Health, Safety & Environment

GWO Control of Hazardous Energies (COHE) Combined Refresher

Duration:  1.5 days
Per Delegate:  £690.00

Practical Content


Theoretical Content


Delegates must hold a current GWO Control of Hazardous Energies (COHE) certificate achieved within the last 2 years.

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

  • Identification and avoidance of safety hazards in a mechanical, electrical and pressure fluid environment. 

 Electrical Safety

  • Electrical safe working practices in wind turbines
  • Electrical safe working conditions
  • Safety documentation

Pressure Fluid

  • Pressure fluid safe working practices
  • Pressure fluid safe working conditions
  • Treatment of pressure systems
  • Safety documentation


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 refresh their knowledge on 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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