Retired Senior Vice President and Chief Nuclear Officer of Luminant Director since: 2015 Age: 70 STANDING BOARD COMMITTEES: Audit and Risk Committee Nuclear, Operations and Environmental Sustainability Committee (Chair) OUTSIDE DIRECTORSHIPS: None EXECUTIVE EXPERIENCE: Mr. Flores joined Luminant, a private Texas-based electric utility, in 1983 and served as Senior Vice President and Chief Nuclear Officer from 2009 to 2015. In this position, he oversaw operations at the Comanche Peak Nuclear Power Plant in Texas, reported nuclear matters directly to Luminant s nuclear oversight advisory board and represented Luminant with the Nuclear Regulatory Commission, the Institute of Nuclear Power Operations, the Nuclear Energy Institute and on various committees and working groups in the nuclear industry. SKILLS AND QUALIFICATIONS: Based primarily upon Mr. Flores extensive executive and leadership experience as senior vice president and chief nuclear officer of an electric utility; government relations, public affairs, regulatory, industry, risk management, compensation, operations, environmental and sustainability and administrative skills and experience; and tenure and contributions as a current Board and Board committee member, the Board concluded that Mr. Flores should serve as a director of Ameren.