the film forum library tutorial contact

Power from River Flow Idaho Power & Bonneville Power Administration Data also available from Energy Information Administration

Owner	Power Project	Power per Unit Flow		Value*
		kilowatt-second /cubic foot	kilowatt-hour /acre-foot	Dollars /acre-foot	Dollars /400,000 acre-foot
Idaho Power	Swan Falls	1.7	20.6	$0.5	$206,000
Idaho Power	Brownlee	19.8	240	$6.0	$2,400,000
Idaho Power	Oxbow	7.6	92	$2.3	$920,000
Idaho Power	Hells Canyon	15	182	$4.5	$1,820,000
US Government	Lower Granite	6.9	83.5	$2.1	$835,000
US Government	Little Goose	6.9	83.5	$2.1	$835,000
US Government	Lower Monumental	7.0	84.7	$2.1	$847,000
US Government	Ice Harbor	6.9	83.5	$2.1	$835,000
US Government	McNary	4.9	59.3	$1.5	$593,000
US Government	John Day	7.3	88.3	$2.2	$883,000
US Government	The Dalles	5.5	66.6	$1.7	$666,000
US Government	Bonneville	3.7	44.8	$1.1	$448,000
	_____ Total	_____ 93.2	_____ 1128.8	_____ $28.2	__________ $11,288,000

^*Assumptions:
Assuming an average price of $0.025 / kilowatt-hour and that all water goes through turbines to generate electricity. This value estimate is a rough estimate as the value of electricity is strongly dependent on season and time of day.

Conversion Factors:
43560 cubic feet / acre-foot
3600 seconds / hour

Notice:
427,000 acre-feet of flow augmentation beginning at Idaho's Swan Falls Dam generates $12 million dollars worth of electricity. This $12 million splits close to evenly between Idaho Power ($5.7 million) and the U.S. Government's Bonneville Power Administration ($6.3 million).

Related Pages:
Review of Lower Snake River Flow Augmentation Studies by Independent Science Advisory Board, April 27, 2001