Volume I (Executive Summary) of the Report on Module 6 (Coordinated Investment Planning) of Phase I of the Eastern Nile Power Trade Program Study, implemented by ENTRO from 2006 – 2008. This Module evaluates the benefits for the Eastern Nile region (Egypt, Ethiopia, and Sudan) of an interconnection of the three power systems at various level of integration (or coordination). The Module is organized in four Volumes: Vol 1 Executive Summary; Vol 2 Generation Investment Planning and Economic Study; Vol 3 Transmission Study; Vol 4 Recommendation for a Coordinated Regional Investment Plan.