Sierra Pacific Power 10-K/A 2007 FY Annual report (amended)

EXHIBIT 12 (A)

SIERRA PACIFIC RESOURCES
RATIOS OF EARNINGS TO FIXED CHARGES
(Dollars in Thousands)

	Year Ended December 31,
	2007			2006			2005			2004			2003
EARNINGS AS DEFINED:
Income (Loss) From Continuing Operations After Interest Charges	$	197,295		$	279,792		$	86,137		$	30,842		$	(117,286	)
Income Taxes		87,555			145,605			43,118			18,050			(51,275	)
Income (Loss) From Continuing Operations before Income Taxes		284,850			425,397			129,255			48,892			(168,561	)
Fixed Charges		310,876			336,024			319,654			324,969			384,565
Capitalized Interest (allowance for borrowed funds used during construction)		(25,967	)		(17,119	)		(24,691	)		(8,587	)		(5,976	)
Preferred Stock Dividend Requirement		—			(3,602	)		(6,000	)		(6,000	)		(6,000	)
Total	$	569,759		$	740,700		$	418,218		$	359,274		$	204,028
FIXED CHARGES AS DEFINED:
Interest Expensed and Capitalized(1)	$	310,876		$	332,422		$	313,654		$	318,969		$	378,565
Preferred Stock Dividend Requirement		—			3,602			6,000			6,000			6,000
Total		310,876			336,024			319,654		$	324,969		$	384,565
RATIO OF EARNINGS TO FIXED CHARGES		1.83			2.20			1.31			1.11
DEFICIENCY	$	—		$	—		$	—		$	—		$	180,537

(1) Includes amortization of premiums, discounts, and capitalized debt expense and interest component of rent expense.

     For the purpose of calculating the ratios of earnings to fixed charges, “Fixed charges” represent the aggregate of interest charges on short-term and long-term debt (whether expensed or capitalized), the portion of rental expense deemed to be attributable to interest, and the pre-tax preferred stock dividend requirement of SPPC. “Earnings” represents pre-tax income (or Loss) from continuing operations before pre-tax preferred stock dividend requirement of SPPC and fixed charges (excluding capitalized interest).