 IRVING, Texas, July 14, 2021 PRNewswire -- Dynegy ranked No.1 in overall excellence, price competitiveness, and ease of doing business, as part of Energy Research Consulting Groups ERCG national aggregator, broker, and consultant ABC survey-based study. This is the first time in the history of ERCGs study that a single supplier claimed all three top excellence awards, the highest honor based on the data generated from more than 160 participating firms. 