An energy management system, characterized by comprising: a first power meter (71, 72) configured to measure, as first measurement results, electrical power supplied to a residence from a commercial electrical power system; a second power meter configured to measure, as second measurement results, electrical power generated by a distributed electrical power source; a third power meter (74 to 84) configured to measure, as third measurement results, electrical power supplied to an electric device installed in the residence; an acquirer configured to acquire the measurement results comprising the first measurement results, the second measurement results, and the third measurement results, and correspondence information indicating a correspondence relationship between the electric device and a user using the electric device; a selector configured to select an object included in an image displayed on a display device; and a processor configured to display on the display device, in a display configuration designated by the user, an image showing the measurement results acquired by the acquirer, wherein the processor is further configured to, for each selection of the object by the user using the selector, change the image displayed on the display device to a new image according to the selected object, display on the display device, as a start-up image, a group of images, for showing the measurement results of electrical power, to be displayed on the display device, and based on the correspondence information, for each user of a plurality of users, display as a group the third measurement results, and the group of images to be displayed on the display device is a group of images to be magnified and displayed upon selection by the user. a first power meter (71, 72) configured to measure, as first measurement results, electrical power supplied to a residence from a commercial electrical power system; a second power meter configured to measure, as second measurement results, electrical power generated by a distributed electrical power source; a third power meter (74 to 84) configured to measure, as third measurement results, electrical power supplied to an electric device installed in the residence; an acquirer configured to acquire the measurement results comprising the first measurement results, the second measurement results, and the third measurement results, and correspondence information indicating a correspondence relationship between the electric device and a user using the electric device; a selector configured to select an object included in an image displayed on a display device; and a processor configured to display on the display device, in a display configuration designated by the user, an image showing the measurement results acquired by the acquirer, wherein the processor is further configured to, for each selection of the object by the user using the selector, change the image displayed on the display device to a new image according to the selected object, display on the display device, as a start-up image, a group of images, for showing the measurement results of electrical power, to be displayed on the display device, and based on the correspondence information, for each user of a plurality of users, display as a group the third measurement results, and the group of images to be displayed on the display device is a group of images to be magnified and displayed upon selection by the user.