solar energy

• Solar power uses the energy of the Sun to

  generate electricity.

  
• solar cell

  generates electricity

  
• a solar cell uses the suns rays to

  generate electricity

  
• solar energy is very weather dependent therefore it is 


  unreliable
• solar cell can save

  money as there is no need for expense
• if one uses a solar cell they have their own


  electricity

  
• a solar cell does not produce greenhouse gases therefore it is 


  renewable

  
• disadvantage of using solar cell

  it is difficult to manufacture and install as it is costly

  
• solar energy is uses what store of energy

  nuclear

  
• solar panel is used for

  heating

  
• The Sun generates radiant energy that it gives off as heat and light. 

  he light of the Sun travels the 147 million kilometres to Earth in just over 8 minutes . 

  
• When sunlight hits the Earth’s surface, we capture some of it using solar panels

  
•  an example of solar cells on the top of some calculators.

  
• When sunlight hits layers of silicon inside solar cells, an electric charge builds up, creating a flow of electricity.

  
• Solar panels are mainly located on the roofs of homes and buildings and can generate electricity and heat water free of charge.

  
• In the Northern Hemisphere (including Scotland) solar panels work best when they face south.


  This lets them face towards the sun all day.

  
• Because solar panels rely on sunlight, they only generate 


  electricity during the daytime when sunlight is shining on them.

  
• If it is cloudy, they are less effective and if it is night time,

  they do not generate any electricity.

  
•  solar panels do not

  store energy.