1. Solar Power
Reshad, Gabbie, Jacob

2. History Edmond Becquerel discovered the photovoltaic effect in 1839
Solar Cell was created by Russell Ohl in 1941
The usage of solar power has increased about 76% every year for the past 7 years

3. How it Works
Solar panels work by collecting photons of light energy from the Sun. For optimum efficiency solar panels should be dark and coated glass to decrease the light reflection and to increase absorption
Photovoltaic cells, which make up solar panels, convert sunlight energy into a direct current
When sunlight hits the photovoltaic cells they release a set of electrons to create a direct current

4. Advantages
Clean
Inexhaustible
Cheap
Incentives

5. Disadvantages
Low output
Weak Efficiency
Inconsistent

6. Affordability Over a billion people don’t have electricity
While the upfront costs may be a lot, solar power is becoming cheaper and cheaper to maintain.
The cost of solar energy has decreased 45% and is continuing to decrease as changes in technology make it more affordable

7. Formula for Solar Energy
The formula to estimate the annual amount of electricity generated in output of a photovoltaic system is :
E = A * r * H * PR
E = Energy in kilowatt hours
A = Total solar panel array area in meters squared
r = Solar panel efficiency (%)
H = Annual average solar radiation on the tilted panels
PR = Performance ratio of the panels

8. Sankey Diagram

9. Sources