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- 10-K Annual report
- 10.5 Form of Performance Share Agreement
- 10.5 Form of Performance Contingent Restricted Stock Agreement
- 10.6 Alliant Energy Director Long Term Incentive Plan (Dlip)
- 10.6 Form of Restricted Cash Agreement Pursuant to the Alliant Energy Dlip
- 10.6 Form of Performance Restricted Award Agree. Pursuant to the Alliant Energy Dlip
- 10.18 Summary of Compensation and Benefits for Non-employee Directors
- 12.1 Ratio of Earnings to Fixed Charges for Alliant Energy
- 12.2 Ratio of Earnings to Fixed Charges and Ratio of Earnings
- 12.3 Ratio of Earnings to Fixed Charges and Ratio of Earnings
- 21.1 Subsidiaries of Alliant Energy
- 21.2 Subsidiaries of WPL
- 23.1 Consent of Independent Registered Public Accounting Firm for Alliant Energy
- 23.2 Consent of Independent Registered Public Accounting Firm for Ipl
- 23.3 Consent of Independent Registered Public Accounting Firm for WPL
- 23.4 Consent of Independent Registered Public Accounting Firm
- 31.1 Certification of the Chairman and CEO for Alliant Energy
- 31.2 Certification of the Vice President-cfo and Treasurer for Alliant Energy
- 31.3 Certification of the Chairman and CEO for Ipl
- 31.4 Certification of the Vice President-cfo and Treasurer for Ipl
- 31.5 Certification of the Chairman and CEO for WPL
- 31.6 Certification of the Vice President-cfo and Treasurer for WPL
- 32.1 Written Statement of the CEO and CFO Pursuant to 18 U.s.c.
- 32.2 Written Statement of the CEO and CFO Pursuant to 18 U.s.c.
- 32.3 Written Statement of the CEO and CFO Pursuant to 18 U.s.c.
- 99.1 Financial Statements of American Transmission Company LLC
- PDF PDF of 10-K
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
Years Ended Dec. 31, | ||||||||||||||||||||
2010 | 2009 | 2008 | 2007 | 2006 | ||||||||||||||||
EARNINGS: | ||||||||||||||||||||
Net income | $ | 143.4 | $ | 153.0 | $ | 141.6 | $ | 290.3 | $ | 172.4 | ||||||||||
Income taxes (a) | 42.3 | 27.0 | 52.6 | 186.8 | 69.4 | |||||||||||||||
Income before income taxes | 185.7 | 180.0 | 194.2 | 477.1 | 241.8 | |||||||||||||||
Fixed charges as defined | 83.1 | 77.5 | 63.7 | 65.8 | 73.3 | |||||||||||||||
Total earnings as defined | $ | 268.8 | $ | 257.5 | $ | 257.9 | $ | 542.9 | $ | 315.1 | ||||||||||
FIXED CHARGES: | ||||||||||||||||||||
Interest expense | $ | 82.2 | $ | 76.5 | $ | 61.9 | $ | 64.3 | $ | 71.8 | ||||||||||
Estimated interest component of rent expense | 0.9 | 1.0 | 1.8 | 1.5 | 1.5 | |||||||||||||||
Total fixed charges as defined | $ | 83.1 | $ | 77.5 | $ | 63.7 | $ | 65.8 | $ | 73.3 | ||||||||||
Ratio of Earnings to Fixed Charges | 3.23 | 3.32 | 4.05 | 8.25 | 4.30 | |||||||||||||||
Preferred dividend requirements (pre-tax basis) (b) | $ | 19.9 | $ | 18.1 | $ | 21.1 | $ | 25.3 | $ | 21.6 | ||||||||||
Fixed charges and preferred dividend requirements | $ | 103.0 | $ | 95.6 | $ | 84.8 | $ | 91.1 | $ | 94.9 | ||||||||||
Ratio of Earnings to Combined Fixed Charges and | ||||||||||||||||||||
Preferred Dividend Requirements | 2.61 | 2.69 | 3.04 | 5.96 | 3.32 | |||||||||||||||
(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 annual effective income tax rate.