| Illinois      Power CompanyComputation      of Ratios of Earnings to Fixed Charges and CombinedFixed      Charges and Preferred Stock Dividend Requirements(Thousands      of Dollars, Except Ratios) |                |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------|
|                                                                                                                                                                                                  |                |   |   |   |   |
|                                                                                                                                                                                                  |                |   |   |   |   |
|                                                                                                                                                                                                  | 3      Months Ended |   | Year      Ended |   |
|                                                                                                                                                                                                  | March      31,      |   |   | December      31, |   |
|                                                                                                                                                                                                  | 2008                |   |   | 2007 |   |
| Net      income from continuing operations                                                                                                                                                            | $                   | 2,631 |   |   | $ | 25,780 |   |
| Add-      Taxes based on income                                                                                                                                                                       |                | 1,821 |   |   |   | 15,341 |   |
| Net      income before income taxes                                                                                                                                                                   |                | 4,452 |   |   |   | 41,121 |   |
|                                                                                                                                                                                                  |                |   |   |   |   |   |   |
| Add-      fixed charges:                                                                                                                                                                              |                |   |   |   |   |   |   |
| Interest on long term      debt  (1)                                                                                                                                                        |                | 21,804 |   |   |   | 69,085 |   |
| Estimated      interest cost within rental expense                                                                                                                                                    |                | 85 |   |   |   | 234 |   |
| Amortization      of net debt premium, discount,     expenses      and losses                                                                                                |                | 2,189 |   |   |   | 8,454 |   |
| Total      fixed charges                                                                                                                                                                              |                | 24,078 |   |   |   | 77,773 |   |
|                                                                                                                                                                                                  |                |   |   |   |   |   |   |
| Earnings      available for fixed charges                                                                                                                                                             |                | 28,530 |   |   |   | 118,894 |   |
|                                                                                                                                                                                                  |                |   |   |   |   |   |   |
| Ratio      of earnings to fixed charges                                                                                                                                                               |                | 1.18 |   |   |   | 1.52 |   |
|                                                                                                                                                                                                  |                |   |   |   |   |   |   |
| Earnings      required for combined fixedcharges      and preferred stock dividends:                                                                                                                  |                |   |   |   |
| Preferred      stock dividends                                                                                                                                                                        |                | 574 |   |   |   | 2,294 |   |
| Adjustment      to pre-tax basis                                                                                                                                                                      |                | 397 |   |   |   | 1,365 |   |
|                                                                                                                                                                                                  |                | 971 |   |   |   | 3,659 |   |
|                                                                                                                                                                                                  |                |   |   |   |   |   |   |
| Combined      fixed charges and preferred stock     dividend      requirements                                                                                               | $                   | 25,049 |   |   | $ | 81,432 |   |
|                                                                                                                                                                                                  |                |   |   |   |   |   |   |
| Ratio      of earnings to combined fixed charges     and      preferred stock dividend requirements                                                                          |                | 1.13 |   |   |   | 1.46 |   |
|                                                                                                                                                                                                  |                |   |   |   |   |   |   |