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SES Groups · Wind energy

From blade factory to grid connection, every wind package under control

Blades, nacelles, drivetrains, bearings, bolting, towers, foundations, cables and substations. Our resident inspectors and Project Quality Engineers follow wind suppliers in France and abroad, from the first article to the release note.

4+ yearsresident at an offshore wind nacelle factory
GWOcertified inspectors for nacelle and offshore work
18wind farm equipment zones covered
Internationalinspector pool: France, Europe, Morocco, Turkey, Asia

The wind farm, zone by zone

Click any component on the diagram to see its role, what we inspect and our references with manufacturers of that equipment family.

Wind farm equipment schematicWind turbine from blades, hub and nacelle drivetrain to the turbine transformer, supported by tower and offshore foundations, then power export through inter-array cables, offshore substation, export cable and onshore substation to the grid.WIND TURBINE (WTG)FOUNDATIONSPOWER EXPORTNACELLE ASSEMBLY BladesComposite, root inserts Hub & pitchCast hub, blade bearings GearboxDrivetrain, main bearing GeneratorPMG or DFIG ConverterPower electronics TransformerWTG MV, 66 kV Plates & castingsHeavy plates, forgings Yaw systemYaw bearing, drives TowerSections, flanges BoltingStuds, nuts, tensioning Welding & NDTAll steel structures Monopile & TPFixed foundations Floating & mooringFloaters, anchors, lines Grid connectionHV grid, TSO interface Onshore substationTransformers, GIS Export cableHVAC / HVDC Offshore substationTopside, transformers Inter-array cables66 kV array strings
Mechanical load pathElectrical powerOffshore foundations

Tip: the nacelle label and each export component are clickable too.

Supplier surveillance & project quality engineering

Beyond one-off inspections, SES Groups acts as your Project Quality Engineer during project execution: we follow each supplier from purchase order to release, and we visit their shops frequently to make sure your project specifications are applied, not just signed.

Kick-off & pre-inspection meeting

PIM at the supplier's premises: scope, sub-suppliers, schedule, hold and witness points, reporting rules.

Specification applicability review

Project specs vs. supplier standards, compliance matrix, flow-down to sub-suppliers, technical queries and deviation requests.

ITP & quality plan approval

Review and approval of ITPs, WPS/PQR, NDT procedures, test procedures and painting systems before production starts.

Frequent shop visits

Regular in-process surveillance or resident inspector: materials, welding, machining, assembly and coating.

NCR & deviation management

Raising and tracking non-conformances, root cause, corrective actions, concession files and their close-out.

Progress & expediting reports

Weekly status against schedule, critical-path materials, sub-supplier follow-up and early warnings.

FAT & final inspection

Witnessing factory acceptance tests, dimensional and visual checks, packing and preservation before shipment.

Final documentation & release

MDR / data book review, EN 10204 3.1/3.2 certificates, punch list close-out and inspection release note.

How we make specifications applicable

  • Clause-by-clause compliance matrix between client specifications, codes and the supplier's own standards
  • Clear acceptance criteria agreed up front: welding, NDT, tolerances, coating, testing
  • Requirements flowed down to sub-suppliers (castings, forgings, plates, bolting, cables)
  • Technical queries and deviation requests raised early, before they turn into NCRs
  • On-site coaching of supplier QC teams, so quality is built in rather than inspected in

Track record in supplier follow-up

30+pre-inspection meetings held
100+expediting and progress follow-ups
50+MDR / MRB reviews and sign-offs
Residentinspectors at nacelle factories, foundries and fabrication shops
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A large, international inspector pool

Wind programmes need many inspectors, in many factories, for years. Our coordination desk draws on a large international pool of senior, GWO-certified inspectors, so we can cover a nacelle line, several blade shops and the foundation yards at the same time.

Who we deploy

  • Resident QA/QC inspectors for nacelle and blade factories
  • Electrical and HV inspectors for generators, converters, transformers and cables
  • Welding engineers (IWE, IWT) and tower fabrication specialists, with welding, NDT and coating inspectors for towers, monopiles, TPs, jackets and floaters
  • Project Quality Engineers to follow suppliers and sub-suppliers through execution
  • Commissioning teams mobilised for WTG, substation and cable start-up
  • Inspectors already deployed in France, Morocco, Turkey and Asia, and ready for long assignments elsewhere

Qualifications we select for

GWO Basic Safety Training (First Aid, Manual Handling, Fire Awareness, Working at Heights, Sea Survival)French electrical clearances (habilitations)CSWIP 3.1IWI / IWEISO 9712 level 2 and 3 (UT, PAUT, MT)FROSIO / NACEComposite and blade inspection experienceClient and agency approvals

We select, for each assignment, inspectors holding the qualifications your ITP and site rules require.

Our services

Quality Inspector, Project Quality Engineer and Package Manager profiles, available at the supplier's premises and on site.

Shop inspection

ITP review and sign-off, hold points, FAT and type test witnessing, reports and release notes.

Welding & NDT

WPS/PQR and welder qualifications, VT, PMI, PT, MT, RT and UT (ISO 9712).

Rotating equipment

Performance tests on pumps, motors and gearboxes, vibration, alignment, mechanical run tests.

Package management & expediting

Supplier follow-up, schedule, document review, pre-shipment inspection.

All references by equipment family

Inspections carried out at the manufacturers of this equipment. For confidentiality, we name neither end clients nor projects.

FamilyManufacturerEquipment inspectedIn a wind farmYear

References from our 2020–2026 inspection assignments. Some references (gearboxes, plates, generators, transformers) come from other sectors using the same technologies as wind turbines.

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Before the purchase order

Buying towers, blades or cables? We help you choose the suppliers

Supplier pre-qualification and factory audits, RFQ packs with ITP and VDRL, technical bid evaluation and award, then inspection of the awarded supplier by the same team.

Tender supportPlan your tenders