. . . EXHIBIT 12.1 NEVADA POWER COMPANY RATIO OF EARNINGS TO FIXED CHARGES Year Ended December 31, --------------------------------------------------------- Amounts in 000's 3/31/2004 3/31/2003 2003 2002 2001 2000 1999 --------- --------- EARNINGS AS DEFINED: Income (Loss) From Continuing Operations After Interest Charges $ (15,406) $ (15,246) $ 19,277 $(235,070) $ 63,405 $ (7,928) $ 38,787 Income Taxes (9,465) (8,034) (614) (131,784) 32,783 (9,386) 21,213 --------- --------- --------- --------- --------- --------- --------- Income (Loss) From Continuing Operations before Income Taxes (24,871) (23,280) 18,663 (366,854) 96,188 (17,314) 60,000 Fixed Charges 43,199 41,618 198,042 141,380 114,484 104,402 98,203 Capitalized Interest (930) (1,056) (2,700) (3,412) (2,141) (7,855) (8,356) Total $ 17,398 $ 17,282 $ 214,005 $(228,886) $ 208,531 $ 79,233 $ 149,847 ========= ========= ========= ========= ========= ========= ========= FIXED CHARGES AS DEFINED: Interest Expensed and Capitalized (1) $ 43,199 $ 41,618 $ 198,042 $ 141,380 $ 114,484 $ 104,402 $ 98,203 Total $ 43,199 $ 41,618 $ 198,042 $ 141,380 $ 114,484 $ 104,402 $ 98,203 ========= ========= ========= ========= ========= ========= ========= RATIO OF EARNINGS TO FIXED CHARGES 0.40 0.42 1.08 -1.62 1.82 0.76 1.53 DEFICIENCY (2) $ 25,801 $ 24,336 $ -- $ 370,266 $ -- $ 25,169 $ -- (1) Includes amortization of premiums, discounts, and capitalized debt expense and interest component of rent expense. (2) For the years ended December 31, 2003 and 2000 and the three months ended March 31, 2003 and March 31, 2004, earnings were insufficient to cover fixed charges by $370,255, $25,169, $24,336 and $25,801, respectively.