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

Siemens Completes HelWin1 HVDC Offshore Platform Install

A key development in linking the two offshore wind farms Nordsee Ost and Meerwind to the German mainland has been completed according to Siemens, which says it has installed the HelWin1 offshore platform in the North Sea.

Using Siemens HVDC technology, the HelWin1 will transform the alternating current generated by the wind turbines into direct current for transmission onto land. The link is due to be energised next year in 2014 and will enable the power to be transferred to the land-based station located northwest of Hamburg in Büttel, where electricity will be converted back into AC for the grid.

Network operator TenneT contracted a consortium consisting of Siemens and the Italian cable specialist Prysmian for the HelWin1 connection in 2010. The consortium is implementing a total of four North Sea grid connection projects for TenneT: HelWin1 and 2 off of Helgoland, BorWin2 off Borkum and SylWin1 off of Sylt.HelWin1

“Installation of the platform for HelWin1 constitutes reaching a key milestone in our series of grid connection projects. The transmission capacity of our projects involves a total of 6.2 GW of electric power from renewable sources,” remarked Lex Hartman, member of TenneT management board.

The HelWin1 platform was anchored at its final position northwest of the island of Helgoland in 23-metre-deep waters. Ten steel pilings up to 3.2 metres in diameter and up to 100 metres long were anchored in the seabed for attachment of the structure. The platform is installed 22 metres above sea level to protect it against wave impacts, having been designed for decades of operation in the North Sea.

Fabricated by Nordic Yards at Wismar under contract by Siemens, at 12,000 tons the HelWin1 platform has seven decks with a total of 24 berths.

Up to 100 employees will be active on the platform for the subsequent project phase in the North Sea, for example connecting the two Prysmian subsea cables, each with a length of 130 km.  The cable route covers 85 km at sea and 45 km over land.

Transmission will take place at 250 kV DC and the HelWin1 HVDC platform has a capacity of 576 MW. Total transmission losses are less than 4 percent, Siemens says.

Final commissioning of HelWin1 is scheduled for the second half of 2014.

Image: The HelWin1 HVDC station, courtesy of Siemens

Untitled Document

Get All the Renewable Energy World News Delivered to Your Inbox

Subscribe to Renewable Energy World or email newsletter today at no cost and receive the latest news and information.

 Subscribe Now

RELATED ARTICLES

offshore wind

Hitachi Plans to Add Production Line for Offshore Wind Parts

Chisaki Watanabe, Bloomberg Hitachi Ltd. plans to expand its reach into the market for offshore wind projects by adding a production line to make...
Renewable energy

Leading US ICT Companies Renewables Use at 14%, and Growing

Andrew Burger Electricity consumption in the global information and communications technology (ICT) industry is growing rapidly. An...
Wind farms

Western: Streamlined Environmental Review Process for Wind Farms in Midwest ‘Takes Effect Right Away’

Jennifer Delony Western in an Aug. 26 record of decision (ROD) adopted a standardized process for collecting information and evaluati...

NextEra Commits to Hawaii’s Clean Power Goal, Local Management

Lynn Doan, Bloomberg NextEra Energy Inc. and Hawaiian Electric Industries Inc. made 50 new commitments as part of their proposal to merge ...

PRESS RELEASES

Canadian Solar Wins Five Solar Power Projects Totaling 185 MW in Brazil

These power projects were won under a 20-year Power Purchase Agreement (PPA) with the B...

$100 Off of 5-day Advanced PV Project Experience. Download a Topic Schedule.

Assemble, ground, energize, and commission a complete grid-tied SolarEdge system from s...

Intersolar AWARD „Solar Projects in India“ – Applications being accepted until September 18

The Intersolar AWARD in the category Solar Projects in India honors projects in the fie...

National Thought Leaders to Present on Today's Clean Energy Issues & Trends During IREC's 3iForum at Solar Power International

"An encore to the standing-room-only sessions the past two years, IREC again brings som...

FEATURED BLOGS

Washington, DC Bridges the Solar Gap

The District of Columbia has enjoyed 15 years of strong economic growth. But prosperity is spread unevenly across the...

Sell Through Hypothesis

You first learned to hypothesize, or make educated guesses, in grade school science class. Now it’s time to ref...

Cronimet / THEnergy study: In solar for mines size does not always matter - Reducing CAPEX with energy efficiency and load shifting

Munich, September 2015. Mining companies are constantly gaining interest in solar solutions because frequently solar ...

Final Program Now Available for GRC Annual Meeting & GEA Geothermal Energy Expo

GRC Annual Meeting & GEA Geothermal Energy Expo - Final Program from

FINANCIAL NEWS

David Appleyard is a contributing editor. A freelance journalist and photographer, he has some 20 years' experience of writing about the renewable energy sector and is based in Europe.

CURRENT MAGAZINE ISSUE

Volume 18, Issue 4
1507REW_C11

STAY CONNECTED

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

SOCIAL ACTIVITY

Tweet the Editors! @jennrunyon

FEATURED PARTNERS



EVENTS

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...

Doing Business in South Africa – in partnership with GWEC, the Glob...

Wind Energy in South Africa has been expanding dramatically, growing fro...

Distributed Wind Energy Workshop

Description: Distributed wind energy is electricity that is produced for...

COMPANY BLOGS

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...

NEWSLETTERS

Renewable Energy: Subscribe Now

Solar Energy: Subscribe Now

Wind Energy: Subscribe Now

Geothermal Energy: Subscribe Now

Bioenergy: Subscribe Now  

 

FEATURED PARTNERS