Exhibit 12.4

Ameren Energy Generating Company

Computation of Ratio of Earnings to Fixed Charges

(Thousands of Dollars, Except Ratios)

	Three Months Ended March 31, 2011		Year Ended December 31, 2010
Net income (loss) from continuing operations attributable to Ameren Energy Generating Company	$	21,010	$	(38,573	)
Add- Net income attributable to noncontrolling interest		1,242		3,366
Add- Taxes based on income		15,775		19,422
Net income (loss) before income taxes and noncontrolling interest		38,027		(15,785	)
Add- fixed charges:
Interest on short-term and long-term debt (a)		16,422		76,321
Estimated interest cost within rental expense		72		295
Amortization of net debt premium, discount, and expenses		169		1,026
Total fixed charges		16,663		77,642
Earnings available for fixed charges	$	54,690	$	61,857
Ratio of earnings to fixed charges		3.28		-	(b)

^(a)  Includes interest expense related to uncertain tax positions

^(b)  Earnings are inadequate to cover fixed charges by $15.8 million for the year ended December 31, 2010. In the third quarter of 2010, Ameren Energy Generating Company recorded a goodwill and other impairment charge of $170 million. See
Note 17 - Goodwill and Other Asset Impairments of the 2010 Form 10-K for additional information.