The World's #1 Renewable Energy Network for News, Information, and Companies.
Untitled Document

Hybrid Wind-Tidal Turbine To Be Installed off Japanese Coast

A hybrid wind-current power generation system will be installed off the Japanese coast later this year, said Tokyo-based Mitsui Ocean Development & Engineering Company (MODEC), the device’s developer.

The 500-kW Savonius Keel & Wind Turbine Dar- rieus, or SKWID, is a hybrid system featuring an omnidirectional Darrieus wind turbine and a Savonius tidal turbine, which share a floating axis. A power generation assembly sits between them at deck level, anchored by a set of rubber mounts to a floating semi-submersible platform. The system will be able to generate power from either or both sources.

The wind turbine will have a hub height of 47 meters (154 feet) and a rotor diameter of 15.2 meters (49 feet), according to the company.

Addressing the issue of stability, the company said the tidal turbine acts as ballast, making the assembly self-righting, and that the location of the gener- ator at deck level creates a low center of gravity as well as offering easy access for operations and maintenance. The Savonius tidal turbine is especially suited to harvesting energy from weak currents, MODEC says, and its rotation can be used to start the wind turbine spinning in low wind conditions.

MODEC is an offshore technology company specializing in floating oil and gas production systems. 

This article is part of our regional news briefs in the completely redesigned Renewable Energy World digital magazine. Subscribe here to recieve a free copy.

Lead image: Japan flag and sea via Shutterstock

Untitled Document

Get All the Renewable Energy World News Delivered to Your Inbox - FREE!

Subscribe to Renewable Energy World Magazine and our award-winning e-Newsletter to stay up to date on current news and industry trends.

 Subscribe Now


First U.S. Grid-Connected OTEC Plant Goes Live on Hawaii

Andrew Burger Hawaii Governor David Ige on Aug. 21 joined executives from the Office of Ocean Naval Research (ONR), Makai Ocean Eng...

Makai Builds Ocean Thermal-Energy Demo Plant With U.S. Navy

Anna Hirtenstein, Bloomberg

Makai Ocean Engineering Inc. has built an ocean thermal-energy conversion demonstration plant in Hawaii.

Renewable Energy Gains Greater Opportunity in US Clean Power Plan

Elisa Wood After a year of being pummeled by opponents, Obama’s final carbon reduction plan emerged this week with an even stron...

Listen Up: Vampires Sucking Power from your House

The Energy Show on Renewable Energy World Here’s a nightmare for you: at night, when you’re asleep and you think things are quiet, there are vampires sucking p...


Array Technologies Finalizes Shipments to E.ON’s Maricopa West Solar Project

Array Technologies, Inc. (ATI) has completed DuraTrack® HZ shipments to the 20 MW (ac) ...

B.C. Energy Minister to provide keynote at renewables for mines summit.

BC Minister of Energy and Mines to address the challenges of providing alternative powe...

Mining leaders seek renewables solutions at Toronto Summit

The global mining sector is facing a tough business environment with low commodity pric...

American Renewable Energy Institute Gears Up for 12th Annual Summit

"Racing Climate Change: Green Bridge with China, The Road to Paris” is the theme of th...


New Mexico Attracts Jobs and Revenues with Renewable Energy Tax Credit

New Mexico has abundant fossil fuel resources: in 2013, it ranked sixth in the nation for crude oil production, seven...

The Vice President Stole My Show (Not Really)

When I finished my Solar Power International (SPI) panel discussing what future opportunities the panelists saw in so...

The Value Of The Building

If you’re selling efficiency solutions in the built environment, you may find yourself being asked by your pros...

Sewage provides energy through processing

Many nations are investing in new technology to turn sewage waste into usable energy. Japan has recently revised its ...


Renewable Energy World's network editors help deliver the most comprehensive news coverage of the renewable energy industries. Based in the U.S. and the UK, the team is comprised of editors from Pennwell Corporation's myriad of publications that ...


Volume 18, Issue 4


To register for our free
e-Newsletters, subscribe today:


Tweet the Editors! @jennrunyon



Doing Business in Europe – in partnership with GWEC, the Global Win...

There is now 128.8 GW of installed wind energy capacity in the EU (appro...

JuiceBox Energy Certified Installer Class

JuiceBox Energy is rapidly building out its national certified installer...

Wind Operator Congress Europe

The UK’s only business-focused O&M event for the European wind...


Clean Energy Patents Maintain High Levels in First Quarter, Solar L...

U.S. patents for Clean Energy technologies from the first quarter of 201...

Fact Check: AWEA represents American wind power

The American Wind Energy Association (AWEA) is proud of its members for ...

Koch Professor drops his Koch title, still makes same errors plus s...

The Koch Professor’s title isn’t the only thing that’s...


Renewable Energy: Subscribe Now

Solar Energy: Subscribe Now

Wind Energy: Subscribe Now

Geothermal Energy: Subscribe Now

Bioenergy: Subscribe Now