Our Team

Executive Team

David Amster-Olszewski

CEO & 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



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

EVP Strategy & Customer Experience


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.

Mitchell Petz



Mitch leads accounting and administration for SunShare. Mitch is a CPA with fifteen years of experience in accounting and finance, 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.

Mathew Ricci

VP Construction


Matt Ricci leads all project construction and asset management for SunShare. Matt is a Business Management, Project Management, and Development Executive with over 29 years of operations and construction experience. He specializes in strategic initiatives, process improvement and the management of organizations to achieve goals and objectives with a focus on sustainability, leadership and change management. His responsibilities have included organizational leadership, management and oversight of engineering, procurement and the construction of commercial, government and private projects. Scopes of work have included design-build commercial high-rise buildings, industrial oil and gas refinery construction, communications network construction, with a significant background in the deployment of renewable energy projects that include the installation solar photovoltaic systems, electrical substations low voltage and medium voltage overhead and underground utility infrastructures. He has overseen and managed the installation of more than 2 Gigawatts of solar photovoltaic projects throughout North America and India.