For many environmental enthusiasts, horizontal-axis wind turbines (HAWTs) — the kind that look like windmills slowly spinning in the distance — are a pretty familiar sight. Unfortunately ...

Wind farms have tens and sometimes hundreds of these turbines lined up together in particularly windy spots. Smaller turbines erected in a backyard can produce enough electricity for a single home ...

Previous QE Prize winners Andrew Garrad (L) and Henrik Stiesdal (R) share the £500,000 prize Mr Stiesdal and Mr Garrad began their wind journeys in the 1970s, both building "backyard" turbines.