This study examines the role of green, social, sustainable, and sustainability-linked (GSSS) bonds in financing the energy transition in Latin America and the Caribbean (LAC). It combines a descriptive assessment of sectoral bond issuance patterns from 2014 to 2024 with an econometric exercise focusing on the region’s top five issuers. The results indicate that GSSS bonds have contributed to the expansion of renewable energy capacity but have not yet produced a structural shift in the overall energy mix. These findings underscore both the opportunities and limitations of sustainable finance, highlighting the importance of complementary policies, market reforms, and effective governance to maximize its transformative potential.