Sunnova Energy International Inc. announced appointment of Mary Yang as an independent Class III director of the Company's Board of Directors effective October 13th, 2021. Yang currently serves as Senior Vice President and Chief Strategy Officer of Ciena Corporation, a position she has held since April 2020. Prior to joining Ciena, she served as Vice President of Corporate Development /Business Development at NIO Inc., from February 2016 to April 2020.