Exhibit 99 NEWS RELEASE February 22, 2024 Dominion Energy Announces Fourth-Quarter and Full-Year 2023 Earnings, Provides Key Updates on Coastal Virginia Offshore Wind, and Schedules Investor Meeting to Conclude Business Review • Fourth-quarter 2023 GAAP net income of $0.30 per share; operating earnings (non-GAAP) of$0.29 per share • Full year 2023 GAAP net income of $2.29 per share; operating earnings (non-GAAP) of$1.99 per share • Affirms previously communicated business review commitments and priorities ...