Exhibit 31.2

                    CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Mary H. Cilia, certify that:

1.   I have reviewed this annual report on Form 10-K for the fiscal years ended
     December 31, 1999 and 2000 of Zond-PanAero Windsystem Partners I;

2.   Based on my knowledge, this annual 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 annual report;

3.   Based on my knowledge, the financial statements, and other financial
     information included in this annual report, fairly present in all material
     respects the financial condition, results of operations and cash flows of
     the registrant as of, and for, the periods presented in this annual report.


Date: March 30, 2005
                           /s/ MARY H. CILIA
                           ------------------------------
                           Mary H. Cilia
                           Chief Financial Officer
                           Zond Windsystems Management LLC, as General
                           Partner of Zond-PanAero Windsystem Partners I