Leadership Team

Bill Mulligan is our Chief Executive Officer. Before joining Maxeon, he served as the Chief Operating Officer for Sila Nanotechnologies, a battery materials company. Prior to that, Mr. Mulligan held senior leadership positions at SunPower Corporation, including Executive Vice President of Global Operations, Vice President Technology Strategy and Vice President Research and Development.
He was also President and Chief Executive Officer at SolarBridge Technologies, a micro inverter company. Before that he has held engineering roles at AstroPower and Fairchild/National Semiconductor. Dr. Mulligan has almost 30 years of solar industry experience and over 30 technical publications relating to solar technology to his credit. Dr. Mulligan holds a B.A. in History and a B.S. in Chemistry from the University of Washington, a M.S.E. in Chemical Engineering from the University of Michigan, and a Ph.D. in Materials Science from Colorado School of Mines.

Matt Dawson is our Chief Technology Officer. Before joining Maxeon, he served as the Vice President of Technology at Sila Nanotechnologies, a battery materials company. Prior to that, he held various leadership roles at SunPower Corporation, where in 2019 he became Vice President of Research and Development and was responsible for technology strategy, cell and module product development, and the company's R&D lab infrastructure. With over 15 years' experience developing and deploying products across the solar energy value chain, Matt Dawson has a proven track record of scaling innovation from R&D stage to volume manufacturing and delivering success in competitive commercial environments. Mr. Dawson holds a B.A. in English Literature, a B.Sc. in Engineering Physics, and an Executive MBA from Queen’s University (Kingston, Canada), and a MASc. in Engineering Physics from the University of British Columbia (Vancouver, Canada).

Lindsey Wiedmann is our Chief Legal Officer and leads our global legal and sustainability teams. During her decade with SunPower, she has supported the residential, commercial and power plant business units globally with legal teams in France, Mexico and the United States. Ms. Wiedmann was also the lead SunPower attorney for 8point3 Energy Partners LP’s initial public offering in 2015 and nearly three years of acquisitions and operational activity as a public company. Prior to joining SunPower, Ms. Wiedmann spent six years practicing project finance at Latham & Watkins LLP in San Francisco and Singapore. Ms. Wiedmann received her Bachelor of Science degree from University of California, San Diego and her Juris Doctor degree from Columbia Law School.

Peter Aschenbrenner is our Chief Strategy Officer. Prior to Maxeon Solar Technologies he served as SunPower Executive Vice President of Corporate Strategy and Business Development, responsible for driving the company’s strategy, mergers and acquisition and business activities. Previously, he was the company’s Vice President of Marketing and Sales, where he established the SunPower brand and oversaw development of the industry’s first dealer network program. Prior to joining SunPower, Aschenbrenner served as senior vice president of global operations at AstroPower, Inc., a solar product manufacturing company. He has more than 35 years of solar industry experience, including management positions at Siemens Solar, PV Electric GmbH, and ARCO Solar. Mr. Aschenbrenner graduated from Stanford University in 1978 with a Bachelor of Arts degree in product design.

Tiffany See joined Maxeon Solar Technologies in August 2020 as our Chief Human Resources Officer. An experienced Human Resources leader, she is joining from BHP, a global resources company. Prior to BHP, Ms. See was Executive Director, Human Resources (Asia), for Dell Technologies, where she spent 17 years in a variety of Human Resources leadership positions. Ms. See holds a bachelor’s degree in Commerce from the University of Newcastle (Australia), and Bachelor of Laws from University of New England (Australia). She has lived and worked in Singapore for 17 years, and prior to that in Penang, Malaysia. Ms. See is also a Certified Solution Focused Coach.

Ralf Elias, who joined Maxeon on July 1, 2021, is our Executive Vice President and Global Head of Distributed Generation (DG) Products. Mr. Elias brings more than two decades of executive experience to Maxeon, including serving as Global Vice President IoT/Global Business Development and Partnerships at Samsung Electronics. Prior to that, Mr. Elias worked for 14 years in various management roles with increasing responsibility at Vodafone Group, where he became Group Head of Products and Innovation, and General Manager Product Development. At Vodafone he led numerous innovative engineering and commercial projects for add-on services culminating in the development of the global SMART HOME and Consumer IoT strategy. Mr. Elias holds a Bachelor degree in mechanical engineering from the University of Essen, and an MBA from the Technical University of Munich.

Vikas Desai is Maxeon’s Chief Commercial Officer, responsible for our global go-to-market and customer-facing functions. A solar energy and technology executive with over twenty years’ experience, Mr. Desai has built and scaled multiple global businesses spanning hardware and software for both B2B and B2C. He came to Maxeon with the Company’s acquisition of assets from Complete Solaria in October 2023, where he had served as President. Previously, he has held leadership roles at Powerside, Flextronics, SunEdison, SunPower, EchoFirst and other technology companies.

Mr. Desai received an MBA from the University of California, Berkeley, Haas School of Business, a Master’s degree in Power Electronics Engineering from Loughborough University, and his Bachelor’s degree in Electrical Engineering from L.D. College of Engineering.