An energy meter is configured to determine component waveforms that form a measured waveform. The meter inputs the waveform into one or more entries of a data structure, each entry of the one or more entries of the data structure storing a weight value that is determined based at least in part on values of the data signatures representing the plurality of remote devices, each entry being connected to one or more other entries of the data structure. The meter, for each of the one or more entries, generates an output value by performing an arithmetic operation on the waveform stored at that entry, the arithmetic operation comprising a function of the weight value. The meter identifies, from among the data signatures, one or more particular data signatures that are represented in the waveform. The meter determines, based on the particular data signatures, an operational state of another device.

An energy meter is configured to determine component waveforms that form a measured waveform. The meter inputs the waveform into one or more entries of a data structure, each entry of the one or more entries of the data structure storing a weight value that is determined based at least in part on values of the data signatures representing the plurality of remote devices, each entry being connected to one or more other entries of the data structure. The meter, for each of the one or more entries, generates an output value by performing an arithmetic operation on the waveform stored at that entry, the arithmetic operation comprising a function of the weight value. The meter identifies, from among the data signatures, one or more particular data signatures that are represented in the waveform. The meter determines, based on the particular data signatures, an operational state of another device.

Devices and methods for determining and indicating a source of power based on a characteristic of received power are disclosed. According to an aspect, a device includes a power line interface configured to receive power from multiple power lines. The device also includes a comparator module configured to compare one or more characteristics of the received power from the plurality of power lines. The comparator module is also configured to determine whether the received power on the power lines are from the same source based on the comparison. Further, the device includes a user interface configured to indicate whether the received power on the power lines are from the same source based on the determination.

Devices and methods for determining and indicating a source of power based on a characteristic of received power are disclosed. According to an aspect, a device includes a power line interface configured to receive power from multiple power lines. The device also includes a comparator module configured to compare one or more characteristics of the received power from the plurality of power lines. The comparator module is also configured to determine whether the received power on the power lines are from the same source based on the comparison. Further, the device includes a user interface configured to indicate whether the received power on the power lines are from the same source based on the determination.

A building manager includes a communications interface configured to receive information from a smart energy grid. The building manager further includes an integrated control layer configured to receive inputs from and to provide outputs to a plurality of building subsystems. The integrated control layer includes a plurality of control algorithm modules configured to process the inputs and to determine the outputs. The building manager further includes a fault detection and diagnostics layer configured to use statistical analysis on the inputs received from the integrated control layer to detect and diagnose faults. The building manager yet further includes a demand response layer configured to process the information received from the smart energy grid to determine adjustments to the plurality of control algorithms of the integrated control layer.

A building manager includes a communications interface configured to receive information from a smart energy grid. The building manager further includes an integrated control layer configured to receive inputs from and to provide outputs to a plurality of building subsystems. The integrated control layer includes a plurality of control algorithm modules configured to process the inputs and to determine the outputs. The building manager further includes a fault detection and diagnostics layer configured to use statistical analysis on the inputs received from the integrated control layer to detect and diagnose faults. The building manager yet further includes a demand response layer configured to process the information received from the smart energy grid to determine adjustments to the plurality of control algorithms of the integrated control layer.

Methods, systems, and apparatus for receiving one or more power usage measurements for a set of elements, determining a user behavior based at least on an analysis of the one or more power usage measurements of at least one of the set of elements, and based on a determined user behavior, causing the at least one of the set of elements to perform an action that affects a power function of the at least one of the set of elements.

Methods, systems, and apparatus for receiving one or more power usage measurements for a set of elements, determining a user behavior based at least on an analysis of the one or more power usage measurements of at least one of the set of elements, and based on a determined user behavior, causing the at least one of the set of elements to perform an action that affects a power function of the at least one of the set of elements.

Provided is a method for monitoring DC electrical power. The method including determining a rate of change of the DC electrical power, determining whether the rate of change of the DC electrical power is greater than a predetermined threshold, when the rate of change of the DC electrical power is greater than the predetermined threshold, determining whether the rate of change of the DC electrical power is greater than the predetermined threshold for a predetermined period of time, and when the rate of change of the DC electrical power is greater than the predetermined threshold for the predetermined period of time, sending a signal indicating an interruption in the DC electrical power.

Provided is a method for monitoring DC electrical power. The method including determining a rate of change of the DC electrical power, determining whether the rate of change of the DC electrical power is greater than a predetermined threshold, when the rate of change of the DC electrical power is greater than the predetermined threshold, determining whether the rate of change of the DC electrical power is greater than the predetermined threshold for a predetermined period of time, and when the rate of change of the DC electrical power is greater than the predetermined threshold for the predetermined period of time, sending a signal indicating an interruption in the DC electrical power.