Hello World’s Ashlee Vance paid a recent visit to Iceland’s capital city of Reykjavik to see the next part of the green energy story. He found a start-up called Icewind that is building a new type of funky wind turbine designed to perform well in low-wind conditions but also to slow itself down in high-winds, preventing it from catching on fire or ripping apart.
As a result of over a millennium of windmill development and modern engineering, today’s wind turbines are manufactured in a wide range of vertical and horizontal axis types.
The smallest turbines are used for applications such as battery charging for auxiliary power for boats or caravans or to power traffic warning signs.
Slightly larger turbines can be used for making contributions to a domestic power supply while selling unused power back to the utility supplier via the electrical grid.(wikipedia)