Exhibit 12.6

Illinois Power Company

Computation of Ratio of Earnings to Fixed Charges and Combined

Fixed Charges and Preferred Stock Dividend Requirements

(Thousands of Dollars, Except Ratios)

	Nine Months Ended September 30, 2010		Year Ended December 31, 2009
Net income from continuing operations	$	102,242	$	79,520
Add- Taxes based on income		67,016		53,070
Net income before income taxes		169,258		132,590
Add- fixed charges:
Interest on short-term and long-term debt (a)		65,609		95,535
Estimated interest cost within rental expense		1,271		1,615
Amortization of net debt premium, discount, and expenses		2,801		4,209
Total fixed charges		69,681		101,359
Earnings available for fixed charges		238,939		233,949
Ratio of earnings to fixed charges		3.42		2.30
Earnings required for combined fixed charges and preferred stock dividends:
Preferred stock dividends		1,284		2,294
Adjustment to pretax basis		842		1,531
		2,126		3,825
Combined fixed charges and preferred stock dividend requirements	$	71,807	$	105,184
Ratio of earnings to combined fixed charges and preferred stock dividend requirements		3.32		2.22

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