Optimization Formulations for Storage Devices with Disjoint Operating Modes

Comments of Mr. Jian Liu and Dr. Rui Bo of Missouri University of Science and Technology, Dr. Lei Wu of Stevens Institute of Technology, Dr. Arezou Ghesmati of the Midcontinent Independent System Operator, and Dr. Alper Atamtürk of the University of California, Berkeley, are gratefully acknowledged. The views expressed herein do not necessarily represent the views of the U.S. Department of Energy, the U.S. Government, or the Midcontinent Independent System Operator.