Murphy+Period+3+Group+1+Solar+Energy+Plant

= Energy Type: Solar Energy = = Source: Sun =

** 1. How is solar power converted into electricy? **
Photovoltaic cells absorb the light convert energy to electricty. When the light hits the semiconductor, a portion of light energy is absorbed causing the release of electrons. The electric curret that results electricty and is collected by metal contact grids on the tops and bottoms of solar cells.

** 2. How is solar energy used today? **
- heats water - solar towers - solar powered electic boats - solar furnace

** 3. What are the advantages of using solar energy? **
- Solar energy is free- it needs no fuel and produces no waste pollution -In sunny countires solar power can be used where there is no easy way to get electircty to a remote place - Handy for low powered uses- solar powered green lights, battery chargers, and helps home energy bills.

** 4. What are the disadvantages of using solar energy? **
- Doesn't work at night - Very expensive to build solar power stations, alothougth the cost is comming down as techonogly imporoves. - Can be unreliable unless you're in a very sunny climate. In the United Kingdom, solar power isn't much use for high-power applications, as you need a large area of solar panels to get a decent amount of power. However, technology has now reached the point where it can make a big difference to your home fuel bills



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