Vertical axis wind turbines have recently been revived by a few innovations made to them by scientists all over the world. Sauer Energy is one of them, and their turbine has a high efficiency because it’s designed to maximize the drag, so the blades are moved more efficiently by the wind.

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Vertical axis wind turbines have recently been revived by a few innovations made to them by scientists all over the world. Sauer Energy is one of them, and their turbine has a high efficiency because it’s designed to maximize the drag, so the blades are moved more efficiently by the wind.

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It looks like the CalTech guys are not the only ones involved in such inventions, as a company called “Wind Harvest International” says they can double the ourput of large horizontal axis wind farms by placing one-megawatt VAWTs between them, in a way that would boost their power output.

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