**Exhibit      12.6**

| **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)** |                                |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------|
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |
|                                                                                                                                                                                                                                                                          | **9                  Months Ended** |   |   | **Year                  Ended** |   |
|                                                                                                                                                                                                                                                                          | **September                  30,**  |   |   | **December                  31,** |   |
|                                                                                                                                                                                                                                                                          | **2007**                            |   |   | **2006** |   |
| Net                  income from continuing operations                                                                                                                                                                                                                        | $                                   | 58,413 |   |   | $ | 47,012 |   |
| Less-                  Change in accounting principle                                                                                                                                                                                                                         |                                | - |   |   |   | - |   |
| Less-                  Income from equity investee                                                                                                                                                                                                                            |                                | - |   |   |   | - |   |
| Add-                  Taxes based on income                                                                                                                                                                                                                                   |                                | 32,919 |   |   |   | 9,966 |   |
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |   |   |
| Net                  income before income taxes and change in accounting                  principle                                                                                                                                                                           |                                | 91,332 |   |   |   | 56,978 |   |
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |   |   |
| Add-                  fixed charges:                                                                                                                                                                                                                                          |                                |   |   |   |   |   |   |
| Interest                  on long term debt                                                                                                                                                                                                                                   |                                | 18,800 | (1) |   |   | 18,044 |   |
| Estimated                  interest cost within rental expense                                                                                                                                                                                                                |                                | 260 |   |   |   | 289 |   |
| Amortization                  of net debt premium, discount,and                  expenses                                                                                                                                                                                     |                                | 789 |   |   |   | 705 |   |
| Total                  fixed charges                                                                                                                                                                                                                                          |                                | 19,849 |   |   |   | 19,038 |   |
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |   |   |
| Earnings                  available for fixed charges                                                                                                                                                                                                                         |                                | 111,181 |   |   |   | 76,016 |   |
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |   |   |
| Ratio                  of earnings to fixed charges                                                                                                                                                                                                                           |                                | 5.60 |   |   |   | 3.99 |   |
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |   |   |
| Earnings                  required for combined fixedcharges                  and preferred stock dividends:                                                                                                                                                                  |                                |   |   |   |   |
| Preferred                  stock dividends                                                                                                                                                                                                                                    |                                | 1,410 |   |   |   | 1,933 |   |
| Adjustment                  to pre-tax basis                                                                                                                                                                                                                                  |                                | 795 |   |   |   | 410 |   |
|                                                                                                                                                                                                                                                                          |                                | 2,205 |   |   |   | 2,343 |   |
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |   |   |
| Combined                  fixed charges and preferred stockdividend                  requirements                                                                                                                                                                             | $                                   | 22,054 |   |   | $ | 21,381 |   |
|                                                                                                                                                                                                                                                                          |                                |   |   |   |   |   |   |
| Ratio                  of earnings to combined fixed chargesand                  preferred stock dividend requirements                                                                                                                                                        |                                | 5.04 |   |   |   | 3.55 |   |