Exhibit 32.1

Certification Pursuant to

18 U.S.C.
Section 1350,

As Adopted pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

I, Richard D. Clayton, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge, the Quarterly Report of Raser Technologies, Inc. on Form 10-Q for the
quarterly period ended September 30, 2009 (the Report) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in
all material respects, the financial condition and results of operations of Raser Technologies, Inc.



|                       |  |  |  |  |  |                                                           
|---------------------- |  |  |  |  |  | ----------------------------------------------------------
|Date: November 9, 2009 |  |  |  |  |  | /s/    Richard D. Clayton                                 
|                       |  |  |  |  |  | Richard D. Clayton                                        
|                       |  |  |  |  |  | Principal Executive Officer, General Counsel and Secretary
|                       |  |  |  |  |  | (Co-Principal Executive Officer)                          

Certification Pursuant to

18 U.S.C. Section 1350,

As Adopted pursuant to

Section 906 of the Sarbanes-Oxley Act of
2002

I, Martin F. Petersen, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002, that, to my knowledge, the Quarterly Report of Raser Technologies, Inc. on Form 10-Q for the quarterly period ended September 30, 2009 (the Report) fully complies with the requirements of
Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Raser Technologies, Inc.



|                       |  |  |  |  |  |                                             
|---------------------- |  |  |  |  |  | --------------------------------------------
|Date: November 9, 2009 |  |  |  |  |  | /s/    MARTIN F.
PETERSEN                   
|                       |  |  |  |  |  | Martin F. Petersen                          
|                       |  |  |  |  |  | Chief Financial Officer                     
|                       |  |  |  |  |  | (Principal Financial and Accounting Officer)

Certification Pursuant to

18 U.S.C. Section 1350,

As Adopted pursuant to

Section 906 of the Sarbanes-Oxley Act of
2002

I, Kraig T. Higginson, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002, that, to my knowledge, the Quarterly Report of Raser Technologies, Inc. on Form 10-Q for the quarterly period ended September 30, 2009 (the Report) fully complies with the requirements of
Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Raser Technologies, Inc.



|                       |  |  |  |  |  |                                 
|---------------------- |  |  |  |  |  | --------------------------------
|Date: November 9, 2009 |  |  |  |  |  | /s/    Kraig T. Higginson       
|                       |  |  |  |  |  | Kraig T. Higginson              
|                       |  |  |  |  |  | Executive Chairman of the Board 
|                       |  |  |  |  |  | (Co-Principal Executive Officer)

A signed original of each of the written statements above required by
Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to Raser Technologies, Inc. and will be retained by Raser Technologies, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

The forgoing certification is being furnished to the Securities and Exchange Commission as an exhibit to the Form 10-Q and shall not be
considered filed as part of the Form 10-Q.