Nenuphar

Nenuphar has a  major wind innovation in the offshore wind energy sector: floating vertical axis wind turbines. Nenuphar’s wind turbine, simpler, robust is economical and has a limited environmental impact. Nenuphar was founded in 2006 with the objective to design a new concept of floating wind turbine fully optimized for deep water application. After having tested in a wind tunnel a floating scale model of a Horizontal Axis Wind Turbine (HAWT), the founders, Charles SMADJA and Frederic SILVERT, concluded that, even though the HAWT architecture was optimized for onshore and shallow water applications, its  application in deeper water would require either very large floaters associated to massive ballasts or very costly “tension-leg” type moorings. The founders therefore decided to design their wind turbine from a blank page to fully optimize their solution to the offshore environment. The result: a multi-megawatt direct-drive Vertical Axis Wind Turbine (VAWT) that offers a cheaper and more reliable alternative to the standard HAWTs.

Nenuphar has developed its own architecture of vertical axis wind turbine as well as a technology of blade manufacturing and has patented a concept of floating wind farm. This innovative solution enables a high availability of the wind farms. Thanks to the vertical axis structure, the cost of the installed MW is competitive with the traditional solutions of offshore bottom-based wind turbines. Based on this unique concept combining existing offshore and wind technologies, Nenuphar develops offers higher profitability wind farms: investment and operation costs are reduced overall by 30% as compared to current solutions, and wind farms are delivered and installed 9 months faster than competitor solutions.

The offshore wind market has a 8% growth per year. In 2030, 120 GW offshore machines will be in operation in the world. 20% of them would be floating wind turbines.

The company which has now 20 employees, began the construction of its first model in Fos-sur-Mer (Bouches-du-Rhône) . It will start to produce electricity in the first quarter of 2013. It will be a machine of 100 meters to 50 meters wide, developing a maximum power of 2 MW. Once in operation, it will be the most powerful vertical wind in the world. In 2014, the machine will be towed at sea about 6 km from the coast. Nenuphar received supports of EDF EN as launch customer and Technip for the design of floats. Nenuphar has already raised 10 million euros from the future investments, and the European Commission. To develop a farm in 2016, the company relies on government support.In this perspective, the company expects to be award from the NER300 fund from the EU.

More info: www.nenuphar-wind.com

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Nenuphar was last modified: June 20th, 2014 by SEC Team

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