--- title: "What is hydro energy and how it is produced?" description: "What is hydro energy and how it is produced?" author: "Radheshyam Prasad Tiwari" published: 2023-06-20 updated: 2023-06-21 canonical: https://answers.mindstick.com/qa/100068/what-is-hydro-energy-and-how-it-is-produced category: "science" tags: ["science"] reading_time: 2 minutes --- # What is hydro energy and how it is produced? ## Answers ### Answer by Mark John Hydro energy is a [renewable energy source](https://yourviews.mindstick.com/view/85332/how-renewable-energy-and-clean-technology-can-change-india-s-economy) that uses the power of moving water to generate electricity. It is one of the oldest and largest sources of renewable energy, and it currently accounts for about 6.2% of global electricity generation. Hydro energy is produced by building a dam across [a river or stream.](https://www.mindstick.com/blog/74121/panch-prayag-five-sacred-river-confluences-in-uttarakhand) The water behind the dam is stored in a reservoir, and when it is released, it flows through a turbine that spins a [generator](https://www.mindstick.com/articles/249204/generator-info-where-can-you-find-the-best-generator-for-power-outages), which produces electricity. ![What is hydro energy and how it is produced?](https://answers.mindstick.com/questionanswer/cf56995b-393a-4b51-83a3-6ac2251990e0/images/e113ec28-8703-444a-980e-9a9ceda77844.jpg) There are two main types of hydro power plants: - **Run-of-the-river plants:** These plants use the natural flow of the river to generate electricity. They do not have a reservoir, so they can only produce electricity when the river is flowing. - **Storage plants:** These plants have a reservoir, which allows them to store water and generate electricity when it is needed. Storage plants are more flexible than run-of-the-river plants, and they can be used to regulate the grid and provide backup power during peak demand. Hydro energy is a clean and renewable energy source, and it has a number of [advantages](https://www.mindstick.com/articles/44063/the-individual-advantages-of-short-online-courses) over other sources of energy. It is also a relatively reliable [source of energy](https://yourviews.mindstick.com/story/1008/fruits-are-the-great-source-of-energy-for-human-body), and it can be used to generate large amounts of electricity. However, there are also some [disadvantages](https://yourviews.mindstick.com/view/83828/advantage-or-disadvantages-of-health-insurance) to hydro energy. Dams can have a [significant impact](https://answers.mindstick.com/qa/51285/why-did-the-misery-index-have-a-significant-impact-on-carter-s-election-loss-in-1980-a-it-highlighted-carter-s-foreign-policy-failures-b-it-showed-carter-s-lack-of-commitment-to-social-welfare-c) on the [environment](https://yourviews.mindstick.com/view/81549/greenhouse-effect-on-environment), and they can also displace people who live in the area. Additionally, hydro energy is not always available, as it depends on the flow of water. Overall, hydro energy is a clean and renewable energy source that has a number of advantages. However, it is important to be aware of the potential environmental impacts of dams before developing hydro power projects. Here are some additional facts about hydro energy: - The world's largest hydroelectric [power plant](https://answers.mindstick.com/qa/40388/with-which-country-india-will-collaborate-to-build-rooppur-nuclear-power-plant-in-bangladesh-it-will-be-india-s-first-atomic-energy-venture-abroad) is the Three Gorges Dam in China. It has a generating capacity of 22,500 megawatts. - Hydro energy is the most widely used renewable energy source in the world. - Hydro energy is a relatively low-cost source of energy. - Hydro energy is a reliable source of energy. - Hydro energy has a relatively small [environmental impact](https://answers.mindstick.com/qa/112802/how-are-sustainable-fashion-practices-reducing-environmental-impact). --- Original Source: https://answers.mindstick.com/qa/100068/what-is-hydro-energy-and-how-it-is-produced Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.