High Quality Content by WIKIPEDIA articles! As of January 2010, the installed capacity of wind power in the United Kingdom was over 4 gigawatts (GW). Wind power is the second largest source of renewable energy in the UK after biomass. The milestone of 3 gigawatts of installed capacity was reached in October 2008, with the opening of the Lynn and Inner Dowsing Wind Farm, off the Lincolnshire coast. The British Wind Energy Association (BWEA) estimates that installed capacity will pass the 5 and 6 GW marks during 2010.