<p>In comparing the costs of different electricity technologies in the future, DECC typically use the levelised costs of electricty generation. Levelised costs include capital and operating costs over the lifetime of a plant, as well as DECC estimates of projected fuel and carbon costs.</p><br /><p>The most recent levelised cost estimates are available in the DECC Electricity Generation Costs (December 2013) report, available at:</p><br /><p><a href="https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/269888/131217_Electricity_Generation_costs_report_December_2013_Final.pdf" target="_blank">https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/269888/131217_Electricity_Generation_costs_report_December_2013_Final.pdf</a></p><br /><p>We are currently undertaking a comprehensive review of our evidence on levelised costs of electricity generation.</p><br /><p>The above levelised costs however do not take into account all of the wider positive or negative impacts that a plant may impose on the electricity system. So far, DECC’s electricity modelling has considered these wider whole system impacts through a system wide cost-benefit analysis. DECC is currently undertaking a project, which aims to further systematise DECC’s understanding of the whole system impacts of electricity generation technologies.</p>