The Sustainable Energy Technologies Conference 2025 (SET2025, https://set2025.org/) is a renowned multi-disciplinary, peer-reviewed international event that brings together researchers, industry professionals, and policymakers to exchange cutting-edge technical knowledge, present high-quality research, and unveil innovative developments in sustainable energy. This conference fosters collaboration and debate, shaping future priorities for sustainable development and energy security while addressing global challenges such as energy efficiency, renewable integration, and carbon neutrality. Selected papers from SET2025 will be featured in the Asian Journal of Water, Environment, ensuring the dissemination of impactful research to a broader audience and contributing to global progress in sustainable energy technologies and policies.