Hello Friends, Today we are here at Old Faridabad
we have with us Mr. Hemant Gupta
from Green Energy Solutions
He has installed a 5kWh Solar Panel system
at his home
Let's find out and know from him about it.
Welcome Hemant! Thank you for joining us.
Thank you Farah.
Tell us about Green Energy Solutions
Green Energy Solutions is a Proprietorship firm which we started
2.5 yrs back. The main purpose was;
for those who are unaware about Solar Sytems
or those paying a huge price and
still finding their system inefficient;  to help them
we started the firm. For now we have
installed 8 KW plant in Faridabad Sector 21
in Sector 9 and Sector 22
Like wise other small residential segments
are targeted because
there is a lot of competition in commercial segments;
nobody to educate in the residential segment
Keeping this purpose in mind
we started the firm
Hemant, we see that you have installed a 5KWH
Solar Panel System
Does it cover
all your requirements at home?
Yes, It covers all our needs. Initially,
while experimenting we started
with 2kWh because we were unaware
of our needs. As we saw our requirement increase
our saction load is 6 kW
We upgraded to 5 KW
About the system, We installed it for R&D purpose
we installed 2KW Mono Crystalline Panels
and then 3KW Poly Crystalline Panels
In real life situation, on such a small setup
you will never be able to find a difference between Mono and Poly Crystalline Panels
even in terms of efficiency, you will not be able to differentiate
which of the two are performing better
This system involves Panels,
the structure is hot-dip galvanised
which means a normal Iron structure is fabricated
then dipped in Zinc for 24hrs
that forms a coated layer on it
such that even if it's submerged in water
it does not rust.
Secondly, The Invertors! On-Grade invertors
you have options like Schneider,
Delta, Polycab, Havells, Waree
I have installed Schneider
which is the top brand
5KW Single Phase Grid time Invertor
it manages to generate
approximately 23 - 27 units
by the end of winter
it reaches peak 31 units, which is
great for these panels as far as efficiency is concerned
The cables used matter a lot too
not meant for normal AC cables
because the cable carry DC currents inside
and the AC wires carry AC current outside
so if you use AC wires it might heat up
Initially, I was also unaware and used 16 sq mm
AC Cable because the DC Cables
were not available 5 yrs ago
My wires used to heat up. As soon as
DC Cables were available in the market, I replaced them.
There are many brands but the important factor
is that the wire should be double insulated
which is thicker than the normal wire.
It looks silver coated
which we know as Zinc coating / Tin Copper coating
The difference between Bare Copper and Tinned Copper is
Bare Copper gets rusted. Tinned copper there are less chances
where there is humid environment and more moisture
tinned copper is beneficial to use.
As this system is 5 yrs old, the cost then was also very high
I spent around 5 L rupees
Today you can get this entire system for half the cost
5kW system would cost you 2.5L or
3 L depending on your structure
as in normal roof structure
then in 2.5L, your panel system can be installed
If you have an elevated structure where there is a shadow
you might need to increase the height. In that case
the cost may increase to 2.7 - 3L depending on your location
Right!
So Hemant ji, when you started
you installed batteries to your system
and today you are using net-metering
how was your user experience?
In an Off-Grid System and On-Grid System
there are two basic things to be understood
One is cost and second is the batteries that you have installed
give you how much backup.
In an Off-Grid System, we install more batteries
for more backup and incase you feel its short
you can add more batteries to your system
but that also increases the cost.
We calculate Rate of returns on our investment
and by when. So in an Off-Grid System
you never get the money back. Because even with
5 yrs warranty on your battery.
You will have to change the battery after 5 yrs.
The cost gets added again
and same every 5 yrs. So you don't achieve your ROI
In an on-Grid System, there is no
battery cost. If govt. subsidy is available
recovery time lessens. Even if no subsidy
the amount you have invested gets
recovered in 4-5 yrs, depending on your
system. Say, 5kW system
you recover the cost in 5 yrs.
if a 10KW system then recovery period 4 yrs
50 KW or 100 KW big commercial plants
the cost recovery is within 1 or 2 yrs
Secondly, Batteries used in Off-Grid
are Lead-acid, the biggest drawback is
you have to charge fully
but are unable to discharge completely.
If you go below 20% in Lead-acid Batteries
they go dead, become useless.
If we use Lithium Batteries in Off-Grid System
the success rate increases but the cost is an important factor.
You will see that the comparative cost
is very high to Lead-acid batteries.
These considerations are not there in on-Grid System.
If Electricity and PowerCut is an issue, you cannot choose On-Grid System
In my personal experience, I faced charging issues.
I had Off-Grid System
with 8 batteries but I would lose Backup
in the night. I would have to switch manually to the grid.
As soon as the government introduced Net-Metering Policy
we realized, these losses I am incurring
with discharge and cost of battery can be covered
with an On-Grid System. So we shifted the entire
2KW and 3.5 KW system
to the On-Grid System.
Here in Delhi and Haryana,  What is the
process of net-metering, the cost and what did you face?
Delhi and Haryana have different Government and processes.
Different Govt. brings different policies and procedures.
Speaking about Haryana, for net-metering
you have to visit
Hareda website and apply for subsidy
then your application
is approved by the project officer, after which you install the system.
then you have to approach DHBVN.
The electricity authority will visit your site
They check feasibility. As per the. rules
you can install only 90% of your sanctioned load.
The transformer could get damaged if not adhered to.
So the authorities come and verify.
When your application gets approved, the project officer
will give a final approval that you can go
ahead with the installation without hassles.
Another important thing, the policy is new
been only 2 yrs so availability of net-metering is an issue.
If you have meter readily available
you can easily install the net-meter
which takes 7 - 10 days
If meter not available then to complete formalities
it might take 1 - 2 months. It took me 4 months as
the policy was recently launched and everyone was equally unaware.
so had to run about to get this all done.
Speaking about Delhi, the process is easy
the government is different
secondly, they are promoting these activities
Major different between Haryana and Delhi policy is
if you have given excess generated energy to the govt.
the Haryana Govt. does not give you money, it gets adjusted in the bill
at the end of the year, it gets balanced out.
In Delhi, for all the additionally generated energy
Govt.  pays you 50% back by cheque
this is a major difference between the two
Hemant, tell us about the subsidy. Is it
availed from Central or State Govt.?
Is it easy to get a subsidy?
Talking about subsidy, the Delhi Govt. does not
give subsidy. Earlier Central Govt. used to give through MNRE
Solar Energy Corporation of India -. (SECI) gave subsidies earlier
But MNRE closed
these policies 1 - 1.5 yrs back and
put the burden on the State. Haryana Govt. used to give
30% subsidy from the beginning
now from 20th June, the subsidy has been stopped
because, DISCOM - the electricity company
is taking over the entire process.
We hear,  that 20% subsidy will be given
For those who have less than 4KW system
40% subsidy will be given. Talking of process,
Log on to Hareda website
http://www.dnreapplyonline.gov.in/
we submit our application there
The application reaches project officer,  referring to my area
Central Secretariat office Sector 12 falls under me
The concerned project officer there
visits your home
checks for any existing system
If there is the feasibility of a new system installation
he will approve your application.
After approval, you can approach any vendor or you can do it yourself.
The system should be according
to the policies, rules, and regulations of the government.
After installation, the project officer needs to be re-informed
for a Post-installation check.
to see if it's according to the policies.
The project officer will visit
will check and if in order
then you will be given a Provisional Certificate
after which you can install a Net-Metering system.
The role of Project Officer ends here
The role of DISCOM starts here
The process for net-metering starts
once satisfied, he will ask for a final
approval from Project Officer to
install net-metering
Once Project Officer is informed and he approves
The net-metering procedure gets completed.
In Delhi, there is no subsidy,
so you don't have to go through all this.
Directly contact the Electricity distribution company
inform them of your desire to set up the system
the same process will apply with little different documentation.
but there is no subsidy by Delhi Govt.
We get asked lot of questions on our YouTube Channel
If we live in an apartment
Can he install solar panels?
If you have roof rights,
if you live on the top floor you can do anything.
If you don't have roof rights,
like in a society, you would have to
speak with Society President or local representatives you can install
if they don't have any issues.
Terraces are shared and if you don't have roof rights
the roof is accessible to all
you can install the plant if nobody objects.
depending on the space on the roof as well.
What about an independent user, like a bungalow similar to yours?
Its a very feasible system for them
One, it's an independent power generation system
roof rights are also with them
and if there is no obstacle on the top of the house
one can easily install the system.
In Haryana,
You have to consider, the system you want to install,
the capacity should be according to the rules.
If the sanction load on meter is 10KW, as per rules
you can apply for only 90%. Plus the roof size
should permit the installation
Another important aspect, in Faridabad, lot of building are old.
if your building is very ancient and old
can it take the load of the solar system
How do you maintain the panels?
What is the cost of Maintenance?
There is no real maintenance of panel required. 
Mono-Crystalline Panel is a normal glass
never use surf or 
strong detergent
that might damage glass.
We have hard water with salts in Haryana that can damange the glass.
clean with normal water.
Just wipe off with a cloth.
Never clean in sun, glass is hot. It won't break but
it might get damaged or 
you might get an electric shock.
Currently, I am touching it safely.
it has been properly earthed.
Or else you might feel the electric shock.
DC Current is stronger than AC current.
5KW AC current is different from 5KW DC current.
You might feel DC is stronger.
The panels are covered for 25 years.
The company gives 10 yrs product warranty.
Any manufacturing defect will be rectified free of cost.
For another 15 yrs, you get 85% performance warranty
which means if your panel's efficiency is 
less than 85% they will change it free of cost.
In Haryana, for 5 yrs
Govt gives AMC free if you have availed subsidy
which covers the invertor, structure
and also covers panels.
Other than this no other maintenance is required.
Just cleaning.
This is an On-Grid Inverter.
It's from the top-brand Schneider.
recognized in the entire industry.
This inverter converts DC into AC current.
Here you see two strings as I have
two sets of panels and a power line.
Single Phase
Where the proper current is passing. Along with this
there is a protection device to protect DC Wires
from lightning strike
It arrests the Surges
reduces the surge and protects the system
from damage.
The last box is a Solar Charge controller
which I used for Off-Grid System.
Only charges batteries
Converts DC into DC
while the On-Grid Inverter converts DC to AC
In case of electricity failure, the system shuts down, a safety measure
Its called Anti-aligning. The purpose is, if
the grid has been intentionally closed, a lineman is working
this device
should not become the reason for his death.
This is the reason why it shuts down.
It has shut down, and now it's back and working.
As we noticed, Hemant also has an electric car
you charge your car using the current from solar system
Does it meet all the needs
requirements of the house?
including the charge of the car? Yes, all our needs.
Our load includes 2 airconditioning, 
1 electric car, In North India
It's very hot in summers, 
comparatively less cold but need heaters
Car consumes 5-6 units.
The total home load is 30 units on a hot day.
The solar plant gives 27-30 units.
on an average 23 units.
Solar Energy meets my yearly consumption.
Entire bill is 1000-1200 Rs for 2 months.
which is very low for a 2 storey building house.
The actual figures are very less compared to the load.
Thank you very much, Hemant for all the information.
that you explained to our viewers in detail.
about setting up solar panels in house.
Thank you very much.
