Abstract: According to some embodiments, the present disclosure may relate to a method that includes receiving an energy consumption trace representing energy usage over time that is sampled at a sampling interval. The method may also include parsing the energy consumption trace into one or more segments using change point detection, and selecting one or more of the one or more segments as a representative always-on load segment based on one or more of the following: a lowest average and a minimum duration. The method may also include determining a periodic always-on load based on the representative always-on load segment and the sampling interval. The present disclosure may also relate to associated systems and devices.