This document discusses examples of technical assistance provided by the CTCN in the water sector and for preparing technology roadmaps. It describes a project in Kenya that assessed the feasibility and sustainability of low-cost green water technologies, identified private sector engagement opportunities, developed a public-private partnership business model, and built capacity for piloting projects. It also summarizes a project in South Africa that developed technology roadmaps at the sub-national level through activities like capacity building, feasibility studies, and facilitating South-South cooperation.