A well-known institutional investor engaged Atharra to conduct a technical design review of lightning protection system (LPS) modifications associated with aerodynamic upgrade development across two onshore wind turbine platforms. As the upgrades introduced new blade-tip components, careful assessment of lightning attachment behaviour, conductive pathways, and compliance with IEC 61400-24 was essential. Atharra evaluated the existing blade LPS architecture, reviewed the proposed tip-booster LPS designs, and assessed installation and validation processes. This work formed a critical input to discussions with the client’s asset insurer, enabling informed dialogue on risk, compliance, and upgrade approval.
Detailed LPS design review for two turbine models
Assessment aligned with IEC 61400-24 requirements
Review of receptors, conductors, and bonding interfaces
Independent evidence to support insurer risk assessments
Independent LPS due diligence to support safe integration of aerodynamic blade modifications.
Atharra combined deep engineering knowledge with hands-on upgrade experience to assess how blade-tip aerodynamic devices interface with existing lightning protection systems. We reviewed receptor placement, conductive pathways, material selection, and down-conductor integration, alongside risks such as side-flash, galvanic corrosion, and modifications to strike attachment probability. Drawing on laboratory evidence from analogous designs and detailed installation QA processes, we assessed the likelihood of IEC compliance and the robustness of proposed validation methods. The findings provided the investor, and their insurer, with a clear, independent view of LPS integrity, supporting both technical assurance and commercial decision-making around upgrade deployment.
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