{"id":88,"date":"2018-09-07T00:00:59","date_gmt":"2018-09-07T00:00:59","guid":{"rendered":"http:\/\/site.ieee.org\/sagroups-scc21\/?page_id=88"},"modified":"2024-02-06T22:31:13","modified_gmt":"2024-02-06T22:31:13","slug":"1547rev","status":"publish","type":"page","link":"https:\/\/sagroups.ieee.org\/scc21\/standards\/1547rev\/","title":{"rendered":"IEEE Std 1547-2018 (Revision of IEEE Std 1547-2003)"},"content":{"rendered":"

IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces<\/h2>\n
\n

Overview<\/h2>\n

This page provides information about IEEE Std 1547\u2122-2018, including resources and guidance for its adoption by interested stakeholders like OEMs, utilities, reliability coordinators, and policy makers.<\/p>\n

General<\/h3>\n

This standard provides interconnection and interoperability technical and test specifications and requirements for distributed energy resources (DERs). 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.<\/p>\n

Scope<\/h3>\n

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.<\/p>\n

Purpose<\/h3>\n

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.<\/p>\n

Leadership Team<\/h3>\n

David J. Narang, Chair<\/em><\/p>\n

Thomas (Tom) Basso, Past Chair<\/em><\/p>\n

John Berdner, Jens C. Boemer, Babak Enayati, Bob Fox, Mark Siira, Vice Chairs <\/em><\/p>\n

Charles K. Vartanian, Secretary<\/em><\/p>\n

Sources to Obtain the Standard<\/h3>\n

In accordance with IEEE protocol and in compliance with the law, IEEE made IEEE 1547 base standard and amendments available in the IEEE Standards Reading Room<\/a>. This “view only” version can be accessed by anyone free-of-charge but does not allow for search, navigation pane, and other conveniency features.<\/p>\n

IEEE Standards Association landing page:\u00a0https:\/\/standards.ieee.org\/findstds\/standard\/1547-2018.html<\/a><\/p>\n

An errata (published in June 2018) is available that corrects a sign error in the frequency-droop (frequency-power) formula in table 23 in section\u00a06.5.2.7.2 (Frequency-droop (frequency-power) operation):\u00a0http:\/\/standards.ieee.org\/findstds\/errata\/1547-2018_errata.pdf<\/a><\/p>\n

Standards Online subscribers can access this standard in IEEE Xplore Digital Library:\u00a0http:\/\/ieeexplore.ieee.org\/Xplore\/login.jsp?url=%2FXplore%2Fhome.jsp<\/a><\/p>\n

A copy of the IEEE Std 1547-2018 may be purchased from the IEEE Standards Store at this link:\u00a0http:\/\/www.techstreet.com\/ieee\/products\/vendor_id\/5915<\/a><\/p>\n

Participants of SCC21-approved tutorials on IEEE Std 1547-2018 and qualifying parties (e.g.,\u00a0government bodies and state regulatory authorities) may obtain a discounted copy of the standard by following these guidelines:\u00a0http:\/\/site.ieee.org\/sagroups-scc21\/standards\/discountedcopies\/<\/a><\/p>\n

Information on the 2020 Amendment to IEEE Std 1547-2018 to provide more flexibility for adoption of abnormal operating performance Category III is available at: https:\/\/site.ieee.org\/sagroups-scc21\/standards\/amendment-to-ieee-std-1547-2018-to-provide-more-flexibility-for-adoption-of-abnormal-operating-performance-category-iii\/<\/a><\/p>\n

Adoption of IEEE Standard 1547\u2122-2018<\/h2>\n

NARUC Resolution on IEEE Standard 1547\u2122-2018<\/h3>\n

On February 12, 2020, the Board of Directors of the National Association of Regulatory Utility Commissioners (NARUC) unanimously approved a resolution offered by Commissioner Schuerger (MN) recommending state commissions adopt and implement the newly revised distributed energy resource interconnection standard (IEEE 1547-2018.) The resolution also unanimously passed two NARUC committees: Electricity and Energy Resources and the Environment.<\/p>\n

The resolution grants flexibility for state commissions recognizing the unique procedures, priorities and needs for each state; while recognizing the best practices identified by technical experts and IEEE 1547-2018 for convening a stakeholder process, utilizing existing research and experience to make evidence-based decisions and aligning the implementation of the standard with the availability of certified equipment.<\/p>\n

A copy of the final resolution is available at: https:\/\/pubs.naruc.org\/pub\/4C436369-155D-0A36-314F-8B6C4DE0F7C7<\/a><\/p>\n

Adoption Status<\/h3>\n

Last updated: January 2024<\/em><\/p>\n

Below map shows the status of adoption of IEEE Std 1547\u2122-2018 across States in the U.S. This and further information about the adoption methods and common performance category assignments are presented in this slide deck<\/a> by courtesy of the Electric Power Research Institute (EPRI)<\/a>. You may also refer to IREC USA\u2019s IEEE 1547\u2122-2018 Adoption Tracker<\/a> for further details. Please use the form below to suggest any updates to this information.<\/p>\n

\"\"<\/a><\/p>\n

Timeline for Rollout of IEEE Std 1547\u2122-2018 Compliant DER<\/h3>\n

Last Update: May 2022<\/em><\/p>\n

UL convened a Task Group (TG) in January 2020 comprised of representatives from National Labs, Electric Utilities, Inverter Manufacturers, General Interest, and\u00a0Nationally Recognized Testing Labs (NRTLs)<\/a> to discuss and revise the existing UL 1741 Ed. 2, an UL certification standard for smart inverters, in order to align it with the new IEEE 1547-2018, IEEE 1547a-2020, and IEEE 1547.1-2020 standards requirements and test procedures for distributed energy resources.<\/p>\n

The UL 1741 Ed. 2 revision was published September 16, 2020, shortly after the publication of IEEE 1547.1-2020 and the IEEE 1547a-2020 Amendment. A year later, a 3rd<\/sup> Edition of UL 1741 was published September 28, 2021 that resolved some consistency issues in Ed. 2 that were identified by inverter manufacturers. The UL 1741 Ed. 3 is considered the definite certification standard for smart inverters in line with the latest IEEE 1547 standards and is available on the UL 1741 website here<\/a>.<\/p>\n

The revisions of UL 1741 Ed. 2 and Ed. 3 relative to Ed. 1 are as follows:<\/p>\n