Exhibit 12.5

CILCORP INC.
Computation of Ratio of Earnings to Fixed Charges
(Thousands of Dollars, Except Ratios)

	1/01/03		1/31/03
	Thru		Thru		Year Ended December 31,
	1/30/03(1)		12/31/03(1)		2004			2005			2006			2007
Net income from continuing operations	$	9,203	$	14,400	$	10,367		$	3,222		$	21,004		$	149,402
Less - Change in accounting principle		3,818		-		-			(2,497	)		-			-
Add - Taxes (benefit) based on income		2,922		5,946		(8,526	)		(3,164	)		(10,944	)		21,018
Net income before income taxes and change in accounting principle		8,307		20,346		1,841			2,555			10,060			70,420
Add - fixed charges:
Interest on long-term debt		5,035		48,899		51,992			50,562			51,574			62,824	(2)
Estimated interest cost within rental expense		87		1,398		395			390			289			343
Amortization of net debt premium, discount, and expenses		168		862		767			693			801			1,322
Subsidiary preferred stock dividends		180		1,947		2,062			1,988			1,933			1,869
Adjust preferred stock dividends to pretax basis		103		1,114		346			1,293			(1,007	)		812
Total fixed charges		5,573		54,220		55,562			54,926			53,590			67,170
Less: Adjustment of preferred stock dividends to pretax basis		103		1,114		346			1,293			(1,007	)		812
Earnings available for fixed charges	$	13,777	$	73,452	$	57,057		$	56,188		$	64,657		$	136,778
Ratio of earnings to fixed charges		2.47		1.35		1.02			1.02			1.20			2.03

(1)	Ameren Corporation purchased CILCORP Inc. and subsidiaries on January 31, 2003.
(2)	Includes FIN 48 interest expense