What are disadvantages of hydroelectric power?

Answer

The disadvantages of hydroelectric power include: the high prospective for extreme damage to the local ecosystem and the high cost of its construction. In addition, building a large dam changes the natural water table altitude.
Q&A Related to "What are disadvantages of hydroelectric power?"
It can kill lots of fishy. Also, it affects the river downstream from the dam built.
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Hydroelectric power is used to provide electricity without burning fossil fuels or producing toxic nuclear waste. Hydroelectric power systems can help replace coal and gas fired plants
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Heat from the sun warms the water in the ocean, which evaporates and condenses to form clouds at higher altitudes. Part of this water returns to the land through precipitation. Precipitation
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Advantages: clean, renewable, safe, almost no pollution. Disadvantages: few places it can be implemented, disruption for river wildlife, land loss behind a dam
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