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Virginia Energy Policy Simulator

The Virginia Energy Policy Simulator (EPS) is a free and open-source computer model created by Energy Innovation LLC and RMI. It is adapted from software originally created by Energy Innovation LLC.

Model Download

The Virginia Energy Policy Simulator may be used on this website through your web browser, or the full version may be downloaded to your computer by clicking the button below. Note that you will need to go through the steps explained on the EPS download page in order to install the required software and make use of the downloadable version of the model.

Download the Virginia Energy Policy Simulator

U.S. State EPS Methodology

The U.S. State EPS Methodology page details our basic modeling assumptions, data sources, and methodology by sector. Additionally, we include information on the business-as-usual (BAU) and nationally determined contribution (NDC) scenario assumptions.

Acknowledgement of Contributors and Reviewers

We would like to acknowledge the following people who helped adapt the Energy Policy Simulator for Virginia. Individuals are listed alphabetically.

  • Kevin Taylor, World Wildlife Fund
  • Lena Lewis, The Nature Conservancy
  • Will Cleveland, Southern Environmental Law Center
  • Virginia Department of Environmental Quality
  • Ashna Aggarwal, RMI
  • Olivia Ashmoore, Energy Innovation LLC
  • Kyle Clark-Sutton, RMI
  • Nathan Iyer, RMI
  • Megan Mahajan, Energy Innovation LLC
  • Robbie Orvis, Energy Innovation LLC

Version History - June 9, 2023

  • Bug fix
    • Prevent rare Vensim error caused by negative ppriority values in ALLOCATE AVAILABLE function - May 19, 2023

  • Bug fix
    • Allow changes in capacity construction subsidies to affect electricity prices - February 6, 2023

  • Update model to version 3.4.3 - Feb 19, 2021

  • Updates data for fuel emissions factors for non-GHG pollutants

3.1.1 - Jan 14, 2021

  • Updated VCEA scenario to include Virginia's joining the Regional Greenhouse Gas Initiative and limits on emissions allowances
  • Updated 1.5 scenario to build on top of updated VCEA scenario and remove several policies
  • Fixed data issue with electricity imports and exports
  • Updated data for direct air capture
  • Updated to new core model version 3.1.1
  • Updated carbon capture and sequestration costs

3.1.0 - Dec 9, 2020

  • Official launch of the Virginia EPS

Software License

The Energy Policy Simulator (EPS) is released under the GNU General Public License version 3 (GPLv3) or any later version and is free and open-source software. Refer to the Software License page for full details.

Image Credits

Atop Old Rag Mountain
Katy Cain, National Park Service
License: Public Domain (U.S. federal government image)
Changes: Image has been cropped and a fade has been applied to the left side.