By Noritaka Ohashi, Kazuki Terashima, and Makoto Tanaka E ELECTRIC ENERGY SYSTEMS throughout the world are now accommodating a growing number of renewable resources in addition to conventional generation. When responding to new interconnection service requests, minimizing the total cost of the power system, particularly generation and transmission, is important. Also, the maintenance of a large number of existing power system facilities is necessary, including older facilities, to take the best advantage of their capabilities. ©SHUTTERSTOCK.COM/FANDIJKI A Novel Approach to Transmission Bottleneck Management in Japan An N−1 Intertrip Scheme Digital Object Identifier 10.1109/MPE.2020.3043569 Date of current version: 19 February 2021 march/april 2021 1540-7977/21©2021IEEE ieee power & energy magazine 69http://www.SHUTTERSTOCK.COM/FANDIJKI