Having been involved in a number of urban and building scale wind turbine initiatives over the last 12 years, we know that along with finding clean wind paths, noise, vibration and liability from parts flying off are specific barriers to mounting wind turbines in our urban environments.
We are interested to see a Dutch renewable energy start-up "The Archimedes" has launched a new spiral shaped wind turbine that claims to overcome these issues. Based on the Archimedes screw pump, then design is claimed to be virtually silent and can generate up to half a household's energy needs.
Marinus Mieremet, the inventer of the turbine, says it can produce 80 percent of the theoretical maximum energy that can be harnessed from the wind – that's 30 per cent more than a traditional windmill!
Read more at ArchitectureAndDesign.com.au