introduction to off grid solar power system
TRANSCRIPT
Introduction to Off Grid Solar Power system
By Shoeb Ali Khan
What you will get?
Overview of Off grid solar power system
Applications
Components in off grid solar system
Off Grid Solar Power System
System Overview
Off Grid Solar Power System
System Overview
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 installationPhoto: Sunset Solar
Off Grid System for DC load
Applications of off grid system
Off-Grid-Systems for Residential
Source: Stefan Trittler, Energiebau Solarstromsysteme GmbH
Applications of off grid system
Off-Grid-Systems for Industrial
Applications of off grid system
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
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
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
Off-Grid-Systems – Clinics, Schools, Hospitals
Lighting Low-Power Medical
equipment Refrigeration Vaccine Cold Chain
Applications of off grid system
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
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 unit
Housing, embedded in basement
Battery
LED Lamp unit with reflector
Solar module, tilted to South
Steel mast
Applications of off grid system
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
Off Grid System for Drinking water
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
Village power- Mini Grid System
Applications of off grid system
Village power- Mini Grid System
Applications of off grid system
Off Grid Solar Power System
Off grid system design
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)
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
PV Array
Off grid system components
PV Array- Real view
Off grid system components
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
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
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
