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http://wavestarenergy.com/sites/default/files/Report%20for%20EnergiNet%20-%20May%202013.pdf
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Rising to the Challenge
The concept was invented by sailing enthusiasts Niels and Keld Hansen in 2000. The challenge was to create a regular output of energy from ocean swells and waves that are 5-10 seconds apart. This was achieved with a row of half-submerged buoys, which rise and fall in turn as the wave passes, forming the iconic part of Wavestar’s design. This allows energy to be continually produced despite waves being periodic.
The machine’s unique storm protection system, one of the many patented aspects of the design, guarantees the machine’s sea survivability and represents a real milestone in the development of wave energy machines. Wave energy will play a crucial role in securing our energy future, but only machines that can withstand the strongest storms will survive.
Climate and environmental issues demand swift diversification to multiple renewable sources in order for us to fulfill our future energy needs. Wavestar will work in harmony with other clean energy methods to support the alternative energy movement and ensure a continuous supply of clean energy. Imagine what we can do together.
News
Wavestar moves to the next level
Within the next days the big Wavestar plant will be towed closer to the coast to be updated with new equipment that will make wave energy more competitive in the future. This big operation is done in order to expand the facility by a further two floats and to implement a new digital hydraulic system developed in collaboration with Aalborg University which will increase the efficiency considerably. And finally, the plant will later be moved to a new location with larger and more regular waves.DONG Energy and Wavestar enter into collaboration on wave power
DONG Energy A/S and Wave Star A/S has entered into a research and development collaboration that is to explore the prospects of combining wind energy and wave power. Wavestar have developed a 0.6 MW wave machine that will form the basis for the two companies’ investigation of the prospects of combining these two energy sources.Climate Minister Martin Lidegaard visit Wavestar
March 19, the Minister will learn more about wave energy. He will visit Wavestar and Aalborg University, which is our collaboration partner and a leader in research on wave energy.
Power calculations in waves and power production
The Wavestar Story
Sailing enthusiasts Niels and Keld Hansen came up with the concept behind Wavestar in 2000, but the idea originated when they were sailing near their parents’ summer house. They began to talk about how they could harness the powerful forces beneath them. The company purchased the rights to the machine in 2003 after seeing the huge commercial potential of wave energy. The Hansen Brothers remain as consultants at Wave Star while the Clausen brothers, the family behind Danfoss, are now the main shareholder.
1/40 scale
In 2004 extensive tank testing was performed on a scale 1:40 model with the sole purpose of optimising the basic configuration of the system and to document the electrical power production in typical North Sea waves. More than 1,300 different test runs were performed to optimise the concept and were used to document any technical questions about the concept as they arose from the testing.
1/10 scale
In 2005 the first grid connected scale 1:10 model was designed and built for operation in the sea at Nissum Bredning where the waves are approx. 1:10 of North Sea waves. It was designed as if it was a big scale machine in order to learn about the practical issues of operation in the sea. The system contained all the instrumentation and control systems necessary to work unattended round the clock.
Nissum Bredning installation at Helligsø Teglværk. (Can be seen from the air in Google Earth or Krak.)
After the final dry testing, the scale 1:10 model was installed on 6 April 2006 and put into round the clock operation on 24 July 2006. Since then it has logged more than 15,000 operational hours in the sea and been through 15 storms without any damage. By international standards, it is quite an achievement because nobody has test systems in the sea which just work, without major technical problems.
1/2 scale
The test section of the 600 kW machine has been installed at Hanstholm the 18 September 2009, the installation was performed in two days. A bridge was built to access the machine in autumn 2009 and the first guest could visit the plan during the COP15. The machine has been connected to the grid since February 2010.
Since May 2010 a monthly production report has been made and delivered to Energinet.dk. The reports show an increasing of energy harvested from the wave during the last production months:
Wave Star receives a payment from EnergiNet.dk every time the production is above the green curve. The green curve has been agreed with energiNet.dk based on estimated production figures from the beginning of the test.
The reports contains both wave information (wave height, period,..) and also information on wind (speed, direction…). EnergiNet.dk is studying the data to show a correlation between wind and wave. A report on that analyze should be available soon this year.
General consideration - Minimising scaling risks
Results for production results in different location are now predictable as it is based on our power matrix together with a scatter diagram for the chosen area:
The machine should be adaptable according to the sea condition and to the most efficient cost of energy. The scalability of the machine (floats from 5 to 10m in diameter) makes it very adjustable to sea condition.
Virtual Tour of the Wavestar machine
アップロード日: 2011/03/31
Get a unique peek of the indside of the Wavestar machine and how it produces electricity from harnessing the energy of waves.
Wavestar has been dedicated to developing commercial wave energy technology since 2003 and it is currently the only stable and proven wave energy machine in the world.
Wavestar is the strongest wave power concept. It leads the race to turn ocean power into unlimited clean energy. Test and research machines have been operating in the North Sea and the Danish fjords since 2006 and they are among the first wave energy machines to be connected to the grid. The commercial 500 kW machine will soon go into production. Wavestar will work in harmony with other clean energy methods to support the movement towards alternative and sustainable energy.
Check out our website, see more of our videos on Youtube and please like us on Facebook.
Wavestar has been dedicated to developing commercial wave energy technology since 2003 and it is currently the only stable and proven wave energy machine in the world.
Wavestar is the strongest wave power concept. It leads the race to turn ocean power into unlimited clean energy. Test and research machines have been operating in the North Sea and the Danish fjords since 2006 and they are among the first wave energy machines to be connected to the grid. The commercial 500 kW machine will soon go into production. Wavestar will work in harmony with other clean energy methods to support the movement towards alternative and sustainable energy.
Check out our website, see more of our videos on Youtube and please like us on Facebook.
Our vision: offshore energy parks combining wind, wave and solar
アップロード日: 2011/09/05
Wave power has the ability to utilize the energy from the waves for a long time after the wind turbines must be security stopped because of too high wind speed.
Wavestar plants have also space for approx. 200 square meters of solar panels. Solar energy is similar to wave energy a renewable technology that is rapidly evolving.
This means that the same area of ocean between the two windmills, without further restrictions on fishing and sailing, may give an additional electricity production with current technology at 5 MW of wave power plants alone.
Wavestar is the strongest wave power concept. It leads the race to turn ocean power into unlimited clean energy. Test and research machines have been operating in the North Sea and the Danish fjords since 2006 and they are among the first wave energy machines to be connected to the grid. The commercial 500 kW machine will soon go into production. Wavestar will work in harmony with other clean energy methods to support the movement towards alternative and sustainable energy.
Check out our website, see more of our videos on Youtube and please like us on Facebook.
http://www.wavestarenergy.com
http://www.youtube.com/user/WavestarDK
http://www.facebook.com/wavestarenergy
Wave star pumping station testbech for wave energy converter
Jacking procedure of Wavestar machine
アップロード日: 2011/05/24
Wavestar is the strongest wave power concept. It leads the race to turn ocean power into unlimited clean energy. Test and research machines have been operating in the North Sea and the Danish fjords since 2006 and they are among the first wave energy machines to be connected to the grid. The commercial 500 kW machine will soon go into production. Wavestar will work in harmony with other clean energy methods to support the movement towards alternative and sustainable energy.
Check out our website, see more of our videos on Youtube and please like us on Facebook.
http://www.wavestarenergy.com
http://www.youtube.com/user/WavestarDK
http://www.facebook.com/wavestarenergy
Check out our website, see more of our videos on Youtube and please like us on Facebook.
http://www.wavestarenergy.com
http://www.youtube.com/user/WavestarDK
http://www.facebook.com/wavestarenergy
Harnessing Wave Energy
アップロード日: 2010/10/15
Lesley Riddoch visits Hanstholm in Denmark to find out about the development of Wavestar from tank to working model.
Wave Star A/S
http://hornonline.com/frontpage/denmark/destination-denmark/wave-star
Long ago Denmark positioned itself as a green nation.
Now we are moving forward in the exploitation of the enormous forces of the sea.
After 6 years of intensive development and testing of several small-scale machines, a prototype of a commercial 600 kW wave energy machine was installed in the North Sea of Denmark in September 2009. The 40 m long impressive prototype – with two floats of 5 m in diameter – is located 300 m off Hanstholm in the North Sea at a water depth of 7 m and produces electricity to the grid.
With the operating 500 kW prototype, Wavestar has stated its position among the leading wave energy developers in the world.
Right now, alternative energy sources usually exist separately. Wavestar wants everyone to work closer together to realize the dream of unlimited clean energy. We wish to see wave power plants incorporated in all future wind farms off the coast in countries facing the big oceans.
Vision
http://wavestarenergy.com/vision
The Wavestar vision is about more than just building a machine. In fact, it’s about more than wave energy. We want to change the entire world’s mindset about how we produce clean energy. Here’s the plan to make that happen.
Right now, alternative energy exists in a vacuum, but Wavestar want everyone to work closer together to realize the dream of unlimited clean energy. Wavestar plans to lead this movement by building the very first energy parks where wave energy machines can be placed in between the wind mills. This is a win-win as it increasing efficiency and reduces costs for all. When wind and wave join forces to produce clean energy, everybody wins.
This is a brand new and revolutionary idea in an industry that often fails to see the bigger picture. At Wavestar we don’t just want to produce electricity; we want to power a whole movement that understands we need many clean and elegant solutions working together in order to meet the planet’s energy needs.
Wavestar’s visionaries are not just big thinkers, but engineers who are already setting new industry standards. The data model that Wavestar uses to measure the potential energy of waves is being made an industry standard by EnergyNet, proving the theoretical concepts underlying Wavestar’s calculations.
The Wave Star vision has been evolving for well over a decade. Sailing enthusiasts Niels and Keld Hansen came up with the concept behind Wave Star in 2000, but the idea originated when they were sailing near their parents’ summer house. They began to talk about how they could harness the powerful forces beneath them. The company purchased the rights to the machine in 2003 after seeing the huge commercial potential of wave energy. The Hansen Brothers remain as consultants at Wave Star while the Clausen brothers, the family behind Danfoss, are now the main shareholders.
With the 500 kW machine in development, the company has claimed a position among the leading alternative energy developers in the world. Wave Star aim to make it the first series-produced 500 kW machine for big oceans, ready for sale in 2012/2013. Wave Star is not stopping there though. The machine will then be doubled in size, capable of handling twice the wave height. This will increase each machine’s output to 6 MW, enabling a single machine to provide energy for 4,000 homes.
A report about the recent development in Danish wave energy concepts
http://wavestarenergy.com/sites/default/files/Recent_Developments_of_Wave_Energy_Utilization_in_Denmark.pdf
参考：
The Danfoss Group
http://en.wikipedia.org/wiki/Danfoss
The Danfoss Group is a global producer of components and solutions. The products and services are used in areas such as cooling food, air conditioning, heating buildings, controlling electric motors and powering mobile machinery. The company is also active in the field of solar and wind power as well as district heating and cooling infrastructure that targets entire cities and urban communities). Danfoss employs approximately 23,000 people [1] worldwide with headquarters in Nordborg, Denmark.
Danfoss was founded in 1933 by Mads Clausen, and is today almost entirely owned by The Bitten and Mads Clausen Foundation. In 2002 Danfoss joined the United Nations Global Compact, consisting of nine principles with social and environmental responsibility.
Danfoss has an annual sales turnover of 34 billion DKK (2012), and has sales companies in 47 countries and 56 factories in 18 countries around the world.[2]
DONG Energy
http://en.wikipedia.org/wiki/DONG_Energy
DONG Energy is an energy company based in Fredericia, Denmark. It is Denmark's largest energy company.
History
The Danish state-owned company Dansk Naturgas A/S was founded in 1972 to manage gas and oil resources in the Danish sector of the North Sea. After some years, the company was renamed to Dansk Olie (Danish Oil) og Naturgas (Natural Gas) A/S (DONG). At the beginning of 2000s (decade), DONG started to extend itself into the electricity market by taking long positions in electricity companies. In 2005, DONG acquired and merged Danish electrical power producers Elsam and Energi E2 and public utility (electricity distribution) companies NESA, Københavns Energi and Frederiksberg Forsyning. The result of the merger was the creation of DONG Energy. The merger was approved by the EU Commission on 14 March 2006.
DONG sold a power cable accessing the world’s largest wind farm to its partners, E.ON and Masdar for around $728 million in September 2013.[4]
http://www.dongenergy.com/en/Pages/index.aspx
DONG Energy corporate movie 2013 (Danish)
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