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Management

David Crane
President and Chief Executive Officer
David Crane
President and Chief Executive Officer


David Crane has served as President, Chief Executive Officer and on the Board of Directors of NRG since December 2003. Crane leads NRG’s transformation into the nation’s premier energy company positioned for a sustainable energy future—developing new solar, wind, high efficiency gas and other generation sources while growing NRG’s retail, carbon capture and electric vehicle service businesses. Crane has been recognized for exemplary leadership, receiving such awards as Ernst & Young’s 2010 T... 
Kirkland Andrews
Executive Vice President and Chief Financial Officer
Kirkland Andrews
Executive Vice President and Chief Financial Officer


Kirk Andrews has served as Executive Vice President and Chief Financial Officer since September 2011, managing NRG’s corporate financial functions including Treasury, Accounting, Tax, Risk, Credit Management and Insurance. As head of the finance organization, Andrews plays an instrumental role in formulating capital allocation strategies and helping NRG finance the Company’s renewables and repowering program. Prior to NRG, he served at Citigroup Global Markets, where he was Head of North Am... 
Lee Davis
Senior Vice President and Regional President, East
Lee Davis
Senior Vice President and Regional President, East


Lee Davis serves as Senior Vice President and Regional President, East, overseeing commercial and operating activities and business development for NRG’s largest region by generating capacity. With almost 22,000 megawatts of generating assets in the region, he is responsible for leading efforts to maximize the value of existing units, repower generating sites with more efficient units, reduce emissions from the region’s fossil fueled plants and build new clean energy resources. Davis joined NRG ... 
Thomas P. Doyle, P.E.
Executive Vice President, NRG Energy, and President and CEO, NRG Solar
Thomas P. Doyle, P.E.
Executive Vice President, NRG Energy, and President and CEO, NRG Solar


Tom Doyle leads NRG’s solar business as Executive Vice President and President and CEO, NRG Solar. Doyle was instrumental in building NRG into one of the largest developers of solar in the country and continues to lead the development of the Company’s pipeline of solar projects. He transitioned the company from a start-up large-scale solar development company into one of the most diverse solar companies in the business focused on both large-scale and distributed solar. Joining NRG in 2009 as Pre... 
Mauricio Gutierrez
Executive Vice President, Chief Operating Officer
Mauricio Gutierrez
Executive Vice President, Chief Operating Officer


Mauricio Gutierrez has served as Executive Vice President and Chief Operating Officer since July 2010, overseeing NRG’s Plant Operations, Commercial Operations, Thermal, Environmental Compliance and Engineering, Procurement and Construction divisions. Gutierrez is responsible for ensuring NRG’s nearly 47,000 megawatt fleet operates at top levels of safety, performance and environmental compliance. His role overseeing NRG’s commodities trading helps maximize the Company’s financial performance th... 
Patti Helfer
Senior Vice President and Chief Administrative Officer
Patti Helfer
Senior Vice President and Chief Administrative Officer


Since July 2011, Patti Helfer has led NRG’s Human Resources, Information Technology and Facilities departments as Senior Vice President and Chief Administrative Officer. In this role, she ensures NRG has the right people, processes and technologies in place to support the Company’s business strategies. Helfer also leads efforts to align the Company’s infrastructure to provide the flexibility needed for NRG’s new innovation businesses. She has served at NRG since June 2004 in roles including ... 
David Hill
Executive Vice President and General Counsel
David Hill
Executive Vice President and General Counsel


David R. Hill joined NRG as Executive Vice President and General Counsel in September 2012. Hill joined NRG from Sidley Austin LLP, where he was a partner in the firm’s Washington, D.C. office and co-head of the Global Energy Practice. From 2005 to 2009 he served as General Counsel of the U.S. Department of Energy, appointed by President George W. Bush and confirmed by the U.S. Senate. He previously was a partner at major law firms in Washington, D.C., and Kansas City, Mo., where his practice in... 
Ron Stark
Vice President and Chief Accounting Officer
Ron Stark
Vice President and Chief Accounting Officer


Ron Stark, Chief Accounting Officer since March 2012, is responsible for directing NRG’s financial accounting and reporting activities. Stark previously served at NRG as Vice President, Internal Audit, and Director, Financial Reporting, since joining the Company in January 2007 as Senior Manager, Accounting Research. He previously held various management positions at Pegasus Communications and Berlitz International after beginning his career with Deloitte and Touche in 1985. Stark is a CPA and r... 
John Ragan
Executive Vice President and Regional President, Gulf Coast
John Ragan
Executive Vice President and Regional President, Gulf Coast


John Ragan serves as Executive Vice President and Regional President, Gulf Coast, where he is responsible for all NRG businesses in Texas and Louisiana. Ragan oversees the Company’s largest regional power generation portfolio and NRG’s relationship with electric cooperatives and municipalities in Louisiana, Arkansas and Texas. Located in Houston, one of the dual corporate headquarters of NRG Energy, Ragan also is responsible for overseeing NRG’s activities and commitment to the city and the regi... 
Denise Wilson
Executive Vice President and President, New Businesses
Denise Wilson
Executive Vice President and President, New Businesses


As Executive Vice President and President, New Businesses, Denise Wilson leads NRG's emerging and high-growth businesses including Green Mountain Energy Company; Green Mountain Wind; distributed solar; the eVgo electric vehicle charging network; and Energy Technology Ventures, NRG’s venture capital investment joint venture with GE and Conoco Phillips. These businesses represent NRG’s new innovation and clean energy initiatives, and Wilson leads NRG’s effort to incubate them, providing the indepe... 
Steve Barnes
President, Energy Plus Holdings
Steve Barnes
President, Energy Plus Holdings


Steve Barnes was named President of Energy Plus in June 2012 after serving as Chief Financial Officer since 2009. As President, Barnes directs all aspects of the business, particularly leading the company’s residential expansion in several Northeast states and launches into new markets. He also oversees efforts to create opportunities for NRG’s other retail businesses to leverage Energy Plus’ unique platform of direct marketing and affinity partnerships. During his time as CFO, Barnes helped the... 
James Steffes
President, Green Mountain Energy Company
James Steffes
President, Green Mountain Energy Company


James Steffes joined Green Mountain in July 2012 as President and will oversee all business activities of the nation’s premier green retail electric company providing 100% renewable energy choices. He leads the company’s national residential, commercial and industrial businesses and is responsible for expanding the cleaner energy choices Green Mountain provides and the markets it serves. Prior to joining Green Mountain, Jim worked at Direct Energy for almost a decade, most recently as Vice Presi... 
Elizabeth Killinger
President of Reliant
Elizabeth Killinger
President of Reliant


As president of Reliant, Killinger is responsible for leading all aspects of Reliant’s retail business. The company provides electricity, energy services and smart energy solutions to more than 1.5 million retail customers including homes, manufacturing facilities, government entities and institutions. Killinger was named President of Reliant in October 2012. She joined Reliant in May 2002 after two years in consulting roles across the company’s wholesale and retail businesses. She led several ... 
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