From the GWO website:

The aim of this module is to enable the participants to perform single rescuer advanced rescue operations, in a WTG nacelle, tower and basement, by using industry standard rescue equipment, methods and techniques, exceeding those of GWO s Working at Heights Standard.

Based on the participants NTBR Module qualifications, the single rescuer NTBR Module shall ensure that participants are able to:

• Assess and determine single rescuer rescue strategy (relevant rescue method, technique, certified equipment and how to organize the rescue efforts and incident scene) for various rescue scenarios, in a WTG nacelle, tower and basement.
• Apply rescue methods and techniques in performing descending and ascending single rescuer rescue operations, from a WTG nacelle, tower and basement using a rescue stretcher and transfer board, manually operated and power-driven lowering/raising rescue system (rescue device and pulley system or similar), and other rescue equipment relevant to the participants.