1.
Basics of Solar Photovoltaics
Presented By
Umesh Kubde

2.
(Basic two forms)
Heat Light
Heat > Thermal Applications like , Steam generation, water heating, drying, cooling etc..
Light > Electricity , and Lighting Applications.

3.
What is Photo-voltaic ?
• Photon or light generated voltage.
• Generation of a DC current when exposed to light,
(mostly sunlight).
• Use “PV Cell” for conversion. (Transducer)
In its basic forms :

4.
n-type
semiconductor
p-type
semiconductor
+ + + + + + + + + + + + + + +
- - - - - - - - - - - - - - - - - -
Physics of Photovoltaic Generation
Depletion Zone

5.
Solar PV Cell Technology
• The first generation of PV technologies used crystalline structure of silicon
(Si) to produce the solar cells
• Today, a number of technologies and materials are used to make solar
cell. Among the most common are:
•

6.
Components of solar PV system
• The major components of rooftop solar PV system :
• PV array ( a group of solar PV modules combined in series/ parallel)
• Inverter
• Array mounting structure
• Balance of system (BoS) components
• Transformer (required for large rooftop system)
PV Modules
Mounting
frame
Junction Box
DC Cabling
Solar Array Isolator
Inverter AC Cabling
Main Switch
Solar Supply
Meter
Switchboard
Power Grid

7.
PV System Types
• Stand-alone System
– Without battery backup
– With battery backup
– AC system
– DC system
– Hybrid
• Grid connected System
– Without storage
– With small storage
– Hybrid

8.
Simple Direct Drive PV System

9.
Simple DC PV System
with Battery Storage

10.
AC PV System with Inverter

11.
Hybrid PV/Generator System

12.
Utility-Connected (Line-Tie)
PV System

13.
Rural development of a country is measured
by some indicators-such as
1)Agricultural production
2)Educational facilities
3)Health service improvement
4)Commerce and business facilities
5)Law and order conditions
6)Economic activities, income generating
activities.
(World Commission on Environment and
Development Report)

14.
IMPACT OF SOLAR ELECTRICITY ON RURAL DEVELOPMENT
A) SOCIAL IMPACT
1) Change in Daily Work Schedule
2) Longer working hours
3) Access to Information and Entertainment
4) Economic Impacts
5) Promotion of Small Enterprises
6) Income Generating Activities
7) Reducing transportation cost for Kerosene and Battery purposes
B) EDUCATIONAL IMPACT
1) Literacy rate
2) Educating the Adult People
C) IMPACT ON REDUCING SOME HUMAN DISEASES
1) Eye irritation 2) Coughing and Bronchial diseases
D) IMPACT ON GENDER DIMENSIONS Women's (empowerment, changing status)
E) IMPACT ON REDUCING OUT-MIGRATION TOWARDS URBAN AREA
F) IMPACT ON ENVIRONMENTAL PROTECTION

15.
THANK YOU FOR ATTENTON!