EXHIBIT 12

AVISTA CORPORATION

Computation of Ratio of Earnings to Fixed Charges

Consolidated

(Thousands of Dollars)

	Years Ended December 31
	2011			2010			2009			2008			2007
Fixed charges, as defined:
Interest charges	$	69,591		$	72,010		$	61,361		$	74,914		$	80,095
Amortization of debt expense and premium - net		4,617			4,414			5,673			4,673			6,345
Interest portion of rentals		2,154			2,027			1,874			1,601			1,612
Total fixed charges	$	76,362		$	78,451		$	68,908		$	81,188		$	88,052
Earnings, as defined:
Pre-tax income from continuing operations	$	160,171		$	146,105		$	134,971		$	120,382		$	63,061
Add (deduct):
Capitalized interest		(2,942	)		(298	)		(545	)		(4,612	)		(3,864	)
Total fixed charges above		76,362			78,451			68,908			81,188			88,052
Total earnings	$	233,591		$	224,258		$	203,334		$	196,958		$	147,249
Ratio of earnings to fixed charges		3.06			2.86			2.95			2.43			1.67