Hydroelectric power
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Hydroelectric Power. By: Alex Booth. Hydroelectricity. Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water

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Hydroelectric power

Hydroelectric Power

By: Alex Booth


  • Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water

  • Hydroelectric generators convert mechanical energy into electricity

Positive effects
Positive Effects :)

  • There are many positive effects of hydroelectricity:

    • Renewable resource

    • Does not produce any waste

    • Helps power many homes and cities

    • Reduce green house gases and does not release any

Negative effects
Negative Effects :(

  • There are few negative effects:

    • Costly to build dams

    • Relies on rain and melting of snow to replenish water sources in rivers

    • Obstructs fish species seasonal migrations

    • Damages surrounding environment, erosion

World wide use
World Wide Use

  • Most widely used source of renewable energy

  • Accounting for 16% of global electricity consumption

  • 3,427 terawatt-hours of electricity was produced in 2010

  • World’s largest dam is the Gordon Dam in Tasmania

  • The world produces about 19% of this electricity

  • 150 countries use this method to produce energy

  • China is the largest producer of this style of energy

Generating methods
Generating methods

  • Conventional dams- traditional potential energy of dammed water driving a water turbine and generator

  • Pumped-storage dams- is a method of producing electricity to supply high peak demands by moving water between reservoirs at different elevations

  • Run-of-the-river hydroelectric stations- are those with small or no reservoir capacity, so that the water coming from up stream must be used for generation at that moment

  • Tidal power plants- make use of the daily rise and fall of ocean water due to tide.

  • Underground- make use of a large natural height difference between two waterways, such as a waterfall or mountain lake

Economic benefits
Economic Benefits

  • The cost of hydroelectricity is generally low. Making a very competitive source of renewable electricity.

  • Low power costs because of the elimination of fuel

  • Very long lives between 50-100 years of business

  • Operating labor costs is usually low because the plants are automated

Comparison with other methods of power generation
Comparison with other methods of power generation

  • Hydroelectricity eliminates the flue gas emissions from fossil fuel combustion, including pollutants such as sulfur dioxide, nitric oxide, carbon monoxide, dust, and mercury

  • Avoids the hazards of coal mining and the indirect health effects of coal emissions

  • Compared to nuclear power, hydroelectricity generates no nuclear waste, has none of the dangers associated with uranium mining, nor nuclear leaks.

    • Unlike uranium, hydroelectricity is also a renewable energy source.

Sorry hydroelectricity trivia
Sorry! – Hydroelectricity Trivia!

  • Rules!

    • ThreeTEAMS OF TWO

    • Answer the questions given to you

    • If CORRECT move ahead the number of spaces placed on the card

    • If WRONG the question moves to the next player for +1 steps to the original. (This does not stack if that second person gets it wrong.)

    • If no one gets it right then the answer is revealed and we move on

    • Game will move in a clockwise rotation.

    • Objective is to get both your team’s pieces in to home first and WIN!