Offshore Wind Ports, Operations & Maintenance and Assembly
A Leading Partner in Offshore Wind
ABLE is a trailblazer in Offshore Wind Marshalling Ports, Operations & Maintenance, and Assembly. Our legacy of excellence is rooted in Able Seaton Port (ASP), and we are now expanding our capabilities across a growing network of strategically located port sites. With robust and rapidly evolving renewable infrastructure, we are well-positioned to support the accelerating demands of the offshore wind sector.
ASP holds full planning permissions for offshore wind manufacturing, pre-assembly, storage, and related activities. The site features existing manufacturing and warehouse facilities, with approvals in place for new construction as needed. This unique setup enables clients to manufacture and deploy from a single location—streamlining operations and allowing for rapid response to evolving project requirements.
ABLE is equipped to accommodate virtually all offshore vessels operating in the North Sea. Our ports are supported by a comprehensive suite of heavy-lift equipment, including large mobile harbour cranes, crawler cranes, SPMTs, and specialised plant for handling offshore wind components.
Our vision drives every aspect of our Offshore Wind Operations and Services:
Build • Install • Operate • Maintain • Recycle
Operations & Maintenance
ABLE offers an Integrated Port Network for Offshore Wind, helping to power the UK’s energy transition. We offer support from First Pile to Final Bolt.
ABLE operates a uniquely positioned network of ports on the River Tees and Humber that serve every stage of an offshore wind farm’s lifecycle.
With decades of heavy-lift experience, extensive quayside infrastructure and 11,000+ acres of strategic landholdings, ABLE provide an end-to-end solution for construction, installation, operations, maintenance and ultimately responsible recycling.
Comprehensive Offshore Support
ABLE supports all offshore wind farm lifecycle phases with extensive marshalling and O&M port networks.
Strategic Multi-Port Network
ABLE operates multi-port facilities along the River Tees and Humber, backed by large landholdings and Freeport benefits.
Sustainability Commitment
ABLE is focused on carbon-neutral energy supply and enabling the UK’s energy transition through sustainable port operations.
Vision for Energy Transition
Dedicated to powering the UK’s energy transition by enabling build, install, operate, maintain, and recycle phases.
One Network – Every Stage of the Offshore Wind Lifecycle
Able Seaton Port (ASP)
UK’s leading marshalling yard for foundations, transition pieces, towers, nacelles/turbines, blades, and export/array cables. A proven track record delivering for Ørsted, RWE, Vestas, GE, SSE, Shell and more.
Able Humber Port (AHP)
The future UK offshore wind cluster port: new manufacturing quays, direct link to ASP’s marshalling experience, designed to handle >3 GW of turbines per year by 2028.
Able Middlesbrough Port (AMP)
Deep-draft expansion underway to service crew-transfer vessels (CTVs), service-operation vessels (SOVs) and long-term O&M campaigns.
Able Clarence Port (ACP)
New O&M-focused quay at the heart of Teesside Freeport for operations support, secondary steel fabrication, storage, and component repairs.
Billingham Reach Industrial Estate (BRIE) with Quays
Improved port quays for O&M logistics, small-component handling, and project cargo in support of regional wind farms.
Why Developers & OEMs Choose ABLE
Strategic Infrastructure
ABLE’s ports feature heavy-lift quays, deep-water berths, and extensive lay-down areas for large-scale project support.
Proven Industry Partnerships
ABLE has a strong track record delivering projects for leading offshore wind developers and OEMs.
Sustainable & Cost Efficient
Teesside and Humber Freeport incentives and a carbon-neutral micro-grid future vision, offer environmental benefits and cost savings.
Excellent Connectivity
Ports are well-connected via road, rail, and energy grids, perfectly located to major UK offshore wind zones for efficient logistics.
Serving the Worlds Leading Offshore Wind Players
Support for Major Developers
ABLE partners with the leading offshore wind developers, supporting projects like Hornsea and Dogger Bank for clean energy growth.
OEMs and O&M Contractor Services
ABLE supports OEMs and contractors with infrastructure for efficient logistics and long-term component maintenance.
Marine Logistics Advantages
Deep-draft berths and specialised quays facilitate marine logistics providers in smooth offshore wind operations.
Integrated Freeport Services
ABLE’s integrated services and Freeport benefits streamline customs, freight forwarding, and cargo handling.
Built to Outperform – From Marshalling to Maintenance
Comprehensive Marshalling Services
ABLE offers full-package marshalling for turbine components including foundations, towers, blades, transition pieces nacelles and cables.
Dedicated O&M Facilities
Able Clarence Port, Able Middlesbrough Port and Billingham Industrial Reach provide specialised support for Maintenance, Fabrication, and Repairs.
Strategic Competitive Advantage
ABLE’s integrated lifecycle approach and Freeport tax benefits outperform competitors with fragmented services.
Scalable Capacity for Growth
Backed by 11,000+ acres of strategic land, Freeport benefits, and a carbon-neutral energy supply from our micro-grid vision.
Build • Install • Operate • Maintain • Recycle
Case Studies - Historical Expertise in Delivering Offshore Wind Projects
Hornsea One Offshore Wind Farm
One of Able’s port facilities on the River Tees - Able Seaton Port (ASP) provided the installation base for the foundation package for Ørsted’s 168 OWT, 1,200MW Hornsea One offshore wind farm.
The contract extended over an intensive 13-month period and was completed at the end of January 2019. Able provided both the facility and the onshore logistics and the project was completed without incident and, critically without any Lost Time Incidents – reflecting the strong and collective partnership working of all parties.
It included the safe transportation, using ABLE’s own fleet of SPMTs handling 550 components and supporting accessories which included:
Monopiles – the heaviest at 993 tonnes and the longest at 71 meters.
Transition Pieces – 28m tall weighing c. 360 tonnes;
Anode Cages and other related items.
There were 107 Transition Pieces - manufactured on the Tees, by Offshore Structures Britain (OSB) and Wilton Engineering - that were delivered and transferred direct from a barge on to the collecting installation vessel at ASP.
All the Monopiles were sourced from EEW’s Rostock facility in Germany and the balance of the Transition Pieces from Bladt Industries based in Aaborg, Denmark. The deliveries were made by SAL’s 15,000 tonne ship the MV Svenja.
The installation programme was led by the vessel the GeoSea Innovation which was able to jack-up adjacent to the quay at ASP and utilise its c. 1,500 tonne crane capacity. It was assisted by two of her sister ships – the Sea Installer and the Sea Challenger – which installed most of the Transition Pieces.
The project set potentially new standards in productivity, most notably the safe load-out of four monopiles within a three-hour period.
Triton Knoll Offshore Wind Farm
From September 2020 ABLE provided the installation base for the turbine package for RWE’s 860MW Triton Knoll offshore wind farm with Vestas Offshore Wind as the actual occupier. It involved the deployment of 90 turbines, the assembly of 3 tower sections per turbine and the marshalling of 270 turbine blades.
GeoSea/DEME provided the offshore installation vessels.
ABLE has pioneered, as evidenced by both the Hornsea One and Triton Knoll projects, an innovative business model that meets the needs of the offshore wind sector. To this end ABLE provides fixed lump sum prices for the use of the facility AND the provision of the onshore logistics required by the project.
This includes, as necessary, the unloading of vessels, the movement of components to storage, the provision of load grillage for the storage of equipment, the ‘picking’ of components and the assembly and movement of products back to the quayside for loading/collection.
Dogger Bank Offshore Wind Farm
Able Seaton Port is the marshalling base for Dogger Bank Wind Farm, the largest wind farm in the world, utilising GE’s 13/14MW Haliade-X as the turbine powering the 3 phases of the project. This has enabled the creation of 120 new skilled jobs during the construction phase.
The campaign to install the first of 277 turbines at the world’s largest offshore wind farm is now underway, marking a major advance in the industry and speeding up the transition to a cleaner, more secure energy system.
The 260m tall turbines – which are almost twice the height of the London Eye – will be installed c.80 miles off the coast of Yorkshire using a specialist vessel with a lifting capacity of 3,200 tonnes, the largest of its kind in the world.
GE Renewable Energy established their marshalling harbour activities at ASP in November 2022 which served as the base for turbine service equipment, installation and commissioning activities for Dogger Bank A, B and C. This sees the delivery of component parts for each of GE’s Haliade-X 13/14MW wind turbines to our specialist port, including the nacelle, three tower sections and three 107m long blades, for pre-assembly on-site at ASP prior to transport out to the North Sea for installation.
The contract represents the largest single order ever for offshore wind turbines, confirming 277 turbines for Dogger Bank A, B and C installed off the north-east coast of England in 3 phases.
The scale of Dogger Bank Wind Farm is immense, occupying an area almost as large as Greater London, on seabed that once formed a land bridge between the UK and Europe. When fully complete it will have an installed capacity of 3.6GW of renewable electricity – more than two and a half times the size of the next largest offshore wind farm – and be capable of producing enough clean energy to power the equivalent of 6 million homes annually.
At 260m, the turbine is almost twice the height of the London Eye and equivalent in height to the iconic Rockefeller Centre in New York.
Each turn of its 107m wide blades will produce enough clean energy to power an average UK home for 2 days.
Once fully operational, Dogger Bank will generate annual CO2 savings equivalent to the emissions of nearly 1.5 million average internal combustion engine petrol cars.
The installation vessel, Jan de Nul’s Voltaire, is the largest offshore jack-up installation vessel ever built and is the first ultra-low emission ship of its kind.
From 2026, Siemens Gamesa will be utilising ASP for the installation of the offshore wind turbines for Ørsted’s Hornsea 3 offshore wind farm.
For the past seven years, ASP has been fully utilised in the installation of wind turbine components. Both Able UK and the ASP facility have consistently demonstrated their capabilities, successfully installing more gigawatts (GW) of offshore wind turbines (OWT) than any other installation yard in the UK.
These innovative projects combined with the future potential of Able Humber Port - Europe’s largest new port development and a key part of the Humber Freeport, underscore the Able Group’s dedication to sustainable energy. These initiatives not only showcase ABLE’s current efforts but also highlight the ongoing commitment to renewable energy for the future.
Able Humber Port
Able Humber Port (AHP) is a port development on the south bank of the Humber Estuary on the East Coast of the United Kingdom. It is a nationally significant infrastructure project (NSIP) and is recognised as a core development within the UK Government Infrastructure Roadmap. AHP represents a singular opportunity for the UK to establish a world-scale industrial cluster and enable the UK to maximise the economic development potential provided by the combination of the emerging market and supportive policies.
AHP can assist the Offshore Wind Industry by providing the following services:
Operational hub/marshalling harbour for the construction of UK and European, North Sea offshore wind projects.
Port location for the establishment of meaningful supply chain activity and component manufacture.
AHP provides a strong and sustainable proposition to offshore wind farm developers and manufacturing partners within the supply chain.
AHP’s core objective is to provide a more efficient UK port facility particularly to enable the offshore renewables sector to reduce its costs and maximise efficiency and profitability.
The confirmation of the major offshore wind players, as AHP tenants will provide a significant enhancement to the region’s economy and endorse the Humber as the cornerstone for the enlargement of an international scale offshore wind cluster in the UK.
AHP ultimately provides the sector with a greater opportunity to reduce its overall costs (lowering the overall costs of the delivered component) and provides very significant benefits to the local and UK economy in terms of job creation and export potential.
