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

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

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

<P style="font-size: 10pt" align="center"><B>Date of Report (Date of earliest
event reported): December 9, 2008</B>


<P style="font-size: 24pt" align="center"><B>UNISOURCE ENERGY CORPORATION</B> <FONT
style="font-size: 10pt"><BR>(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>Arizona</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 style="font-size: 24pt" align="center"><B>TUCSON ELECTRIC POWER COMPANY</B> <FONT
style="font-size: 10pt"><BR>(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>Arizona</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 style="font-size: 10pt" align="left">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 style="font-size: 10pt" align="left"><FONT face="Wingdings">o</FONT> Written
communications pursuant to Rule 425 under the Securities Act (17 CFR
230.425)<BR>
<BR>
<FONT face="Wingdings">o</FONT> Soliciting material pursuant
to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<BR>
<BR>
<FONT
face="Wingdings">o</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">o</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 style="font-size: 10pt" align="center">&nbsp;

<P style="display: none; font-size: 10pt" align="center">1
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style="margin-left: 0.25in; width: 7.2in; font-family: 'Times New Roman',Times,serif">

<P style="font-size: 10pt" align="justify"><U><B>Item&nbsp;5.02. Departure of
Directors or Certain Officers; Election of Directors; Appointment of Certain
Officers; Compensatory Arrangements of Certain Officers.</B></U>

<P style="font-size: 10pt" align="justify">On December 9, 2008, the Board of
Directors of UniSource Energy Corporation (UniSource Energy) and Tucson
Electric Power Company (TEP)&nbsp;appointed Paul J. Bonavia, 57, as Chairman of
the Board, President and Chief Executive Officer of UniSource Energy and TEP.
The appointment will be effective January&nbsp;1, 2009, upon the retirement of
James S. Pignatelli.

<P style="font-size: 10pt" align="justify">Mr.&nbsp;Bonavia has served as
President of the Utilities Group of Xcel Energy Inc. since November&nbsp;2005.
From December&nbsp;2003 to October&nbsp;2005, he served as President of Xcel
Energy&#8217;s Commercial Enterprises Business Unit and from August&nbsp;2000
to December&nbsp;2003 he served as President of Xcel Energy&#8217;s Energy
Markets Business Unit.

<P style="font-size: 10pt" align="justify">Mr.&nbsp;Bonavia&#8217;s initial
annual base salary will be $600,000. Mr.&nbsp;Bonavia will participate in
UniSource Energy&#8217;s annual cash incentive compensation program with a
target award for 2009 of 80% of base salary and a maximum award equal to 120%
of base salary. He will participate in UniSource Energy&#8217;s Omnibus Stock
and Incentive Plan, a long-term equity incentive plan, with award opportunities
to be granted at a future date. Mr.&nbsp;Bonavia will be entitled to severance
pay of 200% of his base salary, plus pro rata incentive compensation, if his
employment is terminated by UniSource Energy without cause or if he terminates
his employment for good reason within three years of his employment.
Mr.&nbsp;Bonavia will be entitled to a severance payment of 200% of the sum of
base salary and bonus, plus pro rata incentive compensation, if UniSource
Energy terminates his employment without cause or if he terminates employment
for good reason within 24&nbsp;months of a change in control. For a period of
twelve months following the termination of his employment, Mr.&nbsp;Bonavia
will be subject to non-competition and non-solicitation restrictions.

<P style="font-size: 10pt" align="justify">Mr.&nbsp;Bonavia&#8217;s employment
arrangements are summarized in an employment letter, which is filed as
Exhibit&nbsp;10.1 hereto. This summary of the employment letter is qualified in
its entirety by reference to the actual employment letter. An employment
agreement and change of control agreement will be prepared based upon the terms
described in the employment letter. The employment agreement will have a term
of three years.

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

<P style="font-size: 10pt" align="justify"><B>(d)&nbsp;Exhibits</B>

<P style="font-size: 10pt" align="justify">10.1 Letter of Employment between
UniSource Energy and Paul J. Bonavia

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

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

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


<DIV align="center">
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  <TD width="60%">&nbsp;</TD>
  <TD width="40%">&nbsp;</TD>
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 <TR style="font-size: 10pt" valign="bottom">
  <TD align="left">Date: December 15, 2008</TD>
  <TD align="left" style="border-bottom: 1px solid #000000"><B>UNISOURCE ENERGY CORPORATION</B></TD>
 </TR>

 <TR style="font-size: 10pt" valign="bottom">
  <TD>&nbsp;</TD>
  <TD align="left">(Registrant)</TD>
 </TR>


<TR><TD>&nbsp;</TD></TR>

 <TR style="font-size: 10pt" valign="bottom">
  <TD>&nbsp;</TD>
  <TD align="left" style="border-bottom: 1px solid #000000">/ s / Kevin P. Larson</TD>
 </TR>

 <TR valign="bottom">
  <TD>&nbsp;</TD>
  <TD valign="top" align="left">Senior Vice President and Chief Financial Officer</TD>
 </TR>


<TR><TD>&nbsp;</TD></TR>

 <TR valign="bottom">
  <TD valign="top" align="left">Date: December&nbsp;15, 2008</TD>
  <TD valign="top" align="left" style="border-bottom: 1px solid #000000"><B>TUCSON ELECTRIC POWER COMPANY</B></TD>
 </TR>

 <TR style="font-size: 10pt" valign="bottom">
  <TD>&nbsp;</TD>
  <TD align="left">(Registrant)</TD>
 </TR>


<TR><TD>&nbsp;</TD></TR>

 <TR style="font-size: 10pt" valign="bottom">
  <TD>&nbsp;</TD>
  <TD align="left" style="border-bottom: 1px solid #000000">/ s / Kevin P. Larson</TD>
 </TR>

 <TR valign="bottom">
  <TD>&nbsp;</TD>
  <TD align="left">Senior Vice President and Chief Financial Officer</TD>
 </TR>

</TABLE>
</DIV>

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

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

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" cellpadding="0" width="100%" border="0">
<!-- Begin Table Head -->

 <TR valign="bottom">
  <TD width="8%">&nbsp;</TD>
  <TD width="5%">&nbsp;</TD>
  <TD width="87%">&nbsp;</TD>
 </TR>


 <TR style="font-size: 10pt" valign="bottom">
  <TD align="left" style="border-bottom: 1px solid #000000"><B>Exhibit<BR>Number</B></TD>
  <TD>&nbsp;</TD>
  <TD align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
 </TR>


 <TR valign="bottom">
  <TD align="left">10.1</TD>
  <TD>&nbsp;</TD>
  <TD align="left">Letter of Employment between UniSource Energy and Paul J. Bonavia</TD>
</TR>
</TABLE>
</DIV>

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

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



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</HTML>
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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): December 9, 2008
UNISOURCE ENERGY CORPORATION
(Exact name of registrant as specified in its charter)
Arizona
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)
Arizona
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 5.02. Departure of
Directors or Certain Officers; Election of Directors; Appointment of Certain
Officers; Compensatory Arrangements of Certain Officers.
On December 9, 2008, the Board of
Directors of UniSource Energy Corporation (UniSource Energy) and Tucson
Electric Power Company (TEP) appointed Paul J. Bonavia, 57, as Chairman of
the Board, President and Chief Executive Officer of UniSource Energy and TEP.
The appointment will be effective January 1, 2009, upon the retirement of
James S. Pignatelli.
Mr. Bonavia has served as
President of the Utilities Group of Xcel Energy Inc. since November 2005.
From December 2003 to October 2005, he served as President of Xcel
Energy's Commercial Enterprises Business Unit and from August 2000
to December 2003 he served as President of Xcel Energy's Energy
Markets Business Unit.
Mr. Bonavia's initial
annual base salary will be $600,000. Mr. Bonavia will participate in
UniSource Energy's annual cash incentive compensation program with a
target award for 2009 of 80% of base salary and a maximum award equal to 120%
of base salary. He will participate in UniSource Energy's Omnibus Stock
and Incentive Plan, a long-term equity incentive plan, with award opportunities
to be granted at a future date. Mr. Bonavia will be entitled to severance
pay of 200% of his base salary, plus pro rata incentive compensation, if his
employment is terminated by UniSource Energy without cause or if he terminates
his employment for good reason within three years of his employment.
Mr. Bonavia will be entitled to a severance payment of 200% of the sum of
base salary and bonus, plus pro rata incentive compensation, if UniSource
Energy terminates his employment without cause or if he terminates employment
for good reason within 24 months of a change in control. For a period of
twelve months following the termination of his employment, Mr. Bonavia
will be subject to non-competition and non-solicitation restrictions.
Mr. Bonavia's employment
arrangements are summarized in an employment letter, which is filed as
Exhibit 10.1 hereto. This summary of the employment letter is qualified in
its entirety by reference to the actual employment letter. An employment
agreement and change of control agreement will be prepared based upon the terms
described in the employment letter. The employment agreement will have a term
of three years.
Item 9.01. Financial
Statements and Exhibits
(d) Exhibits
10.1 Letter of Employment between
UniSource Energy and Paul J. Bonavia
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: December 15, 2008
UNISOURCE ENERGY CORPORATION
(Registrant)
/ s / Kevin P. Larson
Senior Vice President and Chief Financial Officer
Date: December 15, 2008
TUCSON ELECTRIC POWER COMPANY
(Registrant)
/ s / Kevin P. Larson
Senior Vice President and Chief Financial Officer
EXHIBIT INDEX
Exhibit
Number
Description
10.1
Letter of Employment between UniSource Energy and Paul J. Bonavia