Establishing strong risk foundations during development

A project's risk profile is often determined long before construction begins. Decisions made during site selection, engineering and design can have lasting implications for operational reliability and how project risks are assessed by insurers.

Aligning turbine technology with site conditions

While higher hub heights can unlock stronger wind resources, they can also expose turbines to greater wind variability and loading forces.

Deploying large turbines in unsuitable environments can lead to increased maintenance requirements, including:

• Fatigue loading on blades and drivetrain components
• Stress on towers and foundations
• Higher likelihood of premature failure or performance degradation if miscalculated for actual parameter range

Design engineers map and assess key technical risks through wind resource assessments, variability analyses, and turbine suitability studies. Insurers subsequently review these studies to evaluate long-term resilience, and Gallagher works closely with clients to help identify, understand and communicate project risks throughout the insurance process.

Optimising site layout

Site layout plays a critical role in long-term performance and risk management. Turbine spacing, orientation and positioning influence wake effects, turbulence and mechanical loading. Poor site design can:

• Reduce energy production
• Increase structural stress
• Drive higher maintenance costs over the project's lifespan

Detailed wind modelling and engineering validation can help optimise performance, reduce long-term asset stress and demonstrate that key risks have been assessed before construction begins.

Transit and logistics: A growing risk exposure

As turbines grow larger, logistics is emerging as a significant source of project risk. Transporting blades, nacelles and tower sections from ports to remote project sites safely has become one of the most challenging aspects of wind farm development.

Inland transportation

The challenges don’t end at the port. Blades that can exceed 100 metres in length, heavy nacelles and oversized tower sections often need to travel hundreds of kilometres to remote project sites.

Along the way, narrow roads, tight turning circles, steep gradients, bridges and uneven terrain can all increase the risk of damage. Vibration and knocks from potholes during transport can also cause hidden damage, particularly to gearboxes, transformers and other sensitive equipment.

At the same time, supply chain disruption is increasing project exposure. Long lead items can experience extended procurement timelines, leaving schedules more vulnerable to geopolitical disruption, inflation and manufacturing capacity constraints.

Delays to critical equipment can have cascading impacts on project timelines, financing and insurance arrangements, increasing the importance of supply chain resilience and delay-in-startup risk management.

To mitigate these exposures, insurers look for detailed route surveys, vibration monitoring, specialised transport equipment and clearly documented handling procedures.

Managing construction risks and project delays

As turbine size increases, installation becomes more complex and project delays can become more costly.

Crane availability

Access to specialised cranes is one of the key dependencies during construction. Installing today's turbines often requires heavy-lift cranes or dual-crane lift configurations, many of which may be subject to availability constraints depending on project location and market conditions. Breakdowns or scheduling conflicts can delay projects by weeks or even months, creating significant financial consequences.

Contingency planning, standby crane arrangements and coordinated contractor agreements can help improve project resilience and minimise disruption during installation.

Foundation design

Wind turbine foundations are designed to withstand substantial static and dynamic loads throughout their operational life. Insurers examine engineering design, concrete quality, reinforcement and geotechnical investigations to assess long-term structural integrity.

Defects arising from design flaws or poor workmanship may not always be covered under insurance policies, making quality assurance and engineering validation essential throughout construction.

Phased commissioning

Many wind farm projects adopt phased commissioning, allowing completed turbines to begin generating revenue while construction continues elsewhere on site. However, this creates a hybrid risk environment in which operational assets remain exposed to construction-related risks.

Insurance programmes need to support the transition from construction to operations through coordinated policy structures, phased handovers and carefully forecast early business interruption coverage.

Building resilient operations

Once a wind farm becomes operational, attention shifts to asset reliability, contractual clarity and long-term resilience.

Contractual arrangements play a key role. Engineering, procurement and construction (EPC) contracts and turbine supply agreements (TSAs) can influence how risks are allocated and managed throughout the project lifecycle.

Key areas of focus include:

• Warranties and performance guarantees
• Maintenance obligations
• Force majeure events
• Limitations of liability
• Responsibility for repairs and failures

Ambiguity in these areas can complicate claims, create uncertainty around liability and potentially increase risk exposure.

A strategic opportunity for developers and investors

Insurance needs to be viewed as a strategic component of project success, not simply a contractual or financial requirement. Engaging insurers and risk advisers early can help identify and address potential issues before they affect project timelines, financing, procurement or construction activities.

This may help identify potential risk considerations earlier in the project lifecycle and support informed decision-making by project stakeholders.

This approach may contribute to stronger project resilience and support a clearer understanding of project risk considerations.

Conclusion

As wind farms grow in scale and complexity, the risks associated with their development continue to evolve. Managing these risks requires a lifecycle approach that extends beyond engineering and considers how decisions made early in a project can influence long-term performance.

From site selection and turbine technology to transportation, contracting, construction and operations, every decision contributes to a project’s overall resilience.

In an industry where a single decision can influence performance for decades, risk management is no longer a supporting function but a part of the foundation for long-term success.