Middelgrunden, an offshore wind farm near Copenhagen.
Denmark has considerably large deposits of oil and natural gas in the North Sea and ranks as number 32 in the world among net exporters of crude oil[137] and was producing 259,980 barrels of crude oil a day in 2009.[138] Denmark is a long-time leader in wind power: In 2015 wind turbines provided 42.1% of the total electricity power consumption.[139] in May 2011 Denmark derived 3.1% of its gross domestic product from renewable (clean) energy technology and energy efficiency, or around €6.5 billion ($9.4 billion).[140] Denmark is connected by electric transmission lines to other European countries. On 6 September 2012, Denmark launched the biggest wind turbine in the world, and will add four more over the next four years.[needs update]Denmark's electricity sector has integrated energy sources such as wind power into the national grid. Denmark now aims to focus on intelligent battery systems (V2G) and plug-in vehicles in the transport sector.[141] The country is a member nation of the International Renewable Energy Agency (IRENA)
