Frequently Asked Questions | Four Solar | Solar Queries

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FREQUENTLY ASKED QUESTIONS

SOLAR PANEL PRICE IN HYDERABAD
WHAT IS SOLAR PANEL PRICE IN HYDERABAD/TELANGANA/INDIA?
Solar Panel price differs from manufacturer to manufacturer. Since we
are a System Integrator, we sell end to end solution and not just solar
panels. We can assist you in this regard, however.
Contact us for detailed pricing.

SOLAR FOR HOSPITALS AND DOCTORS
HOW SOLAR IS IN HIGH DEMAND FOR HOSPITALS AND DOCTORS?
Hospitals are keen to adopt rooftop solar to reduce not just the
electricity bill but CO2 footprint. Any technology should either be an
Enabler or Save Money or Both.
Fortunately, rooftop solar is both. It transforms the way we have been
thinking about power to the new way of self-producing and
consuming, thereby saving money from the first day. This is the only
electrical & electronic system that saves money and gives ROI
between 3.5 to 5 years.

SOLAR FINANCING FOR HOMEOWNER
DO WE GET LOAN FOR INSTALLATION OF GRID INTERACTIVE ROOFTOP
SOLAR? IS THERE ANY POSSIBILITY FOR HOUSING-CUM-SOLAR LOAN?
Though Ministry of New and Renewable Energy (MNRE) had
circulated a notice to all the national banks to promote rooftop solar
by disbursing loans to consumers, the response is not very
encouraging.
However, all banks will give loans for rooftop solar under Retail
(Home or Personal) loans. All loan approvals are subject to good CIBIL
score.

TELANGANA SOLAR POWER POLICY
IS THERE ANY TELANGANA SOLAR POWER POLICY FOR 2020?
State Governments do not have any rooftop solar policy, they only
call for tenders. Policy is being driven by the central government
organization, MNRE.

GOVERNMENT SUBSIDIES FOR SOLAR PANELS
DO YOU KNOW GOVERNMENT SUBSIDIES FOR SOLAR PANELS IN
DOMESTIC HOMES?
Central Government Subsidies for Rooftop Solar. Subsidy is applicable
to Residential segment only.
40% for 1-3 KW
20% for 4-10 KW
20% for Group Housing / Gated Community
No Subsidy for more than 10 KW
No Subsidy for Commercial segment

SOLAR PANELS SYSTEM
WHAT IS A ROOFTOP SOLAR SYSTEM?
It is a system in which solar panels are installed on your roof. It
comprises structure, panels and inverter.
HOW DO SOLAR PANELS WORK?
The panels generate electricity in DC i.e., Direct current which then
flows through an inverter converting DC to AC. We consume
electricity in AC i.e., Alternating Current.

NET METERING
IS SOLAR ENERGY RELIABLE?
Yes. It produces electricity even on cloudy days. Our Satellites also
work on solar energy.
WHAT IS NET METERING?
It is a facility provided by the local DISCOM to automate the process
of import and export. Through net metering import and export of
units are recorded. Units consumed from the grid is imported units
and units given out to the grid is exported units.

SAVE ON MY ELECTRICITY BILL
HOW MUCH DO I SAVE ON MY ELECTRICITY BILL?
Solar capacity is based on your existing consumption. The number of
units generated by rooftop solar system is the units saved from the grid
and you start saving from day one. If we generate 20 units in a day from
solar you save 20 times X.
DO I NEED TO REPLACE PANELS?
Good solar panels last 25-27 years. Therefore you will not have to replace
them until they is damaged due to external factors.

SOLAR PANELS INSTALLATION
HOW LONG DO SOLAR PANELS TAKE TO INSTALL?
 3-10 days, based on the capacity.
DO I HAVE TO RE-WIRE MY HOUSE?
 No you don’t have to re-wire your house if you are on-grid. You may have to if you are
going off-grid.
WHAT ARE THE ENVIRONMENTAL BENEFITS?
 When you install a 1kW solar panel system, CO2 emissions are reduced by 1.46 Tons
per year.

SOLAR PANEL INSTALLATION
WILL I RECEIVE AN ELECTRICITY BILL EVEN AFTER INSTALLING SOLAR
PANELS?
You may or may not receive a bill since that is dependent on your
installed capacity. However you will save money from day one. Please
note that you will still have to pay for demand charges.
IS THERE ANY MAINTENANCE COST?
Maintenance of solar panels does not cost much since there are no
moving parts in the system. For it to perform well, ensure that the
panels are cleaned and monitored regularly.

ROOFTOP SOLAR PROPERTY
HOW DO I KNOW THAT MY PROPERTY IS GOOD FOR SOLAR?
Every property is a good candidate for solar unless it is surrounded by
tall buildings or trees that obstruct the sunlight or throws a shadow on
the rooftop
ARE SOLAR PANELS EASILY BREAKABLE?
No. But since they are mounted at an angle, they may break if there is
an intention

CLEAN SOLAR PANELS
CAN I USE AN AIR CONDITIONER ON SOLAR POWER?
Yes
HOW TO CLEAN SOLAR PANELS?
The time best suited for cleaning the panels is before 8 am or after 6
pm, since during the peak hours the DC voltage is high. It is dangerous
and might hamper with the generation of electricity. They are easier to
clean when wet because the dust can be wiped off easily. For safety
purposes it is advised to use a long handheld wiper while you are
standing on the ground else you could use a soft cloth as well

GROSS METERING
WHAT IS GROSS METERING?
It is a system in which the installed solar capacity’s total generation is
sent to the grid. The government signs a contract with the owner
giving him money for the generation of total units.
IS THE EXISTING ENERGY METER ENOUGH TO AVAIL THE NET
METERING FACILITY?
No, a separate Bi-Directional meter should replace the existing energy
meter to avail of the net metering facility provided by DISCOM.

SOLAR GRID SYSTEM
IS THERE ANY CHANGE OF ELECTROCUTION IN CASE OF GRID FAILURE?
 All the latest solar inverters come with a grid failure feature, that is, the inverter shuts
off when there is a grid fail
WHAT ARE THE DIFFERENT TYPES OF CONNECTIONS?
 The different types of connections are:
 LT which is Low Tension Voltage which are of two types: One phase and Three phase.
In one phase the connectivity level is till 240 V and load eligible for it is up to 5 kW.
Three phase the connectivity level is 415 V and a load range above 5 kW up to 75 kW.
These are generally used by housing and commercial buildings.
 HT which is High Tension Voltage has a load range above 75 kW.

SOLAR ENERGY SUBSIDY
WHAT ARE THE AVAILABLE SUBSIDY FOR RESIDENTIAL SECTORS?
As per the latest 2019 Policy, MNRE has issued a notice with the
following subsidies:
40% up to 3kW
20% from 4 to 10 kW
Flat 20% on group housing or gated communities which is up to 500kW

SOLAR ENERGY CONSUMPTION
HOW LONG WILL SOLAR PANELS LAST?
Good solar panels will last till 25-27 years.
WHY DO YOU NEED TO KNOW MY ENERGY CONSUMPTION?
Your past energy consumption helps us determine a suitable solar
capacity for your home and save you money.

GO WITH SOLAR
WHAT HAPPENS AFTER I DECIDE TO GO WITH SOLAR?
After you decide, we will start with a site survey, design and get your
approval before ordering the materials. We’ll also handle the permits and
other paperwork for you. After installation, we will provide monitoring tools
so that you can track your system’s production.
WHAT HAPPENS WHEN MY SYSTEM GENERATES MORE ELECTRICITY THAN I
CONSUME?
The surplus power flows back into the grid thereby, recording export units
in the net meter.

ROOFTOP SPACE
HOW MUCH ROOFTOP SPACE IS REQUIRED?
Typically, we take 100 SFT per KW for calculation purposes. So, if you
want 5 KW then you will need 500 SFT rooftop area. The total area may
reduce due to panel efficiency.
DO I NEED TO RE-ROOF MY HOUSE BEFORE INSTALLING SOLAR PANELS?
In most cases, no. But if your roof is old, you may have to re-do the roof
to withstand the weight of the solar panels mounted on the structure.
In a few cases, we have suggested our customers to strengthen the
rooftop to mount solar panels; in a couple of cases, we have not agreed
to install panels due to a weak roof

GRID CONNECTED SOLAR SYSTEM
WHAT IF MY ROOF IS SHADED?
If the shaded roof is the only area for solar panels then your roof is not
good for solar. Shade on the panels will reduce the generation up to
80%; it is suggested not to go for solar if your rooftop has shade during
peak hours (10am-3pm). There are ways to work around and we can
suggest after a site visit.
DO BATTERIES COME WITH GRID CONNECTED SOLAR SYSTEM?
No.

SOLAR PANELS GENERATE ELECTRICITY
IN CLOUDY DAYS, DO SOLAR PANELS GENERATE ELECTRICITY?
Yes, even in cloudy day panels do generate electricity. Panels generation
is efficient during sunlight so, the more the sunlight the more the
generation
WHAT HAPPENS WHEN SOLAR PANELS BREAK?
If the panels break during transportation or installation, you are
covered. However, you are not covered through Four Solar for damages
caused by nature like thunderstorms, hurricanes, etc. and physical
damage / theft by someone, etc. You must take insurance; it costs less

IMMEDIATE SUPPORT
WHAT IF THE PANELS STOP WORKING
AFTER INSTALLATION?
The moment we come to know about
the solar panels not working, we take
immediate measures to rectify the
problem. You are assured of a
resolution, since your system is
remotely monitored.

Let’s join the solar
community and
enrich our lives!

6-3-1109/1/P/402, Somajiguda, Hyderabad.
contact@foursolar.com
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