TransAlta
Corporation
|
(Name of
Issuer)
|
Common
Shares, no par value
|
(Title
of Class of Securities)
|
89346D107
|
(CUSIP
Number)
|
(Name, Address and Telephone
Number of Person Authorized to Receive Notices and
Communications)
|
February
21, 2008
|
(Date
of Event Which Requires Filing of this Statement)
|
CUSIP
No. 89346D107
|
13D
|
Page
2 of 14 Pages
|
1.
|
Names
of Reporting Persons.
LSP
Penn Holdings, LLC
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
WC
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Delaware
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
16,782,400
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
16,782,400
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
16,782,400
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
8.3%
|
||
14.
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No. 89346D107
|
13D
|
Page 3 of
14 Pages
|
1.
|
Names
of Reporting Persons.
LSP
Penn Holdings II, LLC
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
WC
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Delaware
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
16,782,400
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
16,782,400
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
16,782,400
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
8.3%
|
||
14.
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No. 89346D107
|
13D
|
Page 4 of
14 Pages
|
1.
|
Names
of Reporting Persons.
LS
Power Partners, L.P.
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
WC
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Delaware
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
16,782,400
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
16,782,400
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
16,782,400
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
8.3%
|
||
14.
|
Type
of Reporting Person (See Instructions)
PN
|
CUSIP
No. 89346D107
|
13D
|
Page 5 of
14 Pages
|
1.
|
Names
of Reporting Persons.
LS
Power Partners II, L.P.
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
WC
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Delaware
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
16,782,400
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
16,782,400
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
16,782,400
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
8.3%
|
||
14.
|
Type
of Reporting Person (See Instructions)
PN
|
CUSIP
No. 89346D107
|
13D
|
Page 6 of
14 Pages
|
1.
|
Names
of Reporting Persons.
Luminus
Management, LLC
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
WC
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Delaware
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
16,782,400
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
16,782,400
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
16,782,400
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
8.3%
|
||
14.
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No. 89346D107
|
13D
|
Page 7 of
14 Pages
|
1.
|
Names
of Reporting Persons.
Luminus
Asset Partners, L.P.
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
WC
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Delaware
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
16,782,400
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
16,782,400
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
16,782,400
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
8.3%
|
||
14.
|
Type
of Reporting Person (See Instructions)
PN
|
CUSIP
No. 89346D107
|
13D
|
Page 8 of
14 Pages
|
1.
|
Names
of Reporting Persons.
Luminus
Energy Partners Master Fund, Ltd.
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
WC
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Bermuda
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
16,782,400
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
16,782,400
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
16,782,400
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
8.3%
|
||
14.
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No. 89346D107
|
13D
|
Page 9 of
14 Pages
|
1.
|
Names
of Reporting Persons.
LPCO
Investments S.a.r.l.
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
OO
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Luxembourg
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
16,782,400
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
16,782,400
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
16,782,400
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
8.3%
|
||
14.
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No. 89346D107
|
13D
|
Page 10 of
14 Pages
|
1.
|
Names
of Reporting Persons.
LTAC
SPV I, LLC
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)
[ ]
(b) [X]
|
||
3.
|
SEC
USE ONLY
|
||
4.
|
Source
of Funds (See Instructions)
OO
|
||
5.
|
Check
if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or
2(e)
[ ]
|
||
6.
|
Citizenship
or Place of Organization
Delaware
|
||
Number
of
Shares
Beneficially
Owned
by
Each
Reporting
Person
with
|
7.
|
Sole
Voting Power
0
|
|
8.
|
Shared
Voting Power
0
|
||
9.
|
Sole
Dispositive Power
0
|
||
10.
|
Shared
Dispositive Power
0
|
||
11.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
0
|
||
12.
|
Check
if the Aggregate Amount in Row (11) Excludes Certain Shares (See
Instructions)
[ ]
|
||
13.
|
Percent
of Class Represented by Amount in Row (11)
0%
|
||
14.
|
Type
of Reporting Person (See Instructions)
OO
|
CUSIP
No. 89346D107
|
13D
|
Page 11 of
14 Pages
|
CUSIP
No. 89346D107
|
13D
|
Page 12 of
14 Pages
|
Exhibit
Number
|
Description
|
7.9
|
LTAC
SPV I, LLC Limited Liability Company Agreement dated as of February 21,
2008
|
7.10
|
Joint
Filing Agreement, dated February 22, 2008
|
CUSIP
No. 89346D107
|
13D
|
Page 13 of
14 Pages
|
LSP
Penn Holdings, LLC
|
|||
By:
|
/s/ Darpan
Kapadia
|
||
Name:
|
Darpan
Kapadia
|
||
Title:
|
Managing
Director
|
||
LSP
Penn Holdings II, LLC
|
|||
By:
|
/s/ Darpan
Kapadia
|
||
Name:
|
Darpan
Kapadia
|
||
Title:
|
Managing
Director
|
||
LS
Power Partners, L.P.
|
|||
By:
|
/s/ Darpan
Kapadia
|
||
Name:
|
Darpan
Kapadia
|
||
Title:
|
Managing
Director
|
||
LS
Power Partners II, L.P.
|
|||
By:
|
/s/ Darpan
Kapadia
|
||
Name:
|
Darpan
Kapadia
|
||
Title:
|
Managing
Director
|
||
Luminus
Management, LLC
|
|||
By:
|
/s/ Paul
Segal
|
||
Name:
|
Paul
Segal
|
||
Title:
|
President
|
CUSIP
No. 89346D107
|
13D
|
Page 14 of
14 Pages
|
Luminus
Asset Partners, L.P.
|
||||
By:
|
/s/ Paul
Segal
|
|||
Name:
|
Paul
Segal
|
|||
Title:
|
President
|
|||
Luminus
Energy Partners Master Fund, Ltd.
|
||||
By:
|
/s/ Paul
Segal
|
|||
Name:
|
Paul
Segal
|
|||
Title:
|
Director
|
|||
LPCO
Investments S.à.r.l.
|
||||
By: Paul
Segal, as attorney-in-fact
|
||||
By:
|
/s/ Paul
Segal
|
|||
Name:
|
Paul
Segal
|
|||
LTAC
SPV I, LLC
|
||||
By: Vega
Energy GP, LLC, its managing member
|
||||
By:
|
/s/ Paul
Segal
|
|||
Name:
|
Paul
Segal
|
|||
Title:
|
President
|