Balance of plant offshore inspections
Control over safety, risk and maintenance starts with insight into the actual condition of offshore assets. Balance of Plant inspections provide that insight by assessing the structural integrity of offshore infrastructure surrounding the turbine, including foundations, transition pieces, boat landings, access systems and offshore substations.
By aligning inspections with specific assets, offshore conditions and critical degradation mechanisms, a reliable view of performance and risk is established—enabling asset owners and operators to make well‑informed decisions on maintenance, availability and asset lifespan.
Certainty and control for wind turbines
Control Union integrates multiple certified inspection disciplines within a single BoP campaign, including visual and condition assessments, non‑destructive testing (NDT) and thickness measurements, bolting and flange inspections, and certified coating inspections. Execution is carried out using rope access, drones and remote monitoring, selected based on location and risk profile. This integrated approach reduces mobilisation effort while providing a complete and consistent condition overview through a single inspection partner.
We provide the following inspections within the offshore wind industry:
Statutory inspections are legally required, periodic safety inspections of work equipment and systems on the turbine, focused on HSE compliance and safe working practices. Read more.
Balance of plant inspections focus on the structural condition and integrity of offshore infrastructure surrounding the turbine, such as foundations, transition pieces, and access systems.
Protect offshore assets with control and certainty
Designed for offshore reality
Inspections are grounded in real‑world exposure to splash zone conditions, wave loading, structural vibrations and vessel impact, ensuring findings reflect actual degradation rather than theoretical models.
Focused on critical degradation
Each campaign targets corrosion, fatigue cracking, loosened bolted connections and impact damage—the failure mechanisms that most commonly affect offshore steel structures.
Scoped around operational needs
The inspection programme is built around what the asset owner truly needs, delivering results that are directly applicable to maintenance planning and operational decision‑making.
Integrity and safety combined
Structural integrity checks and safety‑critical elements such as platforms, ladders and fall protection are assessed in a single mobilisation, reducing offshore visits and operational disruption.
Multiple assets, one campaign
BoP inspections cover both turbine‑related structures and offshore substations, enabling operators to address multiple assets within the same inspection window.
The proof to your promise
A partner, not a checklist
Control Union acts as a technical partner that flags findings beyond the agreed scope, so nothing is overlooked in a grey regulatory area.
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Findings outside the agreed scope are always reported and discussed, closing potential blind spots before they escalate.
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BoP inspections are less OEM-driven than turbine inspections, giving asset owners full control over priorities and frequency.
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Reporting is structured around client systems with clear condition statuses, making results immediately usable for maintenance planning.
Proof to your promise
Frequently asked questions
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Local knowledge
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Control Union drives global trade forward. As an international and independent partner, we support traders, producers, brands, and logistics service providers in managing risk and safeguarding quality at every step of the supply chain.
From raw material to final product, from processes and systems to installations, we provide insight, assurance, and trust in every link of the chain. We do this through inspections and audits, certification and verification, laboratory analyses, and pest management.
Our global network of experts are embedded in international supply chains across dozens of sectors, including agriculture, food & feed, energy & biofuels, forestry, construction & infrastructure, textiles, maritime, and on- and offshore.
Together, we build future-proof supply chains and confidence in global trade!