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                                                                    EXHIBIT 32.2

                    CERTIFICATION OF CHIEF FINANCIAL OFFICER
                                   PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I,  Howard  Smith,  certify,  pursuant  to 18 U.S.C.  Section  1350,  as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge,
Casita Enterprises,  Inc.'s Annual Report on Form 10-K for the fiscal year ended
December 31, 2009 fully complies with the requirements of Section 13(a) or 15(d)
of the Securities  Exchange Act of 1934 and that  information  contained in such
Annual  Report  on Form  10-K  fairly  presents  in all  material  respects  the
financial  condition and results of operations of Envision Solar  International,
Inc, Inc.


Date: April 12, 2010                       By: /s/ Howard Smith
                                             ----------------------------------
                                          Name:  Howard Smith
                                          Title: Chief Financial Officer

This  certification  accompanies  the  Annual  Report on Form 10-K  pursuant  to
Section 906 of the  Sarbanes-Oxley Act of 2002 and shall not be deemed filed for
purposes  of  Section  18 of the  Exchange  Act,  or  otherwise  subject  to the
liability  of  that  section.  This  certification  shall  not be  deemed  to be
incorporated  by  reference  into any  filing  under the  Securities  Act or the
Exchange  Act,  except to the extent that  Envision  Solar  International,  Inc.
specifically incorporates it by reference