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ETA - LOW-WIND EFFICIENT TURBINA BLADES

ETA - high efficiency WEC blades

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

VISION

VISION

Our aim is to improve overall wind farm efficiency through improved blade profiles, materials, technology.

We believe that it is possible to achieve greater efficiency even at low wind speed conditions from any wind turbine while maintaining high efficiency under conditions of greater wind.

At the same time we believe it is possible to reduce the loads on the blade, on the gearbox and on the tower under any wind

condition using special manufacturing techniques and design methods specifically used for advanced composite materials in aero elastic range.

Our products fit the need to achieve more from less windy sites, or to significantly improve the production of old sites with deteriorated blades.

Our mission is to support our customer extract the maximum value from their sites or existing wind farms partnering with them from small development opportunities up to large scale reblading programmes.

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

EFFICIENT

ETA

- HIGH EFFICIENCY WEC-BLADES

ETA develops, manufactures and sells new blades

suitable for the next wind farm generation needs:

Funding fathers are all coming from top management / entrepreneurial experiences in wind, marine and

lower cost (vs lower incentives), lower wind (vs aerospace R&D, Quality assurance, Production

market saturation), lower impact (vs. deteriorated and Design, where the use of software for design social acceptance)

ETA aims to support large reblading programmes developing the right blade for any specific site.

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and simulations and advanced composite materials is essential.


ETA - LOW-WIND EFFICIENT TURBINA BLADES

composite materials is essential where the use of

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

TURBINA

THE NEED TO IMPROVE EFFICIENCY OF WIND TURBINES The European wind landscape is moving towards a less attractive / increasingly difficult phase for developers and operators:

High yield European sites availability saturating

Incentives schemes becoming less remunerating and, at the same time

Governments pushing for grid parity and innovation to bring wind energy to competition

Commercial turbines designed for steady wind / max efficiency in excess of 10 m/s. At low

wind regimes and outside the specific design conditions, very low performances

Social acceptance / NIMBY and logistics (transport) often limit the use of large rotors,

witch instead is the current answer to all the above

In summary, “standard� profiles of turbines are no longer adequate to all purposes.

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

NEW BLADE

NEW PROFILE

HIGHT EFFICENCY

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

KEY

KEY TARGETED TECHNICAL DIFFERENTIATING FACTORS Produce energy at low wind speed with profiles specifically designed for those conditions

Weight ratio due to the use of materials and advanced technology allowing lower speed cut-in, shifting the power curve on the left with significant yield increase

Noise reduction generated by the choice of profiles with minimal noise impact and use of winglets for the specific destruction of vortex separation.

Blade de-forming according to main axis in relation to wind intensity in a self-adaptive mode, designing with “Complex Composite Structures� typical of the Aerospace

Stiffness of the entire blade structure obtained through the use of advanced materials (Carbon, Kevlar and Nomex honeycomb), for a better use of the wind strength to improve the overall efficiency of the system Surface treatment through the use of nano-technology (lower friction / increase efficiency)

Process technology transfers typical of aerospace and marine, based on the use of advanced composite materials

Design concept and product based on modularity to provide the possibility to create multi-part blades coupled together, making easier logistics and transport, minimizing cost and environmental impacts. The use of advanced composite materials will make parts of the junction safer by reducing the weight plus increasing stiffness

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

KEY FACTORS

Low cut-in and high efficiency with low wind High efficiency even in high wind conditions   Loads reductions  

Total Cost Reduction

Product Reliability Product Integration  

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SOLUTION

SPECIFIC KNOW HOW

Innovative custom profiles

Aerospace and aeronautical application on design of new airfoil Wind Tunnel test and wings prototype

Auto-Adaptive profiles and geometries

Advanced design with composite materials Special design model for aero-elastic wind blade deformations

Lightness

Advanced composite manufacturing processes Nano technologies and surface treatments for friction reduction

High rigidity in

Advanced composite manufacturing processes Use of high modulus fiber, resin and core materials

Reduction of inertial masses

Auto - Adaptive profiles and geometries Logistic Cost Reduction

Manufacturing Cost Reduction

Advanced design with composite materials

Aero elastic models developed specifically for wind blades Modular Blade - Special flanges

Standard parts, modular components skilled manpower Availability of production areas with access to waterways

Structural reliability

Chemical Physical Mechanical properties of composites materials Experimental testing of every type of composite materials

Wind farm integration

Ten years experience in wind farm development and constructions

Design Model reliability

Aero elastic tests on scale models in wind tunnel. Sensorization for analysis of deformation of the blades


ETA - LOW-WIND EFFICIENT TURBINA BLADES

TECHNOLOGY

TECHNOLOGY DETAILS Our technology is mature and our fifteen years experience in the advanced composites world,

Even in a challenging reblading programme, the ability to “understand” the site and its characteristics,

with more than a hundred carbon-based products and analyse the performance of the existing manufactured (each of these over thirty meters turbines is relevant to achieve the best result from a long) has an extensive successful track record.

customised blade.

Experience and technologies will be necessary

matured in the aeronautical and advanced naval

to take the performance of the blades to the next

Applying the philosophy, design and technology

industries to wind blades manufacturing allows ETA

level: in low wind conditions a design with advanced to achieve maximum efficiency from wind turbines –

composites allows to save weight and at the same and create a significant advantage for wind-farmers. time increases stiffens and keeps under control the

Methodologies are such that we don’t expect to

efficiency. In the opposite situation, with strong wind

performed in in our laboratory show that structures

aero-elastic deformation to obtain maximum airfoil

conditions, it contributes to reduce more than 20% the critical loads on the turbine.

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increase manufacturing costs. Initial experiences and laminations reach top performances however at floor cost.


ETA - LOW-WIND EFFICIENT TURBINA BLADES

TECHNOLOGY

DETAILS

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

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ETA QUALITY CONTROLS

ETA - LOW-WIND EFFICIENT TURBINA BLADES

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

CNC

DETAILS

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

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ETA - LOW-WIND EFFICIENT TURBINA BLADES

FURTURES

FURTURES Our top competence in composites materials, the professional european team create for design, our opportunity in the production area will develop a special blades for increase the efficency of wind turbine with a consistent reduction of the loads on the gearbox and on the tower.

ETA will create a new interesting opportunity on the europeean market in low wind conditions areas. Beyond our Vision, ETA targets to achieve a leading position in the “next wind wave�, where wind farms will be required to compete on the free electricity markets thus needing to perform according to a world without incentives and with the lowest possible cost per kWh.

Our top competences in composites, design, profiles, our blend of experiences, will enable ETA to always be on the next level and produce the best wind turbine blades.

ETA will be the partner of choice for wind farmers willing to exploit unknown or marginal areas, and with those which will need to improve their site performance.

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Giovanni Manni ETA CEO

E TA S . r. l . - v i a d e l l a d a r s e n a , 3 - 5 6 1 2 1 p i s a - i t a l y - i n f o @ e t a b l a d e s . c o m

Eta Blades  

Company Profile

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