Many authoritative studies over the past several decades state that energy efficiency, aka Negawatts, is cheaper, faster, cleaner, more sustainable and more profitable than building more power plants of any kind. Yet despite efforts at the utility, NGO, and government levels, progress has been extremely slow. Some of the barriers, success stories as well as failures, are discussed with examples from diverse parts of the world. Finally suggestions are made for possible ways to accelerate the Negawatt Revolution, which is surely change the world needs.