Exhibit
      31.1


CERTIFICATION
      PURSUANT TO RULE 13a-14(a)


OF
      THE
      SECURITIES EXCHANGE ACT OF 1934




I,
      Ronald
      Stewart, certify that:





I
      have
      reviewed this Quarterly Report on Form 10-QSB of Ener1, Inc.;


Based
        on
        my knowledge, this report does not contain any untrue statement of a material
        fact or omit to state a material fact necessary to make the statements made,
        in
        light of the circumstances under which such statements were made, not misleading
        with respect to the period covered by this report;
 Based
          on
          my knowledge, the financial statements, and other financial information
          included
          in this report, fairly present in all material respects the financial condition,
          results of operations and cash flows of the small business issuer as of,
          and
          for, the periods presented in this report;
 The
          small
          business issuer's other certifying officer and I are responsible for
          establishing and maintaining disclosure controls and procedures (as defined
          in
          Exchange Act Rules 13a-15(e) and 15d-15(e)) for the small business issuer
          and
          have:
 Designed
          such disclosure controls and procedures, or caused such disclosure controls
          and
          procedures to be designed under our supervision, to ensure that material
          information relating to the small business issuer, including its consolidated
          subsidiaries, is made known to us by others within those entities, particularly
          during the period in which this report is being prepared;
 Evaluated
          the effectiveness of the small business issuer's disclosure controls and
          procedures and presented in this report our conclusions about the effectiveness
          of the disclosure controls and procedures, as of the end of the period
          covered
          by this report based on such evaluation; and
 Disclosed
          in this report any change in the small business issuer's internal control
          over
          financial reporting that occurred during the small business issuer's most
          recent
          fiscal quarter (the small business issuer's fourth fiscal quarter in the
          case of
          an annual report) that has materially affected, or is reasonably likely
          to
          materially affect, the small business issuer's internal control over financial
          reporting; and
 The
          small
          business issuer's other certifying officer and I have disclosed, based
          on our
          most recent evaluation of internal control over financial reporting, to
          the
          small business issuer's auditors and the audit committee of small business
          issuer's board of directors (or persons performing the equivalent
          functions):
 All
          significant deficiencies and material weaknesses in the design or operation
          of
          internal control over financial reporting which are reasonably likely to
          adversely affect the small business issuer's ability to record, process,
          summarize and report financial information; and
 Any
          fraud, whether or not material, that involves management or other employees
          who
          have a significant role in the small business issuer's internal control
          over
          financial reporting.
  Date: August
                  21, 2006
                
                /s/ Ronald
                  StewartBy:
                    Ronald Stewart
                  Title:
                    Interim Chief Executive Officer
                  (Principal
                    Executive Officer and
                  Duly
                    Authorized Officer)