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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

• In the 2026 IRP, will you be modeling data center "flexibility" in how/when data centers use electricity? How much can this flexibility lower the peak load from data centers and lower transmission and generation needs?
• How does Dominion define advanced power flow control (APFC) devices, and how do these relate to other technologies such as Flexible AC Transmission System (FACTS) devices or series compensators?