form8-k.htm
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

DATE OF REPORT
(DATE OF EARLIEST EVENT REPORTED): February 21, 2008
 

Commission
File Number
  
Registrant; State of Incorporation;
Address; and Telephone Number
  
IRS Employer
Identification
Number
         
1-13739
  
UNISOURCE ENERGY CORPORATION
  
86-0786732
   
(An Arizona Corporation)
One South Church Avenue, Suite 100
Tucson, AZ 85701
(520) 571-4000
    
         
1-5924    TUCSON ELECTRIC POWER COMPANY   86-0062700
   
(An Arizona Corporation)
One South Church Avenue, Suite 100
Tucson, AZ 85701
(520) 571-4000
    

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
 
 
Item 8.01 - Other Events.

TEP Rate Case Proceedings.

As previously reported, Tucson Electric Power Company (TEP) filed a rate case with the Arizona Corporation Commission (ACC) in July 2007.  TEP requested that the rate case proceeding be concluded within 18 months in order for a rate increase to be effective no later than January 1, 2009.

On February 21, 2008 an ACC Administrative Law Judge (ALJ) issued an order modifying the rate case procedural schedule, providing a one week delay in the filing of ACC Staff and intervenor testimony.  The start date for the rate case hearing before the ALJ did not change.

The new procedural schedule is as follows:
 
 
Date
ACC Staff and intervenor testimony
February 29, 2008
TEP rebuttal testimony
April 1, 2008
ACC Staff and intervenor surrebuttal testimony
April 24, 2008
TEP rejoinder testimony
May 7, 2008
Rate case hearing before the ALJ
May 12, 2008
 
TEP believes that the revised procedural schedule provides sufficient time for new rates to be effective by January 1, 2009.  TEP cannot predict the outcome of the rate case proceedings.
 

 
SIGNATURES
 
 
Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
 
 
     
     
Date: February 21, 2008
  
UNISOURCE ENERGY CORPORATION
——————————————————
(Registrant)
 
 
/ s /  Kevin P. Larson
   
——————————————————
Senior Vice President and Principal
Financial Officer
 
 
     
Date: February 21, 2008
  
TUCSON ELECTRIC POWER COMPANY
——————————————————
(Registrant)
 
 
/ s /  Kevin P. Larson
   
——————————————————
Senior Vice President and Principal
Financial Officer