Talen Leadership Team

Ralph Alexander

Ralph Alexander, President and CEO

Ralph Alexander was appointed President and CEO of Talen Energy on December 6, 2016. He was previously a Partner with Riverstone Holdings, LLC. 

For nearly 25 years, Mr. Alexander served in various positions with subsidiaries and affiliates of BP plc, one of the world's largest oil and gas companies. From June 2004 until December 2006, he served as Chief Executive Officer of Innovene, BP's $20 billion olefins and derivatives subsidiary. 

From 2001 until June 2004, he served as Chief Executive Officer of BP's Gas, Power and Renewables and Solar segment and was a member of the BP group executive committee. Prior to that, Mr. Alexander served as a Group Vice President in BP's Exploration and Production segment and BP's Refinery and Marketing segment. He held responsibilities for various regions of the world, including North America, Russia, the Caspian, Africa, and Latin America. Prior to these positions, Mr. Alexander held various positions in the upstream, downstream and finance groups of BP. 

Mr.Alexander currently serves on the boards of Enviva Partners, LP, Talen Energy Corporation and CHI St. Luke’s Health. He has previously served on the boards of Foster Wheeler, Stein Mart, Inc., Amyris and Anglo-American plc. In addition, Mr. Alexander is currently Chairman Emeritus of the Board of NYU School of Engineering and a Trustee for New York University. 

He received an M.S. in Nuclear Engineering from Brooklyn Polytech (now NYU School of Engineering - Polytechnic) and holds an M.S. in Management Science from Stanford University.

Alex Hernandez

Alex Hernandez, Chief Financial Officer

Alex Hernandez was appointed Chief Financial Officer (CFO) of Talen Energy December, 6 2016. Mr. Hernandez was formerly a Senior Advisor at Riverstone Holdings prior to December of 2016, focused on the power sector and on the acquisition of Talen Energy.

Prior to joining Riverstone, Mr. Hernandez was CFO of Terraform Power until November 2015. Mr. Hernandez was formerly Managing Director in the Investment Banking Division of Goldman Sachs with a primary focus on coverage of North American companies in the merchant power, utilities and renewable energy sectors, providing strategic and capital markets advice to management teams and boards of directors.

Mr.Hernandez currently serves as a Roundtable member of the James A. Baker III Institute for Public Policy at Rice University.

He received a B.A. in Economics from Rice University, B.S.C. London School of Economics, MBA Columbia University.

Stacey Peterson

Stacey Peterson, Senior Vice President of Finance, Treasurer and Head of Investor Relations

Stacey L. Peterson serves as Senior Vice President of Finance, Treasurer, and Head of Investor Relations for Talen Energy.  In this role, Ms. Peterson leads Talen’s engagement with its investor base across the company’s capital structure including bondholders, term loan lenders, banks, and rating agencies, while also overseeing the company’s financial planning function. In addition, Ms. Peterson serves as co-chair of the company’s nuclear decommissioning trust fund and retirement plan committees, overseeing approximately $2.5 billion of invested assets. 

Prior to joining Talen Energy, Ms. Peterson spent a decade in various leadership roles within Calpine Corporation, focused on financial planning and analysis, capital allocation, commodities structuring, strategy, treasury and capital markets. In five years as Treasurer of Calpine, Ms. Peterson led the strategy for the company’s capital structure, including the execution of $18 billion in financings and closing the recent Calpine take-private transaction.   She also led the company’s global banking relationships across $2 billion of revolving credit facilities.

Throughout her career, Ms. Peterson has played a key role in recruiting, mentoring, and developing talent. Currently, she is an executive co-sponsor of Talen’s recruiting program and an executive sponsor of the company’s women’s and diversity inclusion initiatives.

Ms. Peterson holds a Bachelor of Science degree in Business, Finance from the Kelley School of Business at Indiana University, Bloomington and has completed advanced studies at Harvard Business School.