This edition of the Energy and Power Systems TechVision Opportunity Engine (TOE) focuses on innovations and developments in energy storage and battery systems. Apart from innovations pertaining to lithium-ion batteries, other forms of battery systems such as magnesium-based and fluoride-ion-based systems are discussed. In addition, modular batteries for outdoor applications and Li-ion batteries for UPS applications are considered. In addition, developments in renewable energy such as solar and wind are explored. Advanced monitoring solutions that can enhance wind power production and enable effective blade maintenance, and emerging airborne wind power generation concepts are examined.