Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company that provides essential resources to customers, businesses, and communities from California to Maine. Based in Irving, Texas, Vistra is a leader in the energy transformation with an unyielding focus on reliability, affordability, and sustainability. The company safely operates a reliable, efficient, power generation fleet of natural gas, nuclear, coal, solar, and battery energy storage facilities while taking an innovative, customer-centric approach to its retail business. In the 2020 Forbes Global 2000, Vistra Energy was ranked as the 756th-largest public company in the world. The company owns the Moss Landing Power Plant in California which currently contains the largest battery energy storage system in the world. In 2016, Texas Competitive Electric Holdings, parent company of TXU Energy and Luminant, emerged from Chapter 11. TCEH was then rebranded as Vistra Energy. Vistra acquired Dynegy in 2018. In 2019, Ambit Energy was acquired, resulting in a 32% residential market share in ERCOT, with NRG Energy as its largest competitor. It also acquired Crius Energy in 2019.