A control subsystem configured to control transferring of power, including: an AC/DC power supply; an uninterruptable power supply; a processor; an Ethernet switch; a first communication interface configured to send and/or receive data from a battery management unit that monitors a storage subsystem including one or more batteries; a first transfer interface configured to transmit power to the storage subsystem; a second communication interface configured to send and/or receive data from a power subsystem that includes a power converter, and the power subsystem is configured to be connected to a power line; and a second transfer interface configured to transmit power to the power subsystem, wherein the processor is configured to send signals which control the charging and discharging of at least one battery of the one or more batteries in the storage subsystem.

A distributed energy resource (DER) may store electrical power from an AC circuit and discharge stored electrical power to the AC circuit. A DER may be coupled to the AC circuit via a plug inserted into a receptacle coupled to the AC circuit, and a load device may be plugged into the DER via a receptacle of the DER. The DER may pass AC power from the AC circuit to the load device, and may draw additional power from the AC circuit to charge an energy storage circuit of the DER. The DER may also discharge stored energy into the AC circuit and/or power the load device directly.

Lighting units, systems, and methods are described herein for determining whether occupancy detections are legitimate or not. Methods and systems are further described herein for powering down a network of power over ethernet (PoE) components.

Systems, apparatuses, and methods for realizing a modular inverter system having an orientation of two or more DC busses and an AC bus disposed on the same backplane having peripheral interfaces for engaging one or more swappable modules. Such a modular inverter system includes a backplane having a first side and a second opposite side, the first side supports the DC busses and an AC bus while the second side includes a plurality of peripheral interfaces. One or more power modules may be engaged with the backplane through one of the plurality of peripheral interfaces such that the at least one power module is electrically coupled to a DC bus and electrically coupled to the AC bus. With the DC busses and the AC bus disposed on the opposite side of the peripheral interfaces, the power module is physically isolated from the back side of the backplane and allows for more than one local power generator to be coupled to the system.

Systems, apparatuses, and methods for a modular inverter system having a system controller module that includes several electronic switches that may be controlled to couple various nodes in the system controller module to various circuits coupled to input/output terminals at the modular inverter system to realize various modes of operation. Such modes of operation may include powering a local load (e.g., a house) with locally generated power as well as charging a local battery stack and selling excess power to a utility company that provides a grid tie-in. Such control may be automated based on monitoring various control signals or may be manually invoked by a system operator.

Methods and systems for managing, tracking, and displaying power usage information in connection with colocation datacenters are described. In particular, one or more current transformers determine an amount of current associated with breaker positions of a breaker panel. The current readings may then be used to construct one or more virtual circuits. Access to the current and power readings associated with the virtual circuit is provided to clients via a communication network. Additionally, the current readings may be utilized to track actual current and/or power use in conjunction with one or more client allocated amounts of power.

A electrical distribution system has been developed to provide a remote central control point for individual circuits, and methods have been developed for retrofitting it to existing service panels or installing it into new service panels. This system provides a power circuit monitoring and control system that fits inside standard residential service panels, both new and retrofitted panels. The entire system can be retrofitted into existing breaker panel systems without the need of removing any permanent structure such as a wall. During this retrofit process, the panel cover on the existing distribution panel is first removed after the power to it is disconnected. The old breaker assembly is removed from the panel, and a circuit controller is then installed in the now available space within the panel. A new service panel enclosure with a circuit breaker assembly is installed directly over top of the enclosure.

A PCS comprises a communication unit that communicates with an external server; and a controller that changes from a grid connected state to a self-sustained state when a communication state between the PCS and the external server is equal to or lower than a predetermined threshold.

A power monitoring system to monitor electrical power supply to electrical equipments. The monitor includes an energy saving device to reduce unnecessary power consumption. A control means for enabling control of power consumption of electrical devices in response to the data output of the monitored power consumption.

Systems and methods for coordinating selective activation of at least one power storage device over a predetermined geographic area to supply a microgrid of electrical power, and automatic, selective disconnect any of the at least one power storage device from providing power supply to a microgrid or a wider area grid.