AEE 2013 10-K-Exhibit 12.1



	Year Ended December 31,
	2009		2010		2011^(a)		2012		2013
Earnings available for fixed charges, as defined:
Net income from continuing operations attributable to Ameren Corporation	$	359,040	$	513,579	$	431,213	$	515,491	$	512,055
Income from equity investee	—		—		—		—		(57		)
Tax expense based on income	145,835		294,037		254,269		307,319		311,288
Fixed charges excluding capitalized interest and preferred stock dividends tax adjustment ^(b)(c)	552,547		542,676		492,058		478,998		455,574
Amortization of capitalized interest ^(c)	3,301		3,484		3,544		3,435		1,477
Earnings available for fixed charges, as defined	$	1,060,723	$	1,353,776	$	1,181,084	$	1,305,243	$	1,280,337
Fixed charges, as defined:
Interest expense on short-term and long-term debt ^(b)	$	509,407	$	502,032	$	456,724	$	440,590	$	415,465
Capitalized interest ^(c)(d)	12,798		5,852		2,920		13,069		17,076
Estimated interest cost within rental expense	8,341		8,593		8,196		8,039		8,189
Amortization of net debt premium, discount, and expenses	24,925		23,773		21,110		23,926		25,477
Subsidiary preferred stock dividends	9,874		8,278		6,028		6,443		6,443
Adjust preferred stock dividends to pretax basis	5,271		4,753		3,561		4,529		4,116
Total fixed charges, as defined	$	570,616	$	553,281	$	498,539	$	496,596	$	476,766
Consolidated ratio of earnings to fixed charges	1.86		2.45		2.37		2.63		2.69


(a)	In 2011, Ameren Corporation recorded a charge to earnings of $89 million related to an Ameren Missouri loss on regulatory disallowance. See Note 1 – Summary of Significant Accounting Policies under Part II, Item 8, of this Form 10-K for additional information.


(b)	Includes net interest related to uncertain tax positions.


(c)	All capitalized interest is associated with discontinued operations.


(d)	Excludes allowance for funds used during construction.