Fugro's East Anglia Two survey award is a small contract that reveals how offshore wind installation is being industrialised

Fugro has won a contract from Cadeler to carry out post-installation seabed surveys at East Anglia Two (EA2), the 960 MW ScottishPower Renewables (Iberdrola) project about 33 km off the Suffolk coast. The scope is narrow and unremarkable on its own: 64 monopile locations, inspected by a work-class FCV 600 ROV deployed from a Cadeler installation vessel, starting in early 2027. Value and duration were not disclosed.

The interest lies less in the award than in what it says about how offshore wind construction campaigns are now organised — and in the timing, which slots neatly into a supply chain that is already moving.

What the survey actually is

"Post-installation seabed survey" is a deceptively broad label. Around a monopile it typically bundles three things:

• Positional verification. Confirming that each pile's as-installed coordinates, heading and tilt (verticality) match design tolerances — normally centimetres of deviation over a pile of 10 m-plus diameter and up to 120 m length.
• Seabed and scour inspection. Establishing a baseline of the seabed condition around the pile immediately after driving, before hydrodynamic scour and any scour-protection works alter it. That baseline is what future integrity assessments are measured against.
• Debris and as-laid checks. Confirming nothing was left on the seabed that could foul later cable-lay or turbine installation.

The choice of a work-class ROV rather than a hydrographic survey vessel is the telling detail. Fugro's FCV 600 is built for inspection-class work — subsea data capture plus light intervention — and operation from Cadeler's own jack-up avoids mobilising a dedicated vessel. The survey becomes a bolt-on to the installation campaign rather than a separate offshore operation. That is materially cheaper per pile, but it also means the survey crew inherits the installation vessel's weather windows and schedule risk.

The sequencing that matters

The award confirms a 2027 offshore start for EA2, consistent with Cadeler's November 2024 firm contracts, which projected EUR 360–382 million of revenue for transporting and installing 64 foundations and 64 turbines. Offshore works were then flagged to begin in 2027; IQIP has separately been contracted to rent Cadeler a Hydrohammer IQ6 with Pulse for the 64 piles, with the campaign reported to start in March 2027.

Two dates bear scrutiny. Sif stated that monopile and TP production for EA2 would begin in H2 2026, having signed the foundation contracts in October 2024 against a 210 kiloton firm order book. Smulders has already upended the first of the 64 transition pieces. In other words, the steel is being rolled and fabricated now, in the same months that Fugro is contracting the inspection of where it will end up standing. The survey award is therefore a schedule confirmation as much as a service contract.

Why Cadeler is bundling survey into the vessel

Cadeler already has Fugro positioning and construction support aboard Wind Ally at Ørsted's Hornsea 3, where Fugro's InclinoCam technology is measuring monopile tilt and vertical alignment during driving across 197 piles. The EA2 award extends that relationship from the installation phase into the post-installation phase.

The commercial logic is the same in both cases: offshore days are the scarce resource. A jack-up that is already on location can carry a survey payload and a Fugro crew at marginal cost, whereas a standalone ROV vessel would need its own transit, mobilisation and weather window. For Cadeler, that supports the pitch it made when winning the EA2 work — fleet flexibility across an A-class newbuild and an existing O-class unit.

Wind Ace, delivered in July 2026 from COSCO's Qidong yard after a two-year build, is the centrepiece. Cadeler describes it as able to carry six sets of 2XL monopiles per load on 5,600 m² of deck with more than 17,600 t of payload. For EA2's 64 piles, that implies roughly eleven loads if the vessel operates at full capacity — a figure that carries directly into the project's vessel-day economics and, by extension, into how tightly the survey scope must fit around installation cycles.

The steel angle

The foundation package is where the UK project connects to European fabrication capacity. Sif is producing the monopiles at its expanded Maasvlakte 2 terminal in Rotterdam, which offers a 628 m deep-sea quay at around 15.5 m nautical depth for load-out — the kind of heavy marine infrastructure that has become a binding constraint for XXL monopile logistics. Sif's stated capability runs to monopiles of 120 m length, 11 m diameter and over 2,500 t, which is the class EA2's machines require.

The transition pieces split the work: primary steel at Sif's Roermond facility, outfitting — secondary steel, ladders, platforms, cable trays, coatings — by Smulders at Hoboken in Belgium. For steel-market readers, EA2 is a useful marker of where European fabricated tonnage for offshore wind is actually concentrated: Dutch rolling and assembly for monopiles, Belgian outfitting for TPs, Chinese shipbuilding for the installation vessel, and British project demand sitting on top of a largely continental supply chain.

What to watch

• Whether the survey stays a bolt-on. If Fugro's ROV work runs on the installation vessel, any slippage in the pile-driving campaign drags the survey with it. Watch for a separate survey vessel appearing in the schedule, which would signal that Cadeler has decided the coupling is too tight.
• The O-class assignment. Which of Wind Orca or Wind Osprey joins Wind Ace at EA2 is not public. The split of work between the two — foundations on the A-class, turbines on the O-class, or interleaved — will shape the 2027–28 vessel market in the southern North Sea.
• Relevance beyond EA2. Iberdrola has three further East Anglia projects in its pipeline. Survey and positioning frameworks established on EA2 are the obvious template for what follows, and Fugro's incumbency at Hornsea 3 and now EA2 makes it the default counterparty.

A 64-pile inspection contract, in isolation, is routine. Read alongside Sif's fabrication timeline, Cadeler's vessel deployment and the Hornsea 3 precedent, it is a reliable indicator that EA2 has moved from contracting to execution — and that the industry's answer to installation cost pressure is to keep surveyors on the installation vessel rather than on their own.

Figures marked as reported are taken from company announcements and trade press; the load-count and vessel-day arithmetic is the author's estimate.