A power consumption evaluation device and a power consumption evaluation method are provided. The power consumption evaluation device includes a power converter, a counter, and a controller. The power converter includes a power switch. The power switch performs a switching operation according to a control signal, so that the power converter supplies power to a corresponding load among at least one load. The counter counts one of a positive pulse and a negative pulse of the control signal during a measurement period to obtain a count value. The controller generates an evaluation result of the corresponding load according to the count value.

A method for estimating load by energy meter including a load estimation model based on a neural network includes steps of: (a) the energy meter generating sampled supply electric power information by sampling information on electric power based on a predetermined sampling rate; (b) the energy meter instructing the load estimation model to output load information; and (c) the energy meter (i) transmitting the load information and information on an amount of the electric energy to a data management server and (ii) instructing the data management server to monitor the information on the amount of the electric energy, information on each sub-electric power for each of the loads, and information on each sub-amount of the electric energy for each of the loads.

The disclosure is related to a method for estimating an operation state of each individual load in a target electric power consumer. The method may include obtaining an operation state table of a target electric power consumer upon generation of a predetermined event, collecting predetermined electricity parameter values in response to a request to estimate an operation state of each individual load, and estimating operation states of individual loads in the target electric power consumer based on the obtained operation state table and the collected predetermined electricity parameter values.

Systems and methods for distributing load of an energy plant are disclosed herein. A target load of at least a first device and a second device of the energy plant is obtained. A first power consumption of the first device and the second device predicted to result from operating the first device and the second device according to a first combination of set points to satisfy the target load is predicted. A second power consumption of the first device and the second device predicted to result from operating the first device and the second device according to a second combination of set points to satisfy the target load is predicted. The first power consumption and the second power consumption are compared, and a combination of set points rendering lower power consumption is selected to operate the energy plant.

A system for providing information about electrical devices in a residence includes a power measurement device, an electrical device identification component, and a notification component. The power measurement device measures characteristics of electrical power in one or more electrical power lines in the residence. Based on the measured electrical characteristics, the electrical device identification component determines electrical signatures specific electrical devices at the residence that are receiving electrical power through the electrical power lines, associates the electrical devices with a device type, and groups the electrical devices into zones of the residence. Based on power consumption by the specific electrical devices, the notification component determines events or conditions associated with specific electrical devices (for example abnormal usage, device failure, excess power consumption). Notifications relating to at least one of the events or conditions associated with the specific electrical devices are provided to a person associated with the residence (for example, homeowner or other resident).

A method, apparatus and computer program are provided for allocating power amount a plurality of computing devices. The method includes determining a current power capping amount for each of a plurality of computing devices and obtaining a current power usage of each computing device. The method further includes determining, for each computing device, an updated power capping amount based on whether or not the current power usage of the computing device has reached the current power capping amount of the computing device during a current period of time. The updated power capping amount is allocated to the respective computing devices, and a power supply is caused to deliver power to each computing device in an amount up to the updated power capping amount that has been allocated to the respective computing device.

A system for providing information about electrical devices in a residence includes a power measurement device, an electrical device identification component, and a notification component. The power measurement device measures characteristics of electrical power in one or more electrical power lines in the residence. Based on the measured electrical characteristics, the electrical device identification component determines electrical signatures specific electrical devices at the residence that are receiving electrical power through the electrical power lines, associates the electrical devices with a device type, and groups the electrical devices into zones of the residence. Based on power consumption by the specific electrical devices, the notification component determines events or conditions associated with specific electrical devices (for example abnormal usage, device failure, excess power consumption). Notifications relating to at least one of the events or conditions associated with the specific electrical devices are provided to a person associated with the residence (for example, homeowner or other resident).

A method for determining power consumption levels of an appliance includes reducing a power consumption of the appliance to a minimum value; measuring a first voltage value at an internal terminal of the appliance; increasing the power consumption of the appliance to a factory default value; measuring a second voltage value at the internal terminal of the appliance; computing a supply wire resistance based on the measured first and second voltage values; and determining a maximum allowable power consumption value of the appliance based on the computed supply wire resistance.

A utility consumption information system may generate a variety of data that is based on and/or derived from utility consumption or usage associated with a site. In some examples, the utility consumption information system may generate data to be provided or displayed by applying a load profile to utility consumption or usage data obtained at the site over a period of time. The utility consumption information system may generate the load profile based on sample interval data obtained from one or more devices (e.g., utility metering devices) sharing characteristics with the site at which the utility consumption or usage data was obtained.

A method for determining power consumption levels of an appliance includes reducing a power consumption of the appliance to a minimum value; measuring a first voltage value at an internal terminal of the appliance; increasing the power consumption of the appliance to a factory default value; measuring a second voltage value at the internal terminal of the appliance; computing a supply wire resistance based on the measured first and second voltage values; and determining a maximum allowable power consumption value of the appliance based on the computed supply wire resistance.