8 Jacket skirt piles for Hai Long Sub Stations

DATE: January 21, 2025

8 JACKET SKIRT PILES FOR HAI LONG OFFSHORE WIND SUB STATIONS

During May and June 2024, the CAPE VLT-640 Tandem was deployed to install 8 piles with a diameter of 4.4 meter, a length of 103.5 meter and a maximum weight of 935t for two offshore sub stations for phase one of the Hai Long Offshore Wind project in Taiwanese waters.

CDWE’s Green Jade, Taiwan’s first 4,000t crane vessel with DP capabilities, was used for the project. The main reason for choosing for the CAPE VLT was to prevent pile run. However, the efficiency of using the CAPE VLT was proven during the project as well, with the quickest driving time of just 7 minutes for one of the piles to 35m penetration depth.

Find more project details below or contact Teun Verschoor for more information.


Application details

Application

Jacket pile installation

Pile

Jacket skirt pile

Water depth

36-56m

Penetration

35m

Fastest net driving time

7min

PILE DETAILS

Pile type

Skirt piles

Pile model

Straight

Pile length

103.5m

Pile weight

935t

Pile wall thickness

75mm

Pile diameter top

4.4m

Pile diameter bottom

4.4m

No. of piles

8

PROJECT DETAILS

Period

May ’24 – Jun ’24

Sea

Taiwan Strait

Country

Taiwan

Location

Hai Long Offshore Wind Farm, Taiwan

Market

Offshore Renewables

System/end usage

Offshore Sub Station

Operator or end customer

Hai Long Wind Power

Installation contractor

CDWE (DEME offshore & CSBC Corporation)

Type of vessel

Offshore Heavy Lift DP3 Installation Vessel

Name of vessel and owner

Green Jade, CDWE

Mode

Dynamic Positioning

Main Reasons for solution choice

UPENDING, LIFTING, DRIVING IN SINGLE OPERATION

IN COMBINATION WITH DP OPERATED VESSEL THE FASTEST WAY OF INSTALLING PILES

SELECTED EQUIPMENT

CAPE VLT-640

Equipment configuration

CAPE VLT-640 Tandem

Eccentric moment

1,280kgm

Max. line pull

1,913t

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