Publications

• Lehnhoff, M., Böhmeke G., Trede, A.
  Aktiv Stall/Passiv Stall, Vergleich und Betriebsergebnisse
  German Wind Energy Conference DEWEK, October 1998, Wilhelmshaven

• Siegfriedsen S., Lehnhoff M., Beneke H., Boldt R., Orlik B.
  Multibrid Technology, a significant step to multi-megawatt wind turbines
  European Wind Energy Conference EWEC, March 1999, Nice

• Lehnhoff, M.
  Neue Windenergieanlagen entwickeln; Stimmen zur Windenergie
  Ministry of Finance and Energy Schleswig-Holstein, August 1999, Kiel

• Lehnhoff, M.
  Windenergietechnologie morgen – Offshore
  Vision 2002, April 2002, Rendsburg

• Siegfriedsen, S., Lehnhoff, M., Prehn, A.
  Offshore wind energy potential outside the European Union
  OWEMES-Conference, April 2003, Naples

• Lehnhoff, M., Siegfriedsen, S., Witte, T.
  Design process for a large offshore wind energy converter, lessons learned
  European Wind Energy Conference EWEC, June 2003, Madrid

• Lehnhoff, M., Schmidt, R.
  Large wind turbine rotor blades
  Global Windpower Conference, March 2004, Chicago

• Lehnhoff, M.
  Multibrid M5000, installation and operation of a 5 MW turbine
  European Wind Energy Conference EWEC, November 2004, London

• Lehnhoff, M.
  M5000 – Erprobung und Betrieb
  Seminar Offshore Wind Energy/ Germanischer Lloyd, June 2005, Hamburg

• Lehnhoff, M.
  Multibrid M5000 – lessons learned
  European Wind Energy Conference EWEC, March 2006, Athens

• Lehnhoff, M.
  Serienanlauf der Offshore-Windenergieanlage Multibrid M5000
  Conference Windstärke07, June 2007, Bremerhaven

• Lehnhoff, M.
  Multibrid – Projekte und Serienfertigung
  Conference Windstärke08, June 2008, Bremerhaven

• Lehnhoff, M.
  Tailoring OEM Equipment designs to maximize reliability
  Offshore Wind Farm O&M Conference, September 2010, London

• Lehnhoff, M.
  Overdue Technological Developments for Offshore Wind Turbines –
  a Client’s Perspective
  Conference WINDFORCE 11, June 2011, Bremerhaven

• Lehnhoff, M.
  Offshore Wind - Antrieb oder Bremse der Energiewende?
  Seminar Etelsen Castle, November 2012, Langwedel

• Lehnhoff, M.
  The O&M concept for the Butendiek offshore wind farm
  Optimising Wind Power O&M Conference, September 2013, Manchester

• Lehnhoff, M.
  The Butendiek Challenge - Structure, Experience and Status
  Conference WINDFORCE 14, June 2014, Bremen
   

• Lehnhoff, M.
  Growth or intelligent optimisation?
  Sustainable steps towards economic turbine technology.
  2. Wind energy technology congress Phoenix Contact, February 2018, Bad Pyrmont
   

• Lehnhoff, M.
  From Cooperation to Localisation
  2018 Taiwan-Europe Wind Industry Summit, March 2018, Taichung