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Exhibit 99.1 IRVING , Texas - VISTRA Aug. 5 , 2021 Vistra ( NYSE : VST ) Financial and Operating Highlights NEWS RELEASE Vistra Reports Second Quarter 2021 Financial and Operating Results Delivered second quarter 2021 Net Income of $ 35 million and Net Income from Ongoing Operations¹ of $ 49 million . Second quarter 2021 Ongoing Operations Adjusted EBITDA¹ was $ 909 million , which excludes the impacts from Winter Storm Uri1,2 ( Uri ) and was in - line with management expectations for the period . Including these Uri impacts , Vistra's second quarter 2021 Ongoing Operations Adjusted EBITDA¹ was $ 825 million . Reaffirmed 2021 Ongoing Operations Adjusted EBITDA¹ and Ongoing Operations Adjusted Free Cash Flow before Growth1 ( FCFbG ) guidance ranges of $ 1,475 to $ 1,875 million and $ 200 to $ 600 million , respectively . Paid a quarterly dividend of $ 0.15 per share , or $ 0.60 per share on an annualized basis , on June 30 , 2021 , to shareholders of record as of June 16 , 2020 . Issued $ 1,250 million 4.375 % Senior Unsecured Notes due May 1 , 2029 , with the proceeds used to repay all outstanding principal amounts of the $ 1,250 million 364 - day Term Loan A issued in March and April 2021 following Uri . Implementing post - Uri activities including investing nearly $ 50 million in 2021 for enhanced weatherization of power generating units in the ERCOT market ; adding additional dual fuel capabilities and gas storage ; participating in processes with the PUCT and ERCOT to implement recent Texas legislation related to Uri , particularly registration and weatherization of critical gas and electric infrastructure ; engaging in processes to evaluate potential market reforms ; and implementing new risk management policies to further protect Vistra's future earnings and cash flows . ESG Highlights • Completed phase II of the Moss Landing Energy Storage Facility , increasing the capacity of the lithium - ion battery storage system to 400 MW / 1,600 MWh . The system is located on - site at Vistra's Moss Landing Power Plant in Monterey County , California , and is the largest of its kind operational in the world . Published 2020 Sustainability Report , showcasing commitment to all stakeholders and highlighting significant progress toward sustainability goals . Joined SBTi's Business Ambition for 1.5 ° C , committing to align emissions reduction targets with the Paris Agreement to keep warming to 1.5 ° C and reaching science - based net - zero emissions by 2050 .