Energy Ball Super Efficient Wind Turbine

20 by Doug Gunzelmann on September 10, 2008

The Energy Ball is a slick, silent, and efficient wind turbine that can create usable energy from even light winds. The main factor contributing to the success of the Energy Ball design is the use of the Venturi effect. The Venturi effect occurs when an "incompressible fluid flows through a constricted section," this results in the production of increased kinetic energy. Home Energy is the Swedish Company responsible for the application of this effect to the Energy Ball. Another contributing factor to the efficiency of this model is the rotating shaft is parallel with the wind direction making it more aerodynamic. Through the use of 6 curved blades that form a sphere while in motion the Energy Ball is geared to be an ideal energy source for small scale use.

The company claims that their 100cm prototype (V100) could produce up to 15% of the energy consumed in an average Swedish home and it can be directly plugged in to supply the power. Their V200 model (198cm) could produce up to 50% of a household's needs and the silent rotation means that it won't be a disturbing presence in a residential setting . With speeds as low as 2m/s the Energy Ball can be productive. Home Energy provides various alternative energy products such as solar power, wood pellet, and energy monitoring systems that display personal energy consumption and production from your wind and solar sources. The Energy Ball by Home Energy is a simply designed, easily applied, yet critically useful piece of equipment that could greatly increase the accessibility of wind power to the general public.

Here is a news broadcast about the Energy Ball in action, unfortunately it isn't in English!

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http://www.naturallyearthfriendly.com Brianne

Looks attractive, but wouldn’t it be dangerous to birds? Ah well, they’ll learn to avoid them. It’s nice to see companies coming out with so many different options to do this ourself, seeing as the government won’t be helping anytime soon. Thanks for sharing.

Ivan

If we do nothing there no birds sun !
Greg

Not dangerous to birds. There is a pressure cell inside the ball that diverts the birds that fly too close. The propeller type generators are dangerous to birds.

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Taco

It is a beautiful windturbine, a dutch ivention.
In the Netherlands it costs 3000 euro, inclusive mounting
When you compare the output with the price i think it is not a good investment. If you buy solar panels for 3000 euro’s you will get a higher output.
I doubt the starting speed of 2m/s. Near where i live there’s a company wich has a 1 meter ball on their roof. It rotates only with stronger winds.
The claim of producing 15% is based on the dutch everage use per household, wich is 3375 Kw per year. This claim can only be reached in the coastal area’s, not in urban inland city’s.
I hoped the figures were better because then i would have a powerball on my roof.

Please forgive my poor english writing,
Greetings, Taco
Kimberly

I had a friend who built his house in the late 70′s and totally powered his house with a windmill and his out builds also. Everyone would lose power during a storm but him. He even sold extra energy back to the electric company. Only thing his wife complained about it didn’t make the freezer freeze solid enough to keep ice cream in the freezer. LOL!
http://cozy-technology.blogspot.com Rainboww

Hi,
Thank you for sharing.
Scoraig Wind Electric said in the website :” My agenda here is to protect the reputation of wind energy from disaster. Wind energy works well if correctly applied, but rooftop mounting is not a suitable application.”
They found that the mean wind speed was 1.7 m/s (less than 2 m/s–the minimum windspeed) in the urban house roof, when actually it is 5-7 m/s in the city.
I guess we have concern this. Put the wind turbine on a tower, that can be 2.5 times sourrounding buliding height.
Thanks,
Rainboww
http://www.worldwindturbine.com George

we produce and sell wind turbine : http://www.worldwindturbine.com
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http://waytogogreen.org Way to Go Green

Wind Power is very popular around here. There are several large wind farms within 15 miles and several home owners that produce their own wind power. Thanks for writing about this great energy resource.
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http://centurionenergy.net Bracken

This is an awesome design. I have seen a number of these in Japan. They can be very effecient, however, scaling them larger is a gaint problem.

Regarding the comment about birds:
This is a silly problem that keeps bring brought up, and has even delayed some wind farms. Bird are not dump, and typically will avoid wind turbines. AWEA has published the offical study stating that more birds are killed every year by wind sheilds than wind turbines. Anybody want to stop driving???
http://www.squidoo.com/wind_power_cost lichong712

This is creative design, I think it can make full use of wind power.I am engaged in building my homemade wind turbines, and I am also a DIYer,you seems good at this kind of expertise, I hope you can give me some advice,
This is my current plan:
wind power cost.Thank you very much! best wishes!
http://www.squidoo.com/smallsolarpanels Basil Westerholm

I’ve liked reading through these types of blogs. Interesting stuff! Solar energy has constantly been a fascination with me.
C Bertani

I just saw an Energy ball at an earth day fair. I want one! The design is so Art Deco and Avant Guard.

Amazed that they cost 3000 euros installed in europe and in Texas the V100 is $12,885 and the V200 is $16985 — this includes a 32 ft pole. What is this Wind Robbery?

They are thinking that with all the energy credits we can afford it. Well guess who is paying for all the energy credits. YOU and ME with higher taxes and electric rates.
Bob Henry

3 meters per second equal 6.7 MPH!!!

You are hiding this information. It is one of the most important points. MPH.
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I just saw an Energy ball at an earth day fair. I want one! The design is so Art Deco and Avant Guard.
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