What the work actually
looks like
A wind turbine technician climbs a hundred metres of steel, works inside a machine the size of a bus, and keeps it turning. Built for newcomers, students and technical schools — everything here is interactive, so tap anything to find out what it is.
From moving air to the grid
Wind reaches the rotor
Moving air carries kinetic energy, and the amount depends on the cube of wind speed — double the speed and there is eight times the energy. That single relationship explains most of how a turbine behaves.
The blades generate lift
A blade is an aerofoil. Air over the curved side travels faster, pressure drops, and the blade is pulled round. It is lift, not a push, which is why a blade tip can travel far faster than the wind itself.
The rotor turns the main shaft
Roughly 10–15 revolutions per minute on a large machine. Slow, but with enormous torque behind it.
The gearbox steps the speed up
About 1:100, turning 12 rpm into around 1,200 rpm — the speed a conventional generator needs. Direct-drive turbines skip this and use a much larger, slower generator.
The generator makes electricity
Rotation carries a magnetic field past coils of wire and induces a current. This is the moment mechanical energy becomes electrical.
Converter and transformer condition it
A generator puts out a few hundred volts — 690 V on most machines, a few kV on the largest. Power electronics fix the frequency to match the grid, then the turbine transformer raises that to the farm's collection voltage: 33–35 kV onshore, and 66 kV on offshore farms built since about 2017. Higher voltage means lower current for the same power, and far smaller losses in the cable.
Out to the grid
Along the array cable to a substation, then onto the transmission network. Blade to socket takes milliseconds.
What one turbine actually powers
Set the machine and the wind, then see what that output runs. This is the question every school group asks, and the honest answer surprises people in both directions.
Producing
—
0kW right now
Simultaneous running loads, not annual consumption. A turbine does not run at rated output all year — a good offshore site here achieves a capacity factor near 50%, onshore closer to 30%, so the yearly figure is roughly a third to a half of these numbers.
Thinking about starting?
Everyone doing this job began with a GWO Basic Safety Training course and a first site. Find a training centre, then keep every certificate in one place from day one.