HEMS can “display” and “control”

1. “Display” means to “visualize” how much energy is being used, as well as when, where, and for what that energy is being used.

2. “Control” means to collectively control the devices in the house and to automatically optimize the energy usage.

“HEMS” collectively manages, displays and controls home electrical appliances and other energy-consuming products in the house.

Setting the maximum power consumption beforehand enables you to change the temperature setting of the air conditioner by remote control or automatically, or to turn off the power of equipment of lower priority when the total power consumption of the house reaches the preset amount.