There is provided an analysis server including a first verifying unit that analyzes data acquired from a local power management system composed of an electronic appliance provided with a sensor and a power management apparatus managing power supply to the electronic appliance connected to a power network, by using history information of the local power management system or data acquired from another local power management system with a power usage state similar to that of the local power management system, a second verifying unit that analyzes the data acquired from the local power management system, by using an estimated value calculated by simulation using characteristics information and/or specification information of the electronic appliance, and a control unit that controls the first verifying unit and the second verifying unit.