Category: Wind Techs

Acciona Energy

 Acciona Energy

In 19 countries

The Energy Division of ACCIONA has over 200 companies in 19 countries.

The corporate purpose of most of them is the development of wind parks and the production of electricity from them. Within the wind power sector the group also has manufacturing companies that produce wind turbines.

ACCIONA Energy also has companies that operate in the thermolectric field (biomass and solar thermoelectric), solar (photovoltaic and thermal), biofuels and others.


World leader in renewables

ACCIONA Energía is a world leader in the renewables sector. The company has taken on the mission of demonstrating the technical and economic viability of a new energy model on the basis of criteria of sustainability.

ACCIONA Energía is present in the main clean energies, in line with their different levels of maturity and profitability. It focuses its activities on wind power, in which it is the largest developer and constructor of windparks in the world.

It is also present in other electric power generation technologies based on renewable energy sources -biomass, small hydro and solar-, and also in the manufacture of wind turbines (designed in-house) and the production and marketing of biofuels. It also has assets in the field of cogeneration.

ACCIONA Energía is currently carrying out research projects to produce hydrogen from wind power, to manufacture more efficient wind turbines and to optimize the production of biofuels.

The company has a workforce of over 1,000 people, one of the biggest and most highly qualified in the clean energies field.

The solidity of a great group

ACCIONA Energía is the energy division of ACCIONA, a leading group in infrastructures and services aimed at sustainable development and social welfare.

ACCIONA is a homogeneous and integrated business group with a focus on operations with high added value that enable it to create synergies and make profitable investments in strategic sectors.


Wind energy

A global leader in wind energy

ACCIONA Energy focuses its activity on wind energy, a field in which it has so far installed 5,577 MW at 30 September 2008. It has built 200 windparks for itself and other companies with over 5,500 turbines, making it the world leader in the development and construction of windparks. At the same time, it has 900 MW under construction and around 15,000 MW in development.

The wind power installed by ACCIONA Energy in Spain amounts to 4,471 MW.

On all five continents

As well as Spain, there are windparks installed by ACCIONA in the United States, Canada, Germany, Australia, Italy, Greece, Hungary, France, India, Portugal, South Korea, Mexico and Morocco. Of these, 142 windparks (4,105 MW) are owned by the Group, with an attributable capacity of 3,285 MW. The 58 windparks built for other companies account for 1,472 MW.

ACCIONA is currently building windparks in most of the above mentioned countries.

Current projects are being carried out in the United Kingdom, Croacia, Poland and Slovenia.


In 2007, ACCIONA Energy produced a total of 7,494 GWh of wind energy, of which 6,316 GWh were produced in Spain and 1,178 GWh in other countries. Attributable wind energy generation reached 5,570 GWh.

In the first nine months of 2008, the wind energy production was 5,840 GWh (4,784 GWh in Spain and 1,056 GWh in other countries). The attributable wind energy generation was 4,620 GWh.

Mini hydro

19 small hydro plants in operation

ACCIONA Energy has 19 small hydro power plants located in different river basins in Navarre (Spain). Their total installed capacity is 58.79 MW.

In 2007 hydroelectric production from these plants reached 193 million kilowatt-hours. Until September 2008, the power output was 182 GWh.

ACCIONA also handles the operation and maintenance of another six hidroelectrical plants.


Three plants in operation and seven under development

ACCIONA Energy is present in the field of biomass with three plants that total 33 MW of installed capacity. They produced around 240 million kilowatt-hours (kWh) a year.

The largest is a 25 MW cereal straw-fired plant in Sangüesa (Navarre), a pioneering facility in southern Europe in the exploitation of this source of renewable energy. Its average annual output is around 200 million kWh.

In addition to the Sangüesa plant, ACCIONA Energy has biomass plants in Talosa (province of Soria) and Pinasa (Cuenca), each one with 4 MW capacity.

New projects

The company is giving a boost to the biomass business in Spain. It plans to install seven new plants in different Spanish regions, which will be entering into operation between 2010 and 2012. They total 110 MW of capacity, 306 million euros investment and an estimated annual output of 880 million kWh. These facilities will represent 175 direct and 515 indirect new jobs, mainly devoted to primary sector.

In the region of Castilla y León, it is developing three new plants summing 55 MW of installed capacity and represent an investment of 140 million euros. The three facilities -located in Almazán (Soria) -15 MW-, Briviesca (Burgos) -15 MW- and Valencia de don Juan (León) -25 MW- will be participated by the Regional Energy Board (EREN).

Altogether the three plants will produce around 440 million kWh a year, equivalent to the demand of 180,000 homes. They will also create 300 jobs and will avoid the emission of 423,000 tonnes of CO2.

The plants planned in Castilla-La Mancha are located in Mohorte (Cuenca) and Alcázar de San Juan (Ciudad Real), with a total investment of 86 M€.

ACCIONA also projects to install a 15 MW biomass plant in Miajadas (Cáceres) and a 10 MW one in Utiel (Valencia)

Solar energy

Leaders in solar energy

ACCIONA works with all three solar technologies – concentrating solar power (CSP), photovoltaic and solar hot water – amounting to a total owned capacity of 194 MW, of which 113 MW are owned by the company.

The company has so far installed 81.32 MW for other companies, of which 66.18 MW are photovoltaic, 14.14 MW are solar heating and 1 MW are CSP.

Technology Owned capacity Capacity for other companies Total capacity
CSP 64.00 1 65.00
Hot water 0.72 14.14 14.86

The largest concentrating solar power plant in 17 years

In June 2007, in the state of Nevada (USA), ACCIONA connected to the grid the the largest CSP facility of its type in the world in the last 17 years: the 64 MW Nevada Solar One plant. The company has a 97.7% stake in the facility, which is operational since June 2007.

ACCIONA has various CSP plants under development in Spain – all of which have a capacity of 50 MW – and is also involved in major projects in the south-western United States.

The leading developer of photovoltaic energy in Spain

The photovoltaic capacity installed by ACCIONA at 30 September 2008 amounts to 114.44 MW. Through its subsidiary ACCIONA Solar, the Group has developed the concept of “huertas solares” (solar gardens), a system that has allowed more than 3.500 people to become owners of photovoltaic installations.

The “huertas solares” installed by the company – 18 in total – amount to a capacity of 61,5 MW and are located in diferent Spanish regions.

ACCIONA is currently building what will be the biggest solar photovoltaic plant in the world in Moura (Portugal), with a capacity of 46 MW. It is expected to be fully grid-connected by December 2008.

Solar hot water

In the field of thermal solar energy (solar hot water), ACCIONA Solar has installed 14 MW to date, virtually all of which has been for other companies.

The company is the leader in the installation of this technology in Spain.

Energy efficient building

ACCIONA is also involved in the field of energy efficient buildings, incorporating solar technology as much as possible.

The most notable example of this is ACCIONA Solar’s head office, a building which consumes 52% less energy than a conventional building of the same characteristics, thanks to the use of numerous measures for using energy efficiently and making energy savings, covering 48% of its needs from photovoltaic solar power – electricity; thermal solar power – climate control; and biodiesel.

This means that the office is classified as a “zero emissions” building, as it can cover its energy requirements without emitting CO2.


In biodiesel and bioethanol

ACCIONA Energy works in the area of biofuels for transport, a sector which represents over 30% of the greenhouse gas emissions in the OCDE countries and 50% of the global oil demand (67% in the European Union).

The company has already presence in the field of biodiesel, with a 70,000-tonnes production plant in Navarra, and a 200,000-tonnes one under construction in Bilbao. It also owns a 26,000-tonnes bioethanol plant in Castilla-La Mancha (central Spain).

The European Commission has set the objective of a 5.75% quota for biofuels in road transport consumption by 2010. Spain has adopted that goal by establishing a 5.83% quota in the Plan for Renewable Energies, approved by the Government in 2005. The EU plans to increase that goal up to 10% in 2020.

Wind turbines

ACCIONA Windpower, a global supplier

ACCIONA Windpower, is the ACCIONA’s subsidiary company that works on the design, manufacture, field assembly and marketing of wind turbines,  based on the experience of the group to which it belongs in the operation and maintenance of wind power facilities worldwide. It produces 1,500 kW and 3,000 kW wind turbines which have been designed from the point of view of the wind farm operator interested in achieving the best performance throughout the working life of the machine.In 2007 ACCIONA Windpower produced 582 turbines (873 MW). This figure is higher than the company’s production in the three previous years and duplicates the 2006 figure (426 MW), thus consolidating its position in the world ranking of major wind turbine manufacturers. The company expects to finish this year with over 1,500 MW of new capacity installed.

For years after having launched the AW-1500, one of the most reliable wind turbines in the market of the megawatt segment, ACCIONA Windpower introduced the new AW-3000 at Windpower 2008 Exhibition in Houston (Texas, USA) last June. It is based on the same concept of strong, reliable and durable wind turbine as its successful predecessor and extent our capacity to meet the rising market expectations.

Four wind turbine assembly plants

ACCIONA Windpower has four wind turbine manufacturing facilities, two in Spain, one in China and one in the USA. Their total annual production capacity is 2,625 MW.

ACCIONA Windpower also has an assembly plant for hubs and other components in Toledo (Spain) and will build a blade production plant in Navarre (Spain) in 2008; its opening is planned for the end of the same year.

Turbines in wind parks in twelve countries

By the end of 2008 ACCIONA Windpower turbines will have been installed in wind parks in twelve countries: Spain, the US, Canada, Mexico, Australia, China, South Korea, Italy, Greece, France, the UK and Poland.

A good part of these projects have been (or will be) carried out by other companies with which ACCIONA Windpower has signed contracts for the supply of turbines. This modality will increase over the next few years.

Working on design since 1997

The technology developed by ACCIONA Windpower is the result of more than fourteen years of knowledge accumulated by one of the most technical teams in the world on the operation and maintenance of wind parks.

The ACCIONA Group’s experience and acumen gained from the management of wind parks containing thousands of wind turbines of different technologies installed in various countries has been the cornerstone to the succesful development of our technology.

Before launching series production of the AW 1500 the company installed three prototypes of a 1300 kW in 2000-2002, followed by twenty units of the same model in a wind park in Navarre.

Work on the series production of the 1.5 MW machine started in 2004. To date, over 2,000 units have been assemblied.

First Wind, Inc.

First Wind, Inc.
85 Wells Ave., Suite 305
Newton, MA 02459
Tel : 617-964-3340
Fax : 617-964-3342


First Wind is an independent North American wind energy company focused exclusively on the development, ownership and operation of wind energy projects. The company was founded in 1995 by executives who had previously developed a successful wind company.Working in partnership with communities, First Wind provides revenue to states and towns, building stronger local economies while protecting the environment for future generations. Wind energy isn’t just our business. It’s their passion.

We build primarily in the Northeast, West and Hawaii, and are already producing nearly 100 MW of energy through three operational wind farms.


The threat of climate change has made the need for clean, renewable energy sources more important than ever. As such, wind power has become a crucial part of the nation’s long-term energy solution. Unlike energy produced from fossil fuels, wind energy does not pollute the air or water and doesn’t produce carbon emissions that contribute to global warming.

First Wind is skilled at developing, owning and operating wind farms that co-exist in harmony with local communities and the environment. As just one example, our Kaheawa wind farm on the island of Maui is located in a pristine natural habitat that’s home to three endangered birds and one endangered bat, along with abundant native plant species. To the inhabitants of the Hawaiian Islands, who continue a centuries-old tradition of environmental stewardship and self-reliance, Kaheawa is a symbol of energy independence as well as of nature’s preservation.

Cleanfield Energy

Cleanfield Energy

1404 Cormorant Road, Unit #6
Ancaster, Ontario

Phone (905) 304-5223
Toll-Free 1 (866) 430-VAWT
Fax (905) 304-5221

Cleanfield Energy™ develops, manufactures, markets and distributes innovative renewable energy products. As organizations, businesses and governments are becoming more aware of environmental concerns, Cleanfield offers economical and green energy solutions to overcome those challenges.

These solutions include the Cleanfield V3.5, a modular vertical-axis wind turbine for residential/agricultural ground mounts, and commercial rooftop or ground mounts. The Cleanfield V3.5 can be mounted on suitable flat rooftops, towers, silos, or poles.

The Cleanfield V3.5 can provide homeowners and businesses with renewable, reliable electricity, emergency backup during blackouts and brownouts, and savings on their utility bills. Those with the vision to try new solutions such as the Cleanfield V3.5 can change an uncertain future. They can free themselves from a dependence on an unsteady electrical grid system and empower themselves with a clean and reliable electricity resource.

Company History

* September 2002 – Cleanfield Energy™ established by cofounders Mihail Stern, Alexander Trica and Tony Verrelli
* November 2002 – University of Timisoara, Romania, commenced Research & Development of Cleanfield’s VAWT in conjunction with our engineering team
* January 2004 – Cleanfield Energy™ commenced testing of the first prototype VAWT
* April 2006 – McMaster University’s Mechanical Engineering Department successfully tested the VAWT at the 9-metre NRC wind tunnel facility in Ottawa, Ontario, Canada
* September 2006 – Ownership changed; owners finalized an RTO with Strike Resources, resulting in a name change to Cleanfield Alternative Energy, which became the parent company of Cleanfield Energy™
* September 2006 – Cleanfield Alternative Energy commenced trading on the TSX Venture Exchange under the symbol AIR (TSXV-AIR)
* June 2006 – Cleanfield Energy™ held a media release for the offical naming of the commercialzed Cleanfield V3.5
* November 2007 – Cleanfield Energy™ releases a letter of intent (LOI) for the sale of 500 turbines.



Main structural components:

  • Turbine – composed of three blades, six arms that connect the blades and the shaft, and a shaft (centre post), which connects the arms and the generator. This component converts kinetic wind energy into mechanical rotational energy.
  • Generator – a low-speed direct-connected permanent magnet synchronous generator that converts the rotational mechanical energy of the turbine rotor into electric energy. It produces electricity from the rotation of the turbine rotor after it converts potential energy in the wind into electricity
  • Power electronics including the inverter, controller and diversion (dump) load – these are the technologies associated with the efficient conversion, control and conditioning of electric power by static means from its available input form into the desired electrical output form. The inverter is extremely innovative, as it is tailor-made and programmed specifically for the VAWT, but can be configured to accept additional energy sources (e.g., solar, micro-hydro), creating a hybrid renewable energy system.

Other characteristics include:

  • Controlled electro-mechanical brake – assembled inside the generator
  • Micro-vibrations of the blades to prevent ice buildup
  • The turbine top has provisions for installing a lightning rod
  • Optional batteries can store or provide energy based on the consumer’s use.

Cleanfield Energy™ has developed a 60kW Universal Inverter (UI). The UI has received positive test results to date at the Atlantic Wind Test Site in Prince Edward Island. It was installed at the Wind Energy Institute of Canada (WEICan) in May 2006 and is undergoing testing and evaluation.

The Universal Inverter allows for the development of an inverter product family for wind turbine applications ranging from 30kW to 250kW. The UI can work on a variety of generators, such as induction, synchronous with permanent magnets or field windings, and DC. The UI works with generators with the nominal stator frequency at 50 Hz or 60 Hz and with low-speed direct shaft generators. The UI can deliver the energy produced to a three-phase or single-phase grid or can work in an autonomous system and create its own three-phase or single-phase grid. In all situations, the grid frequency can be 50 Hz or 60 Hz. This variety of applications involves reconfiguration of building blocks and loading of different firmware.

The hardware uses a classical approach of two power converters, one controlling the generator to turn the turbine to an optimal speed (maximum output power) and the second to transfer the energy produced by the generator to the AC line. In situations in which there is a significant difference between the generator’s voltage and the AC voltage, the cost of the application will dictate the use of a transformer between the AC line and the UI or a DC boost or buck-cell between the two power converters.

Using the UI in a wind turbine application produces energy at lower wind speeds. Once the turbine turns, depending on its performances, the inverter can deliver energy to the grid.

The UI has been developed in accordance with international standards in terms of power quality, safety and environment.

Geothermal and Solar Techs will be available in the near future

Sustainable Energy

Sustainable Energy

Suite 500, Campana Place
609-14th St NW
Calgary, AB T2N 2A1

Tel: +1.403.508.7177
Fax: +1.403.205.2509

Sustainable Energy is a leading developer and manufacturer of power conversion products for the renewable energy industry. Power conversion is a critical element of clean power integration with electricity grids around the world. Highly intelligent power inverters are needed to efficiently convert the raw power generated by solar modules, small wind turbines, fuel cells, micro-turbines, and battery storage into high quality AC power that is useable in homes and businesses.

Sustainable Energy has developed and patented a unique technology that enables more efficient utilization of renewable energy assets. For Solar applications, the high efficiency at low operating voltages allows arrays to be wired in parallel, resulting in higher power output in real world conditions and substantially greater flexibility in designing building integrated PV systems. For wind power applications, our focus on developing rapid control response makes it possible to capture more power from every gust of wind.

In 2006, the Company launched its first commercial product and captured a large portion of the Spanish market with the Sunergy 5 inverter, setting a solid foundation for growth. Sustainable Energy is currently focused on expanding to new markets, and developing additional products to satisfy the needs of a broader customer base.

The Company is headquartered in Calgary, Canada, and was founded in 1999 to develop power conversion products for Fuel Cell applications. The company has since adapted its universal technology platform to higher growth markets, and is committed to bringing efficient, reliable renewable energy to customers around the world.

Sustainable Energy is a publicly traded company with common shares listed on the TSX Venture exchange under the symbol “STG”.



SUNERGY 5 Inverters

For long term reliability, SUNERGYTM inverters use a unique approach to power conversion enabling much simpler power electronics circuits that are inherently more robust. The superior thermal properties of the SUNERGY 5 design also protect the electronics from excessive heat.



No Thermal Rollback
The SUNERGY 5 Inverter sets a new benchmark for reliability and productivity in solar energy systems

The patented approach to power conversion enables the SUNERGY 5 inverter to operate with low voltage inputs which is ideal for parallel solar string layouts.



Current inverter designs demand that identical modules be arranged in long series to match the high voltage requirements of the inverters. These inverters are based on pulse width modulation technology (PWM), which cannot be designed for low voltage inputs without a substantial loss of efficiency.

Sustainable Energy Technologies patented pulse step technology is a breakthrough in the development of low voltage systems

The SUNERGY 5 inverter reduces the operating voltage range for solar arrays from industrial levels to well below utility norms for residential and commercial sites, significantly improving safety


Inverters are available for packaging with most small wind turbines. OEM applications include 1 to 10 kW turbines with the following base configurations:

  • 24 Volt, 1.8 kW inverter
  • 48 Volt, 3.6 kW inverter
  • 10 kW dual inverter package

The fast control response of Sustainable Energy’s inverters is ideal for capturing full power from every gust of wind

For small wind systems, a high percentage of energy must be collected during a low percentage of the time.


  • Every unit increase in wind speed results in an exponential increase in power, making responsive systems critical for optimal power output (P~V3).
  • Sustainable’s wind inverters have been designed to respond rapidly to gusts to provide the highest possible efficiencies.

Sustainable Energy’s inverters can be used for hybrid systems incorporating solar panels, wind turbines, and even battery backup systems

Aerotecture International

Aerotecture International

3035 N. Rockwell
Chicago, IL  60618  USA
Tel: 773.604.4300
Fax: 773.604.4302


Aerotecture International seeks to radically transform the dominant paradigm of energy production and consumption around the globe. Blending the concepts of aerodynamics and architecture, Aeroturbines are wind electric turbines designed to be attached to buildings or integrated into the very form of buildings. With Aeroturbines, buildings and other structures will not only consume electricity, but produce it on-site.


Aeroturbines are wind turbines designed for urban settings.  Invented by University of Illinois industrial design professor, Bil Becker, Aeroturbines are a new development in wind turbine technology.  Aeroturbines can be installed on existing rooftops or built into the architecture of new buildings to provide clean renewable electricity at its site of consumption.  Aeroturbines are uniquely suited to urban environments because they are:

  • Noise and vibration-free
  • Safe for birds
  • Able to utilize multi-directional and gusting winds
  • Self-regulating (no overspeed protection required)
  • Low maintenance
  • Made from low-cost and readily available materials

The structural features of the Aeroturbine allow for its easy integration into new or existing buildings: the modular/stackable cages are additive and can be mounted in a vertical, horizontal, or diagonal orientation.

There are currently two models of Aeroturbines available, the 510V and the 520H.  Both models of the Aeroturbine may be easily integrated with solar photovoltaic systems.

In order to operate efficiently, Aeroturbines must be installed 40 ft. above the ground, above or away from surrounding trees and other obstruction, and in an area with average wind speeds of at least 10 mph.

Aerotecture is currently developing and testing their final prototype of the Aeroturbine.  Once perfected, which may be as soon as mid 2007, Aeroturbines will be available for limited multifamily residential buildings, institutional buildings and commercial buildings.

They currently do not have an extensive dealer network in place. You would need a dealer in your area to take delivery of the Aeroturbine, install it and possibly maintain it properly. We currently have dealers located in Chicago, Illinois; upstate New York; Paterson, New Jersey; and San Francisco, California. Only projects 100 miles of these dealerships will be considered at this time.

Cleanfield Energy

Cleanfield Energy

Head Office
1404 Cormorant Road, Unit #6
Ancaster, Ontario

Phone (905) 304-5223
Toll-Free 1 (866) 430-VAWT
Fax (905) 304-5221


Cleanfield Energy™ is focused on the development of innovative solutions for clean, renewable energy. They strive to capture the abundance of energy offered to us by nature in increasingly more efficient and economical ways. Their technologies offer a reliable alternative to traditional power generation systems, which produce Greenhouse Gases (GHGs), rising levels of pollution, increased global warming, and the ever-increasing prices of traditional energy sources.

Cleanfield Energy achieve this by developing leading-edge green technologies. Technologies like their Cleanfield V3.5 (a 3.5kW modular Vertical-Axis Wind Turbine), and our new 60kW Universal Inverter (UI) which have both achieved breakthrough test results.

Cleanfield Energy™ as a subsidiary of Cleanfield Alternative Energy is listed on the TSX Venture Exchange under the stock symbol AIR (TSXV-AIR) . As a publicly traded company, we promise transparency and accountability in all our business practices. Cleanfield is recognized as a Canadian leader in the small wind technology industry.


Cleanfield V3.5 Specifications

Weight: 181.8kg (400lbs)
Height: 3m (10ft)
Diameter: 2.75m (8ft)
Area Coverage: 7.5m² (24.6ft²)
Electrical Production: Up to 9,000kWh annually
Life span: 20 to 30 years
Primary Materials: Fibreglass and steel
System Warranty: 5 years (extended coverage is also available)

Cleanfield have created a wind energy system that is not only highly efficient and strong enough to withstand gale force winds, but one that is quiet, compact and visually striking. Each system (2.5kW, 3kW and 3.5kW) will have an identical generator, shaft and blades, but will differ in the lengths of the spokes.

Cleanfield’s proprietary technology has several specific competitive strengths over current small-scale wind technology:

  • Advanced emergency braking mechanism
  • Rotates at extremely low wind speeds due to its aerodynamic structure and unique torque design
  • Variable mounting applications, including rooftop, silo or tower. The VAWT’s potential market is significantly greater than traditional small-scale systems, which are built exclusively for tower application
  • Fewer moving components than horizontal-axis turbines. With only 3 components, our wind system is more reliable and virtually maintenance-free.

Magenn Power Inc.

Magenn Power Inc.

Canadian Head Office:
Magenn Power Inc.
105 Schneider Road
(Wind Mill Center)
Kanata, Ontario, Canada
K2K 1Y3

Corporate Mailing Address:
Magenn Power Inc.
18 Monet Court
Ottawa, Ontario, Canada
K1T 4B6

Phone: (613) 482-6558
Fax: (613) 733-3260


Magenn Power is an Ottawa, Ontario Canada based company.

Magenn Power draws on over 30 years of research and development in advance materials and structure. It all began with designing the Magnus Spherical Airship starting in 1978. Fred Ferguson (founder of Magenn Power) patented the Magnus Airship in the 1980s. This unique airship utilized the Magnus effect for the first time in lighter-than-air craft. This Magnus Airship was a large spherical envelope filled with helium to achieve static, buoyant lift. As the sphere rotated during forward motion, Magnus lift was generated proportional to the airspeed flowing over the sphere; the faster the vehicle, the higher the Magnus lift.


The Magenn Power Air Rotor System (MARS) is an innovative lighter-than-air tethered device that rotates about a horizontal axis in response to wind, efficiently generating clean renewable electrical energy at a lower cost than all competing systems. This electrical energy is transferred down the tether to a transformer at a ground station and then transferred to the electricity power grid. Helium (an inert non-reactive lighter than air gas) sustains the Air Rotor which ascends to an altitude for best winds and its rotation also causes the Magnus effect. This provides additional lift, keeps the device stabilized, keeps it positioned within a very controlled and restricted location, and causes it to pull up overhead rather than drift downwind on its tether.

All competing wind generators use bladed two-dimensional disk-like structures and rigid towers. The Magenn Power Air Rotor system is a closed three-dimensional structure (cylinder). It offers high torque, low starting speeds, and superior overall efficiency thanks to its ability to deploy higher. The closed structure allows Magenn Power to produce wind rotors from very small to very large sizes at a fraction of the cost of current wind generators.

The distinct advantages of the Magenn Air Rotor System design are as follows:

  • Magenn Air Rotor System is less expensive per unit of actual electrical energy output than competing wind power systems.
  • Magenn Power Air Rotor System will deliver time-averaged output much closer to its rated capacity than the capacity factor typical with conventional designs. Magenn efficiency will be 40 to 50 percent. This is hugely important, since doubling capacity factor cuts the cost of each delivered watt by half.
  • Wind farms can be placed closer to demand centers, reducing transmission line costs and transmission line loses.
  • Conventional wind generators are only operable in wind speeds between 3 meters/sec and 28 meters/sec. Magenn Air Rotors are operable between 1 meter/sec and in excess of 28 meters/sec.
  • Magenn Air Rotors can be raised to higher altitudes, thus capitalizing on higher winds aloft. Altitudes from 400-ft to 1,000-ft above ground level are possible, without having to build an expensive tower, or use a crane to perform maintenance.
  • Magenn Air Rotors are mobile and can be easily moved to different locations to correspond to changing wind patterns. Mobility is also useful in emergency deployment and disaster relief situations.

These points are mutually inclusive. The advantages above combine to make Magenn the most cost-effective wind electrical generation system.

Pictures below show older conceptual drawings of the Magenn Air Rotor System


Magenn Power Inc. plans to start manufacturing its Magenn Air Rotor System (MARS) in 2009/10 with a 10 kW to 25 kW MARS unit being the first one shipping. (No plans for a 4 kW MARS system at this time)

The reason for the delay is that it is took longer than anticipated raising the funds necessary to finish prototypes and get the product ready for market.

The price for the 10 – 25 kW MARS unit is yet to be determined but it is Magenn’s design goal to deliver product at a cost between the $5 USD to $10 USD dollar per watt range.

The Magenn Air Rotor System (MARS) is a new generation of wind turbines with cost and performance advantages over existing systems.

MARS is a lighter-than-air tethered wind turbine that rotates about a horizontal axis in response to wind, generating electrical energy. This electrical energy is transferred down the tether for consumption, or to a set of batteries or the power grid. Helium sustains the Magenn Air Rotor System, which ascends to an altitude as selected by the operator for the best winds. Its rotation also generates the “Magnus” effect. This aerodynamic phenomenon provides additional lift, keeps the MARS device stabilized, positions MARS within a very controlled and restricted location, and finally, causes MARS to pull up overhead to maximize altitude rather than drift downwind on its tether.

The Advantages of MARS over Conventional Wind Turbines are:

  1. low cost electricity – under 15 cents per kWh
  2. bird and bat friendly
  3. lower noise
  4. wide range of wind speeds – 2 to more than 28 meters/second
  5. higher altitudes – from 200 to 1,000 feet above ground level are possible without expensive towers or cranes
  6. fewer limits on placement location – coast line placement is not necessary
  7. ability to install closer to the power grid
  8. mobile
  9. ideal for off grid applications or where power is not reliable.

Initial MARS Target Markets include:

  1. developing and island nations where infrastructure is limited or non existent
  2. rapid deployment (to include airdrop) to disaster areas for power to emergency and medical equipment, water pumps, and relief efforts (ex. Katrina, Tsunami)
  3. off grid for cottages and remote uses such as cell towers and exploration equipment)
  4. and military applications.
Magenn Power Product Model 10kW
Rated Power 10,000 Watts
Size (Diameter x Length) 30 feet by 60 feet
Shipping Weight Under 3,000 lbs – depending on tether length
Volume of Helium 33,000 cubic feet (approx.)
Tether Height 400 ft standard – up to 1,000 ft optional tether length, in increments of 100 feet
Start-up Wind Speed 2.0 m/sec – 4.48 mph
Cut-in Wind Speed 3.0 m/sec – 6.7 mph
Rated Wind Speed 12.0 m/sec – 26.8 mph
Cut-out Wind Speed 25.0 m/sec – 53.7 mph
Maximum Wind Speed 28.0 m/sec – 62.6 mph
Temperature Range -40ºC /-40ºF to +45ºC/+113ºF
Generators 2 x 5 kW
Output Form Various Options Available: 120 VAC 60Hz – 240 VAC 50 Hz – Regulated DC 12-600V
Warranty Up to 5 Years
Life Cycle 10 – 15 Years
Price (USD) (Estimated) TBD
Availability 2009-10


Windsave Ltd.

Windsave Ltd.

10 LambhillQuadrant
Kinning Park
G41 1SB

Tel: +44(0) 141 420 7400
Fax: +44(0) 141 4207401


Windsave Ltd., established in 2002, is a dynamic Scottish company within the Renewable Energy sector. They are focused on developing micro generation solutions for domestic and commercial properties. The Windsave System is a small wind turbine generator system, which uses low wind speeds to create electricity.

The Windsave System uses our unique technology, which generates electricity supplementary to the national grid supply, reducing reliance on traditional energy sources; benefiting the environment, and helping to lower domestic electricity bills and CO2 emissions.

Many people have the desire to protect the environment; the challenge for Windsave from the beginning has been to turn that desire into action. Their aim is to enable householders, commercial enterprises and local authorities to move from being mere consumers of energy to becoming important contributors to overall energy requirements.

Their technology has been fully and independently tested by the National Engineering Laboratory and is fully accredited by the DTI under the Low Carbon Building Programme (formerly known as The Clear Skies Programme).


Windsave Technology

The Windsave WS1200 is a revolutionary micro-wind turbine system, designed to supplement the supply of electricity drawn from the National Grid.


The WS1200 is a grid-connected system.  Its unique design allows the system to connect directly into the ring main of the property via a fused spur outlet.  This enables less electricity to be drawn from the National Grid when the WS1200 is generating power, which can result in reduced electricity bills from your utility supplier.


The WS1200 is a wall-mounted micro-wind turbine system which uses specifically designed anti-vibration bracketry, and is professionally installed by our Windsave trained, nominated and Government accredited installers.


The WS1200 system is suitable for domestic and commercial premises and can be utilized in both rural and urban settings.

Vestas Wind Systems A/S

Vestas Wind Systems A/S

  Alsvej 21    
  8900 Randers    
  Tel.: +45 97 30 00 00    
  Fax: +45 97 30 00 01

While people all over the world are wondering how future energy resources can keep up with dramatically increasing energy consumption and the resulting explosion in CO2 emissions, Vestas has based their strategy on making wind energy the preferred supplement to conventional energy sources. Not only for their own business reasons, but to a great extent for the sake of the environment and society.

Modern energy

With a 23 per cent market share, Vestas is the world’s leading supplier of modern energy solutions. They have installed more than 35,000 wind turbines in 63 countries on five continents. And they install an average of one wind turbine every four hours, twenty-four hours a day. In fact, their wind turbines generate more than 60 million MWh of energy a year – or enough electricity to supply millions of households. Over the past 25 years they have succeeded in improving the generator effect of our wind turbines by a factor of 100 – and they are still striving to do even better.

That is one of the reasons many say that Vestas is No. 1 in modern energy.

The Will to Win

No. 1 in Modern Energy is much more than a payoff. It is about new ways of thinking. It is about self-perception and the need and ability to create a strong culture that is moving in the right direction. A culture with committed and dynamic people who all have a burning desire to implement their strategy and achieve their goals, and who are prepared to compete on equal terms with the big multinational producers of conventional forms of energy. They have followed The Will to Win strategy since 2005 – and it will take them to the end of 2008.


As the market leader, Vestas has a responsibility to maintain and expand wind power and modern energy as a real supplement to oil and gas.

They know that wind cannot replace oil and gas. Vestas has always said: wind must go hand in hand with oil and gas to ensure the world’s rising energy consumption is also met in the future – without increasing the greenhouse gas emissions. The solution is not to generate energy at the expense of future generations. On the contrary, it is about covering demand without creating more pollution and waste.

The world has a choice, but time is running out.
Many people view nuclear energy and clean coal technology as sustainable alternatives because, like wind power, they do not emit greenhouse gases. But there are downsides to these resources too: Radioactive waste, high production cost and an enormous consumption of pure water – something already in short supply in many parts of the world. Wind power is a clean, stable and renewable source of energy. That is why Vestas would like wind power to be viewed on par with oil and gas. Wind power is the right choice.


As the market leader, Vestas has a big responsibility for initiating a new and sustainable agenda. It calls for quick and accurate decisions twenty-four hours a day, using our hearts and our minds.

At Vestas they always try to predict what might go wrong before it does. If a potential risk is already factored into a decision process, it will be manageable. By thinking in terms of risks, Vestas avoids making mistakes by thinking things through. One in three of the world’s wind turbines – or 35,000 in total – has been installed by Vestas. So that is a responsibility Vestas as a company needs to live up to.

Southwest Windpower

Southwest Windpower

Southwest Windpower
1801 W. Route 66
Flagstaff, AZ 86001 USA
Phone: 928-779-9463
Fax: 928-779-1485


Their utility-connected and battery charging wind turbines power homes, sailboats, recreational vehicles,Skystream 3.7 telecommunications, and more.

Skystream 3.7
1.8 kw
For grid connected homes and businesses
Quiet operation

Air X
Remote homes & cabinsAir X
Water pumping
Recreational vehicles
Battery charging
Science & education

Air X Machine
Recreational BoatingAir X Machine
Offshore beacons or
aquaculture and fishing
Seaside remote cabins
Battery charging
Science & education
projectsAir X Industrial

Air X Industrial
Remote monitoring and
Offshore platforms
Navigational aids

Whisper 100Whisper 100
Remote homes & cabins
Grid-Tie Systems
Water pumping
Battery charging
Science & education
Remote monitoring and
signalingWhisper 200

Whisper 200
Remote homes & cabins
Grid-Tie Systems
Water pumping
Battery charging
Science & education
Remote monitoring and
signalingWhisper 500

Whisper 500
Village Power
Grid-Tie Systems
Water pumping
Battery charging
Science & education
Remote monitoring and

Easy installation without
cranes or large
PE Certified
24 to 80 foot (7.2 to 24 m) towers for Whisper H40 and H80
30 to 70 foot
(9.1 to 21.3 m) towers for
Whisper 175

Mission Statement

To enhance the lifestyle of those in the global community who still do not have access to conventional power through the development and distribution of low cost, reliable, renewable energy technologies for lighting, communication and education.

Company History

March 1987: Southwest Windpower, an Arizona corporation, was established in early 1987 by David Calley and Andy Kruse who saw a need for a small, reliable battery charging wind generator that complements photovoltaics (solar energy or PV) in supplying energy to rural areas of the world.


* Frank Greco / Chief Executive Officer
* Susan Casebeer / Chief Financial Officer
* David Calley / President & Director of Engineering
* Andrew Kruse / V.P. Business Development