The document discusses solar energy, a renewable energy source harnessed from sunlight using various technologies, classified as passive or active solar methods. It outlines the components of solar panels, different types (monocrystalline, polycrystalline, and thin film), their efficiencies, advantages, and disadvantages. Additionally, it explains how solar panels generate electricity through the photovoltaic effect, discovered by Alexandre Edmond Becquerel in 1839.

2. • Introduction.
• Solar panel parts.
• Types of solar panels.
• Advantage and disadvantage of solar panels.
• How it work?
• Advantages And Disadvantages of Solar Energy.
• Summary.

3. INTRODUCTION
 Solar energy is radiant light and heat from the Sun harnessed
using a range of ever-evolving technologies such as solar
heating, photovoltaics, solar thermal energy, solar architecture
and artificial photosynthesis. It is an important source of
renewable energy and its technologies are broadly characterized
as either passive solar or active solar depending on the way they
capture and distribute solar energy or convert it into solar power.
Active solar techniques include the use of photovoltaic systems,
concentrated solar power and solar water heating to harness the
energy. Passive solar techniques include orienting a building to
the Sun, selecting materials with favorable thermal mass or light
dispersing properties, and designing spaces that naturally
circulate air. The large magnitude of solar energy available
makes it a highly appealing source of electricity.

4. WHO IS THE INVENTOR OF THE SOLAR
PANELS
In 1839 Alexandre Edmond
Becquerel discovered the
photovoltaic effect which
explains how electricity can
be generated from sunlight.

5. SOLAR PANEL PARTS.

6. TYPES OF SOLAR PANELS:

7. ADVANTAGE AND DISADVANTAGE
OF SOLAR PANELS:
1. Single- crystal or Monocristalline silicon:
• Most efficient 11% - 14%.
• Most expensive .
• Wasted space.
1. Poly cristalline or Multi – Cristalline silicon:
• Less expensive.
• Less efficient 10% - 12%.
• No wasted space.

8. 3. Amorphous – Thin Film:
• Most inexpensive.
• Efficiency 6% - 8%.
• Can deposited on flexible area.

9. #COMPARE BETWEEN TYPES :

10. HOW IT WORK?
A solar panel works by
allowing photons, or particles
of light, to knock electrons free
from atoms, generating a flow
of electricity. Solar panels
actually comprise many, smaller
units called photovoltaic cells.
Photovoltaic simply means they
convert sunlight into electricity.

11. HOW IT WORK?
 Pleas be attention.
 https://youtu.be/xKxrkht7CpY

12. ADVANTAGES AND DISADVANTAGES OF
SOLAR ENERGY.

13. REVIEW