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<P align="center" style="font-size: 14pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
<FONT style="font-size: 12pt">Washington, D.C. 20549
</FONT></B>

<P align="center" style="font-size: 18pt"><B>FORM 8-K</B>

<P align="center" style="font-size: 12pt"><B>CURRENT REPORT<BR>
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</B>

<P align="center" style="font-size: 10pt"><B>Date of Report (Date of earliest event reported): November 6, 2008</B>

<P align="center">&nbsp;

<P style="font-size: 24pt" align="center"><B>UNISOURCE ENERGY CORPORATION</B><BR> <FONT style="font-size: 10pt">(Exact name of registrant as
specified in its charter) </FONT>


<TABLE style="font-size: 10pt; text-align: center" cellspacing="0" cellpadding="0" width="100%" border="0">

 <TR>
  <TD width="32%">&nbsp;</TD>
  <TD width="1%">&nbsp;</TD>
  <TD width="33%">&nbsp;</TD>
  <TD width="1%">&nbsp;</TD>
  <TD width="32%">&nbsp;</TD>
 </TR>
 <TR valign="bottom">
  <TD style="border-bottom: #000000 1px solid"><B>(An Arizona Corporation)</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>1-13739</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>86-0786732</B></TD>
 </TR>
 <TR valign="top">
  <TD>(State or other Jurisdiction of Incorporation)</TD>
  <TD>&nbsp;</TD>
  <TD>(Commission File Number)</TD>
  <TD>&nbsp;</TD>
  <TD>(IRS Employer Identification No.)</TD>
 </TR>

</TABLE>
<TABLE style="font-size: 10pt; text-align: center" cellspacing="0" cellpadding="0" width="100%" border="0">

 <TR>
  <TD width="49%">&nbsp;</TD>
  <TD width="1%">&nbsp;</TD>
  <TD width="49%">&nbsp;</TD>
 </TR>
 <TR valign="bottom">
  <TD style="border-bottom: #000000 1px solid"><B>One South Church Avenue, Suite 100<BR>Tucson, AZ</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>85701</B></TD>
 </TR>
 <TR valign="top">
  <TD>(Address of Principal Executive Offices)</TD>
  <TD>&nbsp;</TD>
  <TD>(Zip Code)</TD>
 </TR>

</TABLE>


<P style="font-size: 10pt" align="center">Registrant&#8217;s telephone number, including area code: <B>(520) 571-4000</B>

<TABLE style="font-size: 10pt; text-align: center" cellspacing="0" cellpadding="0" width="30%" border="0">


 <TR>
  <TD width="100%">&nbsp;</TD>
 </TR>
 <TR>
  <TD style="border-bottom: #000000 1px solid" nowrap><B>&nbsp;</B></TD>
 </TR>
 <TR>
  <TD nowrap>(Former name or former address if changed since last report.)</TD>
 </TR>

</TABLE>

<P align="center">&nbsp;

<P style="font-size: 24pt" align="center"><B>TUCSON ELECTRIC POWER COMPANY</B><BR> <FONT style="font-size: 10pt">(Exact name of registrant as
specified in its charter) </FONT>
<TABLE style="font-size: 10pt; text-align: center" cellspacing="0" cellpadding="0" width="100%" border="0">

 <TR>
  <TD width="32%">&nbsp;</TD>
  <TD width="1%">&nbsp;</TD>
  <TD width="33%">&nbsp;</TD>
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  <TD width="32%">&nbsp;</TD>
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  <TD style="border-bottom: #000000 1px solid"><B>(An Arizona Corporation)</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>1-5924</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>86-0062700</B></TD>
 </TR>
 <TR valign="top">
  <TD>(State or other Jurisdiction of Incorporation)</TD>
  <TD>&nbsp;</TD>
  <TD>(Commission File Number)</TD>
  <TD>&nbsp;</TD>
  <TD>(IRS Employer Identification No.)</TD>
 </TR>

</TABLE>

<TABLE style="font-size: 10pt; text-align: center" cellspacing="0" cellpadding="0" width="100%" border="0">

 <TR>
  <TD width="49%">&nbsp;</TD>
  <TD width="1%">&nbsp;</TD>
  <TD width="49%">&nbsp;</TD>
 </TR>
 <TR valign="bottom">
  <TD style="border-bottom: #000000 1px solid"><B>One South Church Avenue, Suite 100<BR>Tucson, AZ</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>85701</B></TD>
 </TR>
 <TR valign="top">
  <TD>(Address of Principal Executive Offices)</TD>
  <TD>&nbsp;</TD>
  <TD>(Zip Code)</TD>
 </TR>

</TABLE>


<P style="font-size: 10pt" align="center">Registrant&#8217;s telephone number, including area code: <B>(520) 571-4000</B>
<TABLE style="font-size: 10pt; text-align: center" cellspacing="0" cellpadding="0" width="30%" border="0">


 <TR>
  <TD width="100%">&nbsp;</TD>
 </TR>
 <TR>
  <TD style="border-bottom: #000000 1px solid" nowrap><B>&nbsp;</B></TD>
 </TR>
 <TR>
  <TD nowrap>(Former name or former address if changed since last report.)</TD>
 </TR>

</TABLE>


<P align="left" style="font-size: 10pt">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:

<P align="left" style="font-size: 10pt">
<FONT face="Wingdings">&#111;</FONT> Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<BR><BR>
<FONT face="Wingdings">&#111;</FONT> Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<BR><BR>
<FONT face="Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<BR><BR>
<FONT face="Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<BR>


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<P align="left" style="font-size: 10pt"><U><B>Item</B></U> <U><B>2.02 Results of Operations and Financial Condition</B></U>


<P align="left" style="font-size: 10pt; text-indent: 3%">On November&nbsp;6, 2008, UniSource Energy Corporation (&#147;UniSource Energy&#148;) issued a press release announcing earnings
for the quarter ended September&nbsp;30, 2008 for UniSource Energy and Tucson Electric Power Company.&nbsp;&nbsp;A copy of the press
release is attached hereto as Exhibit&nbsp;99.


<P align="left" style="font-size: 10pt">&nbsp;
<BR>
<U><B>Item&nbsp;9.01 Financial Statements and Exhibits</B></U>


<P align="left" style="font-size: 10pt; text-indent: 3%">Exhibit&nbsp;99&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; UniSource Energy Corporation Press Release, dated November&nbsp;6, 2008

<P align="center" style="font-size: 10pt; text-indent: 3%">&nbsp;

<P align="center" style="font-size: 10pt; display: none">2
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<P align="center" style="font-size: 10pt"><B>SIGNATURES</B>



<P align="left" style="font-size: 10pt; text-indent: 3%">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.


<P align="left" style="font-size: 10pt">Date: November&nbsp;6, 2008



<P align="left" style="margin-left:46%; font-size: 10pt; margin-top: -11pt"><U><B>UNISOURCE ENERGY CORPORATION</B></U>
<BR>
(Registrant)



<P align="left" style="margin-left:46%; font-size: 10pt"><U><B>/</B>s/ Kevin P. Larson&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>
<BR>
Senior Vice President and Principal
<BR>
Financial Officer


<P align="left" style="font-size: 10pt">Date: November&nbsp;6, 2008



<P align="left" style="margin-left:46%; font-size: 10pt; margin-top: -11pt"><U><B>TUCSON ELECTRIC POWER COMPANY</B></U>
<BR>
(Registrant)



<P align="left" style="margin-left:46%; font-size: 10pt"><U><B>/</B>s/ Kevin P. Larson&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>
<BR>
Senior Vice President and Principal
<BR>
Financial Officer

<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt; display: none">3
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<P align="center" style="font-size: 10pt"><B>EXHIBIT INDEX</B>



<P align="left" style="font-size: 10pt">Exhibit&nbsp;99&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; UniSource Energy Corporation Press Release, dated November&nbsp;6, 2008


<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt; display: none">4




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Filed by Bowne Pure Compliance
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): November 6, 2008
UNISOURCE ENERGY CORPORATION
(Exact name of registrant as
specified in its charter)
(An Arizona Corporation)
1-13739
86-0786732
(State or other Jurisdiction of Incorporation)
(Commission File Number)
(IRS Employer Identification No.)
One South Church Avenue, Suite 100
Tucson, AZ
85701
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code:
(520) 571-4000
(Former name or former address if changed since last report.)
TUCSON ELECTRIC POWER COMPANY
(Exact name of registrant as
specified in its charter)
(An Arizona Corporation)
1-5924
86-0062700
(State or other Jurisdiction of Incorporation)
(Commission File Number)
(IRS Employer Identification No.)
One South Church Avenue, Suite 100
Tucson, AZ
85701
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code:
(520) 571-4000
(Former name or former address if changed since last report.)
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
2.02 Results of Operations and Financial Condition
On November 6, 2008, UniSource Energy Corporation ("UniSource Energy") issued a press release announcing earnings
for the quarter ended September 30, 2008 for UniSource Energy and Tucson Electric Power Company.  A copy of the press
release is attached hereto as Exhibit 99.
Item 9.01 Financial Statements and Exhibits
Exhibit 99       UniSource Energy Corporation Press Release, dated November 6, 2008
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: November 6, 2008
UNISOURCE ENERGY CORPORATION
(Registrant)
/
s/ Kevin P. Larson
Senior Vice President and Principal
Financial Officer
Date: November 6, 2008
TUCSON ELECTRIC POWER COMPANY
(Registrant)
/
s/ Kevin P. Larson
Senior Vice President and Principal
Financial Officer
EXHIBIT INDEX
Exhibit 99       UniSource Energy Corporation Press Release, dated November 6, 2008