Wisconsin Power & Light 10-Q 2013 Q2 Quarterly report

Exhibit 12.2

INTERSTATE POWER AND LIGHT COMPANY

RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDEND REQUIREMENTS

	Six Months Ended
	June 30,					Years Ended December 31,
	2013			2012		2012			2011			2010		2009		2008
	(dollars in millions)
EARNINGS:
Net income		$56.2			$18.1		$150.2			$139.3			$143.4		$153.0		$141.6
Income tax expense (benefit) (a)	(11.0		)	5.3		(19.8		)	(3.6		)	42.3		27.0		52.6
Income before income taxes	45.2			23.4		130.4			135.7			185.7		180.0		194.2
Fixed charges as defined	39.9			39.8		79.3			79.6			83.1		77.5		63.7
Total earnings as defined		$85.1			$63.2		$209.7			$215.3			$268.8		$257.5		$257.9
FIXED CHARGES:
Interest expense		$39.3			$39.3		$78.5			$78.7			$82.2		$76.5		$61.9
Estimated interest component of rent expense	0.6			0.5		0.8			0.9			0.9		1.0		1.8
Total fixed charges as defined		$39.9			$39.8		$79.3			$79.6			$83.1		$77.5		$63.7
Ratio of Earnings to Fixed Charges	2.13			1.59		2.64			2.70			3.23		3.32		4.05
Preferred dividend requirements (pre-tax basis) (b)		$4.6			$8.0		$10.9			$14.6			$19.9		$18.1		$21.1
Fixed charges and preferred dividend requirements		$44.5			$47.8		$90.2			$94.2			$103.0		$95.6		$84.8
Ratio of Earnings to Combined Fixed Charges and Preferred Dividend Requirements	1.91			1.32		2.32			2.29			2.61		2.69		3.04

(a) Includes net interest related to unrecognized tax benefits.

(b) Preferred dividend requirements (pre-tax basis) are computed by dividing the preferred dividend requirements by one hundred percent minus the respective year-to-date effective income tax rate. Excludes the impact of charges related to Interstate Power and Light Company’s preferred stock redemption for the six months ended June 30, 2013.