Power system and control method

Abstract

A power system includes a power storage apparatus installed in a facility connected to a power grid, and a controller configured to control the power storage apparatus. The controller judges whether a first condition to be satisfied by a remaining power storage amount of the power storage apparatus is defined as a condition for switching the power storage apparatus from a connected state in which the facility is connected to the power grid to an independent state in which the facility is disconnected from the power grid, and when the power storage apparatus is a specific power storage apparatus with the first condition defined, the controller carries out specific control for controlling the specific power storage apparatus to make the remaining power storage amount of the specific power storage apparatus satisfy the first condition.

Dependencies are inferred from the claim text.