The twelfth edition of the European Energy Markets Observatory covers the full year 2009 and the winter 2009/2010. Key messages developed in the report include the following: -New energy trends are emerging after the crisis. -The crisis and some new investments resulted in an improved security of supply. -There has been little progress towards the creation of a single European energy market. -EU greenhouse gas emissions reduction objective will be met, but renewables and energy efficiency targets are a challenge. -Generation mix and customers’ behavioral changes are calling for smart grids. -Utilities are focusing on reducing their debts.