Health, Safety & Environment

GWO Control of Hazardous Energies (COHE) Combined

Duration:  3 days
Per Delegate:  £940.00

Practical Content


Theoretical Content


Delegates must hold a current GWO BTT Electrical Module Certificate and a current GWO BTT Hydraulics Module Certificate.

Delegates are required to be WINDA registered before arriving for the course. To register please visit and follow the instructions through the delegate registration portal. Please contact our Customer Service Team if you need assistance with this.

Key Learning Outcomes

  • Demonstrate understanding of the risks related to hazardous energies in the wind industry.
  • Understand how to act safely when in the vicinity of hazardous energies or when working on systems and equipment containing hazardous energies

Course Content

Basic Safety

  • Control of hazardous energies basic safety
  • Lockout-Tagout for an Ordinary Person
  • Mechanical Safety
  • Electrical Safety
  • Pressure Fluid Safety
  • Hazardous energy scenario

 Electrical Safety

  • Responsibilities and role of a Qualified Electrical Person
  • Electrical PPE
  • Electrical safe working practices
  • Electrically safe working condition
  • Testing and isolation
  • Stored energy
  • Hazardous electrical safety scenario

 Pressure Fluid

  • Qualified pressure fluids person – requirements and role
  • Pressure fluids hazards
  • PPE
  • Safe working practices
  • Response to pressure fluid incidents
  • Hazardous pressure fluid scenarios


Delegates will undertake a multiple-choice examination paper to demonstrate they have achieved the key learning outcomes detailed above.

PPE Requirements

Safety footwear, coveralls, safety glasses and gloves.

Further Information

Delegates are also required to complete a medical self-assessment form on commencement of the course to certify they are capable of fully participating.

Target Audience
Target Audience

Engineers and technicians who are required to understand hazardous energies related to working on wind turbines, their roles and responsibilities, how to create a safe working environment and what to do in both regular and emergency situations.


GWO Certificate, valid for 2-years.

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