The presence of scale economies, complementarities, threshold effects and other “externalities”, as well as the heightened uncertainty they inject into any investment decision, limits the role that market forces by themselves can play in realizing the desired investment path (DeLong, 2005). Infrastructure development, in general, and energy supply, in particular, have always been a critical elements in this story (see chap. In this regard, the development strategy was less about detailed planning and more about strategic support and coordination, including a significant role for public investment in triggering growth and crowding in private investment along a new development pathway.