PHOTOVOLATAIC SYSTEMS
SHAGG ENERGY LTD
www.shaggenergies.com

DEFINITION TO SPV
 Definition: A Photovoltaic (PV) system is an electrical system
consisting of and array of one or more PV modules, conductors,
electrical components, and one or more loads.
 In More descriptive & simple words:
 Solar cells, also called photovoltaic (PV) cells by scientists,
convert sunlight directly into electricity. PV gets its name from the
process of converting light (photons) to electricity (voltage),
which is called the PV effect.
 ----- Grid Tie –Systems
 ----- Off Grid Systems

BASIC COMPONENTS IN SPV
 1. Modules – solar electric collectors. 3 basic types in the marketplace:
Mono crystalline, poly crystalline, thin film
2. Array – modules connected together into a system

3. Inverter – converts the DC power produced by the modules to A/C
 4. Grid Tie Inverter – converts DC to AC and feeds the utility grid with
the A/C power
 5. Charge Controller – regulates the power going to the batteries
 6. Batteries – stores DC power

HERE SOME PICTURES OF A MODULE, CONDUCTORS,
AND ASSORTED ELECTRICAL COMPONENTS.

GRID TIE- GRID CONNECTED SYSTEMS
 Grid Tie System is the simplest and
most cost effective way to connect
PV modules to regular utility power.
Grid-Connected systems can
supply solar power to your home
and use utility power as a backup.
 As long as there is enough
electricity flowing in from your PV
system, no electricity will flow in
from the utility company.
If your system is generating more
power than you are using, the
excess will flow back into the grid,
turning your meter backwards

GRID TIE- VARIOUS TYPES OF INSTALLATIONS

GRID TIE- VARIOUS TYPES OF INSTALLATIONS-
CONT..

GRID CONNECTED SYSTEMS – WORK DESIGN

NET METERING
 With Net Metering you can benefit from laws and regulations that
require "net" electric meter reading.
 How it Works:
The customer is billed for the net electricity purchased from the
utility over the entire billing period—that is, the difference
between the electricity coming from the power grid and the
electricity generated by the PV system.
Through net metering, the customer obtains the full retail
electricity rate—rather than the much lower wholesale rate—for
kilowatt-hours of PV- produced electricity sent to the utility power
grid.

OFF GRID SYSTEM
 Although they are most common in
remote locations without utility service,
off-grid solar-electric systems can work
anywhere. These systems operate
independently from the grid to provide
all of a household’s electricity. These
systems require a battery bank to store
the solar electricity for use during
nighttime or cloudy weather, a charge
controller to protect the battery bank
from overcharge, an inverter to convert
the DC PV array power to AC for use
with AC household appliances, and all
the required disconnects, monitoring, and
associated electrical safety gear.

OFF GRID SYSTEM-VARIOUS INSTALLATIONS

OFF GRID SYSTEM-VARIOUS INSTALLATIONS

OFF GRID SYSTEM - WORK DESIGN

Do You Have
Any Questions?
Please free to reach us at 0141-5108383,
9024021051