HVDC HelWin2

HVDC HelWin2 is a high voltage direct current (HVDC) link built to transmit offshore wind power to the power grid of the German mainland. The project differs from most HVDC systems in that one of the two converter stations is built on a platform in the sea. Voltage-Sourced Converters with DC ratings of 690 MW, ±320 kV are used and the total cable length is 130 km. The project was built by the Siemens/Prysmian consortium with the offshore platform built by Heerema^[1][2] in Zwijndrecht, Netherlands. The topside measures 98 m x 42 m x 28 m and weighs 10200 tonnes. The project was handed over to its owner, TenneT, in June 2015, the fourth such project to be completed in 2015.^[3]

HelWin2
The HelWin Beta platform topside.
Map of HelWin2
Location
Country	Germany
From	HelWin Beta Offshore Converter Platform
Passes through	North Sea
To	Büttel Converter Station
Ownership information
Owner	TenneT
Operator	TenneT
Technical information
Total length	130 km (81 mi)
Power rating	690 MW
DC voltage	320 kV

Connected wind farms

• Amrumbank West (288 MW)
• Kaskasi (342 MW)

See also

• Germany portal
• Energy portal

• High-voltage direct current
• Offshore wind power
• HVDC BorWin1
• HVDC BorWin2
• HVDC BorWin3
• HVDC DolWin1
• HVDC DolWin2
• HVDC DolWin3
• HVDC HelWin1
• HVDC SylWin1