On June 12, 2022, the board of directors of Volta Inc. approved the appointment of Vincent T. Cubbage to the position of Interim Chief Executive Officer of the company effective as of June 13, 2022. Mr. Cubbage, age 57, most recently served as Director and Co-Chairperson of the Board. He has served on the Board since the closing of the business combination in August 2021 (the Business Combination) with the company's predecessor, Tortoise Acquisition Corp.

II (Tortoise Corp. II), and served as Chief Executive Officer and Chairman of Tortoise Corp. II from July 2020 until the completion of the Business Combination.

Mr. Cubbage has served as Chief Executive Officer and Chairman of the board of directors of TortoiseEcofin Acquisition Corp. III since February 2021. Mr. Cubbage served as Chief Executive Officer and Chairman of Tortoise Acquisition Corp.

from March 2019 to the completion of its initial business combination with Hyliion Inc. on October 1, 2020, and he continues to serve on the board of directors of Hyliion Holdings Corp. He has served as Managing Director - Private Energy of TortoiseEcofin since January 2019. Mr. Cubbage served as the Founder and Chief Executive Officer of Lightfoot Capital Partners from its formation in 2006 through its wind up in December 2019.

He served as Chief Executive Officer and Chairman of the general partner of Arc Logistics Partners LP, from October 2013 to the date of its sale in December 2017. Prior to founding Lightfoot Capital, Mr. Cubbage was a Senior Managing Director in the Investment Banking Division of Banc of America Securities from 1998 to 2006; and prior to that was a Vice President at Salomon Smith Barney where he worked from 1994 to 1998. Mr. Cubbage received an M.B.A. from the American Graduate School of International Management and a B.A. from Eastern Washington University.

During his service as Interim Chief Executive Officer of the Company, Mr. Cubbage will not serve as Co-Chairperson of the Board or as a member of the Nominating and Corporate Governance Committee or the Audit Committee of the Board. Effective as of June 13, 2022, Bonita C. Stewart was appointed as Chair of the Nominating and Governance Committee of the Board and as a member of the Audit Committee of the Board.