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Renzo Piano's Dragonfly-Inspired Turbine Can Harvest Energy from the Slowest Winds

As we shift away from fossil fuels, many utilities have focused on building the biggest and most powerful wind turbines possible to meet growing energy needs. Architect Renzo Piano has taken a different approach, however, focusing his efforts on a compact, yet super-efficient wind turbine that anyone can erect in their backyard. Called the “Dragonfly Invisible Wind Turbine” the two-blade design mimics the delicate dragonfly’s ability to float on the slightest of breezes. Based on the physics of dragonfly flight, Piano’s mini-turbine can harvest energy from winds that blow as slow as four miles an hour.

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The dragonfly-inspired turbine is currently undergoing testing by the international renewable energy corporation ENEL Green Power. Wondering why they are interested in a tiny wind turbine rather than a massive one? Because big turbines can’t live in your backyard.

“We were looking for a new concept in wind turbines, one that would be sensitive to the more frequent low altitude winds in the area,” explained Francesco Starace, CEO of Enel Green Power, in a recent press release. “We didn’t just want a micro-turbine, but something innovative and modern with no negative impact on the landscape.”

Most residential turbine designs are big, loud, and often have an adverse affect on property values. Commercial-size turbines produce a lot of power, but you can’t put them just anywhere, and they can have a deleterious impact on birds and other wildlife. Piano’s compact turbine design addresses nearly all of these problems without sacrificing efficiency.

The Dragonfly wind turbine offers a capacity of 55 kW, with continuous output of electrical energy due to its ability to exploit winds as light as two meters per second (around 4.4 mph). “The technique lies in the slim-line design of the turbines, which is developed to mimic the form of a dragonfly in flight and how it can glide through gale-force winds,” states PSFK.

“Unlike standard turbines, which have three blades, this one only has two—and when it’s at rest, each blade lines up with the central column to diminish its impact on the landscape,” reports Gizmodo. “The 65-foot column itself is extremely thin—at only a foot wide—which is possible because the blades themselves are almost hollow, thanks to strong carbon and polycarbonite ribbing.”

Currently, the Pritzker Prize-winning architect’s wind turbine is being tested in the Province of Pisa. After about a year of development, ENEL hopes “the innovative generator will be used for Enel Green Power Plants in Italy and abroad and will be marketed in Italy through the Enel.si grid.”

All images provided by Renzo Piano Building Workshop



Read more: Renzo Piano's Dragonfly-Inspired Turbine Can Harvest Energy from th...

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Now the works of the flesh are evident, 

which are adultery fornication, uncleanness, lewdness,

idolatry, sorcery, hatred, contentions, jealousies,

outbursts of wrath, selfish ambitions, dissensions, heresies, envy,

murders, drunkenness, revelries, and the like;

of which I (Paul the Apostle) tell you beforehand,

just as I also told you in time past, that those who 

practice such things will not inherit the kingdom of God. 

But the fruit of the Spirit is love, joy, peace, long-suffering,

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against such there is no law. Those who are Christ's

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If we live in the Spirit, let us also walk in the Spirit.

Let us not become conceited, provoking one another,

envying one another.

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{Sorcery: "Pharmakia;" Primarily mentioned as one of the "works of the flesh." In "sorcery" the use of drugs. Blue Letter Bible. Galatians 5:20}

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