The second International Conference on Sustainable Energy Solutions for a Better Tomorrow (SESBT 2021), which was organized by the School of Mechanical Engineering of Vellore Institute of Technology, Chennai on July 23^rd and 24^th, 2021. For more details about SESBT 2021, please visit www.vitsesbt.com. However, due to the COVID 19 pandemic the conference was held Online. The main objective of SESBT 2021 is to provide a platform for researchers and technocrats from both academic institutions and industries to meet and share cutting-edge developments in the areas of sustainable energy and associated disciplines. This conference also provided an opportunity to exchange research evidence and innovative ideas and also the issues related to sustainable energy. This proceeding will include presentations on the latest research areas such as Carbon Neutrality, Electric & Hybrid Vehicles, Green and Energy Efficient Buildings, Sustainable Computing, Energy Storage, Computational Models for Energy Systems, Advanced Cryotechniques, AI in Energy Systems, Thermal System Optimization and Renewable Energy.

The conference was inaugurated on July 23, 2021 by the renowned scientist, Dr.A.K.Tyagi, Associate Director (Chemistry Group), Bhabha Atomic Research Centre, Mumbai in the presence of Guest of Honour Dr.Santhoji Katare, Technical Leader and General Manager, Ford Motor Company, Chennai. International Chair, Prof.P.V.Aravind, Full Professor and Chair of Energy Conversion, University of Groningen, Netherlands, Prof.P.C.Sabumon, Dean Sponsored Research, VIT Chennai and Conference Chair, Dr.R.Sivakumar, Dean and Professor, School of Mechanical Engineering, VIT Chennai also facilitated the ceremony.

This conference had gathered an excellent group of keynote speakers from across the globe on 19 different topics such as Sustainable batteries: Role of chemistry, Artificial Intelligence in Automotive Product Development, Carbon Neutrality – Making it a reality, Lithium Metal Batteries for Next Generation Energy Storage, Fluidization technologies for CO2 capture using solar energy, Latent storage, Towards minimizing peak energy demand from buildings in India, On the thermal analysis of electric motors using a numerical approach, Photovoltaics, Advanced thermal management and electro-thermal performance of electric motors, Computer Aided Engineering Based Thermal Management of Electric Vehicle Platforms, Hydrogen: Rising Star of Emerging Energy and Transport Systems, How Cool can You Think, Produce and Apply....An Introduction to Cryogenics and its Applications, Multi-objective optimization of heat transfer and pressure drop in the presence of high porosity metal foams for a conjugate heat transfer problem, Recent Advances on Nanomaterials for Energy Storage and Conversion, Hydrogen and future fuels - the role of solid oxide systems, The different Colours of Hydrogen shaping our Planet's future, Thermal Management of Lithium-ion Battery with Heat Pipe for Electric Vehicle and Role of Hydrogen in Achieving net-Zero Emission.