Exhibit 12.5

CILCORP INC.

Computation of Ratio of Earnings to Fixed Charges

(Thousands of Dollars, Except Ratios)

	Year Ended December 31,				1/01/03 Thru 1/30/03(1)		1/31/03 Thru 12/31/03(1)		Year Ended December 31,
	2001		2002						2004			2005
Net income from continuing operations	$	25,428	$	24,658	$	9,203	$	14,400	$	10,367		$	3,222
Less- Change in accounting principle		-		-		3,818		-		-			(2,497	)
Add- Taxes based on income (benefit)		22,182		6,841		2,922		5,946		(8,526	)		(3,164	)
Net income before income taxes and change in accounting principle		47,610		31,499		8,307		20,346		1,841			2,555
Add- fixed charges:
Interest on long term debt		74,710		71,407		5,035		48,899		51,992			50,562
Estimated interest cost within rental expense		979		1,619		87		1,398		395			390
Amortization of net debt premium, discount, and expenses		-		-		168		862		767			693
Subsidiary preferred stock dividends		2,159		2,159		180		1,947		2,062			1,988
Adjust preferred stock dividends to pre-tax basis		1,420		1,420		103		1,114		346			1,293
Total fixed charges		79,268		76,605		5,573		54,220		55,562			54,926
Less: Adjustment of preferred stock dividends to pre-tax basis		1,420		1,420		103		1,114		346			1,293
Earnings available for fixed charges		125,458		106,684		13,777		73,452		57,057			56,188
Ratio of earnings to fixed charges		1.58		1.39		2.47		1.35		1.02			1.02

⁽¹⁾ Ameren Corporation purchased CILCORP Inc. and subsidiaries on January 31, 2003.