Green hydrogen holds potential in decarbonizing sectors where electrification is challenging. This article delves into the legal and financial considerations necessary for advancing sustainable energy through green hydrogen. It emphasizes the importance of aligning policy and regulatory frameworks with a Paris-aligned green hydrogen economy to provide clarity and a conducive environment for stakeholders. Initiatives such as unlocking funds, reducing financing costs, operational subsidies, sectoral demand creation, and streamlined permitting processes are recommended to propel the green hydrogen value chain. Despite its capital intensity and cost compared to fossil fuels, mechanisms exist to improve the economic viability of green hydrogen projects. By addressing key challenges and seizing opportunities, the transition to a green hydrogen economy in harmony with sustainable development goals can be facilitated.