Hydroelectric Power

From the 18th-century Cromford Mill to the Three Gorges Dam, water has been used to generate energy for centuries, through technologies and facilities that have continued to evolve over time.

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Benefits of hydroelectric power

An efficient and sustainable energy source

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Flexibility and efficiency

The capacity of hydroelectric plants, particularly reservoir and pumped-storage plants, can be quickly adapted to meet new grid demands. Furthermore, the energy produced has a very competitive cost per kilowatt-hour.

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Long Service Life

A hydroelectric power plant has a potential operational life of a century or more: maintenance, upgrades, and technological innovations can help maintain its efficiency and functionality over time.

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Less CO2

During power generation, a hydroelectric power plant does not burn fossil fuels. However, the assessment of its emissions must take into account the plant’s entire life cycle and the characteristics of the reservoir.

Frequently Asked Questions About Hydroelectric Power

How do hydroelectric power plants work? What factors determine the amount of electricity produced, and what role can pumped-storage plants play? Here are the answers to the most frequently asked questions about hydroelectric power.