EXHIBIT 12

ALLEGHENY ENERGY, INC. AND SUBSIDIARIES

COMPUTATION IN SUPPORT OF RATIO OF EARNINGS TO FIXED
CHARGES



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|------------------------------------------------------------------------ |  | ------------------------ | ------- | - | ---- | - | ------- | ---- |  | - | ------- | - |  | ---- | ------- | - |  | - | -------- | -
|                                                                         |  | Years Ended December 31, |        
|(Dollar amounts in thousands)                                            |  | 2007                     |         |   | 2006 |   |         | 2005 |  |   | 2004    |   |  | 2003 |        
|Earnings (Losses):                                                       |  |                          |         |   |      |   |         |      |  |   |         |   |  |      |         |   |  |   |          |  
|Income (loss) from continuing operations                                 |  | $                        | 412,214 |   |      | $ | 318,735 |      |  | $ | 75,145  |   |  | $    | 129,732 |   |  | $ | (308,875 | )
|Exclude amounts reflected in line above:                                 |  |                          |         |   |      |   |         |      |  |   |         |   |  |      |         |   |  |   |          |  
|Income tax expense (benefit)                                             |  |                          | 250,805 |   |      |   | 173,543 |      |  |   | 64,771  |   |  |      | 79,669  |   |  |   | (202,170 | )
|Minority interest in income (loss) of subsidiaries                       |  |                          | 3,121   |   |      |   | 2,562   |      |  |   | 587     |   |  |      | (882    | ) |  |   | (7,174   | )
|Preferred dividends of subsidiary                                        |  |                          | 700     |   |      |   | 1,172   |      |  |   | 4,071   |   |  |      | 5,037   |   |  |   | 5,037    |  
|Amortization of capitalized interest                                     |  |                          | 1,923   |   |      |   | 1,644   |      |  |   | 2,695   |   |  |      | 2,288   |   |  |   | 1,592    |  
|Loss (income) from unconsolidated equity investees                       |  |                          | (334    | ) |      |   | (325    | )    |  |   | 770     |   |  |      | 663     |   |  |   | 948      |  
|Add fixed charges (see below)                                            |  |                          | 216,835 |   |      |   | 286,769 |      |  |   | 453,559 |   |  |      | 419,448 |   |  |   | 454,461  |  
|Less amounts included in fixed charges:                                  |  |                          |         |   |      |   |         |      |  |   |         |   |  |      |         |   |  |   |          |  
|Capitalized interest                                                     |  |                          | (20,028 | ) |      |   | (6,943  | )    |  |   | (3,065  | ) |  |      | (3,432  | ) |  |   | (15,394  | )
|Preference security dividend requirements of consolidated subsidiary (a) |  |                          | (1,123  | ) |      |   | (1,739  | )    |  |   | (7,284  | ) |  |      | (7,967  | ) |  |   | (8,233   | )
|                                                                         |  |                          |         |   |      |   |         |      |  |   |         |   |  |      |         |   |  |   |          |  
|Total Earnings (Losses) (as defined)                                     |  | $                        | 864,113 |   |      | $ | 775,418 |      |  | $ | 591,249 |   |  | $    | 624,556 |   |  | $ | (79,808  | )
|                                                                         |  |                          |         |   |      |   |         |      |  |   |         |   |  |      |         |   |  |   |          |  
|Fixed charges:                                                           |  |                          |         |   |      |   |         |      |  |   |         |   |  |      |         |   |  |   |          |  
|Interest expensed and capitalized                                        |  | $                        | 211,129 |   |      | $ | 280,483 |      |  | $ | 440,787 |   |  | $    | 404,505 |   |  | $ | 439,482  |  
|Estimated interest component of rental expense                           |  |                          | 4,584   |   |      |   | 4,547   |      |  |   | 5,488   |   |  |      | 6,976   |   |  |   | 6,746    |  
|Preference security dividend requirements of consolidated subsidiary (a) |  |                          | 1,123   |   |      |   | 1,739   |      |  |   | 7,284   |   |  |      | 7,967   |   |  |   | 8,233    |  
|                                                                         |  |                          |         |   |      |   |         |      |  |   |         |   |  |      |         |   |  |   |          |  
|Total Fixed Charges (as defined)                                         |  | $                        | 216,836 |   |      | $ | 286,769 |      |  | $ | 453,559 |   |  | $    | 419,448 |   |  | $ | 454,461  |  
|                                                                         |  |                          |         |   |      |   |         |      |  |   |         |   |  |      |         |   |  |   |          |  
|Ratio of Earnings to Fixed Charges (b)                                   |  |                          | 3.99x   |   |      |   | 2.70x   |      |  |   | 1.30x   |   |  |      | 1.49x   |   |  |   | (c       | )
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|(a) | The preference security dividend requirement represents the amount of pre-tax earnings required to pay the dividends on outstanding preference securities.
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|(b) | The ratio of earnings to fixed charges for the year ended December 31, 2007 excludes $0.5 million of interest on uncertain tax positions, which was recorded as a component of
income tax expense.
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|(c) | For the year ended December 31, 2003, there are deficiencies of earnings to cover fixed charges of $534,269.
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