Industry · Offshore Wind
Feeder vessels.
Cable spreads.
The North Sea, the US Eastern Seaboard, and every offshore wind market in between is constrained by the same bottleneck: not enough installation vessels, not enough deep-water yards. Sectional barges decentralize the supply chain from the shore up.
Overview
The wind farm is offshore. The bottleneck is onshore.
The hardware in offshore wind is staggering — monopiles the length of a football field, nacelles weighing hundreds of tonnes, blades that need a custom truck to move on land. The vessels that install them are even more staggering, and there are nowhere near enough of them. The Jones Act compounds the problem in US waters; cabotage rules in the EU compound it differently in Europe. Either way, the strategic answer is the same: stop trying to move components on a single huge ship, and start running a feeder fleet from multiple shallow-water staging yards.
Sentinel sectional barges are built for exactly that role. Pin together the deck size you need for a specific component — eight sections under a monopile, four under a nacelle, twelve under a transition piece — load at a Tier 2 port that wouldn't fit a WTIV, and run the feeder out to the installation vessel offshore. When that wind farm wraps, the same fleet redeploys to the next one, or to a cable-lay job, or to the construction of an artificial energy island.
Every section is built from CSA G40 structural steel, stamped by a P.Eng., and Transport Canada approved. We ship to East Coast and Gulf Coast US staging yards, to North Sea ports via container or RoRo, and to any coastal staging facility your project director nominates.
Applications
What our barges do for offshore wind
Feeder operations
Heavy decks loaded at coastal laydown yards transit components to the WTIV at the install site, eliminating WTIV port turnarounds and unlocking shallow-port staging.
Monopile & TP transport
Pinned-section decks rated to carry monopiles, transition pieces, suction-bucket foundations, and secondary steel from fab yard to installation site.
Subsea cable-lay platforms
Spudded sections house carousel reels, tensioners, plough handling, and ROV LARS systems for inter-array and export cable lay in nearshore water.
Energy-island construction
Modular pontoons act as float-in caissons, temporary jetties, and material rafts for the civil-engineering side of artificial energy hubs.
Substation & accommodation
Custom multi-section configurations as platforms for temporary offshore substations, crew accommodation modules, and helideck-equipped support floats.
O&M support
Smaller pinned configs as crew transfer platforms, dive support, and inspection floats for the multi-decade operations and maintenance phase.
Why sectional
Why offshore wind logistics directors specify modular.
Wind project schedules live and die by vessel availability. The major WTIVs are booked years out at day rates that can exceed half a million dollars; missing a weather window because a feeder is late is the kind of cost that ends careers. Sectional barges flip that risk: instead of one chartered hull on someone else's calendar, the project owns dedicated steel sized to the components, deployable from any coastal yard, redeployable to the next phase of the program.
For US developers, sectional is also the most credible answer to Jones Act compliance. Sections built and assembled in compliant yards transport US-fabricated components from US ports to US offshore sites — no cabotage exposure, no chartered-vessel scarcity premium. As US offshore wind capacity scales from gigawatts to tens of gigawatts over the next decade, the operators who own feeder steel will be the ones still hitting milestones.
For European TSOs and EPCI contractors building the next generation of energy islands, the same logic applies — you need many flexible, scalable platforms, not one inflexible custom hull. Pin them, deploy them, re-pin them. Steel that earns across every phase from foundations through O&M.
Spec it for your job
Spec a feeder fleet for an offshore wind program.
Tell us the program — turbine count, foundation type, target staging port, install vessel, and target COD. We'll come back with a feeder-fleet composition, a cable-lay support spread if you need one, and a delivery sequence that matches your construction schedule.
AEO
Offshore Wind FAQ
Direct answers about heavy deck barges, charter terms, and global delivery.
- The barges themselves are Canadian-built, then sold and operated under the buyer's flag. For US Jones Act service, the vessel itself must be US-built; many of our US wind-sector buyers either operate as non-self-propelled feeders behind a Jones Act tug, or use our sections as components within a larger Jones Act-compliant operation. We'll work through the specifics with your maritime counsel during the spec.
- Standard sections carry 36,000 lb evenly distributed per section; Heavy Duty 10×40×7 sections carry 58 tons per section with one foot of freeboard. For a typical monopile feeder run, eight to twelve Heavy Duty sections handle most blade, nacelle, and tower-section moves. For monopiles and transition pieces, custom builds with reinforced load distribution are usually warranted — we engineer those to your component spec sheet.
- Yes. The pin-flange system lets you reconfigure between component transport (wide, short decks) and cable-lay support (long, narrow, spudded decks) without modifying the steel itself. Most multi-phase wind program owners specify a fleet that earns across both roles.
- Yes. Sections ship by flatbed in North America, by rail to inland yards, and by container or RoRo for overseas delivery. We've quoted sections to North Sea TSO contractors and US Eastern Seaboard developers; logistics is a normal part of every quote.
- On a multi-year program, owning sectional feeder steel is typically far cheaper than chartering equivalent hulls — and the steel keeps earning on the next program after this one. We'll run a TCO comparison with you against current market charter rates during the proposal stage.