<P> Wind power delivers a growing fraction of the energy in the United Kingdom and at the beginning of January 2015, wind power in the United Kingdom consisted of 5,958 wind turbines with a total installed capacity of just under 12 gigawatts: 7,950 megawatts of onshore capacity and 4,049 megawatts of offshore capacity . </P> <P> At the end of 2011, there were 230,000 solar power projects in the United Kingdom, with a total installed generating capacity of 750 megawatts (MW). By February 2012 the installed capacity had reached 1,000 MW . Solar power use has increased very rapidly in recent years, albeit from a small base, as a result of reductions in the cost of photovoltaic (PV) panels, and the introduction of a Feed - in tariff (FIT) subsidy in April 2010 . In 2012, the government said that 4 million homes across the UK will be powered by the sun within eight years, representing 22,000 MW of installed solar power capacity by 2020 . </P> <P> Gas from sewage and landfill (biogas) has already been exploited in some areas . In 2004 it provided 129.3 GW h (up 690% from 1990 levels), and was the UK's leading renewable energy source, representing 39.4% of all renewable energy produced (including hydro). The UK has committed to a target of 10.3% of renewable energy in transport to comply with the Renewable Energy Directive of the European Union but has not yet implemented legislation to meet this target . </P> <P> Other biofuels can provide a close - to - carbon - neutral energy source, if locally grown . In South America and Asia, the production of biofuels for export has in some cases resulted in significant ecological damage, including the clearing of rainforest . In 2004 biofuels provided 105.9 GW h, 38% of it wood . This represented an increase of 500% from 1990 . </P>

Which type of power generation is dominant in the united kingdom