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Wind turbines disguised as trees and producing electricity from low wind speed are coming to the US


A startup in France called ‘Newwind’ has designed a special product which can be best described as a fake tree with small wind turbines for leaves. The company has already deployed a few units that are currently generating electricity in Paris and it is now testing the market in the US.

While solar energy has caught on both at the commercial/utility-scale level and for residential installations, wind energy has for the most part only been viable at utility-scale in wind farms.

This product, appropriately called ‘Wind Tree’, doesn’t bridge the gap entirely since it is mostly marketed for civil engineering and landscaping projects in cities, but it certainly represents a step closer to distributed generation of wind energy.

Newwind has already completed several projects in France where it “planted” over 40 Wind Trees. Here are a few images of some of those projects:

The vertical-axis designed of the small leaf turbines with a magnet assembly enabled them to start generating energy at the low wind speed threshold of 4.5 mph without any distracting sound, making them ideal for urban settings.

Newwind explains the system in the leafs called ‘Aeroleaf’:

“Current is generated by a (rotor) magnet assembly, which is rotated by a blade moving across circuit (stator). Micro electricity generation is created with and multiple turbines combine to captures the lowest winds and accumulate their power.”

The leaves are small relative to your average wind turbine, but they’re actually 3-ft tall and there are 54 of them per tree.

At a peak power of 65-watt per leaf, each tree represents an installed capacity of 3.5 kW, or the equivalent of a small home solar array:windtree-spec

The device could be used to power nearby buildings or street lights. Ideally, Newwind connects the trees to an energy storage system.

The dimensions shown above are for the tree itself, but you need a significant installation area for the Wind Tree.

The recommended distance between the tree and the closest building is 32 ft, and it needs to be less than 164 ft away from the electrical panel.windtree-spec-2

Again, the Wind Tree aims to be part of civil engineering and urban landscaping projects, not residential use, at least at the current price.

Newwind is now taking reservations in the US to test the market. The company currently lists the price at $67,500 before delivery and installation. That’s almost $20,000 per installed kW.

It’s certainly not cheap, but the company is also looking into leveraging its Aeroleaf technology for applications other than the Wind Tree.

The company is currently working on a project to install the turbines on the roof of a new building at Clichy-Batignolles in Paris:


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