WTG or wind turbine generators are a major new development in offshore electricity generation. Often painted grey they can be hard to detect by eye.The scale of WTG can be seen here when placed against figures.Escape from WTG is by climbing to the nacelle hatch. WTG is then placed at right angles to the wind and locked with blades feathered. This makes it safe for the helicopter to approach.When in operation WTG generate EMF at the head of the windmill causing distortion to radar pictures
