Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

The Next Generation of Tidal Stream Power Plants

18.03.2013
Siemens continues to develop its technology for tidal stream power plants. In the future, the new model will deliver higher performance at lower costs due to optimized construction.

Today, the SeaGen power plant in a northern Irish narrows has an installed capacity of 1.2 megawatts (MW). The SeaGen-S will deliver two MW.



The Welsh government has now approved the construction of five of these turbines for a ten MW power plant off the northwestern coast of Wales. It is scheduled to go into service in 2015 and supply around 10,000 homes with environmentally friendly electricity.

The new rotors are the most apparent change in construction. Their diameter has been increased to 20 meters and each of them has been equipped with an additional rotor blade. That means that the new model looks somewhat like an underwater windmill. The Siemens experts promise that the new rotors will be better able to distribute the pressure of the water current. This in turn will reduce wear and lengthen the service life of the power plant.

The company wants to build more power plants using the SeaGen-S in underwater arrays similar to the one in Wales. In that way, large amounts of electricity could be brought together - as is the case with wind farms - and transmitted to the mainland. The construction of arrays also makes sense when the topological requirements for tidal stream power plants are taken into consideration. By contrast to tidal barrage power plants, tidal stream units don't require a dam. But that means that these power plants won't work just anywhere - they should only be constructed in locations with especially strong currents.

SeaGen is located at just such place, the narrows between the natural harbor of Strangford Lough and the Irish Sea. Here the water flows at a constant speed of more than 4.7 knots - corresponding to 2.4 meters per second.

Driven by this current the rotors of the power plant turn ten to 15 times per minute. The 1.2 megawatts generated by SeaGen supplies electricity to around 1,500 households.

In October 2012 SeaGen reached three significant milestones for commercial power generation. The facility has now generated 22.53 megawatt hours of electricity in one day, one gigawatt hour in 68 days, and a total of six gigawatt hours since the middle of 2008.

With these achievements, the technology has taken an important step toward commercialization and market maturity. For the development of the SeaGen-S, engineers have turned to the data that has been collected during the SeaGen's 25,000 operating hours to date.

Dr. Norbert Aschenbrenner | Siemens InnovationNews
Further information:
http://www.siemens.com/innovationnews

Further reports about: Jet Stream Northern Irish Power Plant Technology SeaGen-S power plant

More articles from Power and Electrical Engineering:

nachricht Stretchable biofuel cells extract energy from sweat to power wearable devices
22.08.2017 | University of California - San Diego

nachricht Laser sensor LAH-G1 - optical distance sensors with measurement value display
15.08.2017 | WayCon Positionsmesstechnik GmbH

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Cholesterol-lowering drugs may fight infectious disease

22.08.2017 | Health and Medicine

Meter-sized single-crystal graphene growth becomes possible

22.08.2017 | Materials Sciences

Repairing damaged hearts with self-healing heart cells

22.08.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>