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Does Dominion Energy invest in grid hardening and other security measures for its generation, transmission, and distribution assets?

Yes, as required by FERC rules and regulations, the Company does employ various cyber and physical security measures to protect its generation, transmission, and distribution assets. Due to the highly sensitive nature of this information, it is not shared publicly. For publicly-available documentation related to this topic, please see our Grid Resiliency Projects page here: https://www.dominionenergy.com/about/delivering-energy/electric-projects/energy-grid-transformation/grid-resiliency-projects

Other Stakeholder Questions and Answers

• Will Dominion provide PLEXOS licenses (free or at a discount) to intervenors to allow them to work directly with IRP models?
• How is Dominion evaluating grid-enhancing technologies (GETs), including advanced transmission technologies (ATTs), in the IRP, particularly in light of HB 862 (passed in 2024)? Will this include a comprehensive assessment, and what tools or modeling approaches are used?