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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

Seasonal Precipitation, April to September

Hydroelectric Power Production

0-5

5-10

10-20

20-40

40-80

Alaska
13.5%44.9%31.7%4.93%
Arizona
127.8%70.8%1.40%
Utah
19.7%80.3%
Yukon
1.73%79.6%16.9%1.69%
Northwest Territories
23.4%64.7%8.79%
District of Columbia
100%
Florida
86.4%10.2%
Idaho
6.16%73.2%20.6%
New Hampshire
100%
Rhode Island
100%
Vermont
100%
Washington
120.5%31.6%40.9%5.77%
Wyoming
69.2%30.8%
Nunavut
33.5%53.8%3.41%
Montana
21.7%78.3%
Maine
98.4%
North Dakota
100%
Kentucky
100%
Nova Scotia
76.3%
Virginia
198.0%
Delaware
99.2%
Saskatchewan
12.0%88.0%
Mississippi
99.9%
West Virginia
100%
Nebraska
76.5%23.5%
Texas
5.18%70.3%24.2%
Missouri
100%
Louisiana
97.7%
Hawaii
41.5%
North Carolina
99.2%
Oregon
122.6%52.1%25.2%
New Brunswick
98.9%
Alabama
99.9%
New Mexico
49.3%50.7%
Kansas
49.1%50.9%
Wisconsin
5.33%94.0%
British Columbia
16.58%74.8%16.1%0.142%
Newfoundland and Labrador
141.1%53.3%
New Jersey
99.8%
South Carolina
199.9%
Michigan
174.9%19.2%
Alberta
11.5%88.5%
Connecticut
199.9%
Pennsylvania
1100%
Colorado
39.8%60.2%
Nevada
59.6%40.4%
Massachusetts
188.5%
Georgia
199.9%
New York
114.8%82.5%
Maryland
98.7%
Québec
12.23%49.6%46.9%
Manitoba
10.241%99.7%
Oklahoma
37.6%62.4%
Tennessee
1100%
Ontario
191.7%7.15%
California
167.0%31.4%
Arkansas
100%
South Dakota
100%
Ohio
0.563%99.0%
Indiana
100%
Minnesota
50.3%49.6%
Iowa
2.53%97.5%
Illinois
100%
0.18.0