EXHIBIT 12

AVISTA CORPORATION

Computation of Ratio of Earnings to Fixed Charges

Consolidated

(Thousands of Dollars)

	Years Ended December 31
	2009			2008			2007			2006			2005
Fixed charges, as defined:
Interest charges	$	61,361		$	74,914		$	80,095		$	88,426		$	84,952
Amortization of debt expense and premium - net		5,673			4,673			6,345			7,741			7,762
Interest portion of rentals		1,874			1,601			1,612			1,802			2,394
Total fixed charges	$	68,908		$	81,188		$	88,052		$	97,969		$	95,108
Earnings, as defined:
Pre-tax income from continuing operations	$	134,971		$	120,382		$	63,061		$	114,927		$	70,752
Add (deduct):
Capitalized interest		(545	)		(4,612	)		(3,864	)		(2,934	)		(1,689	)
Total fixed charges above		68,908			81,188			88,052			97,969			95,108
Total earnings	$	203,334		$	196,958		$	147,249		$	209,962		$	164,171
Ratio of earnings to fixed charges		2.95			2.43			1.67			2.14			1.73