EXHIBIT 23.02

October 15, 2001



Mr. Curtis Ashmos
Locke, Liddell & Sapp LLP
100 Congress Avenue, Suite 300
Austin, TX 78701

Dear Mr. Ashmos:

I,  Nathan M.  Robnett,  hereby  consent  to the use of our firm name  Robnett &
Company,  C.P.A.'s,  P.C., as "independent auditor" and my Independent Auditor's
Report dated August 22, 2001 and the Restated  Audited  Financial  Statements of
DeMarco Energy Systems of America,  Inc. as of June 30, 2001 and 2000, including
the respective notes thereto in the SB-2 Filing, as amended by Amendment numbers
1 and 2, to the Securities Exchange Commission.

My consent is limited as described  above and is valid until  December 31, 2001.
Any  additional  use or use after  December  31, 2001 if my name will require my
consent in each and every instance.

Sincerely,

/S/ Nathan M. Robnett
Nathan M. Robnett
Robnett & Company, P.C.