Exhibit 12.3

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)
	Three Months Ended March 31, 2006
Net income from continuing operations	$	17,659
Add- Taxes based on income		8,956
Net income before income taxes		26,615
Add- fixed charges:
Interest on long term debt		3,849
Estimated interest cost within rental expense		64
Amortization of net debt premium, discount, and expenses		114
Total fixed charges		4,027
Earnings available for fixed charges		30,642
Ratio of earnings to fixed charges		7.60
Earnings required for combined fixed charges and preferred stock dividends:
Preferred stock dividends		491
Adjustment to pre-tax basis		249
		740
Combined fixed charges and preferred stock dividend requirements	$	4,767
Ratio of earnings to combined fixed charges and preferred stock dividend requirements		6.42