EX-23 11 ex23pso.htm CONSENT OF DELOITTE & TOUCHE ex23pso.htm
Exhibit 23
 
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
 
We consent to the incorporation by reference in Pre-Effective Amendment No. 1 to Registration Statement No. 333-156319 on Form S-3 of our report dated February 26, 2010 relating to the financial statements of Public Service Company of Oklahoma appearing in and incorporated by reference in the Annual Report on Form 10-K of Public Service Company of Oklahoma for the year ended December 31, 2009.
 
 

 
 
/s/ Deloitte & Touche LLP
 
Columbus, Ohio
February 26, 2010