Wind Energy Turned On Its Side
by Beth Ann Lee
Last summer, London's Olympic Park included 7 vertical axis wind turbines. Here's a photo.
They look pretty classy, don't they? Less offensive than a lot of cables strung all over a city.
A vertical axis turbine can catch wind from any direction. They're more efficient than a standard wind turbine because they don't require a minimum wind speed or power to start. They're also quieter. These could easily be used on roadways to offset or fulfill the power needs of streetlamps and traffic lights, and on bridges for a de-icing grid. One turbine can provide up to 7500 kWh per year, making them a viable power source for home rooftops.
You can read more about London's turbines here.
|Turbines in Olympic Park|
|Another type of vertical axis turbine|