This open access book presents papers displayed in the 2nd International Conference on Energy and Sustainable Futures (ICESF 2020), co-organised by the University of Hertfordshire and the University Alliance DTA in Energy. The research included in this book covers a wide range of topics in the areas of energy and sustainability including:

• ICT and control of energy;

• conventional energy sources;

• energy governance;

• materials in energy research;

• renewable energy; and

• energy storage.

The book offers a holistic view of topics related to energy and sustainability, making it of interest to experts in the field, from industry and academia.