Meet our team

David Amster-Olszewski

CEO and Founder

Corrina Kumpe

Chief Operating Officer, General Counsel

Melina Fleming

Executive Vice President of Marketing and Operations

Robert Hayner

Senior Vice President of Construction and Development

Mitch Petz

VP of Finance, Controller

David Amster-Olszewski, CEO and Founder

David Amster-Olszewski founded SunShare in 2011, and serving as chief executive officer, has grown it into one of the leading community solar companies in the nation.

David’s foundational SunShare project with Colorado Springs Utilities was the first competitive community solar program in the nation. In true startup fashion, David executed that project out of his apartment with only the help of interns. Since then, SunShare has relocated to Denver,  developed more than 100 MWs of community solar projects, and served more than 13,000 residential, commercial/municipal, and low-income subscribers..

David was featured in Forbes Magazine’s “30 Under 30” in 2016, recognized as a national leader in the alternative energy market.

Prior to founding SunShare, David worked with PowerLight Corporation in Geneva, Switzerland in 2006, and then in California in 2007, completing an executive management training program at SunPower in California until 2010. He has a degree in International Political Economics from Colorado College.

Corrina Kumpe, Chief Operating Officer, General Counsel

Corrina is SunShare's Chief Operating Officer, and leads all development, legal, and legislative affairs for SunShare.

She is an experienced legal professional, whose work has focused primarily on mergers and acquisitions, private placement of securities, and general corporate work. During her career, she has worked with Fortune 100 companies on complex transactions, including structured finance, asset-backed securitization, and acquisitions and divestitures.

Prior to her legal career, Corrina worked at the Pentagon, with legislators, and in consumer affairs with the Attorney General’s office. Corrina has a BA in Political Science from Gonzaga University, and a JD from the University of Denver College of Law.


Melina Fleming, Executive Vice President of Marketing and Operations

Melina leads sales, marketing, customer experience, and operations for SunShare, managing the customer lifecycle from acquisition through retention. She has overseen SunShare's enrollment of more than 13,000 residential and commercial subscribers, including customer management and back-office operations. She is thrilled to have been part of SunShare's achievement of 100 MWs of development, including the nation's first-ever 100% residential community solar garden in Minnesota and Colorado's largest community solar garden, and looks forward to serving thousands more residential subscribers in the coming years.

Melina has more than 20 years of marketing and customer operations experience, previously in the telecom industry. Melina has a degree in Russian Literature and Culture from the College of William & Mary in Williamsburg, Virginia.

Robert Hayner, Senior Vice President of Construction and Development

Robert leads development and construction for SunShare.

Robert comes to SunShare with over twenty-five years of executive management experience in development, construction and operations of commercial, office and industrial, mixed-use and solar PV projects throughout North America. Prior to joining SunShare, Robert worked on the development and construction of several award-winning projects with Continuum Partners in Denver, Colorado and more recently, dozens of utility scale solar PV projects throughout the southwest with SunEdison.

Robert has a BA in Leadership from the University of Denver and is a LEED Accredited Professional.

Mitch Petz, VP of Finance, Controller

Mitch leads finance and accounting for SunShare. 

Mitch is a CPA with fifteen years of 
experience, including financial reporting for Fortune 500 public companies.  His career has included public accounting for an international CPA firm in US and Chile and technical accounting for the largest SEC filer in Denver. 

Prior to joining SunShare Mitch was the Director of Corporate Accounting at a private equity backed company in Denver.  Mitch has a BA in Accounting from Michigan State University.