Thursday, April 7, 2011

SOLAR ENERGY

Watch the video and explain to me how sunlight turns into electricity. Then, tell me some advantages and disadvantages of solar energy.


More educational games & videos on Solar Energy at NeoK12.com

17 comments:

  1. This comment has been removed by the author.

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  2. -How sun ligth converts into electricity:
    +First,sun light must be captured and converted from ligt to electricity(PV cells do it).Later, electricity which is created recives the name DC (direct correct electricity)
    In the inversion, DC energy is converted in AC energy, which is used in houses.
    Adveantages:
    a/They don´t generate pollution.
    b/They give clean energy.
    c/Solar energy is economic.
    Disadvantages:
    a/ You cannot use more energy of the acumulated in periods without sun.
    b/They aren´t beautyful, due theirs big dimensions.

    I´m not sure if this answer is OK. x)
    Bye.

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  3. This comment has been removed by the author.

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  4. This comment has been removed by the author.

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  5. Most of the homes get electricity from local power companies. Electricity enters in homes through a meter. But other homes used solar energy:

    Sunlight is captured by PV cells (which form solar panels) and converted into DC electricity. When sunlight converts into DC electricity must change that kind of electricity into AC electricity, the type used in homes. The electricity produced is destined for the home energy use and the excess power is stored in Batteries.

    If there's a lot of electricity which is not used, it's destined to the meter which sells the electricity which is not necessary, to another people energy use (instead of getting the electricity to the home energy use from a local power company)


    Advantages:


    - Solar energy is an Eco-friendly energy source and doesn't need fuel.


    - It's not harmful to the planet and helps to the decrease of green house effect.


    - It's a renewable energy source.


    - It's virtually maintenance free.



    Disadvantages:


    - The initial cost is very high.


    - Solar electricity is not available at night and also may not be accessible in case of bad weather conditions.


    - A Considerable amount of energy is lost when DC (direct current) has to be converted to AC (alternating current).



    I think that's all....

    Bye Yolanda, bye friends

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  6. Thi esnergy start when the energy of the sun enter in the solar panel and the PV cells combert in DC. This energy is use in home whic the name of the CA

    Advantages:

    This energy is a natural energy becouse is from the sun.
    Is a renowable energy.
    Disadvantages:

    Is very expensive

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  7. -A solar cell,known as photovoltaic cell converts sunlight into electricity.Many cells connected together form photovoltail panels.This electricity receives the name(DC),(DC)energy is converted in(AC)energy
    -Advantages.
    1.It is very economic.
    2.Is a renewable resource.
    3.Is clean and does not pollute the environment.
    -Disadvantages.
    1.The solar energy cannot be used at night.
    Bye:)

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  8. The electricity enters the home through a meter.
    First,sunlight is converts into electricity by PV cells.This electricity is called DC.This energy must change and converts into AC.This is the type of electricity that we have at home.

    Advantages:
    Is clean and non-polluting
    Is renewable resource.

    Disadvantages:
    We can´t use it at night.

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  9. First is de DC(A photovoltail panels is a group of cells) is when sunlight convert into electricity through the pv cell.
    Then the DC is convert into AC energy.
    And AC energy is used at home.

    Adveantages:
    •Solar energy is a renewable resource.
    •Solar energy is non-polluting.

    Disadvantages:
    •The initial cost of the equipment used to harness the suns energy.
    •Solar energy is only useful when the sun is shining.

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  10. This comment has been removed by the author.

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  11. First is de DC is when sunlight convert into electricity through the pv cell.Then the DC is convert into AC energy and AC energy is used at home.

    -Adveantages:
    1ºThey give clean energy.
    2ºSolar energy is economic.

    -Disadvantages:
    1ºwe can use this power only during daylight hours, at night we can not use.

    ReplyDelete
  12. Solar energy;)
    How sunlight turns into electricity:
    The electricity enters the home through a meter.
    First, sunlight is converts into electricity through PV cells. This electricity is called DC. And this energy is convert into AC energy, and AC is used at home.

    Advantages:
    -Solar energy is economic.
    -Is renewable resource.
    -They don´t generate pollution.

    Disadvantages:
    -Is very high the inicial kost.
    -The solar energy cannot be used at night-

    bye;)

    ReplyDelete
  13. THE SOLAR ENERY.
    How do sunlight turn into solar energy?
    First, sunlight is converts into electricity through PV cells. This electricity is called DC. And this energy is convert into AC energy, and AC is used at home.

    1-.Adventages:
    -Solar powered lights and other solar powered products are very easy to install.
    -Solar cells are long-lasting and require very little maintenance.
    -Solar energy is a renewable resource.

    2-.Disadvantages:
    -The initial cost of the equipment used to harness the suns energy.
    -Solar energy is only useful when the sun is shining.

    ReplyDelete
  14. SOLAR ENERGY.
    How do sunlight turn into solar energy?
    Sunlight is converts into electricity by PV cells. And the energy is call DC.DC electricity change that AC electricity, this going to our houses.

    1-Adventages:
    -It is more economic.
    -It's clean.

    2-Disadventages:
    -initial cost high.
    -Solar energy can't used at night.

    that's all. Bye bye! One kiss to everyone!

    ReplyDelete
  15. first the cell take the energy from the sun and this energy is converted into electrical enrgy it´s is call DC

    adventages:
    this energy is clear and don,t dont created pollution

    disadventagess

    the installation of solar panels is very expensive the panels dont work at night but you can use a batery

    ReplyDelete
  16. Solar energy:
    Smunlight must be captured and converted from ligt to electricity.After this,electricity is called direct correct electricity (DC)
    During the inversion,DC energy is converted in AC energy,wich is used in houses.

    Advantages:

    -The solar energy is economic.

    -It is a renewable energy source.

    -Not pollute the enviroment.

    Disadvantages:

    - It is espensive.

    -It is imposible to use in night.

    ReplyDelete

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