Gran Tierra Energy (GTE) 8-K/A Interim Consolidated Financial Statements

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS

We consent to the incorporation by reference in Registration Statement Nos. 333-146815 and 333-153376 of Gran Tierra Energy Inc., of our report dated September 8, 2008, (which report expresses an unqualified opinion and includes explanatory paragraphs relating to our consideration of internal controls over financial reporting, and relating to our previous reporting in accordance with Canadian generally accepted accounting principles on the consolidated financial statements as at December 31, 2007 and 2006 and for the years ended December 31, 2007, 2006 and 2005) relating to the consolidated financial statements of Solana Resources Limited appearing in this Current Report on Form 8-K/A of Gran Tierra Energy Inc. dated January 28, 2009.

 /s/ Deloitte & Touche LLP

Independent Registered Chartered Accountants

Calgary, Canada

January 28, 2009