What Is Bifacial Solar Panel and How It Works
With the increasing demand for cleaner and efficient energy solutions, the technology has evolved to offer better products. Among them are bifacial solar panels. With a simple tweak in existing design, they have been made to increase the efficiency of energy output by up to 30%. These devices capture sunlight from both ends to enhance the power output.
Are you aware of how they work or what specific conditions they require for higher energy efficiency? Understanding these is crucial before going for bulk installation. We provide the relevant insights about what is a bifacial solar panel, how it works, the factors and associated benefits right here. So, scroll to know!
What is Bifacial Solar Panel?
Solar panels, photovoltaic panels or PV panels are the devices capable of converting solar energy into electric energy. The traditional solar panels comprise photovoltaic cells present on sun facing side to carry out the energy conversion. These are also called monofacial solar panels. Stepping up the efficiency of traditional solar panels, there is new variiety known as the bifacial solar panels.
They comprise photovoltaic cells on both sides, thus enhancing their efficiency in generating electricity. The bifacial solar panels receive direct sunlight on the front. Additionally, the backside receives light reflected from the reflective surface, such as ground with light-coloured stones or a white Thermoplastic Polyolefin (TPO) roof, to generate electricity. These are well-suited for commercial buildings, buildings with flat roofs and large-scale industrial setups. The better efficiency of a bifacial solar panel, however, depends on factors like surface reflectivity, tilt and height.
How does a bifacial solar panel work?
Knowing what are bifacial solar panels, let's progress to the working of the bifacial solar panel. It is simple to understand. The front side has protective glass just like traditional solar panels. It is accompanied by the presence of solar cells or photovoltaic cells. However, the conventional options have an opaque backside.
The bifacial solar panels have a back side made of either glass or a clear plastic sheet. It comprises photovoltaic cells that help capture the albedo light, i.e., the sunlight that is reflected by the ground. Thus, here the solar energy is absorbed from both sides and subsequently converted into electricity. The bifacial solar panels generally allow the generation of up to 30% more energy with the help of albedo light.
Factors Affecting the Efficiency of Bifacial Solar Performance
The bifacial solar panels’ performance depends on a variety of factors. They are:
- Light source: Especially, the quantity of albedo light has a role in determining the generated power. Areas with light floors or rooftops generate more energy due to better reflection. The list also includes locations with sand, snow or coloured roofs. However, areas with asphalt or dark soil do not exhibit such efficiency.
- Installation: The tilt angle and height at which the solar panel is installed have a major role in allowing the capture of maximum sunlight. The increased tilt angle and better height enhance the light absorption, thus delivering better energy output.
- Weather and cleanliness: The number of hours of sunlight available has an obvious impact on the power generated. Further, the presence of dust and debris, especially in sandy areas, can limit the available sunlight. Hence, efficiency is influenced by regular cleaning.
Advantages of a bifacial solar panel
The advantages of a bifacial solar panel are as follows:
Increased Energy Production
The ability to capture sunlight from both sides and use the same helps increase the energy production. The ground installations can generate around 11% more power, while usage with solar trackers enhances this percentage to 40%.
Better Low-Light Performance
The low light limitations of monofacial solar panels are further eliminated due to the presence of a capturing panel on both sides. Hence, the production in bifacial solar panels is comparatively higher than that of traditional ones.
Durability
The tempered glass covering on both sides of these solar panels contributes to better durability. These are generally designed to withstand temperature, wind and UV rays. These panels even have their lifespan extended up to around 30 years in the absence of a metal frame. Otherwise, the degradation of the metal frame with time would compromise its durability.
Versatility
The flexibility to install the bifacial solar panels on the rooftop, group and floating systems adds to their versatility. It allows efficient use of sunlight at different times of the day, thus providing better output.
Potential for Lower LCOE
Levelized Cost of Energy (LCOE) determines the average cost of producing a single unit of energy over the lifetime of an energy-generating system. The higher energy output in the bifacial solar panel due to dual faces decreases the LCOE.
Reduced PID
Potential Induced Degradation (PID) occurs when electricity flows through the wrong path and hence damages the solar cells, thus reducing their performance. It happens in the presence of frames on solar panels. Hence, the frameless bifacial solar panels, owing to the absence of a frame, do not face such problems, thus reducing the PID.
Conclusion
Bifacial solar panels are an effective upgrade in solar panels that allow capturing sunlight from both sides. It helps enhance the energy output. The installation of these solar panels, however, requires careful planning to ensure maximum capture of solar energy. The presence of more albedo light plays a major role in enhancing the returned output. If you are looking for such quality and sustainable energy sources, the L&T-SuFin deals with bifacial solar panels. Get a quote for bulk purchase now, along with loan facilities.
FAQs
Can I use bifacial solar panels on my roof?
Yes, the rooftop installation of bifacial solar panels is preferred in commercial settings.
Are bifacial solar panels better?
Yes, bifacial solar panels are better compared to traditional monofacial solar panels due to more energy input and hence better output and efficiency.
What is the lifespan of a bifacial solar panel?
Generally, the lifespan of bifacial solar panels ranges from 25 to 30 years. However, it depends on a variety of factors like manufacturing quality, maintenance, panel type and warranty.
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How to Measure Ceiling Fan Size: Complete Guide
Ceiling fans are not just an accessory in Indian homes. They are a cost-efficient and simple solution to the blazing heat of summer months. Whether you live in the harsh weather of Rajasthan or the coastal climate of Mumbai, a fan is a must-have for every Indian household. An ideal ceiling fan is one that fits perfectly in your room and offers elegant decor to your space. That is why the measurement of a ceiling fan is so crucial. If it’s too short, you won’t get the desired results, and if it’s overpoweringly large, that’s a no-no for small spaces.
On that note, are you aware of how to measure ceiling fan size? If not, don’t worry. We’ll discuss all about it and more in this blog.
How to Measure a Ceiling Fan?
Dear readers, before we learn how to measure a ceiling fan, it’s time to revise your Maths class lessons today! First of all, ceiling fans are measured in inches, which denotes the wingspan or diameter of the fan. This will also help determine how much area your fan covers when it's spinning. There are different methods for how to measure ceiling fan size, depending on whether your fan has an even or odd number of blades:
Step 1: Switch off the fan
Turn off your fan and keep your fingers to yourself till it comes to a halt. If it’s dusty, proceed after cleaning it with a soft cloth.
Step 2: Gather Your Tools
Before asking how do I measure ceiling fan size, bring on your measuring tape and a step ladder (if needed). Hold the starting point of the tape at the tip of the blade.
Step 3: For even-numbered Fan Blades
Stretch the tape to the end of the opposite blade. Record the number from the first blade’s tip to the others. The number on the tape is your fan’s diameter.
Step 4: For odd-numbered Fan Blades
Measure the distance from the blade’s tip to the centre of the fan. Then multiply the distance by 2 to get your diameter. For example, if you recorded 5 inches from the centre of the fan. Then, 5x2 = 10 inches is your diameter.
Ceiling Fan Size Chart
While looking for a new ceiling fan, we are always threatened by questions like, how do you measure ceiling fan size and what is the right size? The following is a size chart for ceiling fans to help you find a perfect fit for your place:
Room Size (Feet)
| Room Size (Feet) | Recommended Fan Size (Inches) | Recommended CFM |
| 6′ x 6′ | 24″ to 36″ | 3,000 – 4,500 CFM |
| 10′ x 10′ | 37″ to 48″ | 4,000 – 5,500 CFM |
| 12′ x 12′ | 49″ to 56″ | 6,200 – 7,500 CFM |
| 15′ x 15′ | 60″ to 72″ | 7,000 – 9,000 CFM |
| More than 15′ x 15′ | Above 72″ | 9,000 – 11,000+ CFM |
How to Determine Height of Ceiling Fans?
We all hate those really tall fans that barely offer cooling to anyone. Simultaneously, long fans with a short ceiling can be a dangerous affair for tall people. Mastering how to determine the size of a ceiling fan is not just for looks, but to ensure proper ventilation and air flow in the space. Let’s learn how you can determine the height of ceiling fans:
- If you have a tall step ladder, a measuring tape, and a trusted buddy, measure the height of your ceiling.
- Ideally, a ceiling fan should be at least 7 feet above the ground. So, if your ceiling is 8 or 9 feet tall, opt for a low-profile ceiling fan.
- Similarly, there should be a minimum of 8 inches of space from the blades to the ceiling. So, if you have a ceiling lower than 8 feet, “hugger” fans or flush-mount fans are the best.
- If you have a ceiling higher than 9 feet, you’ll need an appropriate downrod to enjoy proper airflow.
How to Measure Ceiling Fan Downrod Length?
A downrod, as the name suggests, is a long metal rod that makes your ceiling fans hang lower. It connects the motor housing to the mounting hardware. It also helps to stabilise fans and offer added protection to the connection. For taller ceilings, downrods are a necessary equipment. After learning how do you measure fan size, let’s find out how you can measure the downrod length:
- First of all, measure your ceiling height as mentioned above. Let’s say it comes to 12 feet or 144 inches.
- Measure your fan’s height or refer to the box or size guide on the brand’s website. (without the downrod). Also, include any light fixtures or smart device additions on the fan. Let’s keep it at 12 inches.
- Now, take your desired fan height (usually 8 feet or 108 inches).
- Put the numbers into the formula,
Downrod Length = Ceiling height - Fan Height - Desired Hanging Height
144 - 12 - 108 = 24 inches
So, you need 24 inches of downrod for an ideal fan placement.
Additional Ceiling Fan Size Considerations
Here are a few extra considerations to help you find the perfect number and size of fans for your space:
- Room Size: If you have a large or wide room, opt for multiple fans to ensure proper ventilation and air flow.
- Ceiling Shape: For ceilings with a slope, you may have to buy an angled ceiling wall mount adapter to install your fan securely.
- Obstructions: It is advised to maintain at least 30-inch clearance between fan blades and any obstructions. It includes furniture, walls, lights etc.
- Ceiling Support: Fans may not be very heavy in weight, but they do require a proper and well-built ceiling support.
Conclusion
With our detailed guide on how to measure ceiling fan size, you can purchase the right fan on your first search. Learning how are ceiling fan sizes measured ensures that you enjoy optimal performance and safety from your fan by making the right choice for your space.
If you’re searching for a durable BLDC ceiling fan or a high-quality traditional ceiling fan, L&T-SuFin has a wide range of options for you. You can get the best prices and enjoy pan-Indian delivery at your doorstep. For people looking for bulk purchases, they offer incredible discounts too. Get your quotes now!
FAQs
How do I know what size my ceiling fan is?
Measure the blade span. For even-numbered blades, measure from tip to tip across the fan. For odd-numbered blades, measure from the tip to the centre and double it.
What is the difference between a 1200 mm fan and a 1400 mm fan?
A 1200 mm fan has a blade span of approximately 48 inches, suitable for rooms up to 144 sq ft. A 1400 mm fan spans about 56 inches, ideal for larger rooms up to 225 sq ft.
What size fan for a 10x10 room?
A 10x10 room typically requires a ceiling fan with a blade span between 36 to 42 inches for optimal airflow.
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How Inverter Works: A Complete Technical Breakdown
The uninterrupted power supply is a basic necessity in the existing scenario, where offices are run from anywhere and at any time. The cost-effective and simple solution to meet such needs is inverters. These devices accompanied with battery help offer an effective backup regardless of the time of power outage. The duration however depends on the type of battery.
Apart from these basic facts, there are more technical aspects associated with inverters, such as ‘what is an inverter and how does it work’. These are essential to be known for informed decision-making. Further, their benefits in terms of cost savings and other boons must also be well understood to decide their need in your life. So, read on to be enlightened.
What is an Inverter?
An inverter is an electronic device that provides an Alternating Current (AC) power supply from the stored Direct Current (DC). The DC power can be obtained from the main grid or solar panel and stored in the inverter battery. The stored energy as DC is then converted into AC by inverter to power the appliances.
Types of Inverters
There are three types of inverters commonly available and used in India. They are described below:
Square Wave Inverters
They generate AC current in the square waveform, making it comparatively less efficient compared to pure and modified sine wave inverters. They are easily available in the market. These inverters are well-suited for applications where only some devices are to be connected to the inverter or the ones that require minimal power for startup. Also, they make noise.
Modified Sine-Wave Inverters
They offer better efficiency and compatibility with the appliances while allowing connection with multiple devices simultaneously. They are well-suited for powering the appliances that do not need a start-up surge of power and the ones with resistive loads such as electric heaters, ovens, coffee machines and others. These inverters are cost-effective as compared to pure sine wave inverters.
The downside associated with these inverters is the few minutes taken to get on and off during the power outages. They can also impact the appliance performance intermittently at irregular periods, causing flickering of lights and noise generation in appliances.
Pure Sine-Wave Inverters
These are the most suitable inverters for usage due to their production of smooth and consistent current. They are reliable, and their power supply matches that of the main grid power supply. These inverters can be used for appliances with heavy power requirements and can be used simultaneously with multiple devices. They are also compatible with sensitive electronic devices. However, they are more costly compared to other options due to their better performance.
How Does an Inverter Work?
To understand inverter how does it work, here is a stepwise insight into its mechanism:
Step 1: The inverter battery stores the electricity available from the main supply. It can also obtain electricity from renewable resource such as solar energy, where electricity generated from solar panels is used for storage. If the supply is in AC, it is converted into DC for storage.
Step 2: In the case of a power outage, the stored electricity in DC is converted back to AC by the inverter. This supply reaches the connected appliances and provides them with power to start again and run continuously until the electricity source in the battery runs out or until the power is back.
Step 3: Once the main supply is back, the appliances get direct electricity from the main source. The inverter battery starts charging again.
Hence, this is how a power inverter works to offer an uninterrupted power supply.
Benefits of Using an Inverter
Knowing how inverter works and other aspects, let’s shed some light on their benefits apart from working as a power backup. So, the advantages of the inverters are:
Enhanced Energy Efficiency and Sustainability
The inverters optimize power usage thus exhibiting enhanced energy efficiency. They do so by supplying electricity only when needed thus reducing the energy waste. Further, the capability to use the solar energy adds to the sustainable and clean use while lowering the carbon footprint.
Flexibility in Power Supply
The inverter is a backup service that enables an uninterrupted power supply. The automatic switching between grid power and stored energy offers flexible usage in case of any power outage.
Power Quality Improvement
With pure sine wave inverters designed to offer electricity capable of powering sensitive devices, the delivery of improved power quality is another benefit of inverters. They provide stable voltage and frequency and reduce power fluctuations and noise to ensure proper quality.
Smart Monitoring and Control
Modern inverters are now equipped with real-time performance monitoring options. It includes monitoring energy production and consumption. They also come equipped with enhanced safety and remote monitoring and control options.
Economic Benefits
The capability to use solar energy for electricity storage exhibits their ability to run without a grid source. It is a cost-efficient option that helps lower long-term energy bills.
Conclusion
Inverters are no longer just power backup devices. They have transcended to become smart, energy-efficient and cost-effective options. Providing uninterrupted power supply, you must understand in ‘how inverter works’ that the inverter betteries get along with both solar power and grid electricity for recharging.
Knowing their types, benefits, what is an inverter and how does it work, the choice of finalizng an inverter would be easy and better. Further, to proceed with placing orders in bulk, to avail easy loan facility or to get competitive and high quality quotes for products from multiple sellers within 24 hours, explore L&T-SuFin now. Moreover, find the off-grid solar inverter and the on-grid solar inverter here.
FAQ
What is the basic principle of the inverter?
The basic principle of the inverter is that it stores electricity in the battery in the form of DC. During power outages, the DC is converted into AC by inverter to provide backup power.
Does an inverter save electricity?
The ability to integrate with the renewable energy sources for obtaining the energy and also the ability to provide electricity only when needed helps the inverters save electricity.
Can an inverter cause a high electricity bill?
The power usage by inverter battery for recharging is negligible. Further, the high efficiency devices lower the wastage of delivered energy. Hence, the inverters do not cause significant increase in electricity bill. However, the impact may vary depending on inverter efficiency and frequency of power outage.
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Understanding How Solar Panels Work Step-by-Step
We see the sunrise every day, warming up the Earth and brightening up our lives. But behind that glow is something powerful, something that we can actually use. We are talking about solar energy. Solar energy can power your home offices and even entire cities. It captures sunlight using panels and turns it into usable electricity. It works best during the day, especially when energy use is also at its peak. Curious how solar panels make that happen? Read on to discover how solar panels work, what their advantages are, and why you need them.
How Do Solar Panels Work?
So, if you are thinking about how solar panels work and turn sunlight into electricity, then read the table below that breaks down the process step-by-step for you:
| Step | What Happens |
| 1 | Sunlight hits the solar panels. |
| 2 | Photovoltaic cells inside the panels absorb sunlight. |
| 3 | The sunlight excites electrons in the cells. |
| 4 | This creates a flow of direct current (DC) electricity. |
| 5 | The DC electricity is sent to an inverter. |
| 6 | The inverter converts it into usable alternating current (AC) power. |
What are Solar Panels Made of?
Solar panels or photovoltaic panels are made of tiny solar cells, mostly made of silicon. The cells are placed between layers of glass and are designed like a battery with positive and negative sides to create electricity. When sunlight hits them. This interaction releases electrons, generating direct current electricity to make sure the panels work overtime. They’re also sealed with protective coating and encapsulated to guard against environmental damage like rain, heat or snow.
How Do Solar Panels Generate Electricity?
Solar panels produce electricity in the form of direct current, which means the electricity flows in one direction only. It’s the same idea as a battery lighting up a torch, but the power we use in our homes and the national grid is alternating current (AC), where the flow keeps switching directions. That kind of electricity is generated using spinning coils and magnets powered by mini sources from wind, solar, and coal. Since solar panels naturally produce DC output, we need an inverter to convert to AC. This allows solar energy to be used in the grid and powers everyday appliances safely and efficiently.
Advantages of Solar Panels
Solar panels come with a lot of benefits that make them a top choice for many users. Take a look at some of the most notable ones:
| Advantage | Description |
| 1. Clean Energy | Solar panels use the sun to make electricity without causing pollution. |
| 2. Big Power Capacity | The UK has 14.6GW of solar, more than four times the biggest fossil fuel plant. |
| 3. Quiet Operation | Solar panels don’t make noise, so they work silently anywhere. |
| 4. Flexible Installation | They can be set up on rooftops or large open land like solar farms. |
| 5. Supports Wildlife | Solar farms can give bees, birds, and butterflies a peaceful home. |
| 6. Safe to Use | Made mostly of silicon, solar panels don’t leak or release harmful fumes. |
| 7. Saves Money | They reduce your electricity bills and pay for themselves over time. |
| 8. Reduces Carbon Footprint | Using solar helps cut down on harmful emissions. |
Conclusion
Investing in solar energy is a smart move, and the right solar inverter makes all the difference at L&T-SuFin. We bring you a wide range of dependable solar inverters that are built to last and easy to use. With top-tier products, simple navigation and expert support. We are here to help you power your space with confidence. Choose L&T-SuFin and shop solar inverters from top brands. No complications, just quality products in a smooth buying experience.
FAQs
How do you check if your solar panel is working?
You can check your solar meter or inverter display to see energy output. Lower output on cloudy days is normal. If your electricity bill seems unusual, there might be an issue. However, it is best to contact your solar company to confirm if everything is working properly.
Can I run a 1.5-ton AC on solar?
Yes, you can run a 1.5 ton AC on solar if you have a system that is powerful enough with the right number of panels and a decent inverter. You will also need a battery if you want to use it at night.
Does a solar panel work at night?
No, solar panels do not produce electricity at night. They need sunlight to generate power. However, you can store power for nighttime use in a battery.
How much does a solar battery cost?
Solar battery prices in India can range from ₹30,000 to ₹1,00,000 or more. It all depends on the brand capacity and technology.
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Foam Extinguisher Uses: Best Fire Types and Applications
To be honest, no single extinguisher can handle every kind of fire; so, choice is quite important since every type of extinguisher works for a distinct form of fire.
The good news is that portable fire extinguishers are saving lives and are rather efficient. According to surveys, portable fire extinguishers stop 93% of fires. Still, the success percentage just relies on one factor: selecting the correct fire extinguisher. A foam fire extinguisher is one of many types of fire extinguishers. But what exactly is it? When should we use it?
In this article, we'll discuss what foam extinguishers are and foam extinguishers for what type of fire should be used. Let’s dive into it.
What Is a Foam Fire Extinguisher?
A foam fire extinguisher uses a mixture of water, air, and foam to put out fires. It works by encasing the fires with a thick covering of foam that puts out the fire by stopping its oxygen supply. This doesn’t let the fire restart. It can be used on different types of flammable materials, like wood, paper, cloth, flammable oils, diesel fuel, and alcohol. Foam fire extinguishers can be used for a variety of fires. But which ones?
Types of Fires Foam Extinguishers Are Suitable For
There are certain type of fire foam extinguisher used for. As we already mentioned, foam Fire extinguishers use include combating burning solids like wood as well as liquid fires like burning petrol and diesel. Still, fires are generally classified as A, B, C, etc, which are called “class of fires”, and foam based fire extinguisher used for Class A and B fires. But what are they?
Class A Fires
Class A fires involve ordinary combustible materials like wood, paper, cloth, and some plastics. These fires have low ignition temperatures and a tendency to leave ash behind. The reason foam fire extinguishers are used here is that the foam is generally water-based, making it suitable for this.
Class B Fires
Class B fires are those containing flammable liquids or gases like gasoline, oil, and propane, and are highly lethal since they spread rapidly and burn liquids and gases with great heat of burning. Because they effectively trap and cool down the burning flammable liquids, foam fire extinguishers tackle class B fires and hence block the release of vapours able to fuel the fire. This is one of the biggest advantages of foam fire extinguishers.
Where Are Foam Fire Extinguishers Commonly Used?
Now, before you head out to get a foam fire extinguisher, you need to be aware of uses of foam extinguisher. Common sites where there is a risk of both Class A and Class B fires are where foam fire extinguishers are most often used; 3 such places exist where the risk of such a fire is highest.
Commercial Buildings and Offices
Commercial buildings and offices have a high chance of catching class A fires, with paper documents used all the time, and also class B fires, as commercial buildings sometimes make use of or store flammable liquids, including various solvents for paints, and cleaning chemicals. Both such fires can be suppressed by a foam fire extinguisher, which is why it is a great choice for these places.
Industrial Facilities and Warehouses
Much like commercial buildings, these places deal with wooden crates and flammable liquids like gasoline all the time, which is why there needs to be a fire extinguisher for such places where there is no risk of re-ignition and minimal water damage. Foam fire extinguishers meet both of these criteria, and as a result, they’re a great choice for industrial facilities and warehouses.
Petrol Stations and Chemical Storage Areas
This one is pretty self-explanatory. Petrol Pumps or gas stations have petrol and diesel right there being sold all the time, and the risk of a class B fire breaking out is always there. Chemical warehouses also handle various kinds of chemicals, some of which are flammable, which is the ideal recipe for a class B fire. Hence, these facilities have to maintain a foam fire extinguisher close to hand.
Conclusion
Foam fire extinguishers put out class A and B flames, which usually come from things and liquids that can catch fire, like gasoline, wood, and so on. Foams that form water-based films are also known as AFF or spray foam fire extinguishers. These fire extinguishers can be used both inside and outside without any problems.
Warehouses, petrol stations, offices, and commercial buildings where flammable materials such paper, wood and gasoline are present often use these fire extinguishers.
If you are looking for the best foam fire extinguishers, you can check out L&T-SuFin now.
FAQs
Why is foam used to extinguish fire?
When sprayed over a fire, the foam in foam fire extinguishers develops a coating around it from a combination of water, air and foam. This layer guarantees a cut off of oxygen supply and prevents the fire from re-igniting. Given Class A and B flames, which can be re-ignited somewhat rapidly, this is absolutely crucial.
What type of fire is Class A foam used for?
The term itself explains it: Class A foam is meant to handle Class A Fires. Among other materials, these fires involve wood, paper, fabric, and some polymers. In structural and wildland firefighting, where water by itself might not be sufficient, it also finds application.
When not to use a foam fire extinguisher?
Though they are quite useful, there are some areas where you should not use a foam fire extinguisher at all. For class C fires, for instance, foams cannot effectively confine flammable gases, and in class D fires, the water in the foam can react strongly with specific metals such as sodium. Furthermore, in class F fires, the high temperatures of cooking oil flames could render the foam ineffective. Foam extinguishers could damage the equipment and be useless on electrical fires. Though some foam extinguishers are tested for use on live electrical equipment, they should only be used carefully and from a safe distance.
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On-Grid vs Off-Grid Solar Systems: Key Differences Explained
Thinking of switching to solar, but not sure where to start? One of the first things you need to decide is whether to go for on-grid or off-grid. Each system has its perks, trade-offs, and an ideal match, and choosing the right one depends on your energy goals. Whether you are seeking energy independence or want to save with net metering, understanding the differences between off grid solar vs on grid solar power is key to making the right choice. In this blog, we have simplified the comparison so you can confidently move forward. Read on and get the full breakdown of on grid vs off grid solar inverter systems.
What Is An On-Grid Solar System?
An on-grid solar system is connected to your local electricity supply. It powers your home or business using solar panels during the day, and at night or on cloudy days when the sun isn’t shining, you can still rely on the grid. If you generate more energy than you use, it goes back to the grid, and you might earn credit through net metering, depending on where you live. It is the most common and cost-effective solar setup for urban homes and commercial spaces.
Here is how it works:
| Component | What It Does |
| Solar Panels | Capture sunlight and convert it into direct current (DC) electricity. |
| Inverter | Converts DC electricity into alternating current (AC) for household use. |
| Electrical Service Panel | Distributes the AC electricity to power lights, appliances, and devices. |
| Net Metering | Sends extra electricity back to the grid and earns credits (varies by state). |
What is an Off-grid Solar System?
Off-grid solar systems are independent power solutions. They do not depend on the main utility grid. Off-grid solar systems use solar panels to generate electricity and store excess power in batteries for later use. These systems are ideal for remote or rural areas where grid connections are weak or unavailable.
Here is how they work:
| Component | What it Does |
| Solar Panels | Capture sunlight and convert it into DC electricity |
| Charge Controller | Regulates the flow of electricity and directs excess to battery storage |
| Battery Bank | Stores electricity for use at night or during cloudy weather |
| Inverter | Converts stored DC power to AC for appliances |
| Distribution Panel | Distributes AC power to devices and appliances |
| Electricity Backup | Optional backup sources support power during high demand or low output |
Difference Between On Grid And Off Grid Solar System
Before you decide what solar setup suits your house or business, it is important to understand the difference between on-grid vs off-grid solar systems. Take a look at the table below to understand the comparison in detail:
| Aspect | On-Grid Solar System | Off-Grid Solar System |
| Grid Connection | Connected to the electricity grid | Not connected to the grid |
| Energy Source at Night | Uses electricity from the grid when solar power isn't available | Uses energy stored in batteries |
| Battery Requirement | No batteries needed | Needs batteries to store solar power |
| Installation Cost | Less expensive | More expensive due to batteries and extra parts |
| Maintenance | Easier to maintain | Needs regular battery maintenance |
| Power Backup | Loses power during grid failures | Keeps running even during blackouts |
| Suitability | Ideal for cities with good grid access | Best for remote areas with no grid connection |
| Excess Energy Usage | Sends extra power to the grid and earns credits (net metering) | Stores extra power in batteries |
| System Size | Usually smaller and simpler | Often larger due to storage needs |
| Government Incentives | May benefit from net metering and subsidies | May have fewer subsidies or different incentives |
| Environmental Impact | Lower overall footprint | Uses more materials (batteries), so slightly higher impact |
| Energy Independence | Depends on the grid | Completely independent from the grid |
How an On-Grid Solar System Works
Here is a more detailed explanation of how on-grid solar systems work:
- Solar panels capture sunlight and convert it into DC electricity.
- An inverter changes the DC electricity into AC to power household appliances.
- The AC electricity flows into the building's main panel, supplying power directly to the home.
- Excess electricity is sent to the utility grid through a bi-directional net meter.
- Net meter tracks energy sent to and taken from the grid.
- When solar production is low, electricity is drawn from the grid to meet energy needs.
- The system automatically shuts off during grid outages to protect utility workers from live wires.
How an Off-Grid Solar System Works
Here is a more detailed explanation of how off-grid solar systems work:
- Off-grid solar systems are fully independent and don’t rely on the electricity grid.
- Solar panels absorb sunlight and convert it into DC electricity.
- This DC electricity flows into a charge controller, which regulates the power supply.
- The charge controller sends the electricity to a battery bank for storage.
- Batteries store the energy for use at night or during cloudy days.
- A distribution panel distributes electricity to different parts of the home.
- Backup generators can be used for energy when demand is high.
Conclusion
Switching to solar is a smart move, and L&T-SuFin is here to make it easy. We make it simple for you to choose the right solar panels. No matter if you’re just getting started or ready to install, we are there to support you every step of the way. With solar power systems, you can save on electricity and do your bit for the environment as well. Join the many families across India, making the switch to clean energy. Your future is brighter with us!
FAQs
Why is it called off-grid?
It is called an off-grid solar system because it operates independently and isn’t connected to the main utility grid. Off-grid solar systems generate, store, and supply their electricity using solar and battery power.
Can we convert an On-grid inverter to a hybrid?
Yes, some on-grid inverters can be upgraded to hybrid with compatible battery and controller support.
What is the advantage of off-grid?
Off-grid solar systems provide energy independence and are of extreme use in remote areas where grid access is not available.
On grid vs off grid solar power: which is better?
On-grid is more cost-effective and suits areas with a stable grid supply, whereas off-grid is better for remote locations or for those needing complete energy independence.
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