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Foundation piles transfer dynamic turbine loads to lower-lying ground, thereby providing overall support to the foundation and the turbine tower. Geotechnical and soil-structure interaction expertise is a must for designing wind turbine foundation piles. CTE Wind designed piles with lengths varying from 10 to 70 meters.

Foundation piles transfer loads from the wind turbine foundation to lower-lying ground, thereby providing overall support to the structure. These piles carry concentrated loads and are subject to fatigue. As such, careful assessment of geotechnical conditions and proper interpretation of the soil reports’ drilling logs and laboratory data are critical, which is why CTE Wind has senior geotechnical engineers working on wind farm projects worldwide.

CTE Wind’s pile foundation designs include driven, bored and drilled piles, as well as vibro and Franki piles. Once a pile solution has been selected as most appropriate for the site conditions, the number, lengths and diameters of the piles are determined based on the stiffness of piles and the loads to be carried. Piles are designed

Piles for intertidal nearshore foundations

In recent projects, CTE Wind has designed pile foundations with lengths varying from 10 to 70 meters. The latter, 70-meter pile foundations were designed and built in Asia in different nearshore projects on an intertidal sea-zone. CTE Wind also provided pile designs in Belgium, France, Germany, The Netherlands, Brazil, Serbia, Ukraine, Russia, and Finland to name a few.

If you want to learn more about CTE Wind International and CTE Winds PILE FOUNDATIONS please visite OUR-PROJECTS & OUR-NEWS – sections. For more Information about OUR-SERVICES please CONTACT US.

CTE Wind designed the deep foundation and anchor cage for a NRG Patagonia wind turbine in Argentina. The 1.5 MW will help Castelli, a town with 10,000 residents, to grow their sustainable energy production.

Buenos Aires (ARG) – Although Argentina’s wind energy has been on hold for a while, there still is a demand for wind industry specialists such as CTE Wind to extend expertise on wind projects. Our sister company, CTE Wind Ibérica, received an interesting request from the Cooperativa de Electricidad Castelli (CUECCA) for a wind energy project located 185 km from the city of Buenos Aires. The cooperative’s main goal is to grow sustainable energy production in Castelli, a smaller town with about 10,000 residents. In striving to meet its goals, CUECCA moved forward to install a 1.5 MW wind turbine from the local WTG manufacturer NRG Patagonia (NRGP).

CTE Wind has been selected by NRGP for the foundation design. Due to the unique soil conditions, a deep foundation with piles was designed. CTE Wind also contributed the optimized design of the anchor cage, providing substantial savings in steel reinforcement. Enrique MARTINEZ, Commercial Manager of CTE Wind Ibérica said: « We are thrilled to work on this project. Even if it is a small project, we want to find the best possible solution for the customer. »

Design and construction in due time

Recently, an important project milestone has been reached: breaking ground and the beginning of the foundation construction. « Every step has been done in due time. This is also one of the reasons why customers keep coming back to CTE Wind», added MARTINEZ.

The 82m rotor for CUECCA´s NRGP 82 was unloaded not long ago in the Port of Zarate, Argentina. The rotor was manufactured in the US. The 82 is the tallest model so far from NRGP with a hub height of 80 meters and a rotor diameter of 82 meters. Soon 4,000 households of Castelli will enjoy green energy from their own wind turbine.

If you want to learn more about CTE Wind International and CTE Winds SOLUTIONS please visite OUR-PROJECTS & OUR-NEWS – sections. For more Information about OUR-SERVICES please CONTACT US.

Pecos Wind Power has the ability to connect end-users across industries and applications to clean, low cost wind power generated in their own backyard. CTE Wind USA calculated three WTG foundation design solutions. Additionally, CTE Wind provided the geotechnical study and construction support.

If you want to learn more about CTE Wind USA and CTE Winds SOLUTIONS please visite OUR-PROJECTS & OUR-NEWS – sections. For more Information about OUR-SERVICES please CONTACT US.

The SOFT-SPOT® was developed by CTE Wind’s engineering team and is implemented in various countries around the world. This foundation design optimizes the use of resources and helps to save concrete, reinforcement bars and less surface for the foundation. This reduces the time and costs.

La Richardais (FRA) – CTE Wind has already developed and implemented some projects since the launch of the SOFT-SPOT®. Several hundreds of the new foundation design are built around the world : Brazil, France, Lithuania, Indonesia, Mexico, Netherland, Russia, Serbia, Sweden and Thailand to name a few. As a result of his astonishing design the projects allow savings in concrete volume up to 15%, reduction of foundation diameter and total weight of reinforcement bars of 2-5%. In some cases what is even more important than the material costs is the available space : with SOFT-SPOT® you need less surface for the foundation. This reduces the time and excavation costs.

Layer of soft material

CTE WIND Civil Engineering presents to the market a new foundation system for wind turbines, a WTG shallow gravity foundation with SOFT-SPOT®. Through placing a layer of soft material below the central part of the foundation, the slab will effectively act as a ring foundation with respect to the soil-structure interaction. The bearing pressure of the WTG is concentrated at the annular contact surface closer to the edge of the slab. This increases the lever arm of the stabilizing moment. Therefore, the foundation diameter can be reduced in comparison to a standard foundation solution.

Simply the most economical foundation

Thanks to SOFT-SPOT® intelligent design less excavation work is needed. This reduces the machine costs. A major point is that no additional training of site workers is required for the construction of the soft layer. The construction is very easy and the material for the soft layer can be purchased cheaply all over the world. Or as one of CTE Wind’s client pointed out: It is simply the most economical foundation you can choose. (ctewind)

Please contact us if you are interested in knowing more about CTE Wind’s SOFT-SPOT®