Jason Painter

Senior Vice President and Chief Strategy Officer Mr. Painter leads the portfolio strategy and analysis functions at ACES. Mr. Painter and his team are responsible for long-term resource planning, portfolio strategy (including hedging and capacity market analysis and recommendations), portfolio modeling, portfolio analytics and performance, transmission analysis, and capacity markets. Mr. Painter also leads the …

Andy Whitesitt

Senior Vice President and Chief Business Development Officer As part of the ACES Senior Management team, Andy Whitesitt leads ACES’ Business Development function. Mr. Whitesitt joined ACES in July 2003 and has held various positions in power, natural gas, and business development, most recently as Vice President of Business Development. Mr. Whitesitt and his team …

JEFFREY L. WALKER

Senior Vice President and Chief Risk Officer Mr. Walker leads the Middle Office function at ACES.  The Middle Office has a primary focus on tracking and mitigating risk, as well as risk reporting, and risk management training and consulting.  Mr. Walker’s responsibilities include oversight of all Trading Control, Credit Services, Contract Administration, Regulatory, and Corporate Development …

DAVID H. CLASPELL

Senior Vice President & Chief Financial Officer Mr. Claspell leads the Back Office function at ACES. His responsibilities include oversight of all energy market settlement activities for ACES’ Clients, as well as oversight of ACES’ internal accounting activities, legal support, human resources, and general administrative functions. Mr. Claspell has more than 30 years experience in …

MIKE T. STEFFES

President & Chief Executive Officer Mr. Steffes assumed his role as President & Chief Executive Officer of ACES in September of 2013. As Senior Vice President & Chief Operating Officer at ACES for the previous 14 years, Mr. Steffes has been responsible for all commercial activities of the company.  This encompasses managing the company’s areas of …