of Independent Registered Public Accounting Firm
To the Board of Directors
Pacific Ethanol, Inc.
We consent to the incorporation by reference in Registration
Statements (Nos. 333-137663, 333-123538, 333-169002, 333-176540, 333-185884, 333-189478 and 333-196876,) on Form S-8 and (Nos.
333-178685, 333-180731 and 333-195364) on Form S-3 of Pacific Ethanol, Inc. of our reports dated March 16, 2015 relating to our
audits of the consolidated financial statements and internal control over financial reporting, which appear in this Annual Report
on Form 10-K of Pacific Ethanol, Inc. for the year ended December 31, 2014.
/s/ HEIN & ASSOCIATES
March 16, 2015