1. Solar Energy

2. Solar panel Photovoltaic Module/Panel Solar Cells
Generate and supply electricity in commercial and residential applications
Light Energy from Sun
Photovoltaic effect

3. Solar Cell Power calculators to cars Many make up a solar panel
Silicon Layers
Electric Field
Generating electricity
Powering the house

4. Silicon Layers Bulk of cell Where they meet most action takes place
Metal strips conduct flow of electrons
Strong building material
On its own makes poor conductor

5. Electric Field Establish and electric field
Like Magnetic field : just as opposite poles of two magnets attract each other, so do the positive and negative charges in and electric field.
Phosphorus-doped = Negative
Boron-doped = Positive

6. Generating Electricity
Sunlight hits the cell
“photons “knocking loose”
Useless until they reach the electric field at the junction
When reach electric field pushes towards the top silicon layer
Slingshots the electrons out of the cell to the metal conductor strips, generating electricity.

7. Solar Power System

8. Controller
Charge Batteries
Provide power to load
Protect Solar Panel

9. Batteries
Power the load
Ventilation

10. Inverter
Changes DC current into AC current

11. Load What are you Powering? Commonly used for lights