On January 29, 2015, Ira A. Greenstein submitted to Arista Power, Inc. his resignation as a member of the Board of Directors of the company. Mr. Greenstein's resignation was accepted by the Board on February 2, 2015. At the time of his announcement, Mr. Greenstein served as the Chairman of the Nominating & Corporate Governance Committee of the Board and the Chairman of the Compensation Committee of the Board.

Mr. Greenstein's decision to resign from the Board was solely due to personal reasons.