EXHIBIT 99.4
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PPL ENERGY SUPPLY AND SUBSIDIARIES
UNAUDITED PRO FORMA CONSOLIDATED INFORMATION
--------------------------------------------

The pro forma information that follows is presented to give effect to the
acquisition of Mirant Corporation's 49% indirect equity interest in Western
Power Distribution Holdings Limited and WPD Investment Holdings Limited
(together, "WPD") on the income statements of PPL Energy Supply. The pro forma
results are based on assumptions set forth below, as well as in the Notes to
Unaudited Pro Forma Consolidated Financial Information, and are not necessarily
indicative of the results of operations which would actually have occurred if
the transactions had occurred in such periods, or which may exist or occur in
the future.

The WPD acquisition is described in Item 2 of this Current Report on Form 8-K/A,
of which this Exhibit 99.4 is a part. The acquisition was completed on September
6, 2002.

Pro forma adjustments are provided to the consolidated income statements of PPL
Energy Supply for the nine months ended September 30, 2002, and for the twelve
months ended December 31, 2001. The adjustments are to the income statements
filed in PPL Energy Supply's Quarterly Report on Form 10-Q for the quarter ended
September 30, 2002, and in its Annual Report on Form 10-K for the year ended
December 31, 2001. The pro forma adjustments assume that the acquisition was
consummated at the beginning of the income statement periods.

The PPL Energy Supply pro forma income statement for the nine months ended
September 30, 2002 includes the operating results of WPD for the nine months
ended August 31, 2002. The PPL Energy Supply pro forma income statement for the
twelve months ended December 31, 2001 includes the operating results of WPD for
the twelve months ended November 30, 2001. This treatment is consistent with PPL
Energy Supply's policy of recording results of its international operations on a
lag basis.

The September 30, 2002 Balance Sheet filed in PPL Energy Supply's Quarterly
Report on Form 10-Q for the quarter ended September 30, 2002 included the
consolidation of the accounts of WPD. Because the accounts have already been
consolidated, there is no presentation of a pro forma balance sheet in this
Current Report on Form 8-K/A.

The Notes to Unaudited Pro Forma Consolidated Financial Information provide
additional descriptions of the adjustments to the income statements. The pro
forma financial information should be read in conjunction with the reports of
PPL Energy Supply as noted above, as well as the audited financial statements of
Western Power Distribution Holdings Limited and WPD Investment Holdings Limited
for the year ended March 31, 2002. These financial statements are included
as Exhibit 99.1 and Exhibit 99.2 in this Current Report on Form 8-K/A.

PPL ENERGY SUPPLY, LLC AND SUBSIDIARIES
UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF INCOME
FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2002
(Millions of Dollars)

PRO FORMA NOTE
AS REPORTED ADJUSTMENTS REF AS ADJUSTED
----------- ----------- ---- -----------

OPERATING REVENUES
Wholesale energy marketing................................ $ 693 $ 693
Wholesale energy marketing to affiliates.................. 1,081 1,081
Utility................................................... 755 755
Unregulated retail electric and gas....................... 137 137
Net energy trading margins................................ 21 21
Energy related businesses................................. 423 423
-------- -------- --------
Total..................................................... 3,110 3,110
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OPERATING EXPENSES
Operation
Fuel.................................................... 376 376
Energy purchases........................................ 443 443
Energy purchases from affiliates........................ 129 129
Other operation and maintenance......................... 600 600
Transmission............................................ 18 18
Depreciation.............................................. 194 194
Taxes, other than income.................................. 60 60
Energy related businesses................................. 402 402
Other charges
Write-down of international energy projects............. 100 100
Workforce reduction..................................... 41 41
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Total..................................................... 2,363 2,363
-------- -------- --------

OPERATING INCOME............................................ 747 747
Other Income - net.......................................... 28 28
Interest Expense............................................ 160 $ 4 1) 164
Interest Expense with Affiliate............................. 2 2
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INCOME BEFORE INCOME TAXES AND MINORITY INTEREST............ 613 (4) 609
Income Taxes................................................ 236 2) 236
Minority Interest........................................... 76 (72) 3) 4
-------- -------- --------

INCOME BEFORE DISTRIBUTIONS ON PREFERRED SECURITIES......... 301 68 369

Distributions - Preferred Securities........................ 6 6
-------- -------- --------

INCOME FROM CONTINUING OPERATIONS........................... $ 295 $ 68 $ 363
======== ======== ========

See Notes to Unaudited Pro Forma Consolidated Financial Information

PPL ENERGY SUPPLY, LLC AND SUBSIDIARIES
UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF INCOME
FOR THE YEAR ENDED DECEMBER 31, 2001
(Millions of Dollars)

PRO FORMA NOTE
AS REPORTED ADJUSTMENTS REF AS ADJUSTED
----------- ----------- ---- -----------

OPERATING REVENUES
Wholesale energy marketing and trading.................... $ 3,010 $ 550 4) $ 3,560
Retail electric and gas................................... 764 764
Energy related businesses................................. 501 40 4) 541
Equity in earnings of unconsolidated affiliates........... 127 (91) 5) 36
-------- -------- --------
Total..................................................... 4,402 499 4,901
-------- -------- --------
OPERATING EXPENSES
Operation
Fuel.................................................... 500 500
Energy purchases........................................ 1,491 1,491
Other operation and maintenance......................... 758 90 4) 848
Transmission............................................ 52 52
Depreciation.............................................. 157 105 4) 262
Taxes, other than income.................................. 38 39 4) 77
Project development....................................... 30 30
Energy related businesses................................. 468 6 4) 474
Other charges
Write-down of international energy projects............. 336 336
Cancellation of generation projects..................... 150 150
-------- -------- --------
Total..................................................... 3,980 240 4,220
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OPERATING INCOME............................................ 422 259 681
Other Income - net.......................................... 68 26 4) 94
-------- -------- --------

INCOME BEFORE INTEREST EXPENSE.............................. 490 285 775
Interest Expense............................................ 47 139 1) 186
-------- -------- --------

INCOME BEFORE INCOME TAXES AND MINORITY INTEREST............ 443 146 589
Income Taxes................................................ 274 79 2) 353
Minority Interest........................................... (2) (2)
-------- -------- --------

INCOME BEFORE DISTRIBUTIONS ON PREFERRED SECURITIES......... 171 67 238

Distributions - Preferred Securities........................ 7 4) 7
-------- -------- --------

INCOME FROM CONTINUING OPERATIONS........................... $ 171 $ 60 $ 231
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See Notes to Unaudited Pro Forma Consolidated Financial Information

PPL ENERGY SUPPLY, LLC AND SUBSIDIARIES
NOTES TO UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL INFORMATION

INCOME STATEMENT ADJUSTMENTS:
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1) The cost of the WPD acquisition, $236 million, was financed through
commercial paper issued by an affiliate of PPL Energy Supply. For purposes
of calculating the pro forma information, an interest rate of 2.0% and 4.3%
were assumed for the nine months ended September 30, 2002 and for the
twelve months ended December 31, 2001, respectively. The twelve-month
period also includes $129 million of the interest expense included in WPD's
results.

2) Giving effect to the acquisition of Mirant's interest in WPD as of the
beginning of the periods, U.S. income taxes were not provided on
undistributed earnings of WPD as such earnings are deemed permanently
reinvested. The pro forma results reflect the incremental U.S. income taxes
that would have been payable with respect to WPD had a tax return for those
periods been prepared, offset by the U.S. federal income tax benefit of the
interest expense incurred on commercial paper borrowings. The incremental
U.S. income taxes associated with the additional earnings from WPD were
$1 million for the nine months ended September 30, 2002 and $20 million for
the year ended December 31, 2001.

3) The September 30, 2002 Income Statement filed in PPL Energy Supply's Form
10-Q provided for the consolidation of WPD's results of operations as of
January 1, 2002. The minority interest account represented Mirant's 49%
interest in WPD. This proforma adjustment is made to reverse Mirant's share
of WPD earnings, thereby, reflecting PPL Energy Supply's 100% ownership of
WPD.

4) Represents WPD's U.S. GAAP results for the twelve months ended November 30,
2001. An average interbank exchange rate of 1.4799 was assumed for the
period.

5) PPL Energy Supply's equity earnings in WPD of $91 million prior to the
acquisition.