Around 21GW of coal plant in the UK have ““not opted”” out of the large combustion plant directive, and are therefore able to remain in operation after 2015. These plant will need to comply with the requirements of the industrial emissions directive.Which option they choose under the directive, and therefore whether they will remain in operation past 2023, is a commercial matter for individual operators.Some estimates of future coal generation capacity, and the assumptions underlying these estimates, can be found in the following:DECC's Updated Emissions Projections"http://www.decc.gov.uk/en/content/cms/about/ec_social_res/analytic_projs/en_emis_projs/en_emis_projs.aspx"DECC's Carbon Plan"http://www.decc.gov.uk/en/content/cms/tackling/carbon_plan/carbon_plan.aspx"