The Energy Costing Tool lays out an exhaustive menu of energy technology options and their costs for a country in the context of its own socio-economic, geographic and resources baseline.  It is designed for use by government planners and decision makers as they adapt their national development strategies to meet country-specific targets for the year 2015 based on the MDGs. A crucial part of this process is MDG costing, which quantifies the specific financial and human resources needed, as well as infrastructure required, to meet the MDGs. Costing is part of a larger needs assessment process in which countries define specific interventions and outcome targets consistent with the MDGs. Pilot runs of the tool make a convincing case for the opportunities it provides for integrated resource planning in support of MDGs.