 VAN NUYS, CA ACCESSWIRE June 17, 2021 Capstone Green Energy Corporation NASDAQ:CGRN Capstone, or the Company, a global leader in carbon reduction and on-site resilient green energy solutions, today announced that, due to demand, the Company and the underwriter have decided to increase the size of the previously announced public offering, and accordingly the underwriter has agreed to purchase on a firm commitment basis 1,904,763 shares of common stock of the Company at a price to the public of 5.25 per share, less underwriting discounts and commissions. The closing of the offering is expected to occur on or about June 22, 2021, subject to satisfaction of customary closing conditions. 