A Brief Review on Optimal Network Planning Considering Energy Storage Systems and Uncertainty

The topic of optimal planning has always been relevant ever since modern-day electricity markets were established. With the increasing awareness for a stable future, environmentally renewable sources of electricity production have seen a major uprise in latest years. Along with its inherent benefits, this increase in penetration of renewable energy sources also causes some unforeseen issues, such as lower network flexibility since most renewable production is intermittent and unpredictable, and harder generation forecasting for the same reasons. Many authors have researched ways to mitigate these issues, and most point to utilizing energy storage systems. Energy storage and uncertainty are not necessarily new topics, but they are now more prominent than ever and a must in recent optimal planning models regarding electricity networks. This paper aims to highlight some contributions made by literature regarding the topic, focusing on models studying energy storage systems, models that consider uncertainty, and models that consider both.