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National Risk Index
The National Risk Index (NRI) is a composite risk assessment created by the Federal Emergency Management Agency to help communities understand their relative vulnerability to natural hazards. Available through an interactive map, the NRI combines hazard frequency and severity with...
Federal Emergency Management Agency
Dec 15, 2025
Wind Resource Maps and Data
NREL's wind resource maps and data page hosts downloadable maps, shapefiles, and tabular data depicting wind speeds, power density, and turbine class estimates across the United States. The resources include high resolution wind maps at multiple hub heights, offshore wind resource...
NLR
Apr 12, 2025
A Framework for Integrated Distribution System Planning: Presentation for Ameren Illinois workshop
Lisa Schwartz presented at an Ameren Illinois stakeholder workshop on an objectives-based decision framework for investing in local grids. The interactive decision framework on integrated distribution system planning walks through a stakeholder-informed process for grid investment...
Schwartz, L. Lawrence Berkeley National Laboratory
Sep 22, 2024
State Requirements for Electric Distribution System Planning
This report by Lawrence Berkeley National Laboratory reviews regulatory requirements and practices for electric distribution system planning across U.S. states. It synthesizes utility filings, commission regulations, and emerging guidance to highlight how states address capacity n...
Lawrence Berkeley National Laboratory
Feb 28, 2025
A Guide to Updating Interconnection Rules and Incorporating IEEE Std 1547-2018
This NREL resource provides a roadmap for revising interconnection rules and standards to incorporate the provisions of IEEE Std 1547-2018. It discusses key changes in the standard including ride-through, reactive power control, and communications and offers recommendations for up...
Ingram, M. et al NLR
Sep 30, 2021
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
Microgrid Conceptual Design Guidebook (2022)
This 2022 ETIPP guidebook from Sandia National Laboratories provides a structured approach to conceptual microgrid design. It walks planners through defining objectives, identifying critical loads, assessing site resources, and selecting appropriate generation, storage, and contro...
Garcia, B. et al Sandia National Laboratories
Mar 31, 2022
U.S. Biogas-Methane Resources by County
NREL's biomethane resource dataset quantifies the 2014 methane generation potential for each U.S. county from biogas feedstocks, including landfills, livestock manure, wastewater treatment, and industrial, institutional, and commercial waste. Delivered as GIS shapefiles, the datas...
Milbrandt, A. NLR
Jan 13, 2014
Case Study: Applying the Idaho National Laboratory Resilience Framework to St. Mary’s, Alaska
Expands on the DMT workflow with example analyses, model calibration steps, and interpretation of outputs for planning and operations. Summarizes practical lessons on data quality, tool configuration, and stakeholder communication when using DMT for modernization decisions.
Culler, M. et al Idaho National Laboratory
Feb 28, 2022
Multi-Task Reinforcement Learning for Distribution System Voltage Control With Topology Changes
This letter proposes a multi-task deep reinforcement learning (DRL) approach for distribution system voltage regulation considering topology changes via PV smart inverter control. The key idea is to encode the topology as an additional state for the DRL and leverage the multi-task...
Pei, Y. et al University of Conneticut
Apr 30, 2023
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