Cost-effectiveness & feasibility analysis for Bladeless turbines

Cost-effectiveness & feasibility analysis for Bladeless turbines

Cost-effectiveness & feasibility analysis for Bladeless turbines

Over the last decade, the utilisation of renewable energies, especially from solar and wind sources, is growing at a much faster pace than the rest of the economy in Europe and worldwide. The significant cost reduction of solar photovoltaics (PV) and wind power during this time have increased their attractiveness for those customers who are interested in saving money and help the environment with self-generation systems.

This article is going to briefly explain the current situation of different technologies in the market and try to give a reference of what is important to analyse to get a general idea about the possibilities of investment in your own renewables installation.

Small wind technologies //

Low power wind turbines are a great method of supplying renewable energy to households, urban networks and infrastructure, or off-grid systems when it is required. When setting up in favorable conditions, they can provide clean energy in the most satisfying way despite they aren’t as powerful as other energy generation methods.

The given article shows some features of each wind technology currently available, collecting the advantages and disadvantages of them. To start with the analysis it is important to highlight the two main families existing in the wind technology: Horizontal axis turbines (HAWT) and Vertical axis turbines (VAWT). We are adding a newborn third family just for Vortex turbines. 



The drawing above corresponds to turbine models which could be typically found in the wind turbine market. In order: Horizontal axis wind machines, Vertical axis wind machines,  Oscillatory wind machines (Vortex).

Horizontal axis wind turbines (HAWT) are the most common type due to their maturity. All the components (blades, shaft, and generator) are on top of a tower, and the blades facing the wind. The shaft is horizontal to the ground, it has a gear on the end which turns a generator and, in the case of big turbines, brakes to slow it down in case the wind is too much.

In vertical axis turbines (VAWT) the shaft and the blades are connected vertically to the structure. The main components are closer to the ground providing a more stable center of gravity. This kind of turbines are newer than horizontal axis based and there are many different designs and models nowadays with different efficiency and behavior.

Vortex Bladeless wind generators are not considered one of the families mentioned before since there is not a rotation movement nor a shaft in the structure. The basis of this technology is a phenomenon called vorticity, “vortex shedding” or “vortex street effect” [1]. Bladeless turbines work converting wind power into electricity on the oscillation that happens when the structure of the device reaches the same frequency of resonance as the wind vortexes created behind. This is known in fluid dynamics as “Vortex Induced Vibrations“.

In this article, we are trying to study those three families at the same level. However, this cannot be properly done since, compared to traditional wind machines, Vortex is not a fully developed technology yet; all the data provided about Vortex turbines is estimated with the prototypes’ expectancy and the company’s goals.

“Expected energy production and real production never matches. Each wind conditions and each generation goals will have a technology and a design that fits better.”

Understanding wind turbines

These turbine families behave different according to wind features. An average cut-in point (start speed) for small wind HAWT is around 4 m/s. For VAWT it is a bit larger, around 4.5 meters per second [5]. Vortex turbines can reach a synchronism with vortex shedding from 3 m/s and enter into full resonance a little after (depending on wind’s quality), which means that the cut-in point would be around that wind speed. Design parameters on Vortex’s inner rod can modify the cut-in point of the device, giving a calibrable wind speed range.

The turbine’s design is crucial for generating energy at low wind speeds, this also means reaching the maximum power production earlier. The table below shows an output power approach at different wind speeds for average HAWT and VAWT turbines alongside an estimation for future industrialised Vortex Tacoma turbines (2,75m height) [4].

Wind speed (m/s)

Small HAWT

Small VAWT

Vortex Bladeless


0 W

0 W

3 W


72 W

44 W

35 W


104 W

66 W

60 W


135 W

86 W

80 W


160 W

105 W

93 W

Nominal speed

400 W

200 W

100 W

The aim of the table above is to introduce about the topic of the real output and efficiency of different turbine technologies. Normally, electric machines are expected to work in design conditions, which mean that most of the time they should be working at nominal power. However, wind turbines at the ground level seldom reach their nominal power peak since the high wind speed required is not that common.

An important factor to keep in mind for the analysis of wind technologies is the output power which a turbine is able to reach in real conditions. Manufacturers are usually showing in their catalogs the nominal power of the generator i.e. the power in which the wind machine is expected to work in perfect conditions. However, it is common to omit the information about how much wind speed is required to reach the nominal power or, in some cases, be too optimistic in the cut-in speed and power curve without minding other wind’s factors. All of this gives as result devices that are not really feasible for some environments.


Wind potential

To continue, the map below shows average wind speed levels which can be found in Europe throughout a year. Each wind speed has associated a wind potential (W/m2) estimation, computed according to different parameters such as air density, surface, and wind flow directions. Average wind speeds in European locations with significant probability are commonly between 4 and 6 m/s a few meters over the ground level, which means that the aerogenerator chosen should be adapted to this real conditions. On the featured image above you can see a more detailed map showing the wind potential worldwide. It is important to determine which is the operating range of each technology for having a better approach about the total output power a wind turbine would provide.

The following map collects wind features and average speeds in a year for different European regions, this can be extrapolated to other areas:



Speed (m/s)

Potential (W/m2)

















  • Figure 1. European onshore Wind Atlas, wind potential distribution [3]
  • Table 1. Key of the Wind map


The wind potential is a computation which determines which would be the maximum power offered from wind at a determined wind speed. However, wind turbines cannot catch all the energy on the wind, since that would stop it. Depending on the turbine model, it is possible to get higher or lower power from the wind, being the Betz’s limit the maximum that a wind machine can harness  (59,3%).

Although it is briefly explained and real wind conditions are variable, it is possible to explain how those features affect to the different turbine families mentioned before, thus understand which are best wind speed ranges and conditions for each technology.

“Wind turbines at the ground level rarely reach their nominal power. When turbines are able to work efficiently on low wind speeds, operation time is increased”


feasibility comparison //

The graph below gives an estimation of the useful output of each turbine family divided by their nominal output. The goal of this is to compare the efficiency of each technology for the most common wind speed ranges around the world. The “percentage of usage” of each technology is not directly proportional to their nominal power, quite the opposite, those turbines which reach a higher nominal output usually draw a worse efficiency curve. In other words, if a turbine can reach a higher max power output, it will perform worse on low winds.

When turbines are able to work efficiently on slower wind speeds, the operation time increases. The way to understand the graph below is to think about how much power is produced divided by the nominal power (expected usage conditions) at a specific wind speed.


Graph 1. Usage of output power

Although the graph above seems to put Vortex technology in a better position, it is just a matter of perspective. The estimation on the graph represents the efficiency of an average of different turbine families and explains why Vortex’s behavior would respond better to common situations at ground level (wind speeds between 3 and 8 m/s) in comparison with an average of other technologies. In other words, horizontal and vertical axis turbines usually require higher wind speeds for reaching their nominal power while Vortex could respond normally for common wind speed ranges.

On the other hand, Vortex’s turbines stop working beyond 11-12 m/s where regular wind turbines usually keep going, so the earlier you start generating, the earlier you have to stop. Then if your place has high winds all the year long, then a regular wind turbine may work better for you. We can see how Vortex technology and regular wind turbines are not competitors but offer different features for different conditions.

As a conclusion, we could say that for areas with a common wind range it is almost useless to have a wind turbine that is only able to give you a max power just a few times per month, when wind is strong enough. However, a turbine which is able to be working for a longer period of time, even if it produces less power, would give you a higher total energy on long-term. Each wind conditions and each generation goals will have a technology and a design that fits better.

“Vortex technology is pretty young compared to other ways of harnessing energy and it is still far from being fully optimised.”

Installations’ ROI

Moving to the economic aspects and taking into account the previous explanation about usage, it is important to highlight that manufacturers are always too optimistic on their products’ specs when they are selling, so many of them provide data for a turbine that is supposed to work in nominal conditions of perfect wind most of the time. However, customers are not usually going to have such marvelous atmospheric conditions very often, so the expected energy production and the real energy production never matches. Furthermore, manufacturers don’t tend to tell you about maintenance costs, installation costs and some other requirements of each technology.

An approach study for obtaining some simply economic conclusions is to analyse the yearly energy produced at different wind speeds, keeping in mind the investment required of the turbine and assuming that the comparison is going to be done under the same conditions. 

The factor obtained represents the unit of energy (kWh) divided by an estimation of investment for a fixed period of time (one year) [2]. This method is not the usual way to proceed for making a comparative study of different energy production systems since there are many other parameters to keep in mind which have their importance in the overall costs of the chosen system. The most accurate study is the Levelized Cost of Energy (LCoE) which is able to join all approaching factors.

Although there are many aspects to be studied on an aerogenerator’s behavior over time, I have not taken into account several factors that are necessary for a proper LCoE calculation due to the lack of information from the small wind manufacturers. We are going to take into account just initial investment instead. The curve represented below is a factor that collects all the aspects mentioned before alongside different wind speeds calculated for a time period of one year (kWh/€ per year). 


Graph 2. Energy production factor for one year

The higher energy generated plus the lower investment gives the better factor. Both ways of thinking are suitable for understanding the logic of this study which demonstrates the economic effectiveness of investing in different types of technologies. Summarising the graph, it is easily observed that Vortex technology expects to be as competitive as others in the small wind market according to this given results.

This factor is estimated to be higher for Vortex turbines at the very beginning and end of its wind speed interval since we are not taking into account some aspects that would affect the aerogenerator’s efficiency over time. We are not counting with long-term cost differences in installation and maintenance requirements either, which are expected to be lower on Vortex turbines compared to regular ones. Those features are impossible to be calculated without an experimental study comparing the three kinds of turbines working for one year.

Other parameters that could affect the overall investment and costs are, for example, that all HAWT turbines need to change direction to be oriented with the wind stream, this requires time and sometimes an energy cost. Some VAWT turbines don’t start on their own so they need to consume some energy to start rotating. The capacity of regular wind turbines to adapt to wind changes is supposed to be slower compared to Vortex turbines, which are completely circular thus always well oriented to wind, and are able to start and stop on their own without human intervention.  We are not counting on those parameters either for the graph above.

Without the before mentioned aspects, we can perceive that all these technologies are giving very similar results. Are precisely those little operational and economical features what would make the difference on the cost-efficiency over time of a wind power installation based on each kind of wind turbine family.

“If the conditions allow it, hybrid installations are one of the best solutions to deal with the low power density of renewables systems nowadays”

Photovoltaics symbiosis

Cost-effectiveness & feasibility analysis for Bladeless turbines

One of first functional prototypes along with a solar panel. Avila, Spain 2015

Solar power is considered a great solution for energy self-consumption systems. Offering a good amount of power, today’s photovoltaic facilities are one of the most important sources of green energy. It is a mature technology with decades of development and optimisation. Nowadays and for moderate climate locations such as Centre and South Europe, photovoltaic power has become one of the most popular for customers who want to generate their own electricity at home (a thing that wasn’t that easy a few years ago). Furthermore, the cheaper trending prices of installations and manufacturing during the last years makes solar the queen of on-site energy generation.

From the story of photovoltaics we can understand how a brand new technology as Vortex is, or as solar panels were decades ago, needs years and years of development, trials, optimisation, and improvements. Vortex technology is pretty young compared to other ways of harnessing energy and it is still far from being fully optimised.

We will have to wait for a little to see the whole potential of VIV wind generators based on oscillation, but the basis is settled down, which is already a big leap for renewables.

Many companies are evaluating the possibility to install combined facilities whose aim is to expand the possibilities and efficiency on generating electricity. For low power facilities or residential installations, photovoltaic combined with wind power is being a challenge but also a perfect way to have a more constant and efficient power generation since you have sunlight just a few hours a day but wind can blow 24/7.

Vortex turbines may represent many advantages for hybrid wind-solar solutions in comparison with other wind technologies due to its low maintenance and installation requirements. As long as other features like low noise production, low wildlife impact, low space needed for the operation, low shadow profile over the solar panels (this is a very simple but a very big one), etc… Talking about windmills it is important to mind that they project a tall shadow that is moving fast due to the blades. This moving shade can be a problem talking about hybrid wind-solar installations (you don’t want shadows over your solar panels!) and when combined with noise it may provoke anxiety on humans and animals.

“From the story of PVs we can understand why a brand new technology needs years of development, trials, optimisation, and improvements.”

Combined supply systems

As it was explained before, Vortex turbines are also designed to work with other technologies such as solar. If the environmental conditions allow it, the combination of both technologies provides the customer the exploitation of two natural resources at the same time. These combined installations are one of the best solutions to deal with the low-density power which renewable energy systems are offering nowadays since it is usually needed a lot of free space for generating a few kilowatts during a determined period of time with a wind or a solar generator.

Vortex’ aerogenerators offer a good opportunity to be combined with photovoltaic technology thanks to the small size and small shadow projection. There is also a very clear advantage on the “wake effect“; this issue is common among wind technologies, it is caused by the movement of the structure, usually blades, which rotate according to the wind flow through the structure creating a turbulence that affects negatively to downstream and nearby devices, making them less efficient. In other words, the wind flow behind a working wind turbine has worse conditions and less energy potential. This is greatly minimised on oscillatory aerogenerators like Vortex.

It is expected that hybrid facilities increase their working hours compared to just solar or just wind facilities. For instance, in typical European regions, large-scale facilities can reach more than 1200 working h/year on solar resources and more than 1000 working h/year on wind resources [5]. It means that the combination of both resources can increase energy production significantly. Furthermore, Vortex turbines are easily integrated into PV installations so could have positive consequences on the LCoE, since both methods would share equipment and wiring; allowing better battery sizing and sharing other devices needed for low power facilities such as an inverter or a regulator.

Photovoltaic technology is a great opportunity to be combined with Vortex, but it is important to highlight that it is not the only solution. Vortex always can work as a single installation in the same way as other wind technologies could work in combination with solar power as well. There is a proper combination for each kind of location.

Energy density increase


coFounder David Yañez with a Vortex Tacoma in Avila, Spain 2018

One of the biggest problems with renewable energies is the low power density that they have. It is required a huge space to produce the same amount of energy with renewables that other conventional energy sources produce in a small facility.

Talking about wind farms it is necessary to keep in mind the distance among turbines due to the wake effect mentioned before. The wake produced by Vortex’s devices, unlike conventional wind turbines, does not involve the same consequences to nearby equipment. As explained before, this wake effect is provoked by the structure of the turbine which modifies the wind flow that goes downstream. This is not necessarily disadvantageous for nearby turbines in the case of Vortex due to its oscillatory operation, but definitely results in an efficiency leak for regular rotatory wind turbines on wind farms.

Regarding the paragraph above, bladeless turbines offer a distance reduction between devices thanks to its different design, allowing to install a larger number of devices in a smaller facility. Furthermore, the angle of oscillation of Vortex’s masts is around 5 degrees which means that when the turbine is working in normal conditions, it is going to cover an area of, give or take, 1 m2 in total, counting with the size of the turbine and the necessary free space surrounding [4]. On regular HAWT turbines, this area needed for the turbine to work could be even five times the total height of the turbine, which is huge for a wind farm and sometimes is quite a lot for a residential installation as well.

“Vortex Bladeless expects to be as competitive as other technologies in the emergent small wind market”


Conclusion //

To conclude, it is important to highlight the grade of development of the different low power renewable technologies studied in this article. A proper comparison must be done under similar conditions and similar devices which have about the same level of maturity, namely, similar power generation features. This cannot be properly done now since Vortex is not a fully developed technology yet; all the data provided about Vortex turbines is estimated with the prototypes’ expectancy.

For further economic studies about the possibilities of bladeless turbines in the low power market, it would be interesting to analyse in detail the levelized cost of energy (LCoE) for each kind of wind turbine family.  LCoE value represents the costs for producing one unit of energy along the lifetime of the facility. However, the accuracy of this computation depends on many assumptions which could not be obtained in basic terms due to the lack of information available. This article is just willing to explain in simple words what would be the situation of Vortex turbines in the small wind market nowadays, without keeping in mind other parameters but the initial investment. Other aspects like low maintenance costs and low noise levels make this technology to seem the best option on combined renewables installations where quiet and peaceful environments are necessary.

Far from being a promotion text, my goal with this article is that customers can have more information on the decision making when the different technologies are compared. It is important for you to keep in mind the wind potential of your location and the specifications of the turbine before you choose a technology for your residential hybrid installation. Although Vortex turbines could work as a single facility,  first expectations are according to be used on hybrid systems in those places where sun and wind conditions allow a combined installation.

Focusing on Vortex development, it is important to mention that there are parallel studies for implementing this idea on high power systems. This means that the researching ways are continuously being improved to reach higher expectations. How far can Vortex technology go? Will we see oscillating devices all around the landscape someday? The basis is already settled, time will tell!


Article written by:
Luis Perez Maroto, Economics and management of power engineering. Technical University of Prague


  • Featured image: “Global Wind Atlas” wind map interactive reference. Retrieved:
  • [1] “Vorticity, Circulation and Potential Vorticity”. Columbia University. 2018. Retrieved:
  • [2] “Renewable energy: Physics, engineering, environmental impact economics and planning” Ben Sorensen. 1979. Book
  • [3] “Wind resources in Europe” Risø National Laboratory, Denmark. 2008. Retrieved:
  • [4] “VIV resonant wind generators” David Yáñez Villareal. 2018. Paper
  • [5] “Wind Turbine Wiki, Output faqs” National Wind Watch. Retrieved:


  • P.Allan Velenosi
    Posted at 17:06h, 08 November Reply

    Thankyou for keeping your fan’s updated on the progress of the’s appreciated..Allan Velenosi

    • Vortex Bladeless
      Posted at 15:53h, 11 November Reply

      Thank you for your support! 💙

      • Premkumar
        Posted at 05:15h, 28 November Reply

        How much it cost
        I’m from india how can i buy this one

        • Vortex Bladeless
          Posted at 18:03h, 13 December Reply

          Sorry they are not for sale yet

  • Susan Jarvie McNeill
    Posted at 02:05h, 05 November Reply

    Great to see lots of interest from around the world. Been following the progress of this technology since the crowdfunding on Indiegogo. Keep up the good work.

    • Vortex Bladeless
      Posted at 15:54h, 11 November Reply


  • Atilio Falco
    Posted at 05:20h, 01 November Reply

    What about lightning? Are your Vortex safe concerning lightning?

    And flooding?

    Also, would the Vortex come with a full additional tech in order to, say connect it to a domestic power grid? This means transformers and some kind of regulatory controls to manage the supply of electricity.

    I look forward to the final product and wish you the best of luck!

    • Vortex Bladeless
      Posted at 13:01h, 05 November Reply

      Don’t worry about lightning, they are the same vulnerable as antennas or slender structures, regular lightning rods nearby would do the job. Floodings big enough sweep everything!! it is just too much nature force. It surely won’t come with any additional elements, same as happens with solar panels or regular small windmills, you need to set up electronics and batteries to use your installation.

  • Christopher Fry
    Posted at 20:05h, 31 October Reply

    Have you modeled the effects of surface smoothness of your cylinder on efficiency?
    I can imagine that a very smooth surface, a rough surface, or perhaps
    a complex surface like golf ball dimples would affect power output.
    Beware as this might affect noise as well.

    • Vortex Bladeless
      Posted at 13:04h, 05 November Reply

      You have hit the spot!! Indeed roughness of the surface can have a huge impact on high Reynold’s number. By now, the vortex shedding phenomena occur in a range of wind speeds and we have clues that changing the surface will reflect better results on some geometries and sizes of the mast. This is a hard investigation that requires complex fluid dynamics simulations, by now on the sizes of device we are working it seems not necessary, but indeed is a field to study in the future.

  • Loic Lerminiaux
    Posted at 09:27h, 23 September Reply


    have you considered the impact of icing in Nordic climates? can it work if iced or does not need some de-icing system (or manual cleaning)?


    • Vortex Bladeless
      Posted at 18:32h, 25 September Reply

      Indeed icing can be an issue as it is for regular wind power, but in our case, because of overweight on the mast. We haven’t tested such conditions yet, but we tend to think that we won’t have as many problems as regular windmills since we have no moving parts in contact.

  • Marie-Christine Bevington
    Posted at 00:50h, 15 August Reply

    I love it! especially the fact that it doesn’t harm birds. Please let me know when it will be possible for the public to invest in this fascinating technology.

    Not being a scientist I don’t understand why the vibrations don’t generate noise, like with organ pipes, But, as an architect my vision is of a ring of vortex towers all around the perimeter of an atoll, like giant asparagus gently swaying in the wind.

    Thanks for sharing.

    • Vortex Bladeless
      Posted at 12:09h, 15 October Reply

      Thanks! Indeed any movement generates “noise” (energy that is leaked in this way). But picture this, do you hear your arm if you move it big and slow? Now move it faster but on a windy day, can you really tell you are producing any noise? In our case, the frequency is either too low or the movement either too small to be heard.

  • Hubert Murray
    Posted at 07:18h, 08 August Reply

    Very good work. We are currently challenging the Junta de Extremadura who want to install highly invasive big windmills in a particularly sensitive area for birds, cultural patrimony etc. One line of argument is that distributed power (a PV and wind combination) is more efficient and less invasive. Your Vortex solution would work well in small towns and villages. And it’s Spanish!

  • Alain
    Posted at 18:51h, 18 July Reply

    Je suis impressionné par la maitrise déjà aboutie de votre technologie. C’est une innovation qui devrait avoir un bel avenir. Surtout pour les particuliers en campagne et en ville.
    Dans l’état actuel de vos recherche, avez vous estimé le coût approximatif d’une installation pour produire 10 000 kWh/an consommés par une maison située en zone de vent de 6m/s en moyenne ?
    Vous souhaitant le succès, cordialement

    I am impressed by the already mastery of your technology. It is an innovation that should have a bright future. Especially for individuals in the countryside and in the city.
    In the current state of your research, have you estimated the approximate cost of an installation to produce 10,000 kWh / year consumed by a house located in an area of wind of 6m / s on average?
    Wishing you success, cordially

    • Vortex Bladeless
      Posted at 09:09h, 19 July Reply

      Thanks for your kind words! We can make estimations but without a final design and without an industrial production those kind of costs are impossible to be calculated properly.

    Posted at 21:20h, 24 June Reply

    Very good technology in wind mills,
    It is usefully in rural electrification to combined system solar and vortex wind turbine.

    • Vortex Bladeless
      Posted at 16:55h, 25 June Reply

      These small-wind devices we are working at right now are designed for house/rural self-production and for low-consumption systems off the grid (lights, sensors, automatic doors..), easily combinable with previous solar installations for more efficiency and ease of installation. Bigger devices for wind farms or medium-scale generation will be developed in the future.

    • Enzo
      Posted at 15:29h, 02 August Reply

      Excuse me, this is to adjust a typo in the previous comment about the calculation. I think I missed the conversion in kw, so the result should be divided by 1000. 3/1000 x 24 x 365 = 26.28kwh of annual production per unit. Is this calculation correct?

  • Russell Gallon
    Posted at 10:43h, 20 June Reply

    I have solar power and am interested in a bladeless generator for domestic use in the UK. Is the UK set u p yet. if not when can I find out about costs to install a suitable generator

    • Vortex Bladeless
      Posted at 16:41h, 25 June Reply

      I’m sorry to tell you we are not under commercialization yet. UK is one of the nicest countries in Europe for wind power, if you can wait a few years we will have products for you soon.

  • Mrs Rosemary Mitchell
    Posted at 11:24h, 19 June Reply

    Buenos Dias,
    I live in Scotland on the Solway Firth, west coast.
    I am looking to install a wind turbine. I love birds and worry about turbine blades.
    Your turbine is just what I am looking for.
    Please advise the cost and if you have a distributor in the South of Scotland or the North of England..
    I am wanting to install this in the next two months, so would appreciate your early response.
    Rosemary Mitchell.

    • Vortex Bladeless
      Posted at 15:55h, 25 June Reply

      Hola! I’m sorry to tell you we are not commercializing yet, and won’t in the next two months. If you suscribe to our newsletter list we will keep you updated about our development and when the first series is launched you will be able to get one (we hope mid-late 2020). Gracias!

  • John & Carillon Nicol
    Posted at 21:09h, 01 June Reply

    We are a small organic off-grid farm in Washington State USA. Currently we have solar and would like to add eind power. We would be delighted to be a testing ground for your turbine. Any plans to introduce into the Western Hemisphere?

  • Edson P. Rodrigues
    Posted at 16:14h, 21 May Reply

    Bom dia.
    Li o artigo sobre a tecnologia Vortex , energia cinética por canudos e vibração, achei sensacional.
    Sou estudante de engenharia civil me formo este ano 2019, e um dos trabalhos e pequisa é referente a inovação de energia limpa e alto sustentável.
    O simples fato da vortex, extrair energia e transformá-la é sensacional.
    gostaria de saber mais e se esta tecnologia já esta disponível aqui no Brasil e se ainda não esta…. gostaria de ser um dos nais para difundir seu equipamento no mercado Brasileiro, onde tenho certeza que será muito bem aceito.

  • Neeraj Rai
    Posted at 20:17h, 02 May Reply

    Nice work. waiting for it’s commercial production and availability in India.

  • Andrew Galea
    Posted at 02:33h, 28 April Reply

    Truly innovative! Well done.
    Apart from the fact that this is a new concept, what are some of the product’s limitations?
    Also which areas do you hope to improve in the future?

    • Vortex Bladeless
      Posted at 12:30h, 01 May Reply

      You can consider a limitation that the power generated is not as much as a regular wind turbine of the same height because of the triangular sweep area we have. But it is because of this why it is silent and harmless to wildlife, so it is more a consequence. We hope to improve on this, the amount of energy harnessed from the wind is more than enough, but a more efficient alternator would convert more energy into electricity, therefore more output per the height of the device.

  • dez nutz
    Posted at 21:55h, 22 April Reply

    how much does it cost

  • Dilip Kumar Ankit
    Posted at 18:30h, 19 March Reply

    What is the weight of the cylinder

    • Vortex Bladeless
      Posted at 15:59h, 08 April Reply

      The prototypes 20Kg with the anchoring! It may vary on the industrialised products

  • Umberto frota
    Posted at 18:17h, 25 December Reply

    Hi people from Vortex we’re waiting 2019 and vortexbladeless

    • Vortex Bladeless
      Posted at 17:08h, 15 January Reply

      This year is going to be decisive for us! We hope we can keep in the schedule and try to produce the first beta series by the end of this year.

  • andre husemann patti
    Posted at 15:01h, 10 December Reply

    um grande passo para um futuro .Logo o brasil vai estar integrado a nova tecnologia,
    vamos juntos

  • Marco A P E SOUZA
    Posted at 00:27h, 09 December Reply

    Any pricing idea ?

    • Vortex Bladeless
      Posted at 11:16h, 10 December Reply

      Dear friend pricing has to be calculated after you set up all your manufacture, shipping, and post-purchase services. However, our goal and the objective price we settled with the European Commision is around 350€ for Vortex Tacoma (2,75m). We want our turbines to be as affordable as possible, but depending on the mentioned processes this price can be higher or lower in the future so we prefer to don’t announce an official price yet.

    Posted at 01:45h, 01 December Reply

    Great news for the world with another competitive opportunity to replace fossil fuels. Definetely the residential market segment is very attractive and/or regions where we don’t have high winds year round. I would like to get your timing for commercial introduction in North America (USA, Mexico, Canada); any idea of prices for your products; interest in Commercial development and/or Manufacturing in America.

  • Ruud IJtsma
    Posted at 08:15h, 04 October Reply

    Nice article! This supports the opportunities for the Vortex Tacoma in a highly populated and ‘windy’ region as the Netherlands.

  • Terry Nother
    Posted at 01:35h, 03 October Reply

    Hello…after reading the article & comments, it struck me that there may be some inspiration found in the works of Viktor Schauberger. Comprehend & copy Nature.
    I promote the Kelso VAWT, made in Canada. The vacuum created by the Solar & Big Wind is ready to be filled…..kind regards….Terry

  • Robb Puckett (Texas, USA)
    Posted at 22:39h, 02 October Reply

    You’re doing great work and I look forward to the day it’s available in the global market. How is your investor funding going?

    • Vortex Bladeless
      Posted at 16:55h, 16 October Reply

      Thank you very much Robb! At current moment we are under EU’s public funding and cannot take more private investment, but thanks for your interest!

  • Ruud IJtsma
    Posted at 11:33h, 02 October Reply

    I know it is difficult to compare but normally a small HAWT or VAWT needs be considerably higher as the Tacoma you are aiming for now to get an acceptable power generation. A standard HAWT windmill of 400W already requires a rotor diameter of appr. 1,2 meters.
    Suppose a next generation Vortex turbine will have the height of the windmills you are comparing with in the article (lets say around 5 meter), then what will this mean for the ROI? I should expect that it will work out very positive for Vortex or am I mistaken?

    • Vortex Bladeless
      Posted at 16:35h, 16 October Reply

      Dear friend, for this article the total height of the devices has not really taken into account, we are assuming the same place and the same wind conditions. There aren’t many small wind generators in the market, just a few under 500w, ours would be considered “micro-wind” for its power output so it is hard to make a real comparison. To make a nicer comparison we would have to find a wind turbine with a similar capture area as ours. Talking about regular wind turbines this means they would be ridiculously tiny. In the case of regular HAWT or VAWT for home installations, they are usually installed high where the wind is better, and this is made by making the tower higher, but the aerogenerator itself remains the same, it is just higher. You can think similar for Vortex and install them as higher as possible.

      About bigger Vortex devices, it is desirable since power generation grows with the cubed height of the mast. But as a Startup, our best option to keep alive and try to enter in the market is with a smaller and cheaper device. About ROI of bigger Vortex devices, you are right, costs won’t grow as the power generation grows, so the bigger the more efficient and cost-effective.

      To sum up, we prefer to compare ourselves with PV solar than with other wind turbines. Our goal is to make a wind turbine with similar features that solar offers nowadays, not competitors but complementary to other energy technologies.

  • Ruud IJtsma
    Posted at 11:00h, 02 October Reply

    Nice article! This supports the opportunities for the Vortex Tacoma in a highly populated and ‘windy’ region as the Netherlands.
    Combining with solar farms is a nice idea but will depent on the system that is used to clean the solar panels.

    If solar cells keep on getting cheaper and further increase in efficiency then in the long run you might think about integrating thin flexibele cells into the design. A vertical orientation stilll gives an output around 65% compared to the ideal angle and azimut and the ‘infrastructure’ for transporting the energy that is generated by the solar cells is already available. It is even possible now adays to ajust the colour of the solar cells to the colour of the Tacoma without losing much efficiency.

    • Vortex Bladeless
      Posted at 16:11h, 16 October Reply

      That is a very nice idea! We have thought about this before. Might be there flexible solar cells enough lightweight to cover up Vortex’s masts without changing the weight ratio so it would improve its overall efficiency a little. On the other hand, the system would be more complicated, more expensive and it would need more maintenance. Right now we are focusing on developing the nicest wind turbine possible, later you just have to improve it with ideas like this!

  • Ananda Karunarathna
    Posted at 01:04h, 02 October Reply

    Is it possible to organize a seminar/presentation in Australia or Sri Lanka or in both countries ?

    • Vortex Bladeless
      Posted at 13:53h, 16 October Reply

      Dear friend, I don’t think that could be possible at the current moment, but we organize some showrooms and meetings at our office here in Madrid. You can also check video conferences and presentations on our youtube channel.

  • Ricardo A. Bastianon
    Posted at 00:04h, 02 October Reply

    Very interesting your paper.

  • Tom Peters
    Posted at 18:37h, 01 October Reply

    Very thorough and very necessary analysis. Too bad it couldn’t be done as LCOE and that the financial analysis doesn’t take into account the much lower operating and maintenance costs of Vortex over time, which create larger financial advantages for Vortex over other systems. As a U.S. resident, I still see challenges for residential use given the number of dead areas for wind speed at a 2.75 meter height. Plus, the average kWh rate in the U.S. in less than half of the average kWh rate in Europe. That affects the ROI significantly. And I don’t think zoning will allow users to mount these on roof tops in many locations to get faster m/s and more unobstructed flow. Still, I think Vortex would be the most economical, fastest ROI and easiest to maintain small wind system in the U.S. in those suburban and rural locations where utility rates are higher than average and the wind speed at 2.75 meters is adequate.

    • Vortex Bladeless
      Posted at 13:22h, 16 October Reply

      Thank you for your kind words! Yeah, we are seeing that legislation for installations over roofs is usually very restrictive. Our system is much lightweight than for example a conditioned air unit and much shorter than an antenna, but sadly it is not that easy talking about renewables installations. However, terraces or plain roofs can be a great option to install wind turbines higher than the ground level (of course the higher, the better wind)

  • Saumyajit Paul
    Posted at 16:37h, 01 October Reply

    Wonderful progress,

    Your technology will be a advantageous to rural electrification in India, where renewable energy is being taken very seriously and solar is gaining big popularity. Vortex can be a good option for hybrid technology. Really curious about your further progress.

    • Vortex Bladeless
      Posted at 13:17h, 16 October Reply

      Thank you very much! ?

  • Alsiddiq Ahmed Omer
    Posted at 15:00h, 01 October Reply

    Please consider the African and the Gulf region; it shall a wonderful solution

    • Vortex Bladeless
      Posted at 13:17h, 16 October Reply

      Thanks! We will!

  • Mr. Obioma Enwereji
    Posted at 14:05h, 01 October Reply

    Vortex we (at Godjen Trust Ltd) commend you guys for this “game-changer technology”. We’re ready to partner with you to deploy the huge benefits of this technology to the energy solutions of Nigeria and Africa, even as partners in progress in any way possible. We wish you guys more success. Always keep us keenly posted.

    • Vortex Bladeless
      Posted at 17:42h, 02 October Reply

      Thank you very much! To talk about a partnership please write us on our contact form

  • Tom Dunlop
    Posted at 13:30h, 01 October Reply

    This all looks really promising. I’m curious as to how the on building tech would work alongside the integrated solar, thermal and storage system that have been developed with SPECIFIC in Swansea Uni. Would be awesome to see this tech on the buildings too.

  • James Ray
    Posted at 12:23h, 01 October Reply

    Great post!

    You may want to hire someone to review your posts for English.

    • Vortex Bladeless
      Posted at 13:26h, 01 October Reply

      Thank you! Yeah, that would be nice. But I’m afraid that all the company’s resources are now focused on the device’s development. Would you be so kind to tell us what mistake did you spot on this article? Thanks!

  • Robbe Wells
    Posted at 12:12h, 01 October Reply

    So encouraging to see an honest approach to the various alternative energy generation systems and the possibilities for hybrid applications. I myself have one off-grid and one grid-tie PV system, east coast and west coast USA where average windspeed fits the Vortex optimum range. BTW… My favorite thing about Vortex: no revolving parts to wear out! As Nick says…Nice work.

    • Vortex Bladeless
      Posted at 13:27h, 01 October Reply

      Thank you very much! ?

  • Daniel
    Posted at 11:47h, 01 October Reply

    hey guys,
    great work so far!

    can you already name a date/scope you expect to join the german market?

    greetings from Berlin!

    • Vortex Bladeless
      Posted at 13:24h, 01 October Reply

      Thanks ?! We hope that late 2019 / early 2020 if everything goes as expected with the certification and industrialisation processes! But I can tell you that the company has plans in center Europe (maybe manufacture there?) since there are more resources and better logistics in countries like Germany

  • Nick McClelland
    Posted at 12:16h, 27 September Reply

    Nice work! It is curious to see a world map just thinking about wind, it helps to understand why the low power wind market can be the future of small off-grid systems.

    • Vortex Bladeless
      Posted at 12:20h, 27 September Reply

      Thanks Nick! We think the same about the small wind market and all its possibilities on residential and infrastructure uses!

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