One sentence summary – Vattenfall has awarded a contract to DEME Offshore for rock berm installation works at the Hollandse Kust Zuid offshore wind farm site in the Netherlands, with the objective of reducing risk and enhancing the lifetime integrity of the Inter Array Cables (IAC) by stabilizing them with rock berms.
At a glance
- Vattenfall has awarded a contract to DEME Offshore for rock berm installation works at the Hollandse Kust Zuid offshore wind farm site in the Netherlands.
- The rock installation works are scheduled to take place between the fourth quarter of 2023 and the first quarter of 2025.
- Vattenfall’s objective with this project is to reduce risk and enhance the lifetime integrity of the Inter Array Cables (IAC) by stabilizing them with rock berms.
- Fugro, a global geo-data specialist, has been engaged by Vattenfall to carry out inspections of the IAC and conduct scour pad surveys using advanced technology.
- The Hollandse Kust Zuid offshore wind farm, jointly owned by Vattenfall, BASF, and Allianz, is expected to be inaugurated later this year as the world’s first subsidy-free offshore wind farm.
The details
Vattenfall, a prominent energy company, has recently awarded a contract to DEME Offshore.
The contract is for rock berm installation works at the Hollandse Kust Zuid offshore wind farm site in the Netherlands.
The rock installation works are scheduled to commence between the fourth quarter of 2023 and the first quarter of 2025.
Vattenfall’s objective with this project
is to reduce risk and enhance the lifetime integrity of the Inter Array Cables (IAC).
This will be achieved by stabilizing the IAC with rock berms.
Before the rock berm installation, Vattenfall had engaged Fugro, a global geo-data specialist.
Fugro was tasked to carry out inspections of the IAC and conduct scour pad surveys.
These surveys are currently in progress and are expected to be completed by next month.
Fugro is using its advanced technology for these surveys.
This includes the Blue Essence uncrewed surface vessel (USV) and an electric remotely operated vehicle (eROV) named Blue Volta.
This innovative technology reduces fuel consumption by up to 95% compared to conventional support vessels.
It also eliminates the need for personnel to work in high-risk offshore environments.
The Hollandse Kust Zuid offshore wind farm is located approximately 20 kilometers off the Dutch province of Zuid-Holland.
The wind farm is jointly owned by Vattenfall, BASF, and Allianz.
It consists of 139 Siemens Gamesa 11.0-200 DD wind turbines.
This is one less than originally planned due to a damaged foundation.
The damaged foundation is scheduled to be removed in 2024, and it will not be replaced.
As for the wind farm’s progress
Hollandse Kust Zuid is expected to be inaugurated later this year.
It is the world’s first subsidy-free offshore wind farm.
This showcases the advancements in renewable energy technology and the commitment to clean energy sources.
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| offshorewind.biz |
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| – Vattenfall has contracted DEME Offshore for rock berm installation works at the Hollandse Kust Zuid offshore wind farm site in the Netherlands. – |
| The rock installation works will take place between the fourth quarter of 2023 and the first quarter of 2025. – Vattenfall aims to reduce risk and increase the lifetime integrity of the Inter Array Cables (IAC) by stabilizing them with rock berms. |
| – Prior to the rock berm installation, Vattenfall contracted Fugro to carry out IAC inspections and scour pad surveys. – |
| The surveys are currently ongoing and are expected to be completed next month. |
| – Fugro is using its Blue Essence uncrewed surface vessel (USV) with an electric remotely operated vehicle (eROV) called Blue Volta for the surveys. – |
| The technology used by Fugro reduces fuel consumption by up to 95% compared to conventional support vessels and eliminates the need for personnel to work in high-risk offshore environments. – |
| The Hollandse Kust Zuid offshore wind farm is owned by Vattenfall, BASF, and Allianz. |
| – It is located 20 kilometers off the Dutch province of Zuid-Holland. – |
| The wind farm features 139 Siemens Gamesa 11.0-200 DD wind turbines, one less than originally planned due to a damaged foundation. – |
| The damaged foundation will be removed in 2024 and will not be replaced. |
| – Hollandse Kust Zuid is expected to be inaugurated later this year and is the world’s first subsidy-free offshore wind farm. |
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