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Transcript of Solar Energy
Solar Energy- radiant energy emitted by the sun
Energy Produced and Used in America
1% of America's energy produced and used is solar energy.
A renewable resource is any natural resource that can be replenished with the passage of time.
Solar energy is a renewable energy source.
Renewable or Nonrenewable
the power of the sun is absolutely free
no maintenance is required during the lifetime of the system
lifetime of a system is 30-40 years
solar panels are very expensive
solar energy needs sunlight to produce electricity, so if it is cloudy or foggy it will not produce as much electricity
if you live in a foggy area you will need to buy more panels
companies need a lot of space for the panels
Major World Users
1) Germany-9,785 mega watts
2) Spain- 3,386 mega watts
3) Japan- 2,633 mega watts
4) United States- 1,650 mega watts
5) Italy- 1,167 mega watts
6)Czech Republic- 465 mega watts
7) Belgium- 363 mega watts
8) China- 305 mega watts
9) France- 272 mega watts
10) India- 120 mega watts
Is it Easy or Hard to Harness
Solar energy is difficult to harness because it is very hard to make solar panels and you have to make a lot for each place you install them. After you install the panels the harnessing of the sun's energy is pretty easy.
Although the sun is over 90 million miles from the Earth it takes less than 10 minutes for light to speed across that distance.
Solar energy has been used for over 2,700 years! In 700 B.C., glass lenses were used to make fire by magnifying the sun's rays.
Solar energy is a clean energy source that uses radiant energy from the sun.
It has it's advantages and disadvantages, but i think that it is a great way to supply electricity
by Orla Goss
How it Works
Light hits your roof with photons(particles of sunlight). The solar panels convert those photons into electrons of direct current electricity. The electrons go from the solar panel into an inverter. The inverter converts the direct current power (commonly used in batteries) into alternating current power. (alternating current power is the electrical format that your computer uses).
Solar Energy Graphs
solar panels first appeared on the market in 1956.