1. Introduction to Off Grid
Solar Power system
By Shoeb Ali Khan

2. What you will get?
 Overview of Off grid solar power system
 Applications
 Components in off grid solar system

3. Off Grid Solar Power System
System Overview

4. Off Grid Solar Power System
System Overview

5. Off-Grid-Systems – PV Applications
 Solar home systems (SHS)
 Clinics, schools
 Rural businesses
 Tourism
 Solar water pumping
 Solar mobile charging
stations
 Telecom, two-way radio
 Street lighting and signs
 Mini-grids
 Small portable appliances
Solar-powered
telecom installation
Photo: Sunset Solar

6. Off Grid System for DC load
Applications of off grid system

7. Off-Grid-Systems for Residential
Source: Stefan Trittler,
Energiebau Solarstromsysteme GmbH
Applications of off grid system

8. Off-Grid-Systems for Industrial
Applications of off grid system

9. Off-Grid-Systems – Applications for home lighting
1. Solar lamps with community charging
 It contains a CFL / LED lamp and a
rechargeable battery. These lamps are
charged at charging stations run by rural
entrepreneurs.
2. Solar lamps with individual PV panel for
charging
 It contains CFL / LED lamp, rechargeable
battery and an individual solar panel. These
solar lamps recharge during the day.
Photos: Pratima Bisen Kanudia, KanORS-EMR,
India
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Applications of off grid system

10. Off-Grid-Systems – Applications for home lighting
Solar home lighting systems:
 This consists of a single solar panel /
module mounted on the roof,
connected via a voltage regulator to a
battery
Solar micro grid systems:
 Solar micro grid systems consist of a set of
solar photovoltaic panels for electricity
generation, a battery pack for charging
and storage of electricity for night or
anytime when sun is not there and small
scale version of the centralized electricity
system, established by the community
being served.
Photo: Pratima Bisen Kanudia, KanORS-EMR,
INDIA
Applications of off grid system

11. Off-Grid-Systems – Small Portable Appliances
 Solar lanterns
 Pico-solar
 Power
supplies for
laptops
5Wp Pico-Solar System with LED lamps
Applications of off grid system

12. Off-Grid-Systems – Clinics, Schools, Hospitals
 Lighting
 Low-Power Medical
equipment
 Refrigeration
 Vaccine Cold Chain
Applications of off grid system

13. Off-Grid-Systems – Solar ATMs
 Solar ATM’s can help the
cause of financial inclusion,
by bringing bank ATM’s to
places which do not have
electricity.
Applications of off grid system

14. Off-Grid-Systems – Street Lighting and Signs
 Can be more cost
effective than extending
the grid
 Public squares, roads
 Private, e.g. airport,
parking lots, advertising
Control unitHousing,
embedded in
basement
Battery
LED Lamp unit with
reflector
Solar module,
tilted to South
Steel
mast
Applications of off grid system

15. Off Grid System for Pumping
Solar water pump system is the
best solution for running water
pumps in remote areas where
GRID supply is either erratic or not
available at all.
Applications of off grid system

16. Off Grid System for Drinking
water

17. Off-Grid-Systems – Tourism
 National Parks
 Lodges
 Large potential market
 Noisy Generators
replaced
Solar-powered Boat , Berlin, Germany
Solar Taxi Boat, Lake Pichola, Udaipur,
India
Applications of off grid system

18. Village power- Mini Grid System
Applications of off grid system

19. Village power- Mini Grid System
Applications of off grid system

20. Off Grid Solar Power System
Off grid system design

21. Off grid system components
• PV Array
• Solar Charge Controller
• Battery Bank
• Inverter
• Load (AC OR DC)
• Generator(Optional)
• Required electrical safety gear (i.e. fuses,
breakers, disconnects)

22. PV Array
It is commination Of PV Modules In series
and Parallel
 Module in series : String
 Strings in parallel : PV Array
Off grid system components

23. PV Array
Off grid system components

24. PV Array- Real view
Off grid system components

25. Solar Charge Controller
Charge regulators or just battery regulators
• The main function is to protect the batteries
• Block Reverse Current
Types Of controller
• PWM Charge controller
• MPPT Charge controller
Off grid system components

26. Battery Bank
• Storing Energy in daytime.
• Battery bank is essentially a group of batteries wired
together.
• Lead Acid type batteries are most common in Solar PV
system
Off grid system components

27. Off grid Inverter (Stand alone Inverter)
• Draws its DC energy from batteries charged by Charge
Controller.
• Do not interface in any way with the utility grid.
• Many stand-alone inverters also incorporate integral
battery chargers to replenish the battery from an AC
source.
Most inverters are
not designed for
use in off-grid PV
systems
Off grid system components

28. Your Trainer:
Mr. Shoeb Ali Khan
shoebkhan4@gmail.com
THANK YOU
FOR YOUR ATTENTION