| **Central                Illinois Light Company****Computation                of Ratios of Earnings to Fixed Charges and Combined****Fixed                Charges and Preferred Stock Dividend Requirements****(Thousands                of Dollars, Except Ratios)** |                              |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------|
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |
|                                                                                                                                                                                                                                                                  | **6                Months Ended** |   |   | **Year                Ended** |   |
|                                                                                                                                                                                                                                                                  | **June                30,**       |   |   | **December                31,** |   |
|                                                                                                                                                                                                                                                                  | **2007**                          |   |   | **2006** |   |
| Net                income from continuing operations                                                                                                                                                                                                                  | $                                 | 47,614 |   |   | $ | 47,012 |   |
| Less-                Change in accounting principle                                                                                                                                                                                                                   |                              | - |   |   |   | - |   |
| Less-                Income from equity investee                                                                                                                                                                                                                      |                              | - |   |   |   | - |   |
| Add-                Taxes based on income                                                                                                                                                                                                                             |                              | 26,484 |   |   |   | 9,966 |   |
| Net                income before income taxes and change in accounting                principle                                                                                                                                                                       |                              | 74,098 |   |   |   | 56,978 |   |
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |   |   |
| Add-                fixed charges:                                                                                                                                                                                                                                    |                              |   |   |   |   |   |   |
| Interest                on long term debt                                                                                                                                                                                                                             |                              | 11,225 |   |   |   | 18,044 |   |
| Estimated                interest cost within rental expense                                                                                                                                                                                                          |                              | 172 |   |   |   | 289 |   |
| Amortization                of net debt premium, discount,     and                expenses                                                                                                                                                   |                              | 519 |   |   |   | 705 |   |
| Total                fixed charges                                                                                                                                                                                                                                    |                              | 11,916 |   |   |   | 19,038 |   |
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |   |   |
| Earnings                available for fixed charges                                                                                                                                                                                                                   |                              | 86,014 |   |   |   | 76,016 |   |
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |   |   |
| Ratio                of earnings to fixed charges                                                                                                                                                                                                                     |                              | 7.21 |   |   |   | 3.99 |   |
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |   |   |
| Earnings                required for combined fixedcharges                and preferred stock dividends:                                                                                                                                                              |                              |   |   |   |   |
| Preferred                stock dividends                                                                                                                                                                                                                              |                              | 951 |   |   |   | 1,933 |   |
| Adjustment                to pre-tax basis                                                                                                                                                                                                                            |                              | 529 |   |   |   | 410 |   |
|                                                                                                                                                                                                                                                                  |                              | 1,480 |   |   |   | 2,343 |   |
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |   |   |
| Combined                fixed charges and preferred stockdividend                requirements                                                                                                                                                                         | $                                 | 13,396 |   |   | $ | 21,381 |   |
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |   |   |
| Ratio                of earnings to combined fixed chargesand                preferred stock dividend requirements                                                                                                                                                    |                              | 6.42 |   |   |   | 3.55 |   |
|                                                                                                                                                                                                                                                                  |                              |   |   |   |   |   |   |