Solar Panels

Solar Panels (PV Modules), the 'carbon-free' technology that converts sunlight directly into electricity, has grown dramatically in recent years. Unique among renewable energies in its interaction with the built environment, solar panels are becoming part of citizens' daily experience in developed countries as millions of solar PV modules are installed on rooftops and building facades. People living in sunshine countries will increasingly live in solar homes or receive their electricity from large solar power plants. Many governments around the world are now keen to promote renewable electricity as an essential part of the 21st century’s energy mix, and solar panels are set for an exciting future.   

Solar panels are one of the components of rooftop solar systems that generate electricity during the day. It converts sunlight into DC by absorbing the sun. If you are looking for an exact definition of a solar PV module, we have taken a simple definition from education eBooks that this device is a series or parallel arrangement of solar cells that absorbs sunlight and then generates direct current (DC) from it. In addition, it is known as a PV module, solar plate, or solar energy, it is also known as a Photovoltaic (PV) module. With the installation of solar systems, your electricity bills can be reduced or you can become more energy-independent. India ranks 4th in the renewable energy sector worldwide and has plans to use solar energy to produce electricity.

1. What is Solar Energy?
2. How is Solar Energy Produced?
3. What is Solar Panel?
4. How do solar panels work?
5. Types of Solar Panels
6. Mono PERC vs. Polycrystalline Solar Panel
7. Solar Panel Price in India 2024
8. Features of a Solar Panel
9. How to Install Solar Panels at Home?
10. Maintenance of Solar Panels
11. Top 10 Solar Panel Companies in India
12. Which solar panel is best in India, 2024?
13. Subsidy Scheme on Solar Panels
14. How to Sell Solar Panels?
15. Solar Panels - FAQs

When was Solar Panel started?

Just over 70 years ago, the idea that solar power could leap from powering satellites in space to powering the planet was the vision of only a few people brought together by the shock of the first oil embargo. Today, almost everyone sees solar panels on a daily basis. You will know the jounery from the sun’s use in the earliest times to tomorrow’s continuum of recyclable materials employed in producing energy from a manufactured good, rather than by consuming Mother Earth’s resources.

What are Solar Cells and their uses?

We are now ready to know the underlying principles and operations of the invention central to our story - the modern solar cell. To help set the scene, we shall also say a few words about solar photovoltaic (PV) modules, reserving a detailed discussion for the next section. It will be helpful to start this paragraph with a brief account of the main types of solar cells and modules in widespread use today. 

Silicon solar cells have been the workhorse of the solar industry for many years and currently account for well over 80% of world production. Solar Panels based on these cells have a long history of rugged reliability, with guarantees lasting 25 or 30 years that are exceptional among manufactured products. Although cells made from other materials are constantly being developed and some are in commercial production, it will be hard to dislodge silicon from its pedestal. There are two types of crystalline silicon solar cells in current high-volume production:

1. Monocrystalline - The most efficient type, made from a very thin slice, or wafer, of a larger single crystal obtained from pure molten silicon. The circular wafers, often 5 or 6 inches (15 cm) in diameter, have a smooth silvery appearance and are normally trimmed to a pseudo-square or hexagonal shape so that more can be fitted into a PV module. Fine contact fingers and bus bars are used to conduct the electric current away from the cells, which have highly ordered crystal structures with uniform, predictable properties. However, they require careful and expensive manufacturing processes, including “doping” with small accounts of other elements to produce the required electrical characteristics. Typical commercial solar panel efficiencies fall in the range of 16-20%. The PV module surface area required is about 5-6 sq. m/kWp. 

2. Multicrystalline, also called polycrystalline. This type of cell is also produced from pure molten silicon, but using a casting process. As the silicon cools it sets a large irregular multicrystal that is then cut into square or rectangular slices to male individual cells. Their crystal structure, being random, is less ideal than with monocrystalline material and gives slightly lower cell efficiencies, but this disadvantage is offset by lower wafer costs. Cells and modules of this type often look distinctly blue, with a scaly, shimmering appearance, as in the building facade. Multicrystalline solar panels exhibit typical efficiencies in the range of 13.5-16% and have overtaken their monocrystalline cousins in volume production over recent years. The module surface area is about 6-7 sq. m/kWp.

What is a Solar Panel?

The solar cells they contain need careful encapsulation to provide mechanical strength and weatherproofing, and the electrical connections must remain robust and corrosion-free. Most PV modules are provided with aluminium frames to give extra protection and simplify mounting on a roof or support structure. Modules without frames, known as laminates, are sometimes preferred for aesthetic reasons, for example, on the facade of a building where reflections from metal frames would be unwelcome. A group of interconnected modules working together in a solar panel installation is referred to as an array. Recently, Loom Solar, the manufacturer of these modules, announced a new product, with a three times larger area, to speed up installation. The larger the size of a module, the lower the number of electrical interconnections and the associated mounting costs. In response, PV module manufacturers have steadily increased solar panel sizes and power ratings that now range up to several hundred peak watts. However, such advances must be weighed against the difficulty of handling the larger, and therefore heavier, modules.    

Solar Panels (सोलर पैनल) are an arrangement of solar cells that are mounted in a frame and covered with glass. It is also known as Solar PV Modules, Solar Plates, or सौर ऊर्जा which convert direct sunlight into electricity. It is a clean and renewable source of energy that reduces carbon emissions, reduces electricity bills for a homeowner, and has a life expectancy of 25-30 years.

How is a PV Module made?

A typical PV module containing crystalline silicon solar cells. The brittle cells are cushioned by encapsulation between two layers of ethylene vinyl acetate (EVA) and adhesive that also holds the module parts together. On top is a cover of tempered glass that is sometimes treated with an antireflection coating (ARC) to maximize light transmission. Underneath is a sheet of Tedlar, a light synthetic polymer, acting as a barrier to moisture and chemical attack. The whole “sandwich” is located in a slot in the aluminium frame and fixed with sealant. This construction must withstand up to 25-30 years of outside exposure in a variety of climates that include desert sands, alpine snows, wind, rain, pollutants, and extremes of temperature and humidity - a highly demanding specification. When things go wrong, it is often due to ingress of moisture or corrosion of electrical contracts rather than faults in the solar cells.

How to Calculate Electrical Performance of Cells and Modules?

Individual solar cells are hardly ever used on their own. A cell is essentially a low-voltage, high-current device with a typical open-circuit voltage of around 0.5 V, far lower than the operating voltage of most electrical loads and systems. So it is normal for a PV module to contain many series-connected cells, raising the voltage to a more useful level. For example, many manufacturers offer modules with 36 crystalline silicon cells connected in series, suitable for charging 12 V batteries. These modules have an open-circuit voltage Voc of around 20 V and a voltage at the maximum power point (MPP) Vmp of about 17 V, giving a good margin for battery charging, even in weak sunlight. As PV moves increasingly toward high-power grid-connected systems, the trend is for more cells per module giving higher output voltages.  

What happens when many cells are connected in series? The answer would be very straightforward assuming that all the cells are identical and exposed to the same strength of sunlight: with n cells in series, the module voltage would be n times the cell voltage,  and the module current would be the same as the cell current. 

What are the Parameters for PV Module Testing?

Not surprisingly, most of the electrical parameters of a PV module closely reflect those of its solar cells. However, the efficiency of a module, measured in standard conditions of bright sunlight (1000W/m2 at 25 degrees C, AM1.5 spectrum), is slightly less than that of the constituent cells because the cells do not fill the module’s area and there are small power losses as sunlight passes through the top cover and encapsulant. As an example, we now consider a module containing 144 TOPCon cells with a peak power rating of 575 Wp a popular size and power rating. The following module parameters are at the low end of the range of commercial modules in the market today:

Nominal power	570-700 Wp
Open-circuit voltage	50.50 V
Short-circuit voltage	14.30 A
Voltage at maximum power	43.0 V
Current at maximum power	13.38 A
Power reduction per degree C	0.45%
Voltage reduction per degree C	0.33%
Length	2278 mm
Width	1134 mm
Weight	32.5 kg
Efficiency	22.30%

How electricity is generated from solar panels?

If you are planning to know about solar panel systems, then you should know how electricity is generated from solar panels. It is a most common question by a consumer. So let’s understand! Suppose, you have a small solar panel that generates electricity. When you put this solar panel in sunlight then it generates DC. Simply, you can run any DC appliances such as Bulbs, Lights, and Motor. It works successfully. Generally, we use clamp meters for solar panel output testing.

What is the new policy for solar rooftops in India, in 2024?

As per the current population, India has approx. 34 crore homes (total population ~ 139 crore). According to the latest information by our government, they have a plan to install solar rooftops in 1 crore homes through the subsidy scheme. They have officially announced that every solar consumer will get a Rs. 50,000 subsidy amount. It’s great news for residential consumers. But the main question is, how many homes are eligible for the subsidy scheme? According to solar professionals, 75% of homes have a 1kW sanctioned load and 25% of homes have a 3kW or above sanctioned load. That means, only 25% of homes (8.5 crore homes) are eligible for solar subsidy schemes.

How do solar panels work?

How many types of solar panels are available in India?

There are generally three types of solar panels, ‘Polycrystalline solar panels, Monocrystalline solar panels, and Bifacial solar panels’ that are available in the Indian solar market. capacity in minimum space.

The similarity between Poly, Mono, and Bifacial solar panels is to generate DC power during the daytime. All have the same working system, on the other hand, the main difference between these solar panels is the size comparison and power generation capacity in minimum space.

1. Bifacial Solar Panels: are the latest technology solar panels which generate electricity from both sides – front & back side.

2. DCR Solar Panels: The DCR solar panel is comprised of components such as solar cells, that are all made in India. On installing the solar panels, the Indian government provides a subsidy of up to 40%.  Loom Solar is an Indian-origin solar company, which introduced 520W Mono perc, 10 Bus Bar Half cut technology solar panel in India, which can generate more power from compact space. This solar panel is only installed with an on-grid solar system for which the Indian government has provided a national rooftop solar portal.

3. TOPCon Solar Panel: TOPCon (Tunnel Oxide Passivated Contact) technology is the trending solar cell technology that aims at increasing solar panel efficiency. The solar industry is witnessing rapid advancements in technology aimed towards achieving higher efficiency and better performance of solar components.

Bi-Facail vs. Mono PERC vs. Polycrystalline Solar Panel

Criteria	Bi-Facail Panels	Mono PERC Panels	Poly Crystalline panels
Efficiency	20.22%	High efficiency 19-22%	Less efficiency 14-17%
Design & Looks	Made of solar bifacial cells	Made of single silicon cells – all cells are black	Made of multiple silicon cells – looks blueish
Space	Occupies less rooftop space	Occupies less rooftop space	Takes more space
Performance	Performs max. 25%	Performs 30% better even in low light & same space	Low efficiency in cloudy weather
Price	Competitive	Expensive	Relatively low price
Degradation	Less Degrade in a Long Time	Less Degrade in a Long Time	Max. Degrade in a Long Time

How much do solar panels cost in 2024?

The cost of the solar panel depends on the capacity, the technology on which the panel is built, the variant or model of the solar PV panel, quality, manufacturer, and brand. The price of solar panels usually varies upon the parameters shared along with similar criteria for the other components that build up for the complete solar system. Depending on the requirement, you can choose to buy or install from a range of solar panel capacities like 10-watt, 20-watt, 55-watt, 75-watt, 225-watt, 450-watt solar, and 550-575-watt shark bi-facial solar panels. In certain cases, the solar panels are also referred to as solar plates.

The per watt price of single solar panel in India in 2024 ranges from Rs. 35.21 to Rs. 100 per watt - including taxes and the price of 1kW solar panel is Rs. 33,000 to Rs. 40,000 excluding taxes and transportation, so for a 1kW solar panel with the battery storage system, the max price can be around ₹ 1,00,000/- and the max price of 575W TOPCon solar panel is about half or 20,000/-. Below is the price list of technology-wise solar panel 

Cost of 12V Solar Panel in SHARK 225W: Rs. 11,225 + GST & Transportation

Cost of 24V Solar Panel in SHARK 455W: Rs. 14,500 + GST & Transportation

Cost of 24V Solar Panel in SHARK 450W Bifacial: Rs. 16,750 + GST & Transportation

Cost of 24V Solar Panel in SHARK 575W - 700W TOPCon:  Rs. 20,250 + GST & Transportation

Here are the latest solar panel prices by Indian solar panel manufacturers from 10 watts – 575 watts. Apart from panel price, you may click here to compare various models of loom solar

Last Updated on:

Solar Panel Ratings	Selling price	Price Per Watt
Loom Solar 10-watt - 12-volt solar panel	₹ 1,050	₹ 105
Loom Solar 20-watt - 12-volt solar panel	₹ 1,650	₹ 82.50
Loom Solar 55-watt Mono PERC Panel	₹ 3,050	₹ 55.46
Loom Solar 225-watt Mono PERC Panel	₹ 11,225	₹ 49.88
Loom Solar Shark 450-watt Mono PERC Panel	₹ 16,750	₹ 37.22
Loom Solar Shark 455 watt Mono PERC Panel	₹ 14,500	₹ 31.86
Shark Bi-Facial 550-watt Mono PERC Panel	₹ 17,500	₹ 31.81
Shark Bi-Facial 575 - 700 watt Mono PERC Panel	₹ 20,250	₹ 35.21

Notes/ disclaimer

• The prices mentioned above are the best price available for each product across all shops and online stores
• Price may vary from store to store and from place to place based on tax rates
• Prices shown above are with original bills and manufacturer warranty

How much does it Cost to Install Solar Panels at Home?

The cost of home solar installation starts from rs. 50,000 in which you upgrade your existing inverter battery into solar. On this small solar system installation, you can run essential household appliances such as Fans, Coolers, Lights, and Mobile Charging but when you plan to install one-kilowatt solar panels then your investment starts from rs. 60,000 to rs. 1,00,000 on which you can run entire home appliances excluding Air Conditioners and Home Water Pumps.

Generally, rooftop solar has mainly two types: Grid-connected Solar System & Off Grid Solar System. If any consumer wants to install rooftop solar through the Government Subsidy Scheme - PM Surya Ghar then will install a connected Solar System and get a 32,000 subsidy amount for a 1kW solar system. That means the cost of solar panel installation for domestic purposes is rs. 50,000 to 2,00,000 based on solar system types, and installation quality.

As we know the initial investment of a solar rooftop is high but we provide solar loan facilities for any type of solar system. The consumer needs to pay only a 20% down payment and the rest of the payment will be paid in monthly instalments.

Features of a Solar Panel

There are broadly 5 features in a solar panel that are available in the Indian Markets.

#1. Cell Technology – Mono Crystalline Solar cells are the purest raw material to make Solar PV Module, the Power generation is higher for Mono Perk Crystalline cells in sunny, cloudy, and monsoon weather.

#2. Module Size – Smaller Solar panels will occupy less space on the rooftop. Hence, a smaller size solar panel will cost more,

#3. Frame thickness – After Solar Cells, frame thickness is the second raw material that impacts on the build quality of a solar panel. A Solar panel may have a 30 mm – 45 mm frame thickness made of Aluminum structure.

#4. Connecting wires - Solar panels are connected in either Series or parallel connection to make an array,  An Array is a form in which multiple solar panels are connected, Hence, the solar must come with at least a 1-meter wire and with IP 68 Junction box that makes it water and dustproof.

#5. Unbreakable Glass- A solar pane will have solar cells, an aluminium frame, and transparent glass, The foldable solar panel will have foldable glass that has fewer chances to break.

Are bifacial solar panels worth it?

Bifacial solar panels are the latest technology solar panels that generate electricity from both sides of the panel – front & back side. The solar cell construction of this solar panel is different from polycrystalline and monocrystalline solar panels. They offer many advantages over traditional solar panels. These can be framed or frameless solar panels.

How to Install Solar Panels at Home?

Solar panels should be installed by professional installers. Any mistake in installing solar panels will lead to lesser efficiency and loss in power generation. 

The standard solar panel installation cost is between ₹10 to ₹15 per watt depending upon location, the distance between the panel and inverter, and whether the installation is off in the on-grid solar system or off-grid solar system. We have installed solar panels in over 50,000 homes across India. Here is the list of solar panel installation stories with unique applications.

How to connect a 24v solar panel to a 12v battery?

The selection of solar panels is based on voltage range, which is available in 10W, 20W, 40W, 50W, 75W, 125W, and 200W with 12V solar panels, which are used to charge a single battery of 12V. But for double inverter battery (24V inverter battery), a 24V solar panel will be used. Loom Solar provides 24V Shark 445 Mono Perc, Shark 550W, Mono Per, Bifacial, Shark 550 W Solar Panel, and 520W DCR Solar Panels.

A solar panel is used for battery charging and saving electricity bills for homes and offices. A battery is a collection of cells that stores power. All lead acid batteries come in 12V and are rechargeable batteries. Now, the basic concept of battery and solar panels is 12V battery should be charged by a 24V solar panel. But there is some confusion – if we need to connect the solar panel and battery directly, then the battery will get damaged after full charge. Here, we can use a charge controller or inverter. 

How many solar panels are needed to run a house?

People prefer to install a solar system for its low maintenance and low electricity bill. Many standalone houses are now going solar as monthly electricity bills are high. For a 3-4 bhk house running a refrigerator, washing machine, 3-4 light/ bulbs, fans, iron, etc. 4 Shark solar panels (22% efficiency level) will be enough. A 2.5 kVA solar system (one inverter and two batteries) is generally enough for such houses.

Maintenance of Solar Panels

Solar panels are low-maintenance products, however, it is important to clean solar panels regularly to clear off the dust particles that accumulate on them. A Cleaner solar panel might generate up to 25% more power. The cost of maintaining solar panels is near zero (0) or a few hundred rupees a year.  Most solar panels have silicon cells laminated and framed on them which ensures long life and less maintenance. Cleaning and washing solar panels are a must for longevity and retaining efficiency.

• Keep Solar panels out of the shade
• The best way to clean the solar panel is by using soft cloths, shampoo, or detergent
• Clean in a way that it may not scratch the glass

What are the applications of solar panels in India?

The applications of solar panels are primarily used for three major purposes: to reduce electricity bills, to generate electricity, and as an investment opportunity. For Tier 1 and Tier 2 cities of India, solar panels are being installed on rooftops to reduce electricity bills by up to 80%. Whereas in Tier 3 cities, solar panels are being installed to generate electricity to get power supply 24*7 and anywhere. At Loom Solar, we have installed solar panels at over 50,000 homes and businesses across India, including rural and remote areas. Given below are some major applications of solar panels:

1. Home	Runs Fans, Lights, Cooler, TV, Mobile & Laptop Charging, Refrigerator, Water Pump and Air Conditioner
2. Shop	Runs Printer, Computer, Lamination Machine, Fans, & Lights
3. Educational Institutions	Runs Fans, Lights, Water Cooling Machine, Computer, Laptops, CCTV Camera, & Internet
4. Medical Clinics	Dental Chairs, Air Compressors, Heaters, Lights, Air Conditioners, Fans, Aquariums, Home Water Pump, TV and more.
5. Farming	Hydroponic Farming (Soil-less farming), and Insects Agriculture Pest Killer
6. Meal	Atta Chakki Meal, and Rice Meal
7. Science Projects	Electric Cars, Electric Cycles, and E-Rickshaw
8. Outdoor Camping	Shimla, Manali, Goa, Jammu & Kashmir, Delhi, Kasol, Kanyakumari, Darjeeling, Jaipur, and more.
9. Water Level Checking	Installed on Yamuna, Bagmati, Gangas, Godavari, Brahmaputra River and more.
10. Street Light	Installed on the Road Side, Villages, College Campus, Factory Garden, etc.
11. Solar Fencing	To protect crops from animals
12. Music System	SoundBox System in Temples
13. Home Garden Lights	Home Garden Lights in Kerala locations
14. Water Pump	Agriculture Water Pumps
15. Moving Travellers	Moving Van for Shops (चलता-फिरता दुकान)

Solar Loan / EMI Options

To facilitate the homeowners looking to avail of loan or EMI solutions for Solar power solutions, Loom Solar has set up a dedicated team to help streamline the entire process this summer season.

According to a statement issued here, as the festive season is all set to knock, customers also are gearing up to make their sort after purchase of various household items, utility appliances, and gifts for friends and family also things that become more pronounced are home loans, car loans, EMIs on various products etc. It’s time to celebrate and make the long-awaited purchase. The Avg. interest rate of solar loans is 8.50% to 15% for home and business rooftop solar panel installation.

Top 10 Solar Panel Manufacturers (Companies) in India

India is the world’s 3rd biggest market of solar modules with 150 solar panel manufacturers in the country with 10 GW Manufacturing capacity and a Home of 35 GW Installation of solar panels. Here is the list of the Top 10 solar companies selected based on Manufacturing Capacity, Bankability, Sales Revenue, Brand Value, and Year of Service in the industry. 

Which solar panel is best in India, in 2024?

In a Solar system, a Solar panel is the main component, the best solar panel is based upon the performance of a solar system, build Quality, serviceability, Power Generation Output, and per watt price, here is the list of Best Solar Panels with reviews.

New Subsidy Scheme on Solar Panels

According to the latest government notification, the solar subsidy to be given by the government is 40% for rooftops of up to 3 KW capacity and 20% beyond that up to 10 KW will be credited to the account of the householder by the Discom within 30 days of the installation.

How to Sell Solar Panels?

In this post, we are going to talk about how one can have a successful solar business. This is specifically for our dealers and partners and others who want to make the most of the growth rate in the solar industry. 

Solar Companies near me

To install solar panels, the policy and procedure is different in every state in India for all types of solar systems be it On Grid, Off Grid, or Hybrid solar systems. The subsidies provided by the governments are different, for some states, the subsidy is provided by the state + central government, for some states, it is provided by just the state government and in some states it is provided by the central government. This is the main problem for the consumer when installing solar panels. Indian-origin company Loom Solar, a company that has been working on rooftop solar since 2018 has options for the consumer which help the consumer to select the best solar system for their homes.

Solar Panels - Question & Answers

#1. How many KW Solar Panels do I need for my home?

The selection of solar panels depends on two factors:

a) In Case of Power Failures - The solar panels require 3 times of battery Capacity, so for example, if you have 2 batteries of 150 Ah in your home, you should install 3* 150 Ah = 450 watts of solar panels.

b) In the case of Saving Electricity Bill: Look at your power bills and check how many units you consumed during a month, let's assume, 300 units (kWH) in a month, so solar panels requirement will be Solar Panel Requirement = Total power consumption in a month (kWH) / 30 days *4 units power generation per kW. So, in this case, it should be 300/30 *4 = 2.5 kW, i.e. 2500 watts.

#2. Does Solar Panel Work During the Night or Monsoon?

Solar panels will produce comparatively less energy during monsoon. More sunlight better your solar panel works. Shades, clouds, and monsoons do affect the performance of solar panels. The amount of electricity is directly related to the amount of sunlight that falls on solar panels.

Solar panels will produce comparatively less energy during monsoon. More sunlight can better your solar panel working. Shades, clouds, and monsoons do affect the performance of solar panels. The amount of electricity is directly related to the amount of sunlight that falls on solar panels.

#3. What is the Average Lifespan of a Solar Panel?

Most solar panels come with 25 25-year warranty in India. However, the lifespan of a solar panel can go up to 30 years depending upon brand and quality.

#4. How much 1 kW solar panel power generates and how much space it takes in the installation?

1 kW = 1000 watts, 1 kW solar panel generates on an average 4 kWh in a day depending upon weather conditions, in a sunny day it might generate up to 5 Units, while in winter or cloudy weather, the power generation could be lower up to 3 units a day.

1 kWH = 1 unit = 1000 watt

A solar panel has a standard length of 2 meters and a width of 1 meter. Installation of 1 kW solar panel requires 2 solar modules, the space taken by 1 kW solar panels shall be

Solar panel size * No. of panels

= (2 meter * 1 meters) * 2 panels = 4 square meters.

#5. How Much Money Will I Save with Solar Panels?

1000 watts panel will save around ₹1000 per month on average. More the number of panels more electricity you can produce which will result in more savings. A 1kVa on-grid system can save around ₹1500 per month.

#6. Can the solar panel be installed without an Inverter and battery for day use?

Solar panel is a source of DC electricity, and the appliances such as Fan, Televisions, and lights that we use in our home is AC, 230 volts (alternating current) electricity, DC power can be used directly with solar panels while using AC electricity, It is must use Inverters.

#7. Can I run a ceiling fan directly from solar panels during the daytime?

Solar generates a direct form of electricity, to use a fan on solar, an inverter is a must, a Fan cannot be used directly from solar panels.

#8. How the efficiency of the solar panel is calculated? 

The efficiency of the solar panel is the way to calculate the density of the solar module. For example, you have a solar panel that is 1 meter long and 1 meter wide and produces 1000 watts, this would be called 100% efficiency of solar panels.

The Formula for calculating solar panel efficiency is

Efficiency % = (Power)/ (Length) * (Width) * (1000 watt / sq. meter)

Power – the power rating of solar panels in watts.

Length and width- the size of solar panels

1000 watt / sq. meter is sunlight available at your home

Here is the example to calculate Loom Solar 400-watt solar panel efficiency (400 watts) / (2-meter length) * (1-meter width) * (1000 watt / sq. meter) = 20% i.e. the efficiency of a 400-watt solar panel is 20%.

#9. Where can I buy Solar Panels in India?

There are multiple ways to buy solar panels in India, such as inverters and solar shops near you and online stores such as Loom Solar, Amazon, Flipkart, etc.

#10. How to make a solar panel?

We all know by now, that a solar panel is a device that absorbs sunlight and converts this energy into usable electricity. As the price of a solar panel goes down and efficiencies improve, it is attracting masses all over the world to go off the grid. Once you incur the cost of a solar system and its installation, you can practically generate free electricity over the next 25-30 years. But how is this solar panel made, what materials are involved, and how different parts are put together to result in a device that is capable of providing you with free electricity?

#11. Which are the best solar panel brands available in India?

Loom Solar, Vikram Solar, Waaree, Adani, and Renesys are some of the best solar panel brands available in the Indian market.

#12. What are some important features to consider when buying a solar panel?

Before purchasing a solar panel, you must ensure that you consider features and specifications such as solar panel technology, PV module size, glass & frame durability, mounting holes, connecting wires, and junction box to ensure you purchase a variant that meets all your requirements.

#13. How much is the price range of solar panels?

The solar panel price ranges from ₹ 1,000 to ₹ 25,000.

#14. Can I purchase a solar panel on EMI?

Yes, a majority of solar panel brands offer financing options like EMI & Loan.

#15. Which Solar Panel Is Best for Home?

- Shark Bifacial Solar Panel by Loom Solar

#16. Which Solar Panel Is Best For Business?

Shark 550W Is Best for Businesses, Such as Schools, Factory, Petrol Pump, Warehouse, Rice Meal, Atta Chakki, and More.  

#17. What are the disadvantages of having solar panels?

There are some limitations of solar panels such as -

1. A solar panel works only during the daytime, but most residential consumers are living in the morning & night time. 
2. A solar panel occupies 60 to 100 sq. gaj rooftop space, they have limited rooftop space where sufficient sunlight comes every day.
3. A solar panel system is not a compulsory product for every homeowner like an inverter battery.

#18. What is the cost of 1 solar panel?

The cost of a single solar panel starts from Rs. 1,050 to Rs. 20,250 (price may vary depending on some factors like brand, quality, type, watt, etc.)

#19. How many solar panels do I need to power my house?

On a general basis, a small house can be fully powered up by using 6 to 10 solar panels.

#20. What are the 3 types of solar panels?

There 3 types of solar panels that are being used in solar systems, they are Polycrystalline solar panels, Mono Crystalline, and Bifacial solar panels.

#21. What are the 2 problems with solar panels?

The only 2 problems that appear in solar panels on a minute scale is the weather. As the power generation capacity can be affected by bad weather. The other problem is the installation space. Generally, solar panels require a lot of space for installation. The new solar panels are compact and can be installed in a small space.

#22. What is the lifespan of a solar panel?

The average lifespan of a solar panel ranges from 25 years to 30 years.

#23. Which is the best solar panel company?

There are many brands that provide the best quality of solar panels. Some brands are Loom Solar, Tata Power, Waaree Energy, Adani, and Vikram Solar.

Solar Panel Price in Top Cities of India

Solar Panel Prices in India are updated by the Loom Solar team regularly. Solar Panel costs are revised after charging the price of any solar panels. Here, we have taken the price of a super high-efficiency PV module - Shark 550W Mono PERC, Half Cut Technology PV Module. Solar Panel Price Updated on: