Transcript Emmvee Solar Lightings Technical & Sales Training on Solar

Solar Lightings
• Solar Module.
• Charge Controller.
• Battery.
• Inverter.
• Loads
• Accessories.
A Typical Layout of AC & DC
Solar System
PHOTOVOLTAIC SYSTEMS
• Solar energy can be be harvested in to two
forms, Solar thermal & Solar Photo voltaic As
all of aware of as What is Solar thermal, The
conversion of sun light energy in to heat
energy.
What is Solar Photo voltaic Lighting System.
• The SPV Lighting is a system , That converts
solar energy in to electric energy. & The solar
module converts solar energy in to DC current
suited to power 12 V & 24 V appliances &
batteries. The current depends on the
intensity of solar radiation.
Types of stand alone PV System.
PV-DirectThe out put from PV can be used
directly to appliances such as
water pumps, Lights & Fan.
PV with Batteries.The out put from PV will be stored in
the batteries and out put will be
used at night such as Lights, Fan
TV and other DC or AC electrical
appliances
PV hybrid.The out put from PV will be stored in
the batteries with parallel to grid
or generator complement each
other. This type of system will be
.
used in the larger application
Silicon
Types of Solar Module
•Mono crystalline
•Multi crystalline
MONOCRYSTALLINE
• Mono crystalline Silicon
cell- One single crystal of
a silicon. & They have
single co lour tone. They
do not deteriorate with time
& stable efficiency of 11%
to 16%.
MULTI CRYSTALLINE
• Multi crystalline / Polycrystalline
cell- are saws multiple crystals ,
• which is clearly visible in the
different co lour pattern on the cell.
• They do not deteriorate with time
& stable efficiency of 9% to 13%.
• Although this is some what lower
efficiency than for mono
crystalline.
• The cost price is lower and
resulting price per energy
output(Watt peak) similar.
12 V
24 V
Charge Controller
Controllers: Main functions
• Adequate control of charging process (given the
short time available)
• Protection against overcharging
• Protection against too deep discharge
• Prevention of discharge of battery via module .
• It also provides for the protection arrangement
against the lightning and surges.
CHARGE CONTROLLERFUNCTION
•It has the button to switch ON or OFF
all the lights in the house.
•It shows how the system
perform,through series of LED's.
•Apart from visible functions, There are
electronics in the control the current in
the system.
CHARGE CONTROLLERFUNCTION
• If the battery runs empty, the controller
cuts off the all the excess
loads.
• It minimizes harm to other components
in case of cable damage or short.
Charge Controller- Function
• Green LED - Glow While
Charging.
• Green / Red LED.
- System in Operation
- System Fault
-
Blink with Green.
- Blink with Red.
Charge Controller
Battery
Cabling & Wiring
• Low voltage system require considerably heavier
wiring that 110 V or 220 V systems.
• Example:
100W appliances on 12 V needs a current of
100W/12 Volt=8.3
amps.
The
same 100W appliances on 220 V need a current of
100/ 220 Volt = 0.5 Amps.
• If you remember that the heat losses in cables are
proportion to the square of the current(P=R x I2)
Now you can imagine the importance of thick & short
cables in low voltage system. For any SPVHL System
use 2,4 Sq mm cable between the array & the SDU
with maximum length of 10 meters
“Energy Demand & System
size”
– In order to size a solar system, you must
know the expected energy demand.
– To calculate this , You should , together
with the customer, Fill in daily calculation
sheet.
INVERTER
• Inverters convert DC power from your
renewable energy source into the AC power
needed for powering the appliances in your
home.
• Inverters are grouped in two major categories:
• Those designed to convert solar energy directly into
AC without the use of storage batteries,
• Those designed to provide power from batteries, with
the batteries being charged by any number of
sources.
Daily Load Calculation Sheet
S.No
Appliances
Power
Consumption
(Watts)
1 Lamp1-Living Room
2 Lamp2- Hall
3 Lamp3- Kitchen
4 Lamp4-Study Room
5 Fan – Hall
Total Energy Demand
Daily Use.
Hrs/Day
Daily energy
Demand Watt
Hrs/Day
Daily Load Calculation Sheet
Power
Consumption
(Watts)
Daily Use.
Hrs/Day
Daily energy
Demand Watt
Hrs/Day
1 Lamp1-Living Room
7
2
14
2 Lamp2- Hall
12
4
48
3 Lamp3- Kitchen
7
1
7
4 Lamp4-Study Room
9
3
27
3
45
141
S.No
Appliances
5 Fan – Hall
15
Total Energy Demand
Depreciation
Depreciation Calculation for INCOME TAX-LESS THAN 180 DAYS
Depreciation as per the section 32 of the INCOME TAX ACT 1961
Purchase made between April 1 & Sept 30(LESS THAN 30 DAYS)
EX: AC-900
Rs.124000
80.00%
99200 -1st Year.
Year
1
Price
124000
Dep
99200
Write down the Values
24800
2
24800
19840
4960
3
4960
3968
992
4
992
794
198
5
198
159
40