What is the small boat that goes up and down the wind turbines at sea looking for?

Wind turbines have to be maintained in proper working order. One way of doing this offshore is by having regular inspections by boat. Any breakdowns or slowdowns can then be checked and repaired.

Wind turbines have to be maintained in proper working order. One way of doing this offshore is by having regular inspections by boat. Any breakdowns or slowdowns can then be checked and repaired.