The global transition toward the sustainable energy is crucial to manage the associated issues of rising energy demands and climate change. The present chapter outlines the role of advanced and innovative solutions for sustainability, focusing on the pivotal contribution from solar energy. There are various stages of advancement of renewable energy materials and the evolving technological innovations in photovoltaics (PV). Thus the crucial analysis for next-generation materials including perovskite solar cells (PSCs), dye-sensitized solar cells (DSSCs), quantum dot solar cells (QDSCs), and organic photovoltaics (OPVs) has been discussed and highlighted in the present work to address the effective integration of solar technologies. The emerging trends among these technologies with the remarkable progress in power conversion efficiencies and interface engineering aiming at minimal device losses have been presented and discussed. The chapter further explores the practical integration of solar energy technology into industrial processes and highlights the potential solutions with the combined use of solar PV and solar thermal energy for advanced green buildings. Moreover, it provides a comprehensive roadmap for policymakers to design effective regulations for the distribution and adoption of advanced solar technologies considering the assessment of lifespan and environmental impacts. The study directly contributes to the achievement of Sustainable Development Goals for affordable and clean energy (SDG 7) and industry, innovation, and infrastructure (SDG 9).