The Differences Between On-Grid and Off-Grid Solar System

What Is An On-Grid Solar System?

The on-grid solar system, often referred to as a grid-tied system, has the capability to generate surplus electricity, catering not only to residential needs but also extending its utility to the commercial and industrial sectors.

A fundamental prerequisite for the installation of this system is the existence of a functional electrical grid. During daylight hours, any excess electricity generated by the solar panels that surpasses immediate consumption is seamlessly fed back into the grid.

Conversely, during night hours or periods of insufficient solar generation, electricity is drawn from the grid to meet the demand. An advantageous feature of this setup is its adaptability; it ensures uninterrupted power supply for the property, regardless of solar energy production fluctuations.

One key distinction of this system is that it does not necessitate the inclusion of an energy storage battery, as the grid itself effectively serves as the energy reservoir, enhancing its cost-effectiveness and ease of maintenance with the help of energy storage solutions.

What Is An Off Grid Solar System?

The off-grid solar system operates autonomously, obviating the need for any grid connection. Nonetheless, the effective functioning of this system mandates the inclusion of a battery backup to accumulate the solar energy generated during daylight hours.

The key components of the off-grid solar system encompass solar panel manufacturing, a charge controller, a storage battery, mounting structures, and an inverter.

The solar panels diligently harvest solar energy during daylight, while the storage battery assumes the responsibility of accumulating surplus energy to facilitate the operation of electrical appliances during nighttime hours.

When deciding which type of solar system is right for you, you must carefully consider your specific needs and circumstances. For example, if you live in an area with frequent power outages, an off-grid or hybrid solar system is an excellent choice to ensure a reliable source of electricity. On the other hand, if you want to partially reduce your carbon footprint and save some money on your electricity, an on-grid solar power system could be a solid choice. It may allow you to participate in net metering and can also be more secure in a location that has a reliable electricity infrastructure and doesn’t get much peak sunlight.

What Are the Differences Between On-Grid and Off-Grid Solar System.

When deciding which type of solar system is right for you, you must carefully consider your specific needs and circumstances. For example, if you live in an area with frequent power outages, an off-grid or hybrid solar system is an excellent choice to ensure a reliable source of electricity. On the other hand, if you want to partially reduce your carbon footprint and save some money on your electricity, an on-grid solar power system could be a solid choice. It may allow you to participate in net metering and can also be more secure in a location that has a reliable electricity infrastructure and doesn’t get much peak sunlight.

Ability to Access Grid Power

Grid-tied homes don’t need to rely exclusively on solar energy. During extended periods of cloudy weather, off-grid systems have the potential to run out of power. On-grid homes can always draw electricity from the utility company as needed.

Excess Production

On-grid systems can pay dividends when the system produces power in excess of your needs. If your utility company supports net metering, sending excess energy back to the grid can make you money. You will typically receive credits on your electric bill for the energy you contribute back to the grid.

Power Outages

Off-grid solar systems provide peace of mind to homeowners who live in areas with a history of power outages or extreme weather. They can continue to have access to electricity even when the grid goes down.

Electric Bills

Another advantage of off-grid solar systems is that you do not have to pay electric bills as long as you produce your own power. Eliminating electric bills can be a significant cost saving for homeowners, especially in areas with high electricity rates. You can save hundreds or even thousands of dollars annually by producing your own electricity.

Overall Cost

While you will not have to pay electric bills with an off-grid system, they require a significant upfront investment. Luckily, there are many government programs and tax incentives to help defray the initial costs.

Off-grid systems with LFP batteries require little to no maintenance, and solar panels routinely last over 25 years without needing to be replaced. If you’re in it for the long haul, off-grid solar can be an excellent investment—especially as the price of traditional electricity sources like fossil fuels continues to rise.


On-grid and off-grid solar systems are viable options for homeowners looking to incorporate solar into their energy mix.

On-grid solar systems may allow you to participate in net metering and save some money on your electric bills.

Off-grid solar systems offer complete energy independence from aging infrastructure and protection against power outages.

Solarurjaa has a variety of solar products to fit anyone’s needs.

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Read More-How To Heat a Greenhouse With Solar Panels?


Solar panels from Solarurjaa Solar are durable enough to withstand hurricane-force winds, large hail and heavy rain.

Solar panel manufacturers make their systems as tough as possible because they’re constantly exposed to the elements. Solar panels are durable enough to withstand a hurricane, among other rough conditions.

The good news is that you generally don’t have to worry about hurricane winds, rain or hail ruining or damaging your solar panels because they’re built to be resilient. But you’ll need to take some precautions before any tropical storms hit.

How Durable Are Solar Panels?

Solar panels might seem fragile because some are made of glass, but high-quality, thick tempered glass is actually quite strong.

However, solar panels made of monocrystalline silicon are much more common and more durable overall. Monocrystalline silicon is made by melting pure silicon and forming it into bars, then cutting it into wafers. The purer the silicon is, the more efficient your solar panels are.

Manufacturers also rigorously test their products and pursue third-party verification to ensure their solar panels can withstand a hurricane and its worst conditions, including high-force winds, large hail and heavy rain.

Effects of Hurricane Weather on Solar Panels

Effects of Rain on Solar Panels

Rain has no real negative effect on solar panel systems. Solar panels and their connectors are durable and waterproof. You won’t have to worry about them falling apart when the rain starts pouring down.

In fact, the residual rain droplets on your panels can have a positive effect on energy generation. Water is reflective, so those droplets attract light and boost energy generation when the sun reemerges after a rainstorm.

Rain is also helpful in washing away dirt and debris from solar panels. This keeps them clean for absorbing ample sunlight.

Effects of Wind on Solar Panels

Most solar panels can handle wind speeds of up to 2,400 pascals, which equals 140 miles per hour (mph). The best manufacturers engineer solar panel systems with local wind patterns in mind.

The average sustained wind speed for Category 3 hurricanes is between 111 and 129 mph. Nevertheless, your solar panel system should have no trouble combating these strong winds and can withstand a hurricane.

Effects of Hail on Solar Panels

Contrary to what most people might think, solar panels are resistant to some of the hardest, biggest hailstones. The National Renewable Energy Laboratory studied 50,000 solar panel installations between 2009 and 2013 and found that only .1% of all systems reported module damage or underperformance each year.

Do Solar Panels and Batteries Work During Hurricanes?

Solar panels can still generate energy despite the intense rain and clouds that hurricanes bring. Your home solar installation can absorb sunlight and produce electricity as long as sunlight hits them directly or indirectly.

However, hurricanes often damage grid lines, which results in power outages. Certain states (such as Florida) require solar panel owners to connect to the grid. If an outage occurs, all solar systems must halt power generation for the safety of electricians working to restore the grid.

How to Prepare Your Solar Panels for a Hurricane

You’ll probably hear from your local weather station if a hurricane is on the way.

It’s unnecessary to (and doesn’t make sense to) remove solar panels from the ground, a wall or your roof, especially because they help protect your roof from potential storm damage.

Make sure to document the condition of your solar panel system before a hurricane strikes in case you have any damage. Solar panels are just as much of a financial investment as other assets. Having proof will help your case when seeking insurance coverage.

Having both hard and digital photocopies is wise if you need to give your provider documents. Most solar warranty plans cover your system’s equipment, labor and repair or maintenance due to damage, loss or theft over a 25-year period.

How to Inspect Your Solar Panels After a Hurricane

You should always inspect your solar panel system for damage once a hurricane has passed. However, roof solar panels aren’t as easy to assess as wall or ground-mounted solar panels. Make sure to contact a solar panel service and maintenance department for a solar repair request.

Photograph any damage, whether you’re doing the inspection yourself or asking a solar specialist to help you. Make sure to avoid any exposed or displaced wires. The system could be energized with current and potentially harm you.

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How To Heat a Greenhouse With Solar Panels

If you have or want to build a greenhouse and are considering heating it to grow food all year round, solar panels, also called photovoltaics or PVs, are the way to go. Solar energy is perfect for greenhouses since you’ll already have your greenhouse in an area with optimum sunlight. 

Solar energy is clean and green, so you can enjoy a wide variety of fresh fruits and vegetables even in winter without having to have them trucked in from tropical climates at significant environmental cost.

Let’s take a look at how to heat a greenhouse with photovoltaics.

How Do Solar Panels Work for a Greenhouse?

On or Off-Grid?

First, you must decide if your greenhouse is on the grid (connected to a utility company’s electricity) or off-grid. If your system is off-grid, it means you’ll need a solar generator system complete with battery storage so that you can store the excess energy your photovoltaics produce during the day when the sun is shining.

Then, it can be used at night or during bad weather when your panels are not generating enough power on their own. Staying on-grid means you don’t need to spend the extra money on batteries; you can just buy the photovoltaics.

The drawback of a grid-tied system without battery backup is that you’ll be at the whims of the grid if the power goes out, which could cost you dearly in the winter. No matter your choice, your energy will still be mostly or completely powered by the sun, helping combat climate change while also saving money on your electricity bill.

How Many Solar Panels Do I Need for a Greenhouse?

How many photovoltaics you need depends entirely on your energy usage. You can calculate your energy usage by adding up the watts from each piece of equipment you’ll be using. If you already have a heater, check the wattage.

If you haven’t yet set up your system, how much heating you need will depend on the square footage of your greenhouse and how well it holds heat. A small greenhouse may only need a single 400W solar panel to heat it, while larger greenhouses will need several.

Also, remember to include things like lighting and pumps for your automatic irrigation systems. The watts needed for these will need to be added to your total to determine how many panels you need.

The number of panels you need will also depend on the rated power of your photovoltaics, their efficiency rating, your exposure, trees that may shade them, and other local environmental factors like the number of peak sun hours.

How to Heat a Greenhouse With Solar Panels

1. Plan Panel Placement and System Components

To choose the best photovoltaic system for your greenhouse, consider what you need and where your components will be installed.

For instance, how much space do you have on your greenhouse roof, and will that roof support the weight? You also need to consider where the sun shines since you want to put your PVs facing the sun to get the most out of them.

For those living in very hot climates, ensure you have a gap beneath your panels to allow for airflow to help dissipate the temperature; you may even want to face them east or west instead of south since very high temperatures will reduce your efficiency and overall lifespan of your panels.

2. Gather the Required Tools and Components

Order your photovoltaics, battery storage if you’re going off-grid, and any additional tools you’ll need, including wires, screwdrivers, and mounting system components, which will vary with the type of set-up you use.

3. Install and Connect the Panels

Install your brackets or mounting system first, then attach your panels. Next, you need to connect all of your panels together in series.

4. Install the Solar Battery and Inverter

Use a solar battery like that in Solar Generators. They’ll already have a built-in inverter that converts the DC electricity produced by your solar panels and stores it in your battery into the AC electricity that appliances like heaters use. All you need to do is connect your panels to your battery system.

5. Install and Connect Your Heater And Other Devices

Depending on your system, you can plug your heater into your solar battery or into the greenhouse’s electrical system. You can even tie it all into a thermostat for easy automatic temperature control. Also, don’t forget to connect any lights, pumps, or other components to your system.

Benefits of Using Solar Panels to Heat a Greenhouse

Grow Warm Season Food in Cold Climates 

Using solar panels to heat your greenhouse, you can grow more warm-season crops like tomatoes and peppers in cold climates without contributing to climate change.

Save Money on Electricity

Even though installing photovoltaics requires an upfront investment, once installed and you reach the solar payback period, your energy is completely free when you achieve a return on your investment.

Energy Independence – No More Irrigation Power Outages

When you build your system with a battery, you’ll never have to worry about power outages again. This could be critical if the grid goes down in winter and your plants freeze without power. The same problem could happen in summer if you depend on air conditioners to keep the temperature tolerable for your plants.

Easy Installation and Low Maintenance

Photovoltaics are relatively easy to install, and the best part is that once they’re installed, they require virtually no maintenance. Depending on your climate and other local conditions, you may need to rinse the panels off once or twice a year to remove dust and debris.

Quiet Operation

The days of noisy, smelly fossil-fuel generators are a thing of the past. When you use solar generators instead, you can enjoy super-quiet operation. The loudest thing will be your heater, which will be inside your greenhouse, so there’s no need to worry about noise anymore.

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Top 5 Benefits Of Solar Power For Businesses In India

With the growing demand for energy and the increasing cost of non-renewable sources of energy, businesses in India are looking for ways to reduce their energy bills and become more energy-efficient. One of the most viable options for businesses is solar energy power. In this blog, we will discuss the benefits of solar power for businesses.

1. Lower energy costs:

One of the most significant benefits of solar power for businesses in India is its potential to lower energy costs. India has a growing demand for energy, and the cost of non-renewable sources of energy is increasing. By investing in solar energy, businesses can generate their electricity, which can significantly reduce their energy bills. Solar power is a one-time investment that offers long-term returns by reducing energy costs.

2. Reduced dependence on non-renewable sources of energy:

India has a limited reserve of non-renewable sources of energy, and the country is heavily dependent on imports to meet its energy needs. Solar power can reduce India’s dependence on non-renewable sources of energy, which can help reduce the country’s energy import bill. By generating their electricity, businesses can contribute to the country’s energy independence and reduce their carbon footprint.

3. Improved energy security:

Investing in solar power can also help businesses improve their energy security. Solar power is a reliable source of energy that can provide electricity even during power outages. In India, power outages are common, especially in rural areas. By investing in solar power, businesses can ensure an uninterrupted power supply, which can help them operate smoothly and efficiently.


4. Reduces the operating costs of your organization

Solar power is a good investment for your business, as it reduces operating costs by saving you money on energy expenses. If you are looking to reduce electricity costs and make efficient use of resources, then solar power could be the answer.

A large percentage of your monthly expenses goes towards paying for electricity bills, so if you can lower those costs by installing solar panels at your workplace or home office then this will go towards reducing other expenses like staff wages or rent payments as well as insurance premiums (if applicable).

5. Government incentives/tax benefits:

The Indian government has been promoting solar power through various policies and incentives. The government offers tax benefits for commercial and industrial solar power systems. Additionally, businesses can claim accelerated depreciation on solar power systems, which can significantly reduce their tax liability. The government also offers net metering policies, which allow businesses to sell excess electricity generated from their solar power systems back to the grid.

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Solar Rooftop Subsidy Scheme – A 360° View

Pradhan Mantri Suryoday Yojana was announced by PM Modi to extend solar energy access to households nationwide. On February 13th, Prime Minister Narendra Modi announced the renaming of the government’s updated rooftop solar scheme to ‘PM Surya Ghar: Muft Bijli Yojana‘.

Aimed at providing up to 300 units of free electricity every month to 1 crore households, this initiative with an investment of over ₹75,000 crores, aims to promote the widespread adoption of solar power. Through subsidies provided for eligible solar projects, more individuals will have the opportunity to install solar rooftop systems on their own homes, subsequently decreasing their electricity expenses.

Solar Rooftop Subsidy Benefits to Homeowners

A solar subsidy is a financial incentive the government provides to individuals or organisations to encourage the adoption of solar energy by making it more affordable and accessible to a wider range of people, businesses, and communities. By offsetting some of the initial investment required for installing solar panels, subsidies help more people to switch from traditional coal-based to renewable energy.

Central Financial Assistance (CFA) Under PM Surya Ghar Muft Bijli Yojna

Under the ‘PM Surya Ghar: Muft Bijli Yojana’, the government is offering substantial subsidies to incentivize the adoption of solar energy. For systems up to 2 kW, a generous subsidy of Rs. 30,000 per kilowatt (kW) is provided, while additional capacity up to 3 kW is eligible for a subsidy of Rs. 18,000 per kW.

Even for larger systems exceeding 3 kW, the total subsidy is capped at a considerable Rs. 78,000. These increased subsidy rates make it more accessible for homeowners to invest in renewable energy solutions, paving the way for a cleaner and more sustainable future.

The following table illustrates the subsidy amounts for various KW solar installations:

Average Monthly Electricity Consumption (units) Suitable Rooftop Solar Plant Capacity  Subsidy Support 
0-150 1 – 2 kW Rs 30,000 to Rs 60,000/
150-300 2 – 3 kW Rs 60,000 to Rs 78,000/
>300 Above 3 kW Rs 78,000/-

Where To Apply for Solar Rooftop Subsidy?

Anyone living in any part of India can use the National Portal ) to apply for a Rooftop Solar System installation under PM Surya Ghar Muft Bijli Yojna and receive financial support directly in their bank account. The portal also gives information about subsidy programs, rewards, and other advantages available under this scheme. This makes it more convenient for households to apply for and get the subsidy they are eligible for.

Eligibility Criteria For Availing Solar Subsidy 

To qualify for participation in the PM – Surya Ghar: Muft Bijli Yojana in 2024, individuals must satisfy the following conditions:

  • Hold permanent citizenship of India.
  • Attain the age of 18 or above.
  • Own a residential property.
  • A valid electricity connection is mandatory for the household.
  • Householders must possess the required documentation.
  • Aadhaar linked to bank accounts is highly mandatory.
  • The household must not have previously received any other subsidies for solar panels.

Documents Required to Apply For Solar Subsidy On National Portal

The essential documentation needed for eligible residents of the country to complete the online registration for the Solar Rooftop Scheme includes:

  • Aadhar card
  • Proof of address
  • Identification card
  • Household ration card (if applicable)
  • Income certificate
  • Bank passbook
  • Mobile number
  • Passport-sized photograph
  • Utility bill for energy consumption

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Factors Influencing Home Solar Panel System Installation Costs:

  1. Solar Panel Efficiency and Type: The efficiency of solar panels directly influences the overall cost. High-efficiency panels are more expensive but can generate more electricity in a limited space. Monocrystalline panels, with their higher efficiency, tend to be costlier than polycrystalline or thin-film options.
  2. System Capacity: The size of the solar power system needed is determined by the energy consumption of the household. Larger systems with higher capacities will naturally come with a higher upfront cost. Conducting a detailed energy audit can help pinpoint the optimal system size for a specific home.
  3. Inverter Type: The choice of inverters contributes to the overall cost. While string inverters are more cost-effective, microinverters offer advantages in terms of performance, especially in scenarios where shading is a concern.
  4. Mounting Structures and Installation Complexity: The type of mounting structure and the complexity of installation are significant cost drivers. Ground-mounted systems, which require additional materials and labor, tend to be more expensive than Solar rooftop installations. Likewise, installations on complex roof designs may incur higher costs.
  5. Quality of Components: The quality of solar panels, inverters, batteries, and other system components affects both performance and longevity. Investing in high-quality equipment may increase the initial cost but can result in better efficiency and durability over the system’s lifespan.
  6. Government Subsidies and Incentives: In India, various government schemes at both the state and central levels offer subsidies and incentives to promote solar adoption. These can substantially reduce the overall cost of installation, making solar power more accessible to a broader demographic.
  7. Installation Charges: The installation charges cover labor, equipment, and associated costs. Opting for a reputable and experienced installer ensures a smooth installation process, minimizing the risk of issues that could lead to additional expenses.

Cost Breakdown:

As of 2024, the average cost of installing a home solar panel system in India can vary widely, ranging from INR 1.5 lakh to INR 5 lakh or more. Let’s break down these costs to understand the distribution of expenses.

  1. Solar Panels:
    • Solar Panel cost is a significant portion of the overall expenditure. High-efficiency monocrystalline panels can cost more per watt compared to polycrystalline or thin-film options.
    • On average, the cost of 1 kw solar panels can range from INR 37,500 to INR 42,000, depending on the wattage and type.
  2. Inverters:
    • Inverters contribute to the cost, with micro inverters being more expensive than string inverters.
    • The cost of inverters can range from INR 20,000 to INR 80,000 or more, depending on the type and capacity.
  3. Mounting Structures:
    • Ground-mounted systems are generally more expensive than rooftop installations.
    • The cost of mounting structures can range from INR 10,000 to INR 50,000, depending on the complexity and type.
  4. Batteries (Optional):
    • Batteries, if opted for, add an extra layer of cost to the installation.
    • The cost of batteries can vary widely, ranging from INR 20,000 to INR 1 lakh or more, depending on capacity and brand.
  5. Quality of Components:
    • Investing in high-quality components may increase the upfront cost but can result in better performance and longevity.
    • The cost difference for high-quality components can vary, with a potential increase of 10% to 30% compared to standard components.
  6. Government Subsidies and Incentives:
    • Government subsidies and incentives can significantly offset the installation cost, like solar rooftop subsidy scheme by govt. of India.
    • Subsidies can cover 20% to 70% of the total cost, depending on the region and the specific scheme.
  7. Installation Charges:
    • Installation charges cover labor, equipment, and miscellaneous expenses.
    • On average, installation charges can range from INR 20,000 to INR 1 lakh, depending on the complexity of the installation.


Solar Energy System

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How To Choose The Right Solar Panels For Home & Business

Choosing the right solar panels for your home or business is a significant investment that can lead to substantial savings on energy bills and a positive environmental impact. In this guide, we will help you navigate through the options and considerations to ensure you make the best decision for your specific needs.

Understanding Solar Panel Types

  1. Monocrystalline Solar Panels
    • Efficiency: High efficiency, with an efficiency rate typically between 15-20%.
    • Lifespan: Long lifespan of 25 years or more.
    • Cost: Generally more expensive due to higher efficiency and longevity.
  2. Polycrystalline Solar Panels
    • Efficiency: Slightly lower efficiency compared to monocrystalline, usually between 13-16%.
    • Lifespan: Similar lifespan of around 25 years.
    • Cost: More affordable, making them a popular choice for budget-conscious consumers.
  3. Thin-Film Solar Panels
    • Efficiency: Lower efficiency, typically between 10-12%.
    • Lifespan: Shorter lifespan, around 10-20 years.
    • Cost: Generally the least expensive, suitable for large installations where space is not an issue.

Factors to Consider

1. Energy Needs

Assess your energy consumption to determine the size and capacity of the solar panel system you need. Check past electricity bills to estimate your average energy usage.

2. Roof Space and Orientation

Evaluate the available roof space and its orientation. South-facing roofs receive the most sunlight, making them ideal for solar panels. Ensure there are no obstructions like trees or buildings that could cast shadows on the panels.

3. Budget

Set a budget that covers not only the cost of the panels but also installation, maintenance, and any necessary permits. Remember that while initial costs can be high, the long-term savings on energy bills and potential tax incentives can offset these expenses.

4. Quality and Warranty

Choose panels from reputable manufacturers that offer solid warranties. A good warranty period is typically 25 years for performance and 10-12 years for workmanship.

5. Installer Experience

Select an experienced and certified installer. Proper installation is crucial for the efficiency and longevity of your solar panel system.

Benefits of Solar Panels

  1. Cost Savings: Significant reduction in electricity bills over time.
  2. Environmental Impact: Reduced carbon footprint and reliance on fossil fuels.
  3. Energy Independence: Greater control over energy sources and protection against rising energy costs.
  4. Property Value: Increase in property value due to the addition of a solar energy system.


Choosing the right solar panels involves careful consideration of your energy needs, roof characteristics, budget, and the quality of the products and services. By understanding these factors and evaluating your options, you can make an informed decision that maximizes the benefits of your investment in solar energy.

For more information and expert advice on selecting and installing solar panels, visit SolarUrjaa.

READ MOREDifferent Types Of Solar Panels

Different types of solar panels serve different needs and purposes.

Distinguishing between different types of solar panels often means differentiating between single-junctions and multi-junctions solar panels—or first, second, or third generations. Single-junction and multi-junctions differ in the number of layers on the solar panel that will observe the sunlight, whereas the classification by generation focuses on the materials and efficiency of the different types of solar panels.

1st Generation Solar Panels

These are the traditional types of solar panels made of monocrystalline silicon or polysilicon and are most commonly used in conventional surroundings.

Monocrystalline Solar Panels (Mono-SI)

Monocrystalline Solar Panels (Mono-SI)

This type of solar panels (made of monocrystalline silicon) is the purest one. You can easily recognise them from the uniform dark look and the rounded edges. The silicon’s high purity makes it one of the most efficient solar panels, with the newest ones reaching above 20%.

Monocrystalline panels have a high power output, occupy less space, and last the longest. Of course, that also means they are the most expensive of the bunch.

Polycrystalline Solar Panels (Poly-SI)

Polycrystalline Solar Panels (p-SI)

You can quickly distinguish these panels because this type of solar panels has squares, its angles are not cut, and it has a blue, speckled look. They are made by melting raw silicon, which is a faster and cheaper process than that used for monocrystalline panels.

 However, the differences between mono- and polycrystalline types of solar panels are not so significant and the choice will strongly depend on your specific situation. The first option offers a slightly higher space efficiency at a slightly higher price but power outputs are basically the same.

2nd Generation Solar Panels

These cells are different types of thin film solar cells and are mainly used for photovoltaic power stations, integrated in buildings or smaller solar systems.

Thin-Film Solar Cells (TFSC)

Thin-Film Solar Cells (TFSC)

If you are looking for a less expensive option, you might want to look into thin-film. Thin-film solar panels are manufactured by placing one or more films of photovoltaic material (such as silicon, cadmium or copper) onto a substrate.

They are also flexible—which opens a lot of opportunities for alternative applications—and is less affected by high temperatures. The main issue is that they take up a lot of space, generally making them unsuitable for residential installations. Moreover, they carry the shortest warranties because their lifespan is shorter than the mono- and polycrystalline types of solar panels. However, they can be a good option to choose among the different types of solar panels where a lot of space is available.

Amorphous Silicon Solar Cell (A-Si)

Have you ever used a solar powered pocket calculator? Yes? This type of solar panel uses a triple layered technology, which is the best of the thin film variety.

Just to give a brief impression of what “thin” means, in this case, we’re talking about a thickness of 1 micrometre (one millionth of a metre). With only 7% efficiency rate, these cells are less effective than crystalline silicon ones—that have an efficiency rate of circa 18%—but the advantage is the fact that the A-Si-Cells are relatively low in cost.

3rd Generation Solar Panels

3rd generation solar panels include a variety of thin film technologies but most of them are still in the research or development phase. Some of them generate electricity by using organic materials, others use inorganic substances (CdTe for instance).

Biohybrid Solar Cell

The Biohybrid solar cell is one of the types of solar panels, that is still in the research phase. The idea behind the new technology is to take advantage of the photosystem 1 and thus emulate the natural process of photosynthesis. In case you want to learn more about how the biohybrid solar cell works in detail, read more about it in the American Journal of Optics and Photonics. It explains in more detail how these cells work.

Cadmium Telluride Solar Cell (CdTe)

Among the collection of different types of solar panels, this photovoltaic technique uses Cadmium Telluride, which enables the production of solar cells at a relatively low cost and thus a shorter payback time (less than a year). Of all solar energy technologies, this is the one requiring the least amount of water for production. Keeping the short energy payback time in mind, CdTe solar cells will keep your carbon footprint as low as possible. The only disadvantage of using Cadmium Telluride is its characteristic of being toxic if ingested or inhaled. In Europe especially, this is one of the greatest barriers to overcome, as many people are very concerned about using the technology behind this type of solar panel.

Concentrated PV Cell (CVP and HCVP)

Concentrated PV cells generate electrical energy just as conventional photovoltaic systems do. Those multi-junction types of solar panels have an efficiency rate of up to 41%, which, among all photovoltaic systems, is the highest so far.

By this means, CVP cells have become one of the most efficient solar panels, with a high performance and efficiency rate of up to 41%. What remains is the fact, that such CVP solar panels can only be as efficient if they face the sun in a perfect angle. In order to reach such high efficiency rates, a solar tracker inside the solar panel is responsible for following the sun.

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READ  MORE-The Top Benefits of Switching to Rooftop Solar Panels for Your Home

PM-Surya Ghar Muft Bijli Yojana: Over 1 Crore Households Benefit from Solar Rooftop Scheme

The PM-Surya Ghar Muft Bijli Yojana is a groundbreaking initiative launched by the current government, aimed at providing free electricity to households through the installation of rooftop solar electricity units. This innovative scheme promises 300 units of free electricity per month to participating households, significantly reducing their electricity bills and promoting renewable energy adoption.

Key Features of the PM-Surya Ghar Muft Bijli Yojana

  • Target Audience: The scheme focuses on households with a solar system capacity of up to 3 kW, covering most residential consumers in India.
  • Subsidy Details:
    • 60% subsidy for systems up to 2 kW capacity.
    • 40% subsidy for systems between 2-3 kW capacity.
    • No subsidy for systems exceeding 3 kW capacity.
  • Subsidy Amounts:
    • Rs 30,000 for 1 kW systems.
    • Rs 60,000 for 2 kW systems.
    • Rs 78,000 for 3 kW systems.

Steps to Install a Solar Rooftop System

  1. Register on the National Rooftop Solar Portal: Start by registering on the official portal.
  2. Choose a Vendor: Select a vendor from the list provided on the portal.
  3. Valid Electricity Connection: Ensure you have a valid electricity connection and have not availed any other subsidy for solar panels.

Financing Options for System Installation

If the cost of system installation exceeds the subsidy:

  • Low-Interest Loans: Access collateral-free, low-interest loans until the subsidy is credited.
  • Upfront Cost: Pay 10% of the cost upfront.
  • Remaining Cost: Secure a loan for the remaining 90% at a 7% interest rate.
  • Subsidy Offset: The central subsidy will offset the loan amount upon system commissioning.
  • Loan Repayment: The remaining 30% of the loan is repaid over a 10-year period through monthly installments.

Benefits of the Scheme

  • Cost Savings: Significant reduction in electricity bills with 300 units of free electricity per month.
  • Sustainable Energy: Promotes the use of renewable energy, reducing carbon footprint.
  • Financial Assistance: Easy access to subsidies and low-interest loans.


The PM-Surya Ghar Muft Bijli Yojana is a transformative step towards sustainable energy and financial savings for Indian households. By leveraging the power of solar energy, the scheme not only helps in reducing electricity costs but also contributes to a greener environment.

For more information on the scheme and to register, visit the National Rooftop Solar Portal.

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READ MOREThe Top Benefits of Switching to Rooftop Solar Panels for Your Home

Are high electricity bills and unreliable power holding you back from using electricity freely? Imagine harnessing the sun’s power to fuel your appliances without interruptions, slashing costs. Embracing solar energy isn’t just about saving money; it’s a step towards a sustainable future. By reducing bills and carbon footprint, and gaining independence from centralized power, solar power for homes offers a ton of compelling benefits!

Installing solar panels is a significant commitment for homeowners. While many understand the perks of transitioning to green energy, concerns about solar energy costs, space needs, and maintenance often arise.

Yet, what’s overlooked is that solar is an economic investment, not mere spending. The financial gains from a rooftop solar power plant far exceed its initial cost. Not having a solar power system in your house is similar to having a body without legs, since you’re missing out on something immensely valuable.

Did you know that 1 hour of solar power can fulfill a year’s requirements? Surprisingly, we tap into just 0.001% of this energy. As solar tech evolves, our capacity for harnessing abundant solar energy grows. The International Energy Agency notes a rapid surge in solar energy use, surpassing other fuels. A future beckons where we’ll collectively relish the power and perks of solar energy.

Solar Panels: How They Work

Solar cells, primarily made of silicon, convert sunlight into solar energy. When photons hit these cells, they displace electrons, creating an electrical circuit. Connecting the positive and negative sides of these cells generates electricity as electrons flow through the circuit.

Now, let’s explore some top factors outlining the benefits of Solar Energy:

Reduced Electricity Bills
Lowering your electricity bills with solar power is common knowledge. But consider this: Is continuously paying bills the optimal choice? Electricity powers our daily lives—our homes, workplaces, and gadgets.

Imagine this scenario: Instead of monthly bills, what if you made an initial investment equal to five years’ worth of bills? Subsequently, you’d save money for the remaining years. Though it might seem substantial initially, it’s akin to a long-term savings strategy.

Adopting solar power not only diminishes reliance on conventional electricity but also yields long-term financial savings. Why not initiate this change today? It can significantly impact both your life and your finances.

Cost-effectiveness and Durability
Maintaining your rooftop solar PV system is remarkably cost-effective. Its design lacks moving parts, reducing maintenance to routine cleaning for optimal functionality. While the solar battery might require more attention, regular inspections ensure timely preventive maintenance.

Despite exposure to harsh weather, rooftop solar systems are resilient and durable. Home solar installers typically offer a 25-year performance warranty on solar panels, assuring longevity and reliability.

Embracing Solar Independence
Shifting to solar power diminishes reliance on centralized grids, ensuring greater autonomy amid escalating demand and erratic supply. Solar energy secures a sustainable, reliable investment. Integrating a battery backup enhances self-sufficiency, enabling power generation and storage during grid outages for comprehensive energy autonomy.

Environmental Contribution
While fossil fuel-generated electricity remains convenient, it wreaks havoc on the environment. Opting for solar rooftop systems signifies an investment in clean, renewable energy beneficial for the planet. Solar power is entirely clean, producing no air, water, or greenhouse gas pollution. It’s carbon-free, emitting no harmful gasses during electricity generation, also reducing reliance on finite resources. Revel in guilt-free, continuous access to renewable, clean power daily!

Government Subsidy
The Indian government is striving to boost its solar capacity to meet set goals. To incentivize this, subsidy schemes or Central Financial Assistance (CFA) are available, often supplemented by state subsidies in various regions. For instance, in Punjab, buyers of rooftop systems up to 3kW can receive a 40% CFA. Meanwhile, in Delhi, a 30% subsidy is offered for solar systems of similar capacity.

Utilizing Solar Energy
Solar power serves diverse functions, generating electricity or heat (solar thermal) for various applications. It powers areas lacking electricity, aids industrial operations, provides clean water, assists in household tasks, and even supports space satellite operations.

Technological Advancements
The industrial sector has expanded significantly with the rising adoption of solar energy, expected to accelerate further. Overall, employing solar panels enables significant electricity savings, reducing hefty bills by harnessing the natural resource of the Sun.


Owning a rooftop solar power system offers significant advantages, particularly amidst rising traditional electricity costs. Embracing solar energy allows for reduced utility bills while maintaining your lifestyle.

At Solarurjaa, we specialize in tailored, durable residential solar rooftop systems. Our systems, backed by extensive performance warranties, ensure substantial electricity bill savings right from the start.

Our comprehensive solution ensures a hassle-free, rewarding, and convenient experience. Whether seeking a space-saving solar system or one that enhances your home’s aesthetics or rooftop garden, we provide options to suit every home and lifestyle.

Switch To Solar With Solarurjaa Family – Contact Us Today

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