Hai Long Offshore Wind: Taiwan Delivers Record Jackets
Lodewijk van Helden
Sunday, August 17, 2025
Image source: Hai Long Offshore Wind
Taiwan delivers record-breaking jackets for Hai Long Offshore Wind
Taiwan’s offshore wind sector just reached a major milestone. The Hai Long 2a project has received 21 massive three-legged jacket foundations – each standing 90 metres tall and weighing about 2,000 tons.
Built by Century Wind Power, these jackets are the largest and heaviest ever produced for a Taiwanese wind farm. Their delivery is more than a technical feat – it’s proof that Taiwan’s local supply chain is capable of delivering world-class offshore infrastructure.
“Our collaboration with Century Wind Power has been essential to the project’s progress and proves the strength and reliability of Taiwan’s local industry,” said Tim Kittelhake, CEO of Hai Long.
The Hai Long project at a glance
- Scale: Hai Long is split into three sites – 2a (294 MW), 2b (224 MW) and 3 (504 MW). Together they will provide over 1 GW of capacity.
- Innovation: the jackets were installed using Taiwan’s unique Twin Tower lifting system, a major step forward in large-scale offshore installation.
- Impact: once fully operational, Hai Long will supply clean energy to more than one million homes across Taiwan.
- Timeline: first power has already been achieved. Full commercial operation is expected between 2026–2027.
Why jacket foundations matter
Jacket foundations are critical for offshore wind farms in deep waters, where monopiles are no longer sufficient. With their three-legged structure, they provide stability for large turbines even in harsh marine conditions.
Delivering jackets of this size requires precise engineering, advanced welding, and strict quality control. For Taiwan, the successful completion marks not only a technical achievement, but also a strategic step towards energy independence and a stronger offshore supply chain in Asia-Pacific.
Offshore wind momentum in Asia-Pacific
The Hai Long project is part of a much bigger story: Asia-Pacific is becoming one of the fastest-growing regions in offshore wind. Taiwan, South Korea and Japan are heavily investing in new capacity, with the aim to reduce reliance on imported fossil fuels.
For contractors and developers, this means increased demand for:
- Cable engineering & installation expertise
- Specialised foundation design and testing
- Supply chain partnerships that can scale quickly
Why this matters for WolfWindWorks
At WolfWindWorks, we know what it takes to execute high-stakes subsea cable and foundation projects. From tender support to termination, our team brings hands-on expertise, practical solutions and real-world delivery.
The Hai Long development proves once again that offshore wind projects demand scale, speed and precision – and the right partners to keep them on track.
👉 Looking for a partner who understands the complexity of large-scale offshore projects?
👉 Need strategic insight that secures execution and reduces risk?
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Frequently Asked Questions
What is the Hai Long offshore wind project?
Hai Long is a 1,022 MW offshore wind development off the coast of Changhua County, Taiwan. It is split into three sites – Hai Long 2a, 2b and 3 – and will be among the largest offshore wind farms in Asia-Pacific once complete.
How many homes will Hai Long power?
Once operational, the Hai Long wind farm will generate enough clean electricity for more than one million Taiwanese households.
Why are jacket foundations important in offshore wind?
Jacket foundations are used in deeper waters where monopile foundations are not feasible. They provide the stability needed to support heavy turbines in rough marine conditions.
When will Hai Long be fully operational?
The first power was produced in 2025. Full commercial operation is expected between 2026 and 2027.
Hi, I’m Lodewijk van Helden
Founder of WolfWindWorks
With over 15 years in offshore wind and subsea cable projects, I’ve worked across Europe and Asia on some of the industry’s most complex challenges. At WolfWindWorks, I share real-world insights and lessons learned to help contractors, developers, and EPCs deliver offshore projects smarter and safer.
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