The electricity industry is undergoing a transformative evolution driven by three overarching trends: decentralization, digitalization, and decarbonization (3Ds). To ensure access to clean, affordable, and reliable energy for all by 2030 - UN sustainable development goal 7 (SDG7) - countries need to repurpose their power market designs to adapt to this transformation and unlock new opportunities. This report provides a fresh global perspective on how to leverage existing designs to effectively mobilize private capital at scale, complementing public investment to achieve SDG7.