Exhibit 12.5

Central Illinois Light Company

Computation of Ratio of Earnings to Fixed Charges and Combined

Fixed Charges and Preferred Stock Dividend Requirements

(Thousands of Dollars, Except Ratios)

	Year Ended December 31,
	2005			2006		2007			2008			2009
Net income from continuing operations	$	25,296		$	47,012	$	75,984		$	69,638		$	135,102
Less- Change in accounting standard		(2,497	)		—		—			—			—
Add- Taxes based on income		16,357			9,966		39,195			38,673			71,980
Net income before income taxes and change in accounting standard		44,150			56,978		115,179			108,311			207,082
Add- fixed charges:
Interest on short-term and long-term debt		13,918			18,044		26,071	(1)		19,724	(1)		39,981	(1)
Estimated interest cost within rental expense		390			289		343			429			966
Amortization of net debt premium, discount, and expenses		473			705		1,065			1,112			1,227
Total fixed charges		14,781			19,038		27,479			21,265			42,174
Earnings available for fixed charges		58,931			76,016		142,658			129,576			249,256
Ratio of earnings to fixed charges		3.98			3.99		5.19			6.09			5.91
Earnings required for combined fixed charges and preferred stock dividends:
Preferred stock dividends		1,998			1,933		1,869			1,354			872
Adjustment to pretax basis		1,293			410		977			752			464
		3,291			2,343		2,846			2,106			1,336
Combined fixed charges and preferred stock dividend requirements	$	18,072		$	21,381	$	30,325		$	23,371		$	43,510
Ratio of earnings to combined fixed charges and preferred stock dividend requirements		3.26			3.55		4.70			5.54			5.72

⁽¹⁾ Includes FIN 48 interest expense