The Front Cover
In this issue we have several articles stressing that new development is necessary for growth. Lueder von Bremen (page 6) writes that the central insight is that wind, solar, pan-European transmission and storage form an interdependent system. This system has to be optimised according to the specific costs of each of these technologies. Like other industry leaders he argues for a European Supergrid. The image shows the annual average wind speed (metres/second) in Europe in 2007 at 90 metres height.
Supergrid and Storage Boost Solar and WindBy Lueder von Bremen, ForWind – Center for Wind Energy Research, University of Oldenburg, Germany. Co-authors: Jens Tambke, Jan De Decker and Kurt Rohrig The DANAERO MW ExperimentBy Christian Bak (Senior Scientist) and Helge A. Madsen (Research Specialist), Risø DTU National Laboratory for Sustainable Energy, Denmark
Multibody Simulations and Measurements of Wind Turbine GearboxesBy Ben Marrant, Frederik Vanhollebeke and Joris Peeters, Hansen Transmissions, Belgium Mean Time Between FaultsBy Craig Christenson, Vice President of Engineering, Clipper Windpower, USA
WWEA Page July August 2010