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Utility and Grid Operator Resources for Future Power Systems Webinar Series: Introduction to Microgrids
NREL’s collection highlights research, datasets, and decision‑support tools for transmission and distribution planning, interconnection studies, and operations. The page helps utilities and grid operators evaluate options for accommodating emerging large loads—including data...
Prabakar, K. NLR
Jul 14, 2025
Highlights of IEEE Standard 1547-2018 Implementation Considerations
This resource summarizes key implementation considerations for IEEE Std 1547-2018. It highlights technical requirements such as voltage and frequency ride-through, power quality, communications, interoperability, and testing. The document provides guidance on how utilities, manu...
Narang, D. NLR
Aug 25, 2021
Overview of Functional Technical Requirements for Intentional Islands
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 implementation and interconnection, and a discussi...
Narang, D. et al NLR
Nov 30, 2022
Detailed Summary Maps
DSIRE's Detailed Summary Maps provide high-level overviews of energy policies and incentives across all U.S. states and territories. The maps categorize policies such as renewable portfolio standards, net-metering rules, interconnection standards, and energy efficiency resource st...
NC State University, N.
Dec 31, 2025
Regulating Voltage: Recommendations for Smart Inverters
This report from GridLab provides recommendations for regulators and utilities on leveraging the advanced capabilities of smart inverters to manage voltage on distribution networks with high penetrations of solar and other DERs. It explains how functions such as volt VAR, frequenc...
O’Connell, R. et al GridLab
Sep 11, 2019
Highlights of IEEE Standard 1547-2018
This document provides a concise overview of the 2018 revision of IEEE Std 1547. It outlines the major changes compared to the 2003 edition, including ride-through capabilities, frequency and voltage response, active power controls, and interoperability requirements. The overvie...
Ingram, M. and Narang, D. NLR
Dec 31, 2018
SPIDERS Bi-Directional Charging Station Interconnection Testing
The Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) program is a multi-year Department of Defense-Department of Energy (DOE) collaborative effort that will demonstrate integration of renewables into island-able microgrids using on-site genera...
Simpson, M. NLR
Sep 30, 2013
Revision of IEEE Std 1547: Additional Topics
This TechSurveillance article is the last in a series of four articles that describe the changes proposed for IEEE 1547, provide the rationale for these changes, and describe how they will affect the planning, design, protection, and operation of rural electric cooperative distri...
Walling, R. Walling Energy Systems Consulting, LLC
Mar 31, 2017
Residential Consumer Guide to Solar Energy
Published by the Solar Energy Industries Association (SEIA), this guide helps consumers navigate the process of adopting residential solar power. It explains how solar photovoltaic systems work, outlines factors to consider when selecting equipment and installers, and describes fi...
Solar Energy Industries Association (SEIA)
Jun 30, 2025
A Primer on the Unintentional Islanding Protection Requirement in IEEE Std 1547-2018
This primer provides an accessible explanation of the unintentional islanding protection provisions in IEEE Std 1547-2018. It describes why preventing unintentional islanding is critical, outlines testing and detection methods, and clarifies performance requirements for distribute...
Narang, D. et al NLR
Mar 31, 2022
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