energies Article A Price-Based Demand Response Scheme for Discrete Manufacturing in Smart Grids Zhe Luo, Seung-Ho Hong * and Jong-Beom Kim Department of Electronic Systems Engineering, Hanyang University, 1271 Sa 3-dong, Sangnok-gu, Ansan-Si, Gyeonggi-do 426-791, Korea; luozhe0421@gmail.com...