people who has finished studi...

2/2/2012

Saunders Jones
Joe, You are right on regarding both GMATS and the Super...

1/25/2012

Joseph Keefe
Mark: You get the prize, indeed. Thanks for weighing in....

1/24/2012

Mark Sales
An apt and appropriate view of the situation. It also shou...

1/24/2012

Eric Goldring
I just wrote an article on my blog about the hype which has...

1/20/2012

Shiran Senanayake
I believe that Cruise Masters are fatigued with so many por...

1/19/2012

Alan Loynd
Absolutely correct. With the largest passenger ships now...

1/19/2012

James Lynch
Well stated. The need for regulation is obvious in any fie...

1/19/2012

Eugene (Gene) Horton
Dear Greg, I read your article on “size matters” and found...

1/19/2012

Laurie Thomas
Joe, to add to John's comment, here's another gem/bad news ...