Yaw control wind turbines

Page date: Published 25 Mar 2026; updated 30 Sep 2026. 4 min read.

The article explains that a yaw drive rotates a turbine’s nacelle around the tower so the rotor faces the wind. Active yaw systems use motors, gearboxes, pinions, bearings, brakes and a controller, with wind-direction sensors feeding adjustments. Passive systems use vanes or tailfins and are described as more common on smaller or downwind turbines. The yaw bearing supports the nacelle and allows rotation; the yaw drive supplies the turning force. A full turn is said to take a few minutes.

The page says yaw alignment affects energy capture, blade loading, vibration, structural stress and maintenance. If a drive or sensor fails, the nacelle may remain misaligned, output can fall and loads become uneven; a turbine may need shutdown, with a yaw brake acting as a safety measure.

It distinguishes yaw control from pitch control, which changes each blade’s angle to regulate lift, power and rotor speed, including feathering blades in excessive winds or emergencies. It describes research into using individual pitch control to make small yaw adjustments and reduce reliance on yaw drives.

Market data inconsistency in the article: it states the global pitch-and-yaw drive market was about USD 1 billion in 2024, then says a North American segment was USD 3.36 billion that year and forecast to reach USD 4.96 billion by 2030. The second figure exceeds the stated global total, so these figures appear inconsistent and should not be relied on without checking the cited sources. It also cites a projection that yaw-and-pitch bearing markets would exceed USD 810 million in 2025. Related links: Energy; Offshore wind; pitch control; wind-speed operating ranges.