01 Aug '12, 3pm

Could Vertical Axis Wind Turbines by Used Offshore?

Could Vertical Axis Wind Turbines by Used Offshore?

© Sandia/ Josh Paquette and Matt Barone Vertical Turbines Better at Sea? Wind power researchers & engineers have been looking at vertical axis wind turbines (VAWT) for a long time, but so far these haven't gained too much ground on the more traditional 3-blade horizontal axis wind turbines design that can be found everywhere. This could possibly change with offshore wind farms. Vertical axis wind turbines have some benefits that are magnified in those conditions, and maybe - just maybe - it'll give them the upper hand over traditional turbines over time.VAWTs offer three main advantages: a lower turbine center of gravity; reduced machine complexity (they don't need a control system to rotate the nacelle and point it in the direction of the wind); and better scalability to very large sizes. These become very important offshore, where installation and maintenance is more cos...

Full article: http://www.treehugger.com/wind-technology/could-vertical-...

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