According to one embodiment, system controls electrical apparatus installed in target area. This system includes image sensor and server. Image sensor senses target area, acquires, from sensed image of area, human information representing state of person in area and environmental information concerning environment of area for each of divided areas obtained by dividing area, and outputs human information and environmental information. Server is connected to image sensor via communication network and executes task-ambient control for electrical apparatus based on human information and environmental information for each of areas output from image sensor.