EXHIBIT 12

AVISTA CORPORATION

Computation of Ratio of Earnings to Fixed Charges

Consolidated

(Thousands of Dollars)

	12 months ended March 31, 2008		Years Ended December 31
			2007		2006		2005		2004
Fixed charges, as defined:
Interest charges	$	78,907	$	80,095	$	88,426	$	84,952	$	84,746
Amortization of debt expense and premium - net		5,874		6,345		7,741		7,762		8,301
Interest portion of rentals		1,600		1,612		1,802		2,394		2,443
Total fixed charges	$	86,381	$	88,052	$	97,969	$	95,108	$	95,490
Earnings, as defined:
Income from continuing operations	$	49,612	$	38,475	$	72,941	$	44,988	$	35,453
Add:
Income tax expense		31,936		24,334		41,986		25,764		21,506
Total fixed charges above		86,381		88,052		97,969		95,108		95,490
Total earnings	$	167,929	$	150,861	$	212,896	$	165,860	$	152,449
Ratio of earnings to fixed charges		1.94		1.71		2.17		1.74		1.60