David Narang
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View article: Guide to Developing Energy Services Interfaces
Guide to Developing Energy Services Interfaces Open
This document provides guidance to develop communications interfaces that are highly interoperable and adhere to a set of energy services interface (ESI) principles. It can be applied in the context of information and communications techno…
View article: Energy Services Interface: Requirements Document
Energy Services Interface: Requirements Document Open
This energy services interface (ESI) requirements document represents a process step in the path for creating an ESI specification, which will describe the technical characteristics of an ESI. This document outlines the concepts that need …
View article: Stakeholder Training for IEEE 1547-2018 (Abbreviated Final Technical Report)
Stakeholder Training for IEEE 1547-2018 (Abbreviated Final Technical Report) Open
This project identifies and makes publicly available educational materials to assist stakeholders in adopting the revised IEEE Std 1547-2018, Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated…
View article: USAID Colombia Young Leaders Workforce Training Program Action Plans: Regulatory Road Map for Distributed Energy Resource (DER) Interconnection and Interoperability
USAID Colombia Young Leaders Workforce Training Program Action Plans: Regulatory Road Map for Distributed Energy Resource (DER) Interconnection and Interoperability Open
As part of the U.S. Agency for International Development (USAID)-National Renewable Energy Laboratory (NREL) Young Leaders Workforce Training Program in Colombia, participants from Colombia's Energy and Gas Regulatory Commission (CREG) lev…
View article: GMLC Technical Assistance to States
GMLC Technical Assistance to States Open
This presentation provides an overview of the U.S. Department of Energy's Grid Modernization Laboratory Consortium (GMLC) efforts to provide customized technical support specific to state public utility commissions (PUCs), specifically on …
View article: GMLC Technical Assistance to States: DER Interconnection Workshop #2 [Slides]
GMLC Technical Assistance to States: DER Interconnection Workshop #2 [Slides] Open
NREL hosted this workshops to help state public utility commissions (PUCs) understand the materials and support available to assist in distributed energy resource (DER) interconnection activities. This workshop focused on "Modern DER Capab…
View article: Overview of Functional Technical Requirements for Intentional Islands
Overview of Functional Technical Requirements for Intentional Islands Open
This document provides an overview of intentional islands, otherwise known as microgrids. The topics covered include common types of microgrid configurations, high level summaries of standards that address some aspect of microgrid implemen…
View article: Considerations for Developing a Regulatory Roadmap for Distributed Energy Resource (DER) Integration in Colombia
Considerations for Developing a Regulatory Roadmap for Distributed Energy Resource (DER) Integration in Colombia Open
The USAID-NREL Partnership in Colombia, in conjunction with SURE and USEA, selected four action plan teams from the Young Professionals Leadership Program to receive tailored NREL technical assistance to support action plan implementation.…
View article: Energy Resilient Recovery in Puerto Rico: Hurricane Maria Recovery Support
Energy Resilient Recovery in Puerto Rico: Hurricane Maria Recovery Support Open
This report covers microgrids as a special application of distributed energy resources (DERs) in Puerto Rico. This is one of a series of reports describing the U.S. Department of Energy (DOE) multi-laboratory efforts undertaken. To ensure …
View article: A Primer on the Unintentional Islanding Protection Requirement in IEEE Std 1547-2018
A Primer on the Unintentional Islanding Protection Requirement in IEEE Std 1547-2018 Open
The focus of this document is to provide a summary of the requirements related to unintentional islanding in the IEEE 1547 standard, and to provide the reader with basic knowledge and background information to improve the understanding and…
View article: DOE Laboratory Support for DER and Inverter-Based Resource Integration Standards (ACCEL II) (Final Report)
DOE Laboratory Support for DER and Inverter-Based Resource Integration Standards (ACCEL II) (Final Report) Open
This report documents efforts under a project that followed work completed under Accelerating Systems Integration Standards (ACCEL). In this continuation, the project team provided support for updates to critical standards for interconnect…
View article: A Guide to Updating Interconnection Rules and Incorporating IEEE Standard 1547
A Guide to Updating Interconnection Rules and Incorporating IEEE Standard 1547 Open
The intent of this paper is to support local authorities in adopting the most current technical requirements for interconnecting distributed energy resources (DERs) to the electric distribution system as specified in the Institute of Elect…
View article: Background Information on the Power Quality Requirements in IEEE Std 1547-2018
Background Information on the Power Quality Requirements in IEEE Std 1547-2018 Open
The revised Institute of Electrical and Electronics Engineers (IEEE) 1547-2018, Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces, was published in April 201…
View article: GMLC Survey of Distributed Energy Resource Interconnection and Interoperability Standards
GMLC Survey of Distributed Energy Resource Interconnection and Interoperability Standards Open
This document reports on the Grid Modernization Laboratory Consortium effort to identify gaps in standards for the interconnection and interoperability of distributed energy resources (DERs). The project extended a 3-year period from 2017 …
View article: An Overview of Issues Related to IEEE Std 1547-2018 Requirements Regarding Voltage and Reactive Power Control
An Overview of Issues Related to IEEE Std 1547-2018 Requirements Regarding Voltage and Reactive Power Control Open
The revised Institute of Electrical and Electronics Engineers (IEEE) 1547 Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces (IEEE Std 1547-2018) was publishe…
View article: Informative Background on the Interoperability Requirements in IEEE Std 1547-2018
Informative Background on the Interoperability Requirements in IEEE Std 1547-2018 Open
The intent of this document is to support local authorities governing interconnection requirements in adopting the most current requirements for interconnecting distributed energy resources (DERs) to the electric distribution system, as sp…
View article: Considerations for Distributed Energy Resource Integration in Puerto Rico: DOE Multi-Lab Grid Modeling Support for Puerto Rico; Analytical Support for Interconnection and IEEE Std 1547-2018 National Renewable Energy Laboratory (Task 3.0)
Considerations for Distributed Energy Resource Integration in Puerto Rico: DOE Multi-Lab Grid Modeling Support for Puerto Rico; Analytical Support for Interconnection and IEEE Std 1547-2018 National Renewable Energy Laboratory (Task 3.0) Open
To ensure the sustainable long-term recovery of Puerto Rico's electric power grid from hurricanes María and Irma and to build capacity to manage future potential natural disasters in the most secure and resilient way, the U.S. Department o…
View article: Reduced-Order Parameterized Short-Circuit Current Model of Inverter-Interfaced Distributed Generators
Reduced-Order Parameterized Short-Circuit Current Model of Inverter-Interfaced Distributed Generators Open
The short-circuit response of inverter-interfaced distributed generators (IIDGs) is not adequately represented in many conventional protection studies. This paper presents an in-depth analysis of IIDG behavior during grid faults and propos…
View article: Fault Response of Distributed Energy Resources Considering the Requirements of IEEE 1547-2018
Fault Response of Distributed Energy Resources Considering the Requirements of IEEE 1547-2018 Open
Inverter-based DER responses to faults on the electric power system are different than those of conventional generators and are often poorly understood. Inverter fault responses are largely software-defined, within physics-based constraint…
View article: Fault Response of Distributed Energy Resources Considering the Requirements of IEEE 1547-2018
Fault Response of Distributed Energy Resources Considering the Requirements of IEEE 1547-2018 Open
Inverter-based DER responses to faults on the electric power system are different than those of conventional generators and are often poorly understood. Inverter fault responses are largely software-defined, within physics-based constraint…
View article: Clause-by-Clause Summary of Requirements in IEEE Standard 1547-2018
Clause-by-Clause Summary of Requirements in IEEE Standard 1547-2018 Open
The revised IEEE 1547 standard (IEEE Std 1547-2018) contains eleven chapters (clauses) and eight annexes that comprise 136 pages. Each clause specifies information or requirements that apply to certain aspects important to the interconnect…
View article: Electric Distribution System Planning with DERs - High-level Assessment of Tools and Methods
Electric Distribution System Planning with DERs - High-level Assessment of Tools and Methods Open
This document addresses analytical tools and methods to support electric distribution system planning with distributed energy resources (DERs) and grid modernization, drawing on leading-edge research and examples from around the United Sta…
View article: Interoperability Maturity Model
Interoperability Maturity Model Open
This document presents the relevant concepts for specifying criteria that support a grid modernization strategic vision for interoperability. It focuses on the ways to assess levels of interoperability. The assessment of interoperability n…
View article: Interoperability Maturity Roadmap Methodology, V1.3
Interoperability Maturity Roadmap Methodology, V1.3 Open
The Interoperability Roadmap Methodology document supports the U.S. Department of Energy (DOE) Grid Modernization Laboratory Consortium (GMLC) Interoperability Project’s efforts to advance interoperability as an essential component for the…
View article: Accelerating Systems Integration Standards (ACCEL)
Accelerating Systems Integration Standards (ACCEL) Open
This is the final report for a project to support the development of systems integration standards. The scope of work undertaken by the multi-laboratory team was to facilitate standards development and to help expedite the process in three…
View article: Highlights of IEEE Standard 1547-2018
Highlights of IEEE Standard 1547-2018 Open
This presentation contains highlights of technical requirements for DER integration prescribed in IEEE Standard 1547-2018.
View article: An In-Depth Review of the IEEE P1547 (Revision) Draft Standard - Session 1: Context and Overview
An In-Depth Review of the IEEE P1547 (Revision) Draft Standard - Session 1: Context and Overview Open
This presentation provides an in-depth review of the draft revised IEEE 1547 Standard for Interconnecting Distributed Energy Resources with Electric Power Systems.
View article: Interoperability Strategic Vision
Interoperability Strategic Vision Open
The Interoperability Strategic Vision whitepaper aims to promote a common understanding of the meaning and characteristics of interoperability and to provide a strategy to advance the state of interoperability as applied to integration cha…
View article: Supplemental Information for New York State Standardized Interconnection Requirements
Supplemental Information for New York State Standardized Interconnection Requirements Open
This document is intended to aid in the understanding and application of the New York State Standardized Interconnection Requirements (SIR) and Application Process for New Distributed Generators 5 MW or Less Connected in Parallel with Util…