A system for announcing a predicted remaining amount of energy includes: an obtaining unit configured to obtain traveling state information which contains current vehicle position information; a searching unit configured to search a predicted passage point through which the vehicle is predicted to pass in a future on a basis of the traveling state information; an predicting unit configured to predict a predicted remaining amount of energy, the predicted remaining amount of energy being a predicted amount of traveling energy remaining at the time when the vehicle passes the predicted passage point; and an announcing unit configured to announce information about the predicted remaining amount of energy and the predicted passage point corresponding to the predicted remaining amount of energy to a user.