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Is Dominion planning on doing any load forecast sensitivities, including forecasts with lower levels of demand growth, to represent the uncertainty around data center/large load growth in the coming years and decades? If so, what is Dominion's preliminary approach for modeling load sensitivities for this IRP?

Please refer to the Q&A from IRP Conference 1 (https://devirp.dominionenergy.com/stakeholder-questions-and-answers/will-you-do-sensitivity-tests-for-variations-of-load-forecasts-including-the-data-center-load-forecast). Plan sensitivities, including for the load forecast, were discussed in Chapter 5.3 of the 2025 IRP Update.

We anticipate having similar sensitivities in the 2026 IRP Filing.

Other Stakeholder Questions and Answers

• Does Dominion believe that solar and wind firmed by sufficient batteries cannot be used for blackstart capability? Reference: https://smartgrid.ieee.org/bulletins/april-2021/black-start-using-renewable-energy-resources
• In addition to PJM-driven inputs, is Dominion evaluating grid-enhancing technologies (GETs), advanced conductors, or other advanced transmission technologies to address system conditions such as rebuilds, outages, or congestion events that may not be fully captured in standard planning assumptions?