A brief overview of PV market globally and regionally is presented and how it has disrupted the current network business model. Energy Storage has become a necessity as penetration of PV in the current network increases and created challenging ramping issues as the daily load curves have changed to what is now popularly called “Duck” curves. The value of energy storage in the network is presented, clearly demonstrating that maximum value is realised at end users, commercial and residential. Battery storage is one of the most practical option. Commercial battery technologies are presented, followed by selected case studies.