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)

	Year Ended December 31,
	2005		2006		2007			2008			2009
Net income from continuing operations	$	97,039	$	56,659	$	25,780		$	4,970		$	79,520
Add- Taxes based on income		65,171		37,246		15,341			4,746			53,070
Net income before income taxes		162,210		93,905		41,121			9,716			132,590
Add- fixed charges:
Interest on short-term and long-term debt		41,028		46,167		69,085	(1)		91,143	(1)		95,535	(1)
Estimated interest cost within rental expense		1,290		205		234			701			1,615
Amortization of net debt premium, discount, and expenses		2,315		3,537		8,454			8,922			4,209
Total fixed charges		44,633		49,909		77,773			100,766			101,359
Earnings available for fixed charges		206,843		143,814		118,894			110,482			233,949
Ratio of earnings to fixed charges		4.63		2.88		1.52			1.09			2.30
Earnings required for combined fixed charges and preferred stock dividends:
Preferred stock dividends		2,294		2,294		2,294			2,294			2,294
Adjustment to pretax basis		1,542		1,508		1,365			2,191			1,531
		3,836		3,802		3,659			4,485			3,825
Combined fixed charges and preferred stock dividend requirements	$	48,469	$	53,711	$	81,432		$	105,251		$	105,184
Ratio of earnings to combined fixed charges and preferred stock dividend requirements		4.26		2.67		1.46			1.04			2.22

⁽¹⁾ Includes FIN 48 interest expense