Cadeler locks three vessels into UK offshore wind exclusivity deal

Cadeler has reserved three installation vessels for a large-scale UK offshore wind farm from around 2030, under an exclusivity agreement that has not yet been converted into a firm contract. That caveat matters: the Danish contractor disclosed the arrangement without naming the client, and exclusivity is a step short of committed revenue.

The planned campaign splits by vessel class. One A-class vessel and one O-class vessel would handle foundation installation, while a P-class unit would carry out turbine installation, according to the company's announcement.

What lies behind the deal?

Chief executive Mikkel Gleerup framed the agreement as validation of Cadeler's positioning in a market moving toward ever-larger projects. "Another endorsement of the company's ability to deliver increasingly large and complex offshore wind developments," he said — or words to that effect, as reported by the company. Shippers and project developers reading that statement should note what it does not say: no contract value, no turbine count, no foundation specifications, and no client identity were disclosed.

The commercial logic, however, is legible. An exclusivity agreement takes three high-specification vessels off the open market for a defined window, tightening availability for competing UK and North Sea projects in the early 2030s. For developers still securing installation capacity, that is one fewer contractor fleet to bid against.

Dogger Bank anchors the order book

The new agreement builds on firmer ground secured earlier this month, when Cadeler won a contract for turbine transportation and installation at the 1.2GW Dogger Bank C wind farm in the UK North Sea.

That deal carries hard numbers. Cadeler's newbuild Wind Apex will make its operational debut in the third quarter of 2027, working alongside an existing installation vessel to install 87 turbines of 14MW each. Do the arithmetic: 87 turbines at 14MW apiece is roughly 1.2GW — consistent with the phase's stated capacity.

The Wind Apex is scheduled for delivery in the first half of 2027, and will be available for work on the remaining phases of the wider 3.6GW Dogger Bank development. In other words, a vessel arriving in 2027 is already pencilled in for work stretching across multiple project phases.

Fleet expansion, priced in euros

Cadeler currently operates 11 offshore wind installation vessels. The fleet is set to grow: another A-class newbuild and two T-class foundation installation vessels are scheduled for delivery by 2031.

The T-class order carries a concrete price tag. Cadeler placed it with China's COSCO Shipping Heavy Industry in August, for approximately €805m combined — about $935m at the time, or roughly $467m per vessel. That figure signals the capital intensity of the foundation-installation segment, where single vessels now command near-half-billion-dollar commitments.

The choice of a Chinese yard also reflects shipbuilding economics that European offshore contractors have largely accepted: heavy installation tonnage is cheaper and faster to source from COSCO's yards than from European builders with fuller order books.

What comes next?

For Cadeler, the sequence runs: Wind Apex delivery in the first half of 2027, its operational debut at Dogger Bank C in Q3 2027, T-class and additional A-class arrivals by 2031, and — if exclusivity converts — a three-vessel UK campaign from around 2030. Each date depends on yard delivery schedules and client final investment decisions, neither of which is guaranteed. The trajectory, though, is clear: Cadeler is betting that UK offshore wind installation demand in the early 2030s will absorb a fleet that is materially larger than today's 11 vessels.