Investor Presentaiton

Scaled Pro Forma Clean Generation Footprint Projected Merchant Nuclear Net Generation for 2023 (TWh)1 Vistra previously ranked #4 with 20 TWh prior to the transaction 169 CEG VISTRA 53 202 30 19 18 16 9 33 VISTRA PEG TLN NEE D NRG energy harbor Projected U.S. Clean Net Generation for 2023 (TWh)1 174 1233 Vistra previously ranked #14 with 21 TWh prior to the transaction 884 81 55 54 49 48 41 31 212 30 29 29 255 20 20° 19 18 15 14 14 33 CEG NEE DUK TVA D VISTRA energy harbor ВНЕ SO ETR XEL PEG PCG AEP ENEL RWE TLN AGR BEP AEE EDP Source: Company Filings, DOE, Investor Presentations, NEI, S&P Capital IQ. Note: Excludes select U.S. and state government-related entities. Represents only net generation from owned capacity per S&P Capital IQ. Does not include assets with planned COD in 2023. 1. Net owned generation.; "Clean Net Generation" includes nuclear and other forms of carbon-free generation, excluding generation from battery storage. 2. Peak from 2023-2025. 3. NEE includes assets owned by NEP. 4. Includes net generation of renewable assets that are currently available for sale. 5. Excludes net generation from assets sold to Invenergy, Blackstone Infrastructure and CDPQ joint venture. Includes net generation from capacity acquired from ConEd. Vistra Net Generation Energy Harbor Net Generation Includes 2023 expected Renewables volume, and average expected annual generation for Comanche 6. Vistra Investor Presentation/June 2023 22 22

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