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REopt: A Platform for Energy System Integration and Optimization
REopt is a techno-economic decision support model used to optimize energy systems for buildings, campuses, communities, and microgrids. The primary application of the model is for optimizing the integration and operation of behind-the-meter energy assets. This report provides an o...
Anderson, K. et al NLR
Aug 31, 2017
An Overview of Issues Related to IEEE Std 1547-2018 Requirements Regarding Voltage and Reactive Power Control
This overview discusses the voltage and reactive power control provisions of IEEE Std 1547-2018 and highlights implementation challenges for distributed energy resource interconnections. It covers topics such as voltvar control curves, ride through capabilities, coordination with ...
Narang, D. et al NLR
Aug 31, 2021
GridLab-D
GridLAB-D is a new power system simulation tool that provides valuable information to users who design and operate electric power transmission and distribution systems, and to utilities that wish to take advantage of the latest smart grid technology. It incorporates advanced model...
Pacific Northwest National Laboratory
Jan 19, 2023
2 Resources
2 Resources
Synchronization of Lienard-Type Oscillators in Heterogenous Electrical Networks
Motivated by potential applications for power-electronic converters in microgrids, we study the problem of global asymptotic synchronization of Lienard-type nonlinear oscillators in heterogenous LTI electrical networks with series R-L circuits modeling interconnections. By heterog...
Johnson, B. et al University of Minnesota
Dec 31, 2017
A Hybrid Data-Driven and Model-Based Anomaly Detection Scheme for DER Operation
This paper proposes a hybrid data and model-based anomaly detection scheme to secure the operation of distributed energy resources (DERs) in distribution grids. Data-driven autoencoders are set up at the edge device level and they use local DER operational data as inputs. The abno...
Yao, Y. et al NLR
Dec 31, 2021
20 Year Daily Average Modeled Velocity and Discharge for Open water Season at Five Communities on Kuskokwim River, Alaska
This dataset from the University of Alaska Fairbanks provides modeled daily average river velocity and discharge data covering 20 years of open-water seasons for five communities along the Kuskokwim River in Alaska. The data support assessments of hydrokinetic energy potential and...
Brown, E. et al University of Alaska Fairbanks
Feb 02, 2023
Modeled Hourly Tidal Current Velocities, Directions, and Heights from May 1 September 1, 2005 at Two Points Near East Forelands and Tyonek in Cook Inlet, Alaska
Collected by the University of Alaska Fairbanks, this data set contains modeled hourly tidal current velocities, directions, and tidal heights from May through September 2005 at two locations near East Forelands and Tyonek in Cook Inlet, Alaska. The data assist in assessing tidal ...
Bond, B. et al University of Alaska Fairbanks
Feb 08, 2023
Grid Simulator for Testing a Wind Turbine on Offshore Floating Platform
An important aspect of such offshore testing of a wind turbine floating platform is electrical loading of the wind turbine generator. An option of interconnecting the floating wind turbine with the onshore grid via submarine power cable is limited by many factors such as costs and...
Gevorgian, V. NLR
Jan 31, 2012
Test of a 250 kVA Battery-Inverter System Micro-Grid: Cooperative Research and Development Final Report, CRADA Number CRD-11-460
Portland General Electric (PGE) is installing a 5-megawatt (MW) lithium-ion-based battery-inverter system (BIS) in Salem, Oregon, as part of the Pacific Northwest Smart Grid Demonstration Project. NREL will assist PGE in testing a 250-kilovolt-ampere (kVA) portion of the BIS in or...
Kramer, W. et al NLR
Nov 30, 2013
Geothermal Resource Data, Tools, and Maps
NREL's geothermal resource portal aggregates maps, datasets, and analytic tools related to geothermal energy in the United States. It includes resource favorability maps, site screening tools, well data, and geophysical surveys. Users can explore interactive maps showing heat flow...
Team, G. NLR
Jun 12, 2025
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