Exhibit 23.1

D E  V I S S E R  G R A Y
CHARTERED ACCOUNTANTS

401 — 905 West Pender Street

Vancouver, BC Canada

V6C 1L6

Tel: (604) 687-5447

Fax: (604) 687-6737

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement on Form S-8 pertaining to the BPI Energy Holdings, Inc. 2005 Omnibus Stock Plan of our report dated October 12, 2004, with respect to the consolidated financial statements of BPI Energy Holdings, Inc. for the year ended July 31, 2004, included in the Annual Report (Form 10-K) for the year ended July 31, 2006.

/s/ De Visser Gray

Vancouver, British Columbia

December 20, 2006