 IRVING, Texas, June 3, 2021 PRNewswire -- Ahead of a summer predicted to be hotter and drier than normal in Texas, Vistra is offering its Texas residential customers the opportunity to save money and reduce demand on the grid with TXU Energy Free Nights Solar Days SM. Initially launched in 2017, the popular first-of-its-kind plan gives customers 100 solar every day and free electricity every night, encouraging a shift of energy use to times outside of the states typical peak-demand periods. 