EXHIBIT 31.1



  CERTIFICATION PURSUANT TO RULE 13-A-14 OR 15D-14 OF THE SECURITIES EXCHANGE
   ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT
                                    OF 2002
I, Frank W. Smith, certify that:

     1.     I have reviewed this Amendment No. 1 to the Annual Report of Entech
Solar, Inc. (formerly WorldWater & Solar Technologies Corp.):

     2. Based on my knowledge, this 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;

     3.     [Intentionally omitted];

     4. The registrant's other certifying officer(s) 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)) and internal control over financial
reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the
registrant and have:

     (a) 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 registrant, 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;

     (b) Designed such internal control over financial reporting, or caused such
internal control over financial reporting to be designed under our supervision,
to provide reasonable assurance regarding the reliability of financial reporting
and the preparation of financial statements for external purposes in accordance
with generally accepted accounting principles;

     (c) Evaluated the effectiveness of the registrant'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

     (d) Disclosed in this report any change in the registrant's internal
control over financial reporting that occurred during the registrant's most
recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an
annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant's internal control over financial reporting;
and

     5.    The registrant's other certifying officer(s) and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, to the registrant's auditors and the audit committee of the
registrant's board of directors (or persons performing the equivalent
functions):

     a.     all significant deficiencies and material weaknesses in the design
or operation of internal control over financial reporting which are reasonable
likely to adversely affect the registrant's ability to record, process,
summarize and report financial information; and

     b.     Any fraud, whether or not material, that involves management or
other employees who have a significant role in the registrant's internal control
over financial reporting.

Dated: April 30, 2009                    By:     /s/ Frank W. Smith
                                                 ----------------------------
                                        Name:    Frank W. Smith
                                        Title:   Chief Executive Officer