| 摘要 |
<p>According to one embodiment, a control device communicates with a power measurement device. The control device includes a communication unit, a threshold storage, a calculation unit, and a control unit. The communication unit is configured to receive a usable electric power from the power measurement device. The threshold storage stores a first threshold. The calculation unit is configured to calculate a usable electric energy by integrating the usable electric power. The control unit is configured to change an operation status of the control device based on a comparison result between the usable electric energy and the first threshold.</p> |
