Mobile Energy Storage Systems: A Grid-Edge Technology to Enhance Reliability and Resilience By Shadi Chuangpishit, Farid Katiraei, Babu Chalamala, and Damir Novosel Digital Object Identifier 10.1109/MPE.2023.3246899 Date of current version: 15 February 2023 April 2023 I INCREASE IN THE NUMBER AND FREQUENCY OF widespread outages in recent years has been directly linked to drastic climate change necessitating better preparedness for outage mitigation. Severe weather conditions are experienced more frequently and on larger scales, challenging system operation and recovery time after an outage. The impact is more evident and concerning than before, considering the increased dependency on electricity in all aspects of our lives. While enhancing reliability and resilience of the power system has been underway, one challenging aspect is to ensure the transformation is well aligned with use of cleaner and sustainable energy resources. The enhancement also requires a paradigm shift from the traditional ways of managing system outages to advanced methods, such as self-healing technologies (to automatically reconfigure the IEEEpower & energy magazine 97