Various implementations described herein are directed to systems, apparatuses and methods for operating stand-alone power systems. The systems may include power generators (e.g., photovoltaic generators and/or wind turbines), storage devices (e.g., batteries and/or flywheels), power modules (e.g., power converters) and loads. The methods may include various methods for monitoring, determining, controlling and/or predicting system power generation, system power storage and system power consumption.

An uninterruptible power system and an operation method thereof are provided. The uninterruptible power system has a plurality of function blocks which form a topology structure of the uninterruptible power system. The uninterruptible power system comprises a sensing circuit and a control circuit. The sensing circuit is configured to sense the function blocks and to generate a sensing data accordingly. The control circuit is configured to determine, according to the sensing data, whether an event occurs in any of the function blocks. When the determination is yes, the control circuit generates an event code corresponding to the event and outputs a control command accordingly. The control command is used to control a display interface to display the event code, and is used to control the display interface to send a prompt message through a function block graphic symbol corresponding to the event code in the displayed topology structure.

Systems and methods for managing power supplied over an electric power grid by an electric utility and/or other market participants to a multiplicity of grid elements and devices for supply and/or load curtailment as supply, each of which having a supply equivalence value associated with its energy consumption and/or reduction in consumption and/or supply, and wherein messaging is managed through a network by a coordinator using IP messaging for communication with the grid elements and devices, with the energy management system (EMS), and with the utilities, market participants, and/or grid operators.

An object of the invention is to reduce an inconvenience in which power consumption from a commercial power supply exceeds a predetermined threshold. To achieve the object, there is provided a power management apparatus (1) including: a load monitoring unit (10) that specifies a timing, at which power consumption of a predetermined load (3) present in a unit power network (100) exceeds a predetermined value, before the timing; and a power storage system control unit (20) that controls the power storage system (2) supplying power to the unit power network (100) to start power supply a predetermined period of time before the timing.

A pressure sewer control system includes a server in communication with one or more pressure sewer installations across a communications network, each of the one or more pressure sewer installations including a controller and one or more sewerage tanks. The server is configured to: determine weather data for a region associated with the pressure sewer installation; estimate power generating capability of a weather-dependent power generator based on the weather data; receive fluid level data indicative of a fluid level in the one or more sewerage tanks from the controller; determine whether a pump action should be instigated by the controller to pump fluid from the sewage tank based on the estimated power generating capability of the weather-dependent power generator and the fluid level data; and transmit a pump control instruction to the controller.

A system includes an uninterruptible power supply (UPS) configured to selectively provide power to a critical load from a grid and an energy storage device, and a grid edge controller configured to communicate with a controller of the UPS and to cause the UPS to operate the energy storage as a distributed energy resource (DER) for the grid while preserving autonomous operation of the UPS to serve the critical load. The grid edge controller may be configured, for example, to maintain a critical reserve in the energy storage device that enables the UPS to maintain the critical load, while allowing the energy storage device to also be used for demand management, frequency regulation and other grid-oriented tasks. The grid edge controller may be configured to control the UPS, for example, via an application programming interface (API) of the controller of the UPS.

A building management system is communicably connected to an energy blockchain network to reduce energy costs of a building. The system includes an energy load balancer to distribute energy from a plurality of energy suppliers to power a load in the building, a processor, and memory storing instructions that causes the processor to: monitor energy pricing data from each of the energy suppliers; calculate a balanced load payload corresponding to an energy demand forecast for the building according to the energy pricing data from the energy suppliers; generate a smart contract corresponding to the balanced load payload in blocks of the energy blockchain network to procure energy from corresponding ones of the energy suppliers; and generate load balancing instructions for the energy load balancer based on the smart contract. The energy load balancer switches between the corresponding ones of the energy suppliers according to the load balancing instructions.

A received power control device (200) that performs control of received energy, which is an amount of power received from a power system per predetermined time at a power receiving point to which a load (302) and an electric storage device (303) are electrically connected, the received power control device (200) performing the control by controlling charge and discharge of at least the electric storage device (303), including: a received energy obtainer (201) that periodically obtains information indicating the received energy; a controller (202) that causes at least the electric storage device (303) to discharge to prevent the received energy from exceeding a first threshold; a remaining capacity obtainer (203) that periodically obtains information indicating a remaining capacity of the electric storage device (303); and a threshold setter (204) that increases the first threshold when an amount of decrease in the remaining capacity per unit time exceeds a second threshold.

Embodiments of the present invention include control methods employed in multiphase distributed energy storage systems that are located behind utility meters typically located at, but not limited to, medium and large commercial and industrial locations. These distributed energy storage systems can operate semi-autonomously, and can be configured to develop energy control solutions for an electric load location based on various data inputs and communicate these energy control solutions to the distributed energy storage systems. In some embodiments, one or more distributed energy storage systems may be used to absorb and/or deliver power to the electric grid in an effort to provide assistance to or correct for power transmission and distribution problems found on the electric grid outside of an electric load location. In some cases, two or more distributed energy storage systems are used to form a controlled and coordinated response to the problems seen on the electric grid.

A wireless device includes a battery that stores and discharges energy to power the wireless device, an event detector that detects one of more energy consumption events occurring in the wireless device, an event counter that accumulates a total number of each of the energy consumption events detected by the event detector, an energy database that stores energy data indicating the pre-determined amount of energy consumption associated with each of the energy consumption events, and a wireless radio configured to transmit a message containing the amount of energy remaining in the battery.