UAS technologies such as drones are increasingly being used to automate the planning, building, and maintenance of energy facilities around the world. The effectiveness of UAS and digital technologies are transforming energy sector operations to be faster, safer, and more cost-efficient. This working paper introduces UAS and discusses the latest technological developments, current applications, and potential for adoption in ADB’s developing member countries. The Value of Unmanned Aerial Systems for Power Utilities in Developing Asia