Abstract: Methods and systems for identifying high usage periods are provided herein. In one embodiment, a computer-implemented method comprises obtaining usage data covering a period of time, wherein the usage data comprises a plurality of usage values, each usage value indicating an amount of a commodity consumed over a respective time interval. The method also comprises grouping the usage values into a plurality of groups, wherein each group corresponds to a different time period, and, for each group, computing usage for the group based on the usage values in the group. The method further comprises identifying a group from the plurality of groups having a largest computed usage.