DECC's latest 'central' updated emissions projections (UEP) scenario, published on 13 October 2011, shows the following new build of gas generation between 2012 and 2020:<Table width="100%" summary="" cellspacing="3" cellpadding="3" border="0"><TR><TD></TD><TD>New build (GW)</TD><TD>Cumulative new build (GW)</TD></TR><TR><TD>2012</TD><TD>0.5</TD><TD>0.5</TD></TR><TR><TD>2013</TD><TD>0.9</TD><TD>1.4</TD></TR><TR><TD>2014</TD><TD>0.9</TD><TD>2.3</TD></TR><TR><TD>2015</TD><TD>0.4</TD><TD>2.7</TD></TR><TR><TD>2016</TD><TD>1.2</TD><TD>3.9</TD></TR><TR><TD>2017</TD><TD>0.4</TD><TD>4.3</TD></TR><TR><TD>2018</TD><TD>0.4</TD><TD>4.7</TD></TR><TR><TD>2019</TD><TD>0.0</TD><TD>4.7</TD></TR><TR><TD>2020</TD><TD>0.0</TD><TD>4.7</TD></TR></Table>This data shows net gas generation capacity (i.e. gross generation capacity less the plant's own use), only covers new build by major power producers, and does not include additional policies to meet the 4th carbon budget (2023-27) as set out in the Carbon plan published on 1 December 2011.The UEP scenario above reflects a gradual introduction of new capacity currently in construction. This reflects uncertainty about the exact completion dates for each generating unit.This scenario is based on a set of assumptions on fossil fuel and carbon prices and costs. They do not reflect a desired or preferred outcome for Government.Cumulative new capacity from major power producers can be found in annex K of DECC's updated emissions projections available at:"http://www.decc.gov.uk/en/content/cms/about/ec_social_res/analytic_projs/en_emis_projs/en_emis_projs.aspx"Please note that annex K shows cumulative capacity from 2011, whereas the cumulative figures above are from 2012.