The Department Justice earlier this week filed comments with the Federal Energy Regulatory Commission regarding Vistra Corporation’s proposed acquisition of Energy Harbor, the Ohio-based owner and operator of the Beaver Valley, Davis-Besse, and Perry nuclear plants. Echoing misgivings raised in June by PJM Interconnection’s market monitor Monitoring Analytics regarding the possible exercise of undue market power as a result of the deal, the DOJ Antitrust Division’s 16-page document urges FERC to carefully review the proposal to ensure it will not substantially lessen competition and increase wholesale electricity prices in the PJM region.