2018 NSF iUCRC Center on High Voltage/Temperature Materials & Structures annual meeting was held successfully on May 14-16that University of Illinois Urbana–Champaign. Participants from NSF, University of Denver, UIUC, UConn and MichTech as well as from leading companies in power and aerospace industries presented project reviews, poster presentations and new project proposal reviews. Members of IMS Electrical Insulation Research Center (Prof. Yang Cao, JoAnne Ronzello, Mattewos Tefferi, Lihua Chen, Tohid Shahsavarian, Jing Xia, Dat Le, Zongze Li and Jindong Huo) presented their cutting-edge collaborative researches with GE, Eversource, Marmon Utilities, USi and G&W on enabling high voltage technologies development for grid modernization, renewable integration, grid hardening and protections.