Distribution System Modeling with GridLAB-D


Gridworks is partnering with Stanford National Accelerator Laboratory (SLAC), Hitachi, National Grid, and the Pacific Northwest National Lab (PNNL) leading three CEC EPIC projects to develop distribution system modeling tools to evaluate distributed energy resources.

Modeling software for power systems is undergoing significant development to address an increasingly complex electric grid. This initiative looks to address some of these most pressing needs by enhancing GridLAB-D, an open source distribution simulation and analysis modeling software developed by the U.S. Department of Energy. GridLAB-D is capable of dynamic analysis, estimation of the grid benefits and impacts of DERs, and support of decision making and planning processes on the distribution system.

This initiative looks to enhance GridLAB-D through three discrete projects, developing:

  1. An open-source modeling framework and translation tool;
  2. High-performance computing in open source grid modeling; and
  3. An open-source user interface for GridLAB-D.


Open Framework for Integrated Data Operations (OpenFIDO) is a data interchange, synthesis and analysis framework allowing interoperability between different power systems tools. This capability allows for a more reliable and efficient data exchange.

High-Performance Agent-Based Simulation using GridLAB-D (HiPAS GridLAB-D) is an open-source upgrade to GridLAB-D that speeds up the analysis performance and computational efficiency of the tool, using intelligent, adaptive multi-threading to deploy highly granular parallelization in agent-based simulations.

GridLAB-D Open Workspace (GLOW) looks to develop a high-end user interface for GridLAB-D that is more intuitive and user-friendly for all stakeholders, including non-expert users, to increase access to simulation and modeling results.

GridLAB-D Open Workspace (GLOW) Project Fact Sheet


Please email info@gridworks.org for more details.

Past Meetings

Apr 2

Meeting objective:  This meeting will provide an update on GLOW, HiPAS, and GridLAB-D progress, and demonstrate the Alpha release of OpenFIDO.

Agenda (Tentative) 

  • GLOW Update (Hitachi)
      • Project Plan Overview
      • GLOW Alpha Version with current updated
      • Major Activities
      • Next Steps
  • Updates on HiPAS and new capabilities of OpenFIDO projects (SLAC)
      • HiPAS
          1. Machine-learning powerflow solver initial performance results
          2. Commercialization plan update and activities underway
      • OpenFIDO
          1. Demonstration of Alpha release on 4 example use-cases
            • CYME-GridLAB-D model conversion
            • Integration capacity analysis
            • GridLAB-D model validation
            • NERC load composition synthesis
      • Commercialization plan update and activities underway
  • TAC members' input on ICA methodology validation through application to IOU systems. Specific questions that will be discussed during the meeting and require feedback from the TAC members include:
        • Missing features and use cases, and rank for development priority
        • General usability feedbacks
        • Available test models and data
        • Availability of testing and evaluation engineers
read more
April 2 at 1:00 pm - 3:00 pm PDT

Working Materials

Spring 2021 TAC Meeting – April 2, 2021


GridLAB-D TAC Meeting Introduction – Gridworks


Hipas Updates 

OpenFIDO Updates 



Workshop – GLOW – IEEE-PES-Webinar

Fall 2020 TAC Meeting – Sep 11, 2020

Spring 2020 TAC Meeting – April 2, 2020

Fall 2019 TAC Meeting – September 5, 2019

Spring 2019 TAC Meeting – April 3, 2019

Fall 2018 TAC Meeting – September 6 & 7, 2018

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