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Energy catching wind energy high on roofs | Upload Wind

Catching Wind Energy High On Roofs

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by: Hans van der Broek
catching wind energy high on roofs | Upload

Wind energy. In the city you cannot erect windmills. But a wind turbine fits on roofs. This can help to let flats and offices function fully on alternative energy. Suma enters an apartment building in the Utrecht Overvecht district. He takes the stairs up, then the elevator to the highest point.

Wind poewerbox on top of a roof
One of the wind and solar boxes of the test project in Utrecht (the Netherlands).

Wind Energy

It is his sustainable dream that Suma - educated as an engineer - always brings to a dizzying height. He is the founder and director of the company Ibis Power, which places wind turbines on the roofs of flats and office buildings. No ordinary wind turbimes, that's clear. On the roof of the seventies apartment is an elongated container. Inside is a rotating cylinder, which produces electricity on wind force.
Drawn windinstallation for roofs powernest

Wind Turbines High On Roofs

Wind turbines. How much wind does it take to make them turn
Most of what you would call large-scale wind turbines typically start turning in winds of seven to nine miles per hour. Their top speeds are around 50-55 mph, which is their upper safety limit. Large-scale wind turbines normally have a braking system that kicks in around 55 mph to prevent damage to the blades.

"Putting an ordinary wind turbine on a roof does not work. That would be unstable, dangerous and against all building regulations. Putting a mini-wind turbine on a roof, you can. You see that too, here and there on buildings in cities. "They hardly generate electricity," Suma says. "Our mission is to generate enough electricity on the roof for all residents living underneath." It is possible, but then the houses do also need insulation and heat pumps.

Recommended: Wind Turbine From Wood: Made By EAZ-Wind, Netherlands

Moreover, the entire roof has to be filled with the square wind turbines. A 'power nest', Suma calls them. The top of the square windmills has to be filled with solar cells, every square inch has to be used to generate green energy. "Only then can you provide an entire flat with it." And still not always. If there is no wind, or it is freezing, the houses still have to drain electricity from the electricity grid.



                                                               Catching Wind Energy High On Roofs

Wind Turbines Make Gas Pipes Not Necessary Anymore

With the latest project, it must be possible to remove the gaspipe grid connection for six-and-a-half of the ten floors. The project in Utrecht is mainly a test; the electricity is for one of the houses in the flat. The prospects for Suma in Utrecht Overvecht are good, because exactly this neighborhood has been designated by the municipality as the first natural gas-free area.

Recommended: Wind Turbines Cleaned By Drones

The gas network has had its best time here. There must be no new gas pipes but clean energy. The Ibis Powernest costs 55,000 euros (excluding installation costs). That can be recouped in seven to fifteen years, says Suma, depending on the location. "Near the sea it is going faster, given the wind speeds, then near the central Netherlands."
Ibis Power works with six permanent employees, at an office in Eindhoven. The windmill of the powernest comes from Taiwan, the upright solar panels China. The company works together with a large construction and energy group for installation on roofs.

Recommended: Vortex Wind Turbine: Energy Generator Without Blades

There are also companies that try to sell flat windmill boxes to the ridge of ordinary terraced houses. Suma points from the roof of the flat over the houses and buildings. "They have to get rid of the natural gas as soon as possible." To arrange that, all sustainable technologies and alternative energy sources must be used, he says. Construction companies and municipalities are starting to get that through more and more. All buildings and houses must eventually become natural gas-free. Because of the Climate Agreement of Paris, and to liberate gas extraction area Groningen from quakes. But to make that change really a success, something has to change. The scale must go up, the costs down. In addition, some government regulations must change, Suma says. "Officially our wind energy roof still counts as an extra layer of living, which slows down processes." The tricky thing is also to distribute generated electricity well between all the underlying residential blocks.

Wind turbines. Why do they turn so slowly?
The job of the tower is to support the turbine and transfer extra wind loads safely to the ground. Too high speed of a large turbine will mean more steel used to make the tower strong enough to withstand the loads and hence cost, again. This is the reason large wind turbine rotate slowly on the rotor side.

Wind Turbines In Coastal Areas

Apart from Utrecht, there is also a test mill on a roof in Nieuwerkerk aan den IJssel. Now that the attention for climate problems and 'Groningen' is increasing, the phone is constantly ringing at the company. Very different from ten years ago, when Suma started. He came up with the idea when he did PhD research in Miami, where air-conditioners were blowing all day. That made him think. "The energy consumption is cities is heavily polluting, that must be different." He also sees a sales market in the United States (New York), the Caribbean and Asia. Ibis Power wants to work internationally. Suma has just returned from Berlin, where he won a sustainability prize. He will soon have to go to the Chinese city of Shenzhen, where he also hopes to win the prizes.

Recommended: The First Floating Wind-farm Is Operating In Scotland

In the Netherlands, the company mainly targets potential customers in the coastal provinces. There are the most energy-hungry buildings. "We already count 2,163 suitable buildings," Suma explains. The latest project will be in Rotterdam.
A 'powernest' must rake every bit of wind blowing in the city. Valves of the metal casing therefore press the wind through the opening so that it gets an extra swivel. "The wind speed accelerates to 160 percent of the original power," says Suma. "The funnel effect", he calls it.

Wind Turbines On Roofs With Different Shapes

Pipe inevolx windturbine
It sounds so unique, a reclining windmill on a roof. Nevertheless, Ibis Power is not the only one. There are some competitors who want the same, says Suma. "Our advantage: they have less practical experience." There is a Swiss company that sells the same kind of windmill roof, for flats and offices. They are nice and high. There are also some companies that try to sell flat windmill boxes to the ridge of ordinary terraced houses. They can also catch some wind and produce electricity, to feed the lamps directly. One appeared on a house in Vlieland (island in the north from the Netherlands), the yield was still thin.

Before you go!

Recommended: Airborne Wind Energy Systems: A New Way Of Energy Supply

Did you find this an interesting article or do you have a question or remark? Leave a comment below.
We try to respond the same day.

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Click on 'Register' or push the button 'Write An Article' on the 'HomePage'

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Hans van der Broek, founder

Founder and CEO of WhatsOrb, world traveller, entrepreneur and environmental activist. Hans has countless ideas and has set up several businesses in the Netherlands and abroad. He also has an opinion on everything and unlimited thoughts about how to create a better world. He likes hiking and has climbed numerous five-thousanders (mountain summits of at least 5000m or 16,404 feet in elevation)

 

Hans van der Broek, founder

Founder and CEO of WhatsOrb, world traveller, entrepreneur and environmental activist. Hans has countless ideas and has set up several businesses in the Netherlands and abroad. He also has an opinion on everything and unlimited thoughts about how to create a better world. He likes hiking and has climbed numerous five-thousanders (mountain summits of at least 5000m or 16,404 feet in elevation)

 

Catching Wind Energy High On Roofs

Wind energy. In the city you cannot erect windmills. But a wind turbine fits on roofs. This can help to let flats and offices function fully on alternative energy. Suma enters an apartment building in the Utrecht Overvecht district. He takes the stairs up, then the elevator to the highest point. One of the wind and solar boxes of the test project in Utrecht (the Netherlands). Wind Energy It is his sustainable dream that Suma - educated as an engineer - always brings to a dizzying height. He is the founder and director of the company Ibis Power, which places wind turbines on the roofs of flats and office buildings. No ordinary wind turbimes, that's clear. On the roof of the seventies apartment is an elongated container. Inside is a rotating cylinder, which produces electricity on wind force. Wind Turbines High On Roofs Wind turbines. How much wind does it take to make them turn Most of what you would call large-scale wind turbines typically start turning in winds of seven to nine miles per hour. Their top speeds are around 50-55 mph, which is their upper safety limit. Large-scale wind turbines normally have a braking system that kicks in around 55 mph to prevent damage to the blades. "Putting an ordinary wind turbine on a roof does not work. That would be unstable, dangerous and against all building regulations. Putting a mini-wind turbine on a roof, you can. You see that too, here and there on buildings in cities. "They hardly generate electricity," Suma says. "Our mission is to generate enough electricity on the roof for all residents living underneath." It is possible, but then the houses do also need insulation and heat pumps. Recommended:  Wind Turbine From Wood: Made By EAZ-Wind, Netherlands Moreover, the entire roof has to be filled with the square wind turbines. A 'power nest', Suma calls them. The top of the square windmills has to be filled with solar cells, every square inch has to be used to generate green energy. "Only then can you provide an entire flat with it." And still not always. If there is no wind, or it is freezing, the houses still have to drain electricity from the electricity grid. {youtube}                                                                Catching Wind Energy High On Roofs Wind Turbines Make Gas Pipes Not Necessary Anymore With the latest project, it must be possible to remove the gaspipe grid connection for six-and-a-half of the ten floors. The project in Utrecht is mainly a test; the electricity is for one of the houses in the flat. The prospects for Suma in Utrecht Overvecht are good, because exactly this neighborhood has been designated by the municipality as the first natural gas-free area. Recommended:  Wind Turbines Cleaned By Drones The gas network has had its best time here. There must be no new gas pipes but clean energy. The Ibis Powernest costs 55,000 euros (excluding installation costs). That can be recouped in seven to fifteen years, says Suma, depending on the location. "Near the sea it is going faster, given the wind speeds, then near the central Netherlands." Ibis Power works with six permanent employees, at an office in Eindhoven. The windmill of the powernest comes from Taiwan, the upright solar panels China. The company works together with a large construction and energy group for installation on roofs. Recommended:  Vortex Wind Turbine: Energy Generator Without Blades There are also companies that try to sell flat windmill boxes to the ridge of ordinary terraced houses. Suma points from the roof of the flat over the houses and buildings. "They have to get rid of the natural gas as soon as possible." To arrange that, all sustainable technologies and alternative energy sources must be used, he says. Construction companies and municipalities are starting to get that through more and more. All buildings and houses must eventually become natural gas-free. Because of the Climate Agreement of Paris , and to liberate gas extraction area Groningen from quakes. But to make that change really a success, something has to change. The scale must go up, the costs down. In addition, some government regulations must change, Suma says. "Officially our wind energy roof still counts as an extra layer of living, which slows down processes." The tricky thing is also to distribute generated electricity well between all the underlying residential blocks. Wind turbines. Why do they turn so slowly? The job of the tower is to support the turbine and transfer extra wind loads safely to the ground. Too high speed of a large turbine will mean more steel used to make the tower strong enough to withstand the loads and hence cost, again. This is the reason large wind turbine rotate slowly on the rotor side. Wind Turbines In Coastal Areas Apart from Utrecht, there is also a test mill on a roof in Nieuwerkerk aan den IJssel. Now that the attention for climate problems and 'Groningen' is increasing, the phone is constantly ringing at the company. Very different from ten years ago, when Suma started. He came up with the idea when he did PhD research in Miami, where air-conditioners were blowing all day. That made him think. "The energy consumption is cities is heavily polluting, that must be different." He also sees a sales market in the United States (New York), the Caribbean and Asia. Ibis Power wants to work internationally. Suma has just returned from Berlin, where he won a sustainability prize. He will soon have to go to the Chinese city of Shenzhen, where he also hopes to win the prizes. Recommended:  The First Floating Wind-farm Is Operating In Scotland In the Netherlands, the company mainly targets potential customers in the coastal provinces. There are the most energy-hungry buildings. "We already count 2,163 suitable buildings," Suma explains. The latest project will be in Rotterdam. A 'powernest' must rake every bit of wind blowing in the city. Valves of the metal casing therefore press the wind through the opening so that it gets an extra swivel. "The wind speed accelerates to 160 percent of the original power," says Suma. "The funnel effect", he calls it. Wind Turbines On Roofs With Different Shapes It sounds so unique, a reclining windmill on a roof. Nevertheless, Ibis Power is not the only one. There are some competitors who want the same, says Suma. "Our advantage: they have less practical experience." There is a Swiss company that sells the same kind of windmill roof, for flats and offices. They are nice and high. There are also some companies that try to sell flat windmill boxes to the ridge of ordinary terraced houses. They can also catch some wind and produce electricity, to feed the lamps directly. One appeared on a house in Vlieland (island in the north from the Netherlands), the yield was still thin. Before you go! Recommended:  Airborne Wind Energy Systems: A New Way Of Energy Supply Did you find this an interesting article or do you have a question or remark? Leave a comment below. We try to respond the same day. Like to write your own article about wind energy? Click on  'Register'  or push the button 'Write An Article' on the  'HomePage'
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