You are hereBlogs / WcP.Scientific.Mind's blog / World first. Ever-restless ocean wave farm generates electricity for 1,500 homes on shore: Pelamis in Portugal

World first. Ever-restless ocean wave farm generates electricity for 1,500 homes on shore: Pelamis in Portugal


By WcP.Scientific.Mind - Posted on 15 November 2008

moored a few miles offshore, four of these floating plants from Ocean Power Delivery power a town in northern Portugal. The Pelamis converts wave motion into pneumatic pressure to drive a set of turbines

(quote)

Three red snakelike devices bobbing in the waves three miles (4.8 kilometers) off the coast of Agucadoura, Portugal, represent the first swell of what developers hope will be a rising tide of wave power projects. These big metallic sea snakes bobbing in the ever-restless waves of the North Atlantic are generating electricity for over a thousand homes on shore. The world’s most ambitious, working wave farm for generating electricity, it is part of Portugal’s national effort to become energy self-sufficient as Denmark has done since the 1970s oil crisis. Portugal is not a wealthy nation and has no coal or petroleum. So wind and water and sunshine are their favored sources of energy. Portugal is also one nation encouraging local cities to become zero emission communities.

Pelamis Wave Power Generator

Edinburgh- based Pelamis Wave Power, Ltd., (PWP) has since September been working with asset manage- ment firm Babcock & Brown, energy provider Energias de Portugal, and Efacec (a Portugese maker of electromechanical devices) on the Agucadoura project. This first phase will cost about $13 million and generate up to 2.25 megawatts. The company hopes to by early next year begin building installing another 25 wave-energy converters to increase the output to 21 megawatts, which is expected to serve the electricity needs of more than 15,000 Portuguese households.

Earth's oceans and rivers, pushed by wind and tugged by the moon and sun, ebb and flow over more than 70 percent of the planet, but only recently have researchers and scientists developed the materials and methods to finally harness some of that kinetic energy. There may not yet be a market for underwater turbines or wave-riding electrical generators designed to use ocean turbulence as a source of renewable energy, but that has not stopped a handful of entrepreneurs from trying to create one.

Pelamis Wave Farm - world’s most ambitious, working wave farm for generating electricity

Although all renewable energy sources—sun, water and wind—suffer from peaks and troughs in productivity, "we consider wave energy to be more predictable than wind," says PWP CEO Phil Metcalf. "You look at the ocean 1,000 miles [1,600 kilometers] out, you'll get a good idea of what to expect over the next 24 to 48 hours. We think it's actually going to be easier to dispatch to the grid."

Pelamis's devices are big red cylindrical tubes, each 426.5 feet (130 meters) long, 13 feet (four meters) in diameter, weighing around 750 tons (635 metric tons), and with a life expectancy of up to 20 years. The tubes are connected by hinges so that they float like a snake in the water. As the tubes' sections rise up and down on the passing waves they tug on the hinges, which are resisted by hydraulic rams that pump high-pressure fluid through hydraulic motors and turn electrical generators to produce electricity. Power derived from the joints on each wave-energy conversion is fed down via a cable to a central undersea export cable, which carries the collective power generated from site to shore.

Pelamis in Portugal

"Our machine works by reacting against itself," says Max Carcas, Pelamis's business develop- ment director. Most other technology developed for harvesting wave power—including Finerva Renewables's AquaBuOY, WaveBob Ltd.'s wave-absorbing buoy and another buoy-mounted generator made by SRI International—absorbs energy from riding the waves as they bob up and down.

Pelamis's tubes work best at a depth of more than 165 feet (50 meters) and roughly 3.7 miles (six kilometers) from the shore, where the waves are strong but a crew can still connect a cable from the tubes to the shore. "Waves lose energy once you get to get to less than half a wavelength depth—typically deep swell waves are 100 to 140 meters (330 to 460 feet) in wavelength—hence why we focus on being out above 50 to 70 meters (165 to 230 feet) of water," Carcas says. The distance off the coastline to get to this depth contour will vary from place to place but typically is two to 15 kilometers (1.2 to 9.3 miles), he adds.

(unquote)

Photos courtesy of BusinessWeek, Ocean Power Delivery Ltd., DVICE and Pelamis

Original Source: Scientific American and ZDNet

Related Articles: The race begins for tide power bonanza, Pelamis plugs Portugal into wave power and Surf's up at Portugal's wave farm - VIDEO

Official Site: Pelamis

This is very much interesting. Thanks for sharing this useful information.
Hydrophis belcheri

One of the fears I have is that if such a technology is refined and becomes massively popular, more ad more countries living close to the sea will start to implement this wave farm to generate their electrical energy. Will we see our shores filled with these wave farms? Would this affect the marine life in anyway?

This is an interesting technology indeed. The current version of this technology is not yet at its most efficient, but I am sure science as it ways to make it so. However, if Portugal decides to fully rely on this wave energy, wouldn't it deface the beautiful seas with those machines?

The earth itself provides so many ways to capture energy, from wind to sun to tides. The forces of nature, based on gravity and attraction of celestial objects, are waiting for us to harness. Much more respectful of the planet than burning fuel.

Contact Us

Contact Us

RSS feed

Subscribe to WcP Blog RSS feed

Twitter

WcP Blog on Twitter

Facebook

WcP Blog on Facebook

Custom Search



Archive Calendar

February 2018
SunMonTueWedThuFriSat
123
45678910
11121314151617
18192021222324
25262728


Random image

LuCxeed Photography: Diligence

Poll

Search the Web

Custom Search

Featured Videos

Latest Quote

"Conscience is a man's compass."
- Vincent van Gogh

"Labor to keep alive in your breast that little spark of celestial fire called conscience."
- George Washington

Recent comments

Reader Reviews

  • "Very good and creative website, graphics are wonderful." - Ricky (October 7, 2017)
  • "This is absolutely fantastic photography. I recommended to lovers of photography." - Christina (June 30, 2017)
  • "Your website seems to have precious gemstones on the subject of penning." - Bryce (March 29, 2017)
  • "Your articles are constantly awesome. You compose with exactness and your data is constantly precise. What's more, those two things make an article go from great to awesome! Continue distributing more extraordinary articles." - Ayesha (March 19, 2017)
  • "You are doing an amazing job." - Jake (January 4, 2017)
  • "I am an anthropology student and this site has helped me a lot to know more about the various cultures across the world. This is the reason I visit the site so often. Keep on sharing more and more posts like this. Thank you." - Anonymous (April 3, 2016)
  • "Your site is valuable. Appreciative for sharing! Awe inspiring Blog!" - Anonymous (March 16, 2016)
  • "This blog is the book which has feelings for around their lives. Will you produce intense addons." - Anonymous (January 26, 2016)
  • "Interesting quote. I have gone through different posts in this website. I could see different themed quotes and interesting posts here. I am much impressed with this website. Keep up the good work and keep sharing interesting stuff." - Howard (January 25, 2016)
  • "I was so impressed by it I felt I would reach out to you to say thank you. Great work...that's one great blog you've got there!" - Kayla (January 8, 2016)
  • "This is incredible. Finally something new. I was reading comics the whole time. This is the real fact, which I do not think anyone else has such a well written and updated blog like yours." - Zach (January 7, 2016)
  • "The Superbly defined stuff of reading, you constructed a masterpiece with your magical mind. Your writing skills are simply awesome. Great work!" - Katie (December 28, 2015)
  • "This really shows that you can still find folks that care about the things they post online. I really liked browsing the comments." - Myles (December 23, 2015)
  • "Yes i agree with the above poem that window is the world so far i have come across. Every thing comes from it. You have written in a very poetic way. Looking forward for more poems from this." - Anonymous (December 11, 2015)
  • "Every last tip of your post is incredible. You're really great to share. Keep blogging..." - Anonymous (December 8, 2015)
  • "I always take pleasure in your articles. You have a gift for discussing such stirring topics in ingenious yet amusing ways. Your posts help us realize that our troubles are typical, and we can solve them in ready to lend a hand ways..." - Angela (October 05, 2015)
  • "We all appreciate the power of words you always provide!" - Anonymous (October 05, 2015)
  • "So poetic..." - Anonymous (September 15, 2015)
  • "The method for composing is phenomenal furthermore the substance is first class. A debt of gratitude is in order for that knowledge you give the perusers!" - Anonymous (July 23, 2015)
  • "Your configuration, man...too astonishing! I cant hold up to peruse what you've got next.Thanks for your superb posting!" - Anonymous (July 16, 2015)
  • "I found myself starring at these photos. I cannot believe that I haven't seen them before, taking into account that I am mesmerized by sea and ocean as one can be by forces of nature. Thank you so much for putting them out here, because even though they were posted by such a giant as National Geographic, I still have missed them. Well, “dazed” is the exact word that describes the feeling that I felt when I first set my eyes in these photos." - Anonymous (July 14, 2015)
  • "I will check your different articles without further ado. Continuously so fascinating to visit your site. Thank you for sharing, this will help me such a great amount in my learning." - Anonymous (July 10, 2015)
  • "Extraordinary stuff, just basically astonishing! Keep it up in future. I am truly inspired by this site!" - Anonymous (July 3, 2015)
  • "I was reading your post since 2012 and you are writing so much outstanding ideas I must say you are a talented person." - William (June 29, 2015)
  • "I have never seen such amazing thoughts displayed in composing. Your author has an extremely one of a kind method for exhibiting data so as to catch the peruser's consideration." - Anonymous (June 27, 2015)
  • "Mind boggling posting! I really like the way you are sharing the exceptional tackle this subject." - Anonymous (June 25, 2015)
  • "I unquestionably appreciated all of it and I have you bookmarked your site to look at the new stuff you post in the future." - Anonymous (June 13, 2015)
  • "I was very thrilled to find this website. This is really interesting and I have recommended this site for my friends also. I had a fantastic read from this blog." - Anonymous (June 2, 2015)
  • ""The exposition seeks to discover a haven inside character and communicate gratitude for life during its peaceful and thoughtful vibe." - Micheal (May 19, 2015)
  • "Fantastic Blog! I might want to thank for the efforts you have made in writing this post." - James (May 15, 2015)
  • "You are a good photographer your photography is good you click very nice shots which are very attractive and beautiful keep it up." - Ashlyn (May 5, 2015)
  • "Amazing! Great post! Wonderful pictures and well written article!" - Anonymous (March 10, 2015)
  • "Certainly worthwhile content! This is an excellent reference to spent time and gets authentic observation by reading." - Anonymous (February 12, 2015)
  • "Certainly exceptional blog! It is so wonderful content and acceptable with a clear concept. Thanks much!" - Lisa (January 13, 2015)
  • "Photography is my passion and like to learn something new about it. From your blog i have learned many things and i loved to read it thanks for sharing such a useful post" - Anonymous (January 1, 2015)
  • "Magnificent web blog! This is your superb consideration and appreciate your notion with this matter. Thanks a lot for sharing!" - Lisa (December 20, 2014)
  • "It's an extraordinary joy perusing your post. It's loaded with data I am searching for and I want to post a remark that the substance of your post is wonderful. Thanks! :)" - Lilia (July 31, 2014)
  • "I do not even understand how I finished up right here, but I thought this to be great. I do not recognise who you are however certainly you
    are going to a famous blogger for those who are not already. Cheers!" - Gerald (July 24, 2014)
  • "Your blog is very informative. Also the images in it are beautiful!" - Anonymous (January 8, 2014)
  • "It is tempting to comment because of the amazing content on this blog. I wish I had a blog like this." - Anonymous (December 27, 2013)
  • "Thanks for trying to make the world a better place." - Anonymous (July 16, 2013)
  • "I have added to my favorites. I just found this blog and have high hopes for it to continue. I believe this really is excellent information. Most of men and women will concur with you and I ought to thank you about it. Thanks for sharing." - Anonymous (May 16, 2013)
  • "This is awesome! Your photos are perfectly taken! It captured the decisive moment. I am a fan already." - Sarah (Apr. 15, 2013)
  • "Can I just say what a relief to obtain a person who truly knows what they're talking about on the web. You certainly know easy methods to bring an issue to light and make it critical. Extra individuals must read this and comprehend this side of the story. I can't believe you're not even more well-liked considering that you absolutely have the gift." - Anonymous (Jan. 23, 2013)
  • "I wish to show my thanks to the creator of this blog. Keep contributing a good concepts and strategies. Many people will surely improve their skills by reading blogs like this." - Anonymous (Dec. 25, 2012)
  • "I really like your style but mostly your initiative. The world needs more writers like yourself." - Steve (Jan. 18, 2012)
  • "It must be very rewarding to have a long term project like this and too see the progress being made! Thanks for sharing it." - Mika (Jan. 18, 2012)
  • "This was a very eye opening video. It's made an impact on me. We're so unaware of the things that we do every day can destroy our ecosystem. The statistics are mind blogging especially the fact that 90% of big fish are gone. We need to stop this somehow. I'm going to spread this page to my mutual friends. Thanks for this." - Joseph (Jan. 15, 2012)
  • "I enjoy this blog a lot." - Liz (California, USA; Oct. 17, 2011)
  • "Keep up the good work you're doing." - Casper (Melbourne, Australia)
  • "Thanks for sharing some great content through your blog. It has been a sincere pleasure to read." - Anonymous
  • "Always fresh and fascinating." - Anonymous
  • "Cool bio[mission statement]." - Darin (California, USA)
  • "You have some beautiful images. Love your site!" - Susan (Washington DC, USA)
  • "I love your Blog." - Kate (Ireland)
  • "A great site highlighting many important issues." - Bob (New Zealand; Feb. 20, 2010)
  • "Love the images on this blog..there are some interesting articles about health I noticed...we tend to run a 50/50 risk of a heart attack...I noticed when in the USA recently everyone seemed huge..they ate massive meals...I reckon that is one cause of heart failure...just my opinion..but yeah these articles can be worrying to some folk so just heed the advice...I know I will." - Mick (The Sunshine Coast, Australia; Aug 29, 2009)
  • "Excellent blog." - Bill (Vancouver Island, Canada)
  • "Fantastic blog and educational articles, much enjoy visiting...Thank you!" - Lotus1150 (Alberta, Canada; Aug 28, 2009)
  • "Great site and awesome photos." - David (Washington DC, USA)
  • "I loved your website. Even finding some news about Turkey made me surprised." - Anonymous (Turkey)
  • "Gorgeous site ... the kind of place you could lose yourself for hours (suppose that was intentional?). Also, cartoons, commentary on the events of the times, etc. Great stuff." - Daniel (Nevada, USA; Jan. 03, 2009)
  • "...may your blog, ideas and efforts help many more people." - Anonymous (New Mexico, USA)
  • "Very cool site..." - Anonymous
  • "Amazing site, worth the visit every time... enjoy." - Sam (Saudi Arabia)
  • "Easy to read and well-designed." - Colin (Arizona, USA; Apr. 22, 2009)
  • "Unique mix of news, photos and poetry." - Frasier (Virginia, USA)
  • "Worldculturepictorial.com/blog is an extremely interesting collection of news articles. It calls itself "A Window On the World". The site contains a wide variety of topics, all very informative and pertinent to life in today's world." - Cynthia (Massachusetts, USA; Aug. 07 2008)
  • "Wow. Cool." - Christopher (Melbourne, Australia; Dec. 10 2008)
  • "An interesting way to check out the wonders of our world." - Anthony (Ohio, USA)
  • "Nice site, especially the rss icon." - Daniel (California, USA; Sep 10, 2008)
  • "Good blog - Everything from news to photography. Very informative." - "explicitmemory" (Texas, USA)
  • "Very informative site by prose and picture..." - Jeff (Michigan, USA)

AdSense unconfigured block. Click to configure.