Published: 21 Apr 2021 A note from the editor: Those were the days when the legacy power grid used to be unidirectional. Now, they are known by the term “smart grid” as they can trade electricity with the consumers and that has become possible with the advent of advanced metering and sensing technologies, e.g., Industrial IoT, new distributed energy resources, e.g., electric vehicles and ultra-ultra-reliable low latent 5G wireless communication technologies. These smart grids can reduce or remove the carbon footprint against long-haul energy transmissions from national grids instead they meet the electricity demand locally through intelligent demand-supply matching algorithms or games. To deliver this plan, smart grid needs ubiquitous mission critical type connectivity solutions to estimate the energy demand accurately and make some intelligent decisions in real time.