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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