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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

Aquifers: Distribution and Recharge

Hydroelectric Power Production

very high (>300)

high (100–300)

medium (20–100)

low (2–20)

very low (<2)

high (100–300)

medium (20–100)

low–very low (<20)

very high–high (>100)

medium–very low (<100)

Alaska
10.9%1.73%69.2%
Arizona
12.82%3.38%7.86%26.1%30.0%
Utah
19.0%13.5%4.33%52.4%8.18%
Yukon
2.68%1.03%94.3%
Northwest Territories
0.393%14.9%20.5%0.340%
District of Columbia
100%
Florida
67.8%3.90%
Idaho
0.187%2.97%8.14%5.84%27.5%16.7%38.6%
New Hampshire
100%
Rhode Island
95.4%
Vermont
100%
Washington
19.44%21.7%1.72%5.32%11.6%26.7%12.4%
Wyoming
9.28%70.8%0.149%
Nunavut
1.56%18.2%
Montana
1.96%56.5%4.73%1.30%
Maine
99.6%0.281%
North Dakota
25.0%35.7%38.6%
Kentucky
4.79%60.6%34.6%
Nova Scotia
25.1%6.85%
Virginia
125.5%28.7%45.7%
Delaware
97.7%1.87%
Prince Edward Island
98.8%
Saskatchewan
7.13%4.36%15.3%6.27%23.7%
Mississippi
80.4%0.601%11.5%
West Virginia
99.3%0.714%
Nebraska
45.3%37.3%4.89%3.30%
Texas
15.3%1.57%15.4%1.38%14.5%1.86%6.12%
Missouri
5.80%47.7%11.5%24.4%9.83%
Louisiana
99.6%
Hawaii
7.83%2.03%
North Carolina
38.6%0.266%54.6%
Oregon
14.58%2.26%3.46%4.92%49.2%17.6%0.416%
New Brunswick
0.131%55.2%0.167%
Alabama
52.2%32.1%10.6%
New Mexico
9.01%8.20%2.38%17.5%42.2%
Kansas
13.6%26.2%18.1%41.9%
Wisconsin
42.1%16.2%35.1%
British Columbia
10.939%8.63%3.82%42.0%15.4%
Newfoundland and Labrador
163.0%10.9%
New Jersey
62.4%37.3%
South Carolina
162.7%37.3%
Michigan
126.5%66.0%
Alberta
11.4%3.76%18.2%32.1%8.32%2.17%3.59%
Connecticut
199.9%
Pennsylvania
11.35%83.5%10.2%
Colorado
3.69%14.3%3.67%9.04%16.4%46.7%
Nevada
0.846%77.8%0.958%0.158%10.3%
Massachusetts
10.204%98.0%
Georgia
150.4%4.39%36.4%
New York
12.89%5.91%91.1%
Maryland
64.7%13.9%20.7%
Québec
10.272%70.7%19.6%
Manitoba
11.61%4.56%6.78%4.33%51.3%
Oklahoma
9.60%2.65%7.80%23.7%54.6%
Tennessee
121.5%71.6%3.39%
Ontario
113.7%8.23%4.40%59.7%1.73%
California
11.53%8.91%2.60%8.90%3.94%0.295%0.750%14.0%3.26%
Arkansas
49.6%14.2%36.2%
South Dakota
4.24%4.28%9.35%8.75%73.3%
Ohio
88.6%3.31%
Indiana
65.5%0.222%12.0%
Minnesota
7.33%24.3%29.3%39.1%
Iowa
38.7%26.5%11.3%6.08%
Illinois
0.557%94.5%0.407%
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