Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the use in the Prospectus constituting part of this Registration Statement on Post Effective Amendment No. 1 to Form SB-2 of our report dated March 22, 2006, relating to the financial statements of Power Efficiency Corporation, which appears in such Prospectus. We also consent to the reference to us under the heading "Experts" in such Prospectus.
| /s/ Sobel & Co., LLC |
| Certified Public Accountants |
September 19, 2006
Livingston, New Jersey