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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

• What is Dominion's assumption for EE/DSM/DR levels? Specifically, is the Company assuming historical performance/savings, increased savings, or decreased savings over time? Regarding DR specifically, is the Company assuming that new large loads have interruptible service or other load-modifying capabilities to shift or reduce usage at peak?
• How are grid-enhancing technologies (GETs) accounted for within the IRP model?