Vietnam offshore wind farm secures warranty extension with ONYX data-driven inspection campaign

To address the farm’s critical needs, ONYX deployed a comprehensive inspection and diagnostic package across all 18 turbines, drawing on a depth of offshore expertise built up across hundreds of turbines in Europe since 2008, including major programmes for SSE and ScottishPower Renewables at East Anglia ONE.

ecoCMS Portable provided detailed insights into the condition of the main bearing, gearbox, and associated drivetrain components through portable drivetrain health assessment.

The full end of warranty inspection scope included borescope inspection of drivetrain and pitch bearings, lubrication analysis, walkdown inspections across all turbines, and walkdown inspection training to build Ecotech’s in-house reliability capabilities.

This combined approach gave the client a complete, evidence-based assessment of asset condition along with practical knowledge transfer to support long-term reliability improvement.

• Clear evidence for warranty negotiations — ONYX provided high-quality photos, analysis, and component condition data, enabling Ecotech to build a robust technical case, something not possible when relying solely on OEM reporting.
• Improved OEM cooperation — Following ONYX’s evidence-backed findings, SGRE provided the necessary preventive service on the drivetrain, reversing their initial denial of main bearing borescope inspections.
• Extended warranty coverage — Ecotech secured a one-year extension of the warranty bond, significantly reducing risk exposure for high-value components, supported by ONYX’s walkdown findings on blade cracking and defects.
• Enhanced internal capability — ONYX’s walkdown training supported the development of Ecotech’s in-house reliability team, enabling more effective ongoing asset management.
• Strategic value for future operations — Project success opened discussions for additional collaboration, including shadow monitoring to support ongoing reliability management.