Wind turbine installation involves multiple specialist teams, complex lifting operations and significant health and safety considerations. Ensuring compliance with the Construction (Design and Management) Regulations 2015 (CDM 2015) is therefore an important part of planning and delivering these projects safely.
But who is responsible for CDM compliance?
Responsibility is typically shared between several duty holders, including the client, principal designer, principal contractor and individual contractors. Each has specific legal obligations, and understanding how these fit together is essential for effective project coordination and site safety.
Here, we explain the key responsibilities, the information operators need to provide and the arrangements required before work begins.
Understanding CDM duty holders and their responsibilities
CDM 2015 sets out clear responsibilities for managing health, safety and welfare throughout construction projects in Great Britain.
For wind turbine installation, these duties typically involve several organisations working together, from the wind farm operator to the teams carrying out construction and lifting activities.
The client
The client is the organisation commissioning the project, often the wind farm operator or owner.
Commercial clients must make suitable project management arrangements, allow sufficient time and resources, provide relevant information, and ensure appropriate welfare arrangements are in place.
Where a project involves more than one contractor, the client must appoint a principal designer and principal contractor in writing.
The principal designer
The principal designer plans, manages, monitors and coordinates health and safety during the pre-construction phase.
This includes identifying foreseeable risks, coordinating design decisions and ensuring relevant information is communicated to other duty holders.
The principal contractor
The principal contractor is responsible for planning, managing, monitoring and coordinating health and safety during the construction phase.
This includes preparing the construction phase plan, coordinating contractors, managing site access and inductions, and ensuring suitable welfare facilities are provided.
Contractors
Individual contractors must plan, manage, and monitor their own activities; ensure workers have appropriate skills and training; and cooperate with other duty holders.
Importantly, appointing a principal contractor does not remove the client’s legal obligations. Each party remains accountable for fulfilling its responsibilities.
What must wind farm operators provide?
Effective CDM compliance begins well before turbine installation starts. As the client, the operator must provide designers and contractors with relevant pre-construction information. This should include available information about turbine specifications, site conditions, access restrictions, existing services and known hazards.
A realistic project programme is equally important. Sufficient time must be allocated for planning, mobilisation and safe execution, considering factors such as crane availability, ground conditions, site access and weather restrictions.
The client must also ensure suitable welfare arrangements, with the principal contractor responsible for providing facilities during the construction phase.
Clear communication between duty holders helps ensure risks are understood, responsibilities remain defined, and changes are managed effectively throughout the project.
How do lift plans fit into CDM compliance?
Lifting operations are among the most safety-critical activities during wind turbine installation. They require detailed planning and coordination with the wider construction phase arrangements.
Under the Lifting Operations and Lifting Equipment Regulations 1998 (LOLER), a competent person must plan lifting operations, and they must be appropriately supervised and carried out safely.
A detailed lift plan should cover:
- Load calculations: Confirming component weights, crane capacities and lifting configurations.
- Rigging arrangements: Specifying lifting points, accessories and appropriate rigging configurations.
- Equipment inspections: Verifying crane and lifting gear inspection and thorough examination records.
- Site conditions: Assessing ground-bearing capacity, crane positioning, access and weather restrictions.
- Supervision: Defining responsibilities, communication procedures and authority to stop lifting operations.
Relevant statutory inspections and equipment certifications must also be considered. Although essential to lifting safety, a lift plan does not replace the broader management and coordination responsibilities required under CDM.
Does CDM also apply to turbine maintenance?
CDM 2015 is not limited to constructing new wind farms. Certain activities involving existing turbines, including major component replacements, structural repairs and dismantling, may also qualify as construction work.
Routine servicing does not automatically fall within CDM, so operators should assess the nature and scope of planned activities to establish which duties apply.
CDM responsibilities can also apply to projects that do not meet the thresholds for formal notification to the Health and Safety Executive (HSE).
Before mobilisation: a CDM compliance checklist
Before installation or major component replacement work begins, operators should confirm:
- The work has been assessed to determine whether CDM 2015 applies.
- Relevant duty holders have been identified and appointed in writing where required.
- Pre-construction information has been provided to project teams.
- A suitable construction phase plan is in place.
- Risk assessments, method statements and lift plans are prepared.
- Crane and lifting equipment examination and inspection records are available.
- Personnel competence, training and certifications have been verified.
- Site access, welfare and emergency arrangements are agreed.
- Responsibilities for site safety and coordination are clearly defined.
Establishing these arrangements before mobilisation helps identify potential gaps, manage risks and minimise avoidable project delays.
Supporting safe and compliant wind turbine projects
Managing CDM responsibilities requires careful planning, clear communication and coordination between everyone involved. For wind farm operators, working with an experienced specialist partner can help ensure these arrangements are implemented effectively.
AIS Wind Energy provides CDM and project management support from turbine installation to decommissioning, including acting as principal contractor and taking CDM responsibility for site safety.
Alongside these responsibilities, our experienced wind turbine technicians can carry out the installation work, providing a turnkey solution that combines project management, site safety coordination and specialist installation expertise.
Our capabilities also include detailed lift planning, equipment inspection coordination, and QESH management, supported by HSE advisors experienced in turbine installation and GWO-certified Lift Supervisors with current safety-critical medicals.
For support with your next wind turbine project, speak to the team.
Frequently Asked Questions (FAQ)
Who is legally responsible for CDM compliance on a wind turbine project?
Responsibility is shared among duty holders defined by CDM 2015, including the client, principal designer, principal contractor, and individual contractors. While client duties cannot be fully passed on, appointing a competent principal contractor ensures day-to-day coordination on site.
Does CDM 2015 apply to routine wind turbine maintenance?
Standard servicing and maintenance generally fall outside CDM. However, major component replacements, heavy lifting operations, structural repairs, or dismantling qualify as construction work and must comply with CDM regulations.
Is a lift plan alone sufficient for CDM compliance during turbine installation?
No. While a detailed lift plan is essential under LOLER to manage complex lifting risks, it is only one component of compliance. CDM requires broader health, safety, and operational management across the entire pre-construction and construction phases.
Do CDM regulations apply if a project is not formally notified to the HSE?
Yes. Legal duties under CDM 2015 apply to all construction projects regardless of whether the work reaches the threshold for formal F10 notification to the Health and Safety Executive (HSE).
