This volume contains the proceedings of the 1st International Conference on Energy, Environment and Green Technology (ICEEGT 2025). The meeting, organized by the Department of Electrical Engineering, NITTTR, and Kolkata, focuses on the theme "Advancing Sustainable Innovations in Energy, Environment, and Green Technology for a Better Tomorrow". The forum emphasized sustainable energy production, environmental stewardship, and innovative green technologies as pivotal means to mitigate the impacts of climate change. The contributions provide perspectives on energy and environmental sustainability and explore applications in diverse commercial, industrial, and societal sectors. The conference was organized into six tracks: innovative power systems for a sustainable future, green energy technologies and applications, energy storage systems and advanced power electronics, smart and resilient microgrids, environmental challenges and solutions in energy systems, and technological innovations for sustainable urban development. These contributions foster the integration of green and renewable energy sources while addressing global environmental challenges.