The Second International Conference on Electronics and Renewable Systems (ICEARS 2023) is a new annual conference organized by St. Mother Theresa Engineering College, Thoothukudi, India. The theme of the conference is “Smart Electronics and renewable energy systems for sustainable development” and the event will be held on 2-4, March 2023 at Thoothukudi, Tamil Nadu, India. The conference theme is “Smart Electronics and renewable energy systems for sustainable development”. The Conference primarily focuses on the state-of-the-art technologies, methods, strategies, and challenges faced by Smart Electronics systems, Electric Drives, Smart Grids, Renewable Energy resources, micro-grids and the interconnection to modern power systems and also the operation of the smart grid models for a smarter and more user and environment-friendly electronics and energy systems. Focus areas of the conferences are smart electronic converters and control systems, Smart Grid, Renewable energy Resources, Distributed networking and Interconnection, Electric vehicles, Energy storage & charging models, Power Quality, Microgrid & Smart grid, Energy policies & Standards, Power electronic models and other related technologies and applications for further development in the broad area of smart electronics and renewable energy systems.