Hydro-Electric Power. Worldwide, Hydro-Electric Power plants produce about 24 percent of the world's electricity and supply more than 1 billion people.

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Presentation transcript:

Hydro-Electric Power

Worldwide, Hydro-Electric Power plants produce about 24 percent of the world's electricity and supply more than 1 billion people with power. Hydropower or Hydro- Electric Power is electricity generated using the energy of moving water, usually originating in hills and mountains which create streams and rivers that eventually run to the ocean.

Hydro-Electric Power Hydro-Electric Power is the most significant and clean renewable energy source. Also it doesn't cause global warming because it doesn't releases dangerous greenhouse gases. Hydro-Electric Power can be used anywhere in the world where there's falling water. The first hydro-electric power plant was built at Niagara Falls in 1879 and in 1881 hydropower was used to light the street lamps for Niagara Falls.

Hydro-Electric Power In 1882 the world’s first hydro-electric power plant began operating in the United States. Hydroelectricity, from the Greek word’ hudor’ meaning water, is energy from water. Hydro- Electric Power is the cheapest way to generate electricity today. One of the oldest sources of energy was Hydro-Electric Power. Hydro- electric power stations can successfully function for a very long time.

Hydro-Electric Power Advantages Once the dam is built, the energy is virtually free. No waste or pollution produced. Much more reliable than wind, solar or wave power. Water can be stored above the dam ready to cope with peaks in demand. Hydro-electric power stations can increase to full power very quickly, unlike other power stations. Electricity can be generated constantly

Hydro-Electric Power Disadvantages The dams are very expensive to build. However, many dams are also used for flood control or irrigation, so building costs can be shared. Building a large dam will flood a very large area upstream, causing problems for animals that used to live there. Finding a suitable site can be difficult - the impact on residents and the environment may be unacceptable. Water quality and quantity downstream can be affected, which can have an impact on plant life

Hydroelectric power: Summary Hydro-electric power means getting energy from flowing water Usually we build a dam, and let the water turn turbines & generators as it goes through pipes in the dam Renewable No pollution, no fuel needed, no waste Expensive to build Building a dam means flooding a lot of land