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Hydroelectric Power Production

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The world's primary regions for producing hydroelectricity at dammed river power plants

Global Energy Observatory
The map shows the distribution of some of the world’s major hydroelectric dams and power-generating stations. In North America, these facilities are found in Canada in British Columbia, Ontario, Quebec, and Labrador. In the United States, they are on major rivers in the Pacific Northwest (for example, the Columbia River), Arizona and Utah (on the Colorado River), and in the Northeast in New York (on the Niagara River between United States and Canada) and New England. In South America, dams generate hydro power in Venezuela, Colombia, Brazil (particularly on the Paraná River and its tributaries), and in Argentina on the Rio de la Plata and on rivers that flow from the Andes mountains. In Europe, major hydroelectric facilities are found in Portugal, Norway, France, Switzerland, Ukraine (on the Dnieper River), and in Russia (on the Volga and on rivers in Siberia, which is in Asia). In Africa, these facilities have been constructed on the Nile River in Egypt, Sudan, and Ethiopia and between Zambia and Zimbabwe on the Zambesi River. In Southwest Asia, hydroelectric dams generate power on the Euphrates River in Turkey, the Tigris in Iraq, and Iran’s Zagros Mountains. In Central Asia, Tajikistan has a hydroelectric dam. In South Asia, dams have been constructed on rivers in northern Pakistan; in India on rivers in Kashmir in the north as well as in several places in central and southern India; and in Bhutan. In Southeast Asia, these facilities are found in Laos and Vietnam and in Indonesia on the islands of Java and Borneo. In East Asia, southwestern and central China have numerous hydroelectric dams, and there are also a few in northern China. Japan has a major hydroelectric dam between Tokyo and Osaka. The map does not show any hydropower production for Oceania.
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Hydroelectric Power Production

Water Resources Vulnerability

Hydroelectric Power Production

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Arid and low water use

Low (<10%)

Low-medium (10-20%)

Medium-high (20-40%)

High (40-80%)

Extremely high (>80%)

Alaska
0.132%87.9%0.193%0.154%1.32%
Arizona
13.34%9.37%6.97%0.448%4.52%
Utah
20.8%13.7%0.313%0.420%49.5%
Yukon
0.923%99.0%
Northwest Territories
0.342%3.62%
District of Columbia
100%
Florida
10.4%12.0%0.279%0.266%0.590%
Idaho
0.772%13.8%28.4%8.83%44.9%
New Hampshire
17.2%33.7%40.5%8.46%
Rhode Island
0.183%86.5%6.09%
Vermont
7.27%88.3%4.41%
Washington
172.6%3.37%5.42%0.287%6.53%
Wyoming
21.7%0.541%70.3%
Nunavut
0.979%18.2%
Montana
28.7%2.60%14.6%5.24%35.2%
Maine
94.9%2.65%0.228%0.817%
North Dakota
7.38%3.22%4.45%0.249%9.67%36.7%
Kentucky
76.6%17.7%5.68%
Nova Scotia
0.182%80.1%
Virginia
111.9%0.775%16.4%1.64%
Delaware
0.105%37.7%61.1%
Prince Edward Island
98.5%
Saskatchewan
4.25%59.9%2.62%2.54%2.67%0.868%
Mississippi
74.5%1.57%23.9%
West Virginia
63.6%17.6%14.6%
Nebraska
0.605%3.54%22.3%73.5%
Texas
4.07%3.41%2.84%1.94%22.5%2.71%
Missouri
45.5%14.9%0.131%5.37%
Louisiana
54.5%20.6%5.75%
Hawaii
7.82%
North Carolina
0.116%12.2%54.7%3.14%0.982%
Oregon
114.3%48.2%11.8%4.82%0.772%0.847%
New Brunswick
99.5%
Alabama
92.6%5.45%0.987%
New Mexico
30.3%0.128%7.32%21.7%
Kansas
0.176%1.82%13.8%68.4%
Wisconsin
5.67%25.0%40.8%9.68%
British Columbia
192.0%1.55%0.285%
Newfoundland and Labrador
174.5%
New Jersey
0.162%3.07%94.0%1.76%
South Carolina
10.748%24.6%36.2%
Michigan
156.0%3.00%4.63%9.70%
Alberta
3.52%56.8%0.267%4.01%3.67%11.4%
Connecticut
10.460%29.6%24.9%23.8%1.35%
Pennsylvania
11.42%27.8%49.9%3.96%
Colorado
0.795%9.40%85.2%
Nevada
8.21%0.731%1.40%0.413%2.80%24.0%
Massachusetts
10.206%0.166%33.6%8.30%30.7%
Georgia
18.71%47.0%37.9%
New York
125.4%5.89%56.3%5.19%0.401%
Maryland
0.151%4.45%64.3%1.05%8.49%
Québec
199.1%0.240%
Manitoba
10.656%83.1%11.7%2.04%1.39%
Oklahoma
11.4%5.60%4.28%17.9%30.0%
Tennessee
190.1%5.50%
Ontario
197.2%1.67%1.13%
California
10.688%12.5%0.232%17.8%2.26%1.00%
Arkansas
12.6%46.8%33.2%6.01%
South Dakota
32.7%3.47%37.3%22.0%
Ohio
3.42%0.721%29.0%
Indiana
0.434%1.19%8.61%4.78%
Minnesota
21.0%3.81%13.1%23.4%22.0%
Iowa
26.6%12.5%44.0%16.3%0.628%
Illinois
30.9%0.187%44.1%9.75%
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