| CILCORP      INC.Computation      of Ratio of Earnings to Fixed Charges(Thousands      of Dollars, Except Ratios) |
|-------------------------------------------------------------------------------------------------------------------|
|                                                                                                              |   |   |   |
|                                                                                                              |   |   |   |
|                                                                                                              | 9      Months Ended  |   | Year      Ended  |
|                                                                                                              | September      30, |   | December      31, |
|                                                                                                              |  2008 |   | 2007 |
| Net      income from continuing operations                                                                        |  $  41,916 |   |  $  49,402 |
| Add-      Taxes based on income                                                                              |                19,526 |   |                21,018 |
|                                                                                                              |   |   |   |
| Net      income before income taxes                                                                               | 61,442 |   | 70,420 |
|                                                                                                              |   |   |   |
| Add-      fixed charges:                                                                                          |   |   |   |
| Interest on long term      debt  (1)                                                                    | 40,022 |   | 62,824 |
| Estimated      interest cost within rental expense                                                                | 270 |   | 343 |
| Amortization      of net debt premium, discount,and      expenses                                                 | 1,050 |   | 1,322 |
| Subsidiary      preferred stock dividends                                                                         | 1,136 |   | 1,869 |
| Adjust      preferred stock dividends to pre-taxbasis                                                             |                         515 |   |                     812 |
| Total      fixed charges                                                                                          |                42,993 |   |                67,170 |
|                                                                                                              |   |   |   |
| Less:      Adjustment of preferred stock dividends to pre-tax basis                                               | 515 |   | 812 |
|                                                                                                              |   |   |   |
| Earnings      available for fixed charges                                                                         |  $  103,920 |   |  $  136,778 |
|                                                                                                              |   |   |   |
| Ratio      of earnings to fixed charges                                                                           | 2.41 |   | 2.03 |