Researchers have provided a set of guidelines to help policymakers, designers and operators develop sustainable solutions for energy-storage systems for electricity grids. The guidelines cover a range of energy-storage technologies and grid-integration options.

Monitoring and optimizing a state of an electrical grid are provided. An approach for synchronizing state information and context information, associated with one or more electrical devices on an electrical grid, with time information is provided. The state information is from one or more phasor measurement units (PMUs) associated with the one or more electrical devices, and the context information is from one or more third party servers. The approach further includes notifying one or more subscribing devices of the synchronized state information and the synchronized context information such that the one or more subscribing devices monitors and controls the one or more electrical devices based on the synchronized state information and the synchronized context information.

A system for distributing electric power to an electrical grid. The system includes a DC/AC inverter arranged to convert a DC voltage output from an electric power generator to an AC voltage, a transformer arranged to receive the AC voltage, transform the AC voltage and deliver the transformed AC voltage to the grid, and a connector arranged to selectively connect and disconnect the transformer from the grid. The DC/AC inverter is arranged to control primary winding magnetizing current delivered to the transformer. Further, the connector is arranged to selectively connect and disconnect the grid to and from the transformer on the basis of the controlled magnetizing current.

Commerce department investigation could lead to new tariffs on transformer parts