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 Silicon solar cell of ISFH yields 25% efficiency with passivating POLO contacts
08.12.2016 | Institut für Solarenergieforschung GmbH

nachricht Robot on demand: Mobile machining of aircraft components with high precision
06.12.2016 | Fraunhofer IFAM

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: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>