The European Parliament has set a target of having 25% of their energy come from renewable energy by 2020. Of that 25%, half is planned to come from wind energy.
Europe is already well on their way to making this happen as well, with 5 countries (Denmark, Spain, Portugal, Ireland and Germany) having more than 5% of their energy provided by wind farms. Currently there exists 80 GW of installed wind capacity in the EU, though only 3.5 GW of that is derived from wind farms built off-shore.