Hydropower benefits every U.S. state.

Click the map to find out more about hydropower where you live.

Western U.S. Hydro Generation Profile, 2013

State Conventional Hydro MWh Total MWh Total Renewables MWh Hydro as a % of total Hydro as a % of renewable Powered & Non-powered Dams
Alaska 1,426,193 6,203,230 1,569,190 23% 90.89% 96
Arizona 5,950,654 110,126,600 8,597,650 5.40% 69.21% 346
California 24,541,380 199,997,700 61,105,380 12.27% 40.16% 1,468
Colorado 1,258,341 53,396,300 8,901,340 2.36% 14.14% 1,795
Hawaii 90,780 9,813,795 1,039,815 0.93% 7.55% 138
Idaho 9,100,528 15,741,960 12,274,530 57.81% 74.14% 428
Montana 9,953,300 27,573,220 11,614,300 36.10% 85.70% 2,916
Nevada 2,681,573 36,494,480 6,493,570 7.35% 41.30% 512
New Mexico 185,477 36,042,320 2,802,480 0.51% 6.62% 519
Oregon 33,457,372 60,164,740 41,984,370 55.61% 79.69% 935
Utah 633,830 42,822,570 1,576,830 1.48% 40.2% 795
Washington 77,906,959 113,321,300 86,657,960 68.75% 89.90% 746
Wyoming 716,600 52,395,110 5,131,600 1.37% 13.96% 1,416

Sources: USACE NID, EIA

Hydropower in the West

Hydropower accounts for more than 22 percent of all the electricity generation in these 13 western states. In states like Washington, Oregon and Idaho, hydropower accounted for more than half of each state’s electricity generation in 2013. Fed by powerful waterways like the Colorado and Columbia rivers, electricity from hydropower helps several western states enjoy some of the lowest electricity prices in the country as well as cleaner air.

Project Highlight: Alstom Power Inc.

The second largest hydropower dam in the United States is getting a 21st century upgrade thanks to National Hydropower Association member Alstom Power Inc.  The company is currently at work on the manufacture, supply and refurbishment of several Francis turbine components for the Chief Joseph Dam project in Bridgeport, Washington.

Chief Joseph Dam, the largest dam operated by the U.S. Army Corps of Engineers, was originally completed in 1961. It is home to the nation’s longest straight-line powerhouse and sends clean, affordable power to eight western states.

Aerial view of the Chief Joseph Project

This modernization project will increase the facility’s power generation capacity by more than 40 MW and boost turbine efficiency to 95% or better.  Alstom’s new ultra-efficient Francis runners (the central, rotating parts of hydroelectric turbines) are not only bringing the facility up to date, but when completed, will also deliver clean electricity to an additional 30,000 homes in the Northwestern U.S.

Already underway, the $120 million project will provide an economic boost to the region through 2017. Installing the new Alstom equipment will also protect wildlife such as salmon and steelhead. The project is an example of the incredible opportunities to grow renewable energy generation sustainably at the country’s existing dams.