October 12, 2015 | Dan Brancaccio
The term smart grid has been around for some time now, although the meaning has shifted over the years. In its earliest usage, it was applied to systems that made use of data to perform power quality studies and post event analysis. More recently, the term has come to mean using data to implement a self-healing grid. Self-healing is another term that has multiple definitions from standard protection relays and breakers to distribution level fault location, isolation and service restoration (FLISR). There are multiple definitions of what constitutes a smart grid, but the common denominator is that they all rely on data.