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Can you review the requirements for a load to be included in the forecasting process? How firm does a commitment need to be?

At the SCC’s directive, the Company uses the PJM Derived Load Forecast in the development of IRP Portfolios. For detailed information about load forecast methodology, please see Appendix 2A from the 2024 VA/NC IRP, available at https://www.dominionenergy.com/about/our-company/irp. In addition, the Load Forecast section of the 2025 IRP Update can be found in Chapter 2.1.

For an overview of the PJM Derived Load Forecast methodology, please see the "Modeling Meeting 1 Slides" document posted here [https://devirp.dominionenergy.com/img/feedback/media/Modeling-Meeting-1-Slides-4.29.26.pdf] and associated recording.

In addition, PJM’s Load Forecast Development Process is described here: https://www.pjm.com/planning/resource-adequacy-planning/load-forecast-dev-process

Other Stakeholder Questions and Answers

• Are transmission costs considered in the portfolio NPV?
• PJM and FERC are both considering policies to require the major new load from data centers to be “bring your own generation,” that the data centers provide themselves off grid. There may be a significant shift of new load off grid provided on site by other sources. How can you predict this in the IRP?