Frequently Asked Questions

How Series string work with solar Panels?

When wiring solar panels in series, the volage is additive, but the amperage (current) remains the same.
eg. If you had 4 solar panels in Series and each one is rated at 10 volts and 5 amps, the entire array would be 40 volts and 5 amps.

How Parallel string work with solar Panels?

When wiring solar panels in parallel, the amperage (current) is additive, but the voltage remains the same.
eg. If you had 4 solar panels in parallel and each one is rated at 10 volts and 5 amps, the entire array would be 10 volts and 20 amps.

How net-metering works?

For better understanding pls. check diagram Click Here...

What kind of warranty & guaranty are in solar systems?

A solar panel’s product warranty covers the integrity of the panel itself, and protects you against failures due to manufacturing defects, environmental issues, premature wear and tear, etc. and we work with those companies that have at least 15-25 years of warranty on panels.

What kind of warranty & guaranty are in solar systems?

A solar panel’s product warranty covers the integrity of the panel itself, and protects you against failures due to manufacturing defects, environmental issues, premature wear and tear, etc. and we work with those companies that have at least 15-25 years of warranty on panels.

What is Solar Energy?

Solar Energy is radiant energy emitted by the sun or power obtained by harnessing the energy of the sun's rays.

What is PV (Photovoltaic) Cells?

A photovoltaic cell (PV cell) is a specialized semiconductor diode that converts visible light into direct current (DC). Some PV cells can also convert infrared (IR) or ultraviolet (UV) radiation into DC electricity. ... Large sets of PV cells can be connected together to form solar modules, arrays, or panels.

What is PV (Photovoltaic) Panel?

Photovoltaics are best known as a method for generating electric power by using solar cells to convert energy from the sun into a flow of electrons. The photovoltaic effect refers to photons of light exciting electrons into a higher state of energy, allowing them to act as charge carriers for an electric current.

How it help the Environment & Nature?

Solar power systems produce electric power with no carbon dioxide (CO2) waste, thus contributing to cleaner air and fewer greenhouse gases. Greenhouse gases, which are produced when fossil fuels are burned, lead to rising global temperatures and climate change.

What is Cell efficiency and Panel efficiency & difference?

Cell efficiency refers to the portion of energy that converts sunlight into electricity through the photovoltaic effect.
Solar cell efficiency refers to the portion of energy in the form of sunlight that can be converted through photovoltaics into electricity.

How warranty works for solar systems?

Solar systems from reputed companies generally comes with a manufacturer’s warranty which includes battery and inverter warranty upto 5 years. The warranty period for solar panels can even last up to 25 years but on the basis of the performance of solar panels.

How many units will 1KW solar system generate in a Day / Year?

Day – 4.5-5.0
Year - 1642.5(4.5*365) - 1500(5.0*300)kWh

What are the savings on electricity bills?

Government provides subsidies to consumers who buy solar systems. The subsidies available are: 30% at cost to consumers in general category states and 60% at cost to consumers in hilly areas, north eastern states. It differs from state to state.

Can Air Conditioner be run on solar system how much for 1 ton AC / 1.5 Ton AC / 2 Ton AC?

Yes, you can run an AC on a solar power system.

AC Solar Systems(KW) No of Panel
1 ton AC 1300-1500 watts(1.3-1.5KW) 315W - 5 Panel
1.5 ton AC 1800-2000 watts(1.8 KW-2.0KW) 315W - 7 Panel
2 Ton 2500 watts(2.5KW) 315W - 9 Panel

Is solar Power good for India?

  • As per NASA, sun is available at least 300 days / year in India.

  • Generate your own electricity.

  • Reduce your electricity bills.

  • Solar panels require little maintenance, rarely break or wear out, and can last for up to 25 years, providing you with clean, consistent energy.

  • They make future bright for its residents and leave a legacy of clean energy and a strong, unsoiled, environment for generations to come.

Can we use regular Inverter for solar systems? How they are different.

No regular invertors dont have a option for solar charging input if its their yes you can. Or you can use panels with DC charge controller directly for your battery charging.

What is the approx. cost of a solar systems as per standards?

The approx. cost of a solar systems as per standards is 55,000-75,000.

How much maintenance require for solar systems?

Solar panels require less maintenance – no need to wash daily. It is important to place panels where they will remain clear of shade and debris. It does require cleaning when required. Just make sure no water is logged or no layer of dust is formed so that the system works at its full efficiency.

Solar system is 1- Phase or 3-Phase?

Both type of systems are availableThe residential generally require 1-phase. However, industrial generally require 3-phase systems.

What is On-grid & Off-Grid systems?

An on-grid or grid-tie solar photovoltaic system is when your solar photovoltaic system is connected to a utility source or electrical service provider. On-Grid Systems only generate power when the utility power grid is available.
Off Grid Solar Systems do not need to be connected to mains power. As there is no ready source of reserve power, they rely on generators or storage batteries to provide electricity on days when the solar panels generate less electricity than is required, e.g. on cloudy days or at night time.

What are the subsidies?

Government offers up to 30% subsidy. State governments offer 20% for on-grid systems only. But they differ from state to state.

Does the power (one generates) get used in the property first or sent to the grid first? 

The electricity from the solar power system will get used in your property first. Only the excess gets supplied to the grid.

What is a Net Metering?

Net Metering means solar power generated is used by the home first and then excess energy supplied to the grid for which you will be paid or your bill adjusted at a fixed rate by the local government. Net meter measures the difference between power generated and power used.

What is the difference between Net Metering and Gross Metering? 

Net metering measures only the difference between what your solar power system produces and what you consume.
Gross metering measures all the power your solar panels produce and all the power that you use in the house.

Do you offer maintenance service?

Yes, we do.

Can it be financed?

Yes. Consider using a loan for the purchase of a solar system apart from taking full advantage of subsidies or any tax deductions.

How long will it take to install a solar power system in my home?

It is very much depends on the load you want as Kw, the height of the structure to be build. It may take 5 days to 3 weeks to plan, supply, install and commission the order for 20 - 50 KW.

Are solar panels right for my home?

There are factors that you need to check.

  • Does your terrace/roof get much sun exposure?

  • Is the exposure free of trees and buildings?

  • What's the pitch of your roof? Normally need from flat to 60 degrees.

  • Does solar make sense for your budget?

How much sun do solar panels need?

Sunlight is important for solar, so even cloudy days are ok for solar energy. Only the generation of electricity very.

How much space do I need for a solar photovoltaic system?

This simple thumb rule will give you an idea: 1 KW system requires anywhere from 70-100sft based on the size of the panels.

How much shading is too much for solar photovoltaic panels?

Unfortunately shading a photovoltaic system dramatically decreases its output. Just shading the bottom row of wafers alone amounts to an 80% reduction in efficiency.

What is the angle & direction of solar panels?

The direction is solar panels are south-facing and the angle is between 20 to 25 degrees. 

Will solar panels work if my roof isn’t new?

In general, we recommend that your roof be less than 15 years old if you decide to go solar. If your roof needs to be replaced or repaired, it's best to do so before you get solar. However, we will suggest only after examining the roof.

Which is better roof top or ground mounting?

It totally depends wherever the conditions are the best. Below are some points to judge which is best.

  • Rooftop solar arrays are restricted by the characteristics of the roof on which they are installed. If your roof isn’t at the right angle, doesn’t face south, or has obstructions like chimneys or skylights, then your solar array will be less productive. On the other hand, ground mounted solar panels can be located wherever the conditions are best.

  • In addition, if your home uses a lot of electricity, your roof might not be big enough for a solar energy system that meets your electricity needs. In contrast, ground mounted solar systems can be sized to match your electricity consumption without the space restrictions of a rooftop system.

What happen when its rain or fog?

Solar panels will still work even when the light is reflected or partially blocked by clouds and rain, yes the efficiency goes down or generation of electricity goes down but not stop.

If the grid fails, will my home solar power system keep producing electricity?

If it is off-grid, it will work through solar and batteries; if on-grid, it will automatically shut off to protect the workers on power lines from being exposed to live electricity.

How much will I be paid for the electricity I generate? 

Your bill will be adjusted for electricity exported to the grid. Please check with your local government’s fixed rate for excess energy generated its lettle less then what you are paying for grid electricity.

How does solar water heater work?

A solar water heater system is different from solar power system. Solar water heater works by collecting Sun’s heat and transferring it into water container that is used for your hot water needs. It is thermal-based whereas solar power is light-based.

Can we use regular batteries for solar systems?

Yes but Tubular C10 batteries are recommended for longer life, more storage and efficient discharge. 

What kind of material used in solar mounting structures? Is they work for 25 years?

Stainless steel, MS mild steel, GI galvanized steel, Aluminum material very as per the site requirement.

What are the cables?

Solar Power Cables are part of Allied Wire & Cable's stock of green energy cables. Solar Power Cables such as USE-2 and Photovoltaic (PV) Wire are used as wiring for solar panels, underground service entrances, and service terminal connections.

Electric wire's mm^2 and their Diameter in mm

Wire mm^2 Diameter mm
.75 1
1 1.1
1.5 1.4
2 1.5
2.5 1.8
4 2.3
6 2.8
10 3.6
16 4.5
25 5.6
35 6.7
50 8.0
70 9.5
95 11.0
120 12.4
150 13.8
185 15.4
240 17.5
300 19.5
400 22.6
500 25.2
630 28.3
800 31.9
1000 35.7
1200 39.1
2000 50.5