Wind Resource Assessment (WRA) is a pivotal step in the development phase because it determines the bankability of wind projects. The Asian Development Bank's Quantum Leap in Wind Power Development in Asia and the Pacific project has developed WRA guidelines that encapsulate best practices for new and emerging wind energy markets with the goal of accelerating wind energy development. The guidelines address challenges to policy support for WRA, wind measurement, wind data processing, wind flow modeling, and estimation of losses and uncertainty. These are challenges faced in these markets by policy makers, implementation agencies, utilities, developers, and financiers.