One of COP28’s big breakthroughs was a pledge to triple global renewable energy capacity by 2030. But reaching this ambitious goal will require new policies and a significant ramp up in investments. It will also require accelerating deployment across both mature markets such as China, Europe and North America as well as the “Global South,” which have substantially different advantages and challenges. How achievable is this goal for different governments? What are the main obstacles in key markets? What can be done to get the world closer to this “tripling” goal?