Business Green: Plans for Germany’s first Baltic Sea wind farm moved a step forward this week, after energy company EnBW Energie Baden-Württemberg AG inked a deal for 21 turbines from engineering giant Siemens Energy. The company said that work on the 48.3MW Baltic 1 wind farm, which will be located 16km off Germany’s Baltic coast and will cover seven square kilometres, would begin early next year with the aim of bringing the turbines online by the end of 2010. Dr. Hans-Josef Zimmer, …