<p>In 2012, 12.1 TWh of electricity was generated from onshore wind and 7.5 TWh from offshore wind, see DUKES 6.4, available at:</p><p>https://www.gov.uk/government/publications/renewable-sources-of-energy-chapter-6-digest-of-united-kingdom-energy-statistics-dukes</p><p>The proportion of electricity generation delivered by any technology in the future is uncertain as it depends on a range of factors—for example, future technology costs. The most recent illustrative scenarios for contributions from different electricity generation technologies between now and 2030 were published in July 2013 as part of the consultation on the draft Electricity Market Reform Delivery Plan. The scenarios include low and high estimates of 23 TWh to 28 TWh<Sup>1</Sup> of onshore wind in 2020 and 24 TWh to 52TWh<Sup>2</Sup> of offshore wind in 2020. These figures are calculatedon a GB (not UK) basis; see table 6.1.4 availableat:</p><p>https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/223655/emr_consultation_annex_e.pdf</p><p>This analysis will be updated as part of the final EMR Delivery Plan.<Sup>1</Sup>Based on high and low technology costsrespectively.<Sup>2</Sup>Based on '32% renewables in 2020' scenario and 'high offshore' scenariorespectively.</p>