Small wind generation with vertical axis turbines, also known as VAWT, is one of the most exciting recent developments in small scale alternative energy generation.
Last week we caught wind that Sauer Energy, which develops VAWT systems, has attracted huge interest in its small wind product after placing its preliminary application for distributorships on its website.
“News of the preliminary application was released scarcely one week ago, and already there have been over 800 queries, and increasing daily”, the company said.
The company’s trademark wind power product is called WindCharger. It says the turbine is one its “key innovation priorities”. Sauer plans on starting manufacturing and trading the product during Fall 2011.
Article by Antonio Pasolini, a Brazilian writer and video art curator based in London, UK. He holds a BA in journalism and an MA in film and television.
Looks like a simple Savonius wind turbine, with some added Darrieus wings. Savonius type wind turbines have a low efficiency because there is always one blade going against the wind, limiting the efficiency to at most 50% of the Betz limit.
Anyone who follows the wind energy industry will notice that every few months there is a start-up company making fantastic (read: physically impossible) claims about the efficiency of their “revolutionary” design*. They get some attention from sites like these, probably attract some naive investors, and soon after they are never heard of again.
Anyone reporting about these kind of firms should be very sceptical. (In the original meaning, not in the crackpot climate denialist meaning).
*Often it is just an old idea rehashed.
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