Kestrel Wind Turbines subsidiary of Eveready (Pty) Ltd  

Between 600 watts and 3000 watts of power from axial flux wind turbines
Affordable clean electricity, adaptable to your needs
Reliable and convenient with a long life design
Suitable for urban living.

Kestrel Wind Turbines understands that its customers demand high performance and convenience from small wind turbines. Above all things, Kestrel Wind Turbines is committed to quality.

Through the strict adherence to quality standards and continuous development of Kestrel technology Kestrel’s wind turbines are one of the best performing and most efficient wind power systems. By increasing reliability and improving performance Kestrel’s wind technology will become more cost effective than other personal renewable alternatives. Kestrel and its employees are committed to renewable energy generation in order to reduce the use of fossil fuels or non-geothermal energy and will continuously develop Kestrel technology.

Kestrel’s employees are continuously consolidating current wind turbines in the Kestrel range to ensure the highest quality product is distributed. Each wind turbine is sold with Kestrel’s promise to make installation and maintenance procedures as much of a learning and fulfilling experience as possible. Kestrel’s dealers are entrusted with after sale support and are empowered to support Kestrel’s customers in optimising their renewable energy set up.

Here are few tips, where to start with the small wind electric system.

The Kestrel e220

e300i (1kW)

and the e400i (3kW)

Please, click here to describe your project, and to find a renewable energy professional in your area.

Offered products and materials may vary

Evance Iskra R9000

Efficient Wind Power from the Evance Iskra R9000 Wind Power Generator

The Evance Iskra R9000 is probably the most sought after small wind turbine available. Being the "next generation" of small wind turbines, it fully integrates the very best of existing technologies with major new patented innovations. The result is an attractive turbine with uncompromising performance and excellent reliability.

view specs

What is so unique about the Iskra R9000 Wind Power Generator?

The R9000 is the first turbine to be equipped with Reactive PitchTM technology, a unique control concept developed and patented by Evance. Reactive PitchTM, a significant advancement of passive pitch technology, guarantees that the blades will capture exactly the right amount of energy according to the wind speed and generator loading conditions.

Capturing wind power at low wind speeds

At low to moderate wind speeds the Reactive PitchTM mechanisim captures the maximum energy possible from the wind by holding the blades with absolute precision at the maximum efficiency position. The blades are high efficiency aerofoil sections specially optimised to work in tandem with Reative PitchTM.

The Iskra R9000 Wind Power Generator has greater durability and safety

At higher wind speeds, when the energy in the wind exceeds the maximum capacity of the generator, the R9000’s unique Reactive PitchTM mechanism automotically pitches the blades. This regulates energy capture, rotor speed, and the loads experienced by the turbine structure. It will therefore capture the full 5kW power, and the reduction in stresses mean that the R9000 offers greater safety and survivability.  A particular unique feature of Reactive PitchTM is that rotor speed (and thus structural loads) are automatically regulated, whatever the wind or generator conditions, including grid failure.

The R9000 also has a patented high-efficiency generator which converts up to 96% of the energy captured from the wind into useful electricity.  The generator is specifically designed for the R9000, and is integrated into the turbine's rotor. This eliminates the need for a spinning shaft or 'brush' type contacts. Fewer moving parts means greater reliability.

Patented ElectroBrakeTM stops the wind power generator safely

There's no mechanical brake, eliminating the usual issues with such devices. Instead, there's the patented ElectroBrakeTM, an integrated electro-dynamic brake which uses the generator to safely stop the machine whatever the wind speed. It can be operated manually, or activates automatically as a redundant safety feature in the unlikely event of rotor overspeed. 

The combination of Reactive PitchTM and the ElectroBrakeTM mean there is no need for noisy gearboxes, complex speed regulation systems including 'dump loads' or mechanical brakes. Every aspect of the R9000 has been carefully thought out and integrated to assure maximum safety, efficiency and reliability.

Please, click here to describe your project, and to find a renewable energy professional in your area.
 

Proven Wind Turbines

Proven Energy is the world’s leading supplier of small wind turbines. Our high performance turbines are the result of almost thirty years of inspiration, innovation and development.

With over 2000 units installed worldwide, Proven Energy has unrivalled experience and has built up a global reputation for their robust and reliable performance.

Our patented Proven Flexible Blade System enables the wind turbine to generate power in light or strong winds. Our products offer sustainable energy solutions across a wide range of industry sectors, from domestic to offshore.

As the wind gets stronger, the blades twist to reduce their aerodynamic efficiency. This maintains a high output even in the fiercest storms, unlike many turbines which need to stop generating power to protect themselves at high wind speeds. The blades also regulate speed, preventing damage.

Proven Energy has many years’ experience and can help you choose the right system for your needs. We offer a complete service, from site assessment and system design to supply, installation and maintenance.

If you are thinking about reducing your domestic energy bills or providing a multi-site energy solution for your business, Proven Energy can help achieve your renewable energy aspirations. We make sure that your wind turbine choice will work productively for you and deliver all-round environmental benefits.

Proven 2.5kW

Proven 6kW

Proven 15kW