An electric vehicle charging system includes a power distributing system configured to receive power from a power control system and selectively direct the power to one of a plurality of power dispensers coupled to the power distribution system.

A method for managing energy for a building includes connecting a power line of the building to a battery of a vehicle via a charger; responsive to occurrence of a power outage, supplying electric energy to the building from the battery and from an energy storage separate from the vehicle; and instructing the vehicle to recharge the battery and return to the building at a predefined time before stored energy of the energy storage falls below a predefined value.

In a method for operating a soil-working machine, in particular a soil compactor, wherein the soil-working machine (10) comprises a plurality of consumers of electrical energy fed from an energy store (58), a load state of the energy store (58) is registered and when the presence of a state of excessive load of the energy store (58) is detected, at least one consumer of electrical energy is deactivated and/or the power consumption of at least one consumer of electrical energy is reduced, and/or consumers of electrical energy are put into operation with a time offset in order to avoid entering a state of excessive load of the energy store (58).

A scheme is provided for dynamically adjusting an amount of power drawn from individual power sources to optimize the power usage without violating power limits. Coarse adjustment is provided through dynamic phase reallocation while a fine adjustment is provided through dynamic current steering. By adding a control loop around current steering techniques in digital voltage regulator controllers, power drawn from multiple input rails is balanced. The apparatus allows users to maximize the power delivered to discrete graphics cards without violating PCIe specifications. This allows maximum performance with minimal bill-of-material (BOM) cost.

A system includes control circuitry configured to determine a maximum electrical load for one or more electrical circuits on one or more electrical panels, determine preference information for allocating the maximum electrical load, automatically set a charge rate for charging the electric vehicle using current from at least one of the one or more electrical circuits based on the maximum electrical load and on the preference information, and cause the electric vehicle to be charged at the charge rate.

A technique enables microgrid switchover using zero cross detection. A flexible load management system includes a virtual critical load panel (vCLP) that utilizes circuit breakers in combination with companion modules configured to sense power provided to one or more loads to identify zero-crossings. When a preconfigured number of consecutive, missed zero-crossings is detected, the companion module is alerted as to potential main power loss and transitions to a virtual critical load (vCL) mode for load adjustment prior to operation under local power. Upon detection of main power loss, the companion module is configured for load activation (or deactivation) via states of one or more vCL bits that configure each load for either ON or OFF state when operating under local power.

A CEMS server manages an amount of demanded electric power of consumer facilities organized into groups. The groups include at least two consumer facilities of which amounts of demanded electric power are correlated with each other. One of the at least two consumer facilities includes an HEMS server that transmits an amount of demanded electric power of the corresponding consumer facility to the CEMS server every first period. The CEMS server stores relationship information indicating a relationship between the amounts of demanded electric power of the at least two consumer facilities. The CEMS server calculates a total amount of demanded electric power of the groups based on the amount of demanded electric power transmitted from the HEMS server and the relationship information and outputs a DR request to the consumer facilities such that the total amount of demanded electric power matches a planned amount of electric power.

An energy storage system according to an embodiment of the present disclosure is connected to a grid power source and a photovoltaic panel, and includes: a battery configured to store electric energy received from the grid power source or the photovoltaic panel in a direct current form, or to output the stored electric energy to one or more loads; a grid relay configured to connect or block a power path connected to the grid power source; and a load relay configured to connect or block a power path connected to the load, wherein the grid relay is turned off when an error occurs in the grid power source, and the load relay is turned off when a state of charge of the battery is lower than an off-reference value.

The invention relates to a power distribution system (1), especially a Power-over-Ethernet system, comprising at least one dominant sensor, which may be located within a powered device (4) like a lighting device, and at least one non-dominant sensor, which may be located within another powered device (4), wherein the power distribution system is adapted such that in a system low power mode the at least one dominant sensor (6) consumes power provided by a power providing unit (3) and the at least one non-dominant sensor (6) does not consume the provided power and that the power distribution system (1) switches from the system low power mode to a system high power mode, if the at least one dominant sensor (6) has sensed an event. Since in the system low power mode the at least one non-dominant sensor does not consume power, the power consumption can be reduced.

An electrification arrangement is provided for simplifying changes to the system, such as adding new electrical loads. The arrangement includes a power supply bus that routes available electric power throughout a facility. Electrical loads may be connected to the power supply bus using smart connectors that provide electrical protection and control of respective electrical loads.