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Photo by Stephen Coffrin. This revision was motivated in part by the growth of solar and other DER on the grid and will help DER developers, utilities, equipment vendors, and others that use the standard ensure a safe and reliable electricity system. IEEE is a set of technical specifications that defines the performance and functionalities of DER connected to the distribution grid—the part of the electric grid that delivers power to homes and buildings.
This technology-neutral standard provides uniform requirements for the safe interconnection of DER to the grid and details the associated testing needed for interconnection. The revision will help utilities better communicate with DER on the grid and enable the secure exchange and use of information between relevant networks, systems, devices, and components. For example, it provides guidance for how smart inverters can support grid reliability.
The updated version also includes new guidance on grid support under abnormal conditions and performance categories for voltage regulation, which grid operators do to maintain voltage and ensure the safe delivery of electricity to customers.
Furthermore, the revision clarifies how DER can support microgrid islanding, which is the ability to disconnect from the main electric grid and provide electricity to a smaller network of buildings during grid disturbances. States must decide whether to adopt IEEE Then, the authorities governing interconnection requirements, such as public utility commissions, municipalities, and cooperative governing boards, will determine whether and how these functions will be used through state standard interconnection requirements and utility design and operations codes.
IEEE was created through a consensus-building process that involved more than technical experts from the distributed generation and energy storage industries, including solar, utilities, equipment vendors, and academia.
The U. Department of Energy Solar Energy Technologies Office funded researchers at the National Renewable Energy Laboratory and Sandia National Laboratories to provide a leadership role in the working group, as well as conduct testing and analysis to inform the process to revise the standard, which was last amended in Once
Revised IEEE 1547 Standard Will Aid Solar Integration
Additionally, several annexes are included in this standard that provide additional material for informative purposes, but are not required to be used in conjunction with this standard. Scope This standard establishes criteria and requirements for interconnection of distributed energy resources with electric power systems EPSs and associated interfaces. The stated technical specifications and requirements are universally needed for interconnection and interoperability of distributed energy resources DERs and will be sufficient for most installations. The specified performance requirements apply at the time of interconnection and as long as the DER remains in service. Purpose This document provides a uniform standard for the interconnection and interoperability of distributed energy resources with electric power systems. It provides requirements relevant to the interconnection and interoperability performance, operation and testing, and, to safety, maintenance and security considerations.