Capstone Green Energy Corporation announced that Darren Jamison has resigned as President and board member of Capstone Green Energy, effective August 22, 2023. The board will be initiating a search process to identify a permanent President. Robert C. Flexon, Capstone Board Chair, was appointed as Executive Chairman of the board effective August 9, and was also appointed to serve as Interim President from the effective date of Mr. Jamison's resignation until a successor is named.

In connection with Mr. Flexon's transition to Executive Chairman, Denise M. Wilson was appointed Lead Independent Director of the board. John J. Juric, who joined Capstone as Chief Financial Officer in March 2023, will continue to provide financial leadership for the company. Mr. Flexon brings years of industry experience to his interim role.

He is currently Chair of the Board of PG&E Corporation and also serves on the ERCOT Board of Directors. Prior to focusing on board service, he was President and Chief Executive Officer of Dynegy Inc. for seven years. Before Dynegy, he served at UGI Utilities as CFO, CEO of Foster Wheeler, a global engineering and construction firm, and CFO and COO of independent power producer NRG.

Along with expertise in finance and accounting in the energy, chemicals and oil and gas sectors, he brings experience in safety, workforce organization, and turnarounds, having led both Dynegy's 2011 bankruptcy and its culture transformation and M&A growth following the restructuring. Mr. Flexon has served on the Capstone board since 2018 and served as non-executive Chairman since January 2021.