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NTS Energie- und Transportsysteme GmbH
Industry Wind Energy
Founded 2006
Key people
Uwe Ahrens
Number of employees
Website http://www.x-wind.de/index.php/en/

NTS Energie- und Transportsysteme GmbH was founded in 2006 in Berlin, Germany by Uwe Ahrens.The company is developing X-Wind technology (spoken: Cross-Wind). This technology combines two technologies - automatically steered kites and generators on a rail system - to produce electricity.[1] A closed loop rail with cable-connected cars work in concert to pull the loop cable. Each railed car is pulled by a four-tethered kited wing; each wing is controlled by an autopilot or kite-steering unit.[2]

In July 2012, NTS GmbH had tested 400 meters linear test track in Freidland, Germany.[3] Closed loop prototype is under construction at Mecklenburg-Vorpommern, Germany.[4]

Existing investors[edit]

Advisory Board[edit]

  • Mario Caroli: General Manager Bankhaus Ellwanger & Geiger
  • Dr. Henner Gladen: MAMA Sustainable Incubation AG
  • Dr. Martin Wienkenhöver: Cabb Chemicals, former board member Lanxess AG and Nordzucker AG [5]


  • February 2009, KIS-Forum Brussels: “Most Successful company”
  • September 2009, EVC, Lisbon: “Best Cleantech Company”
  • November 2009, 2. Münchner Cleantech-Konferenz: Best Presenting Company
  • December 2009, EVC Barcelona: Finalist “Top 25” of the best European Venture Opportunities
  • September 2010, ecolink+, Vienna: Best Presenting Company
  • Nov. 2010 European Venture Contest, Luxembourg: Best Cleantech Company
  • October 2012, Eureka Venture Forum Istanbul, Best presenting Company [6]