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  1. Hydroelectricity - Wikipedia

    Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, [1] which is …

  2. Hydroelectric power | Definition, Renewable Energy, Advantages ...

    Nov 14, 2025 · Hydroelectric power is a form of renewable energy in which electricity is produced from generators driven by turbines that convert the potential energy of moving water into …

  3. How Hydropower Works | Department of Energy

    Hydropower, or hydroelectric power, is a renewable source of energy that generates power by using a dam or diversion structure to alter the natural flow of a river or other body of water.

  4. Hydropower explained - U.S. Energy Information Administration …

    Hydropower was one of the first sources of energy used for electricity generation, and until 2019, hydropower was the leading source of total annual U.S. renewable electricity generation.

  5. Hydroelectric Energy - Education

    Hydroelectric energy, also called hydroelectric power or hydroelectricity, is a form of energy that harnesses the power of water in motion—such as water flowing over a waterfall—to generate …

  6. Hydroelectric Power: How it Works | U.S. Geological Survey

    Jun 6, 2018 · Falling water produces hydroelectric power. So just how do we get electricity from water? Actually, hydroelectric and coal-fired power plants produce electricity in a similar way.

  7. What is Hydroelectric Energy? | Green Mountain Energy

    Hydroelectricity — also called hydroelectric energy or hydropower — is electricity that’s generated by either damming or diverting a body of water to harness the power of its movement. Like …

  8. Hydropower Basics | NLR

    Oct 8, 2025 · Hydropower is energy created from fresh, moving water. Over 2,000 years ago, the ancient Greeks used the power in rivers and streams to rotate wooden wheels and crush grain …

  9. How Hydroelectric Power Works - TVA.com

    3 days ago · When water is released through the dam, it spins a turbine connected to a generator that produces electricity. The water returns to the river on the downstream side of the dam. …

  10. What Is Hydroelectric Power & How Does It Work? - Gexa Energy

    Jul 25, 2025 · Also known as hydroelectric power or hydroelectric energy, hydropower uses moving water to produce electricity. One of the oldest and largest renewable energy sources in …