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Solar panels are typically exposed to everything because they are mounted on roofs. So, It is common to find leaves, bird droppings, dust, pollen, and even filth on the solar panels based on the factors like climate, location, or installation.

And as you've already guessed, anything that prevents light from going through is bad for the performance of your panel. This is why experts recommend cleaning solar panels twice a year.

Cleaning or maintaining solar panels is as vital as installing them. Solar panels are made up of different delicate materials. These substances have the potential to corrode or even start to degrade the panels if improperly cleaned or ignored. As a result, there may be a risk to public safety in addition to the reduction in solar production.

Continue reading this article to learn how to clean solar panels properly and what should be kept in mind. You'll also learn why it's important to clean solar panels regularly.

What makes solar panels dirty?

The one common issue that solar panel users deal with is dirty panels. An unclean solar panel poses a safety risk in addition to being an annoyance. They may reduce your system's productivity, which would increase your electricity costs. Your solar panels may be dusty for a number of reasons.

The following are a few common causes:

Water: If water enters the panel, it may lead to corrosion and lower output. Additionally, rainwater can seep inside your panel, resulting in damage and corrosion-related rusting all-around metal connectors.

Debris: Particles may get stuck and obstruct the free flow of electricity through the panels.

Dust: If you don't clean your solar panels frequently enough, dust might accumulate on them over time.

Manufacturers of solar panels claim that rainfall is sufficient to keep their panels clean. Even though rain would truly clean the solar panels, they are frequently not being rained on because they are positioned in the dry area.

What are the benefits of cleaning the solar panels?

Several solar panel users overlook the significance of regularly cleaning their panels. Your system's performance will suffer if you don't do this frequently enough because of the repellent layer of filth on them. The primary advantage of cleaning the solar panels is to maintain their functionality over time and prevent system degradation, which can lower energy output and raise maintenance costs.

Here are some advantages of cleaning solar panels:

• To increase effectiveness- Solar energy is converted into electricity by solar panels. The amount of light that is absorbed can be affected by dirt, debris, and rainfall on the panels surface, which lowers the system's efficiency. Cleaning your panels enables wear and tear and any damages to be repaired before they risk the efficiency or safety of your property.
• To keep your warranty valid - Owners of solar panels must frequently clean and maintain them, according to the manufacturers and technicians. Regularly cleaning your solar panels could void your warranty, leaving you on the hook for any damages they sustain. The confidence that any losses are not the consequence of carelessness comes from routine cleaning.
• To make it more durable- Maintaining your panels will extend their longevity and lengthen the life of the entire system. To guarantee they are shielded from dust and grime that could harm them over time, you could also use various cleaning agents.
• To increase the aesthetic attractiveness of your property- Any clients or visitors who notice dirty solar panels may assume that the business is not well-kept. Regular cleaning could improve the aesthetics of your space.
• To boost ROI Time - The cost of installing panels may be costly, so you may want to make sure that you see a return on your investment. Irregular panel cleaning might extend the time it takes to see a ROI.
• To Inspect- You get a chance to inspect and assess the state of your panels when you clean them regularly.

What steps should be followed in cleaning solar panels?

You'll eventually make the decision to cleanse your solar panels. Perhaps there is too much dirt accumulation, or you simply wish to adhere to the advice. Solar panels can be difficult to clean with water. It can be messy, takes too much time, and could harm the panels. Fortunately, a few easy tips can ensure that your solar panels look fantastic for years.

Here are some techniques for cleaning solar panels.

• Robotics- It is a cutting-edge technology that is being applied to clean solar panels. Robots are automatic machines that are programmed in a way to carry out particular tasks. Robotic solar panel cleaning is an efficient and time-saving technique.
• Brushes and Scrubbers Without Soap- Brushes and scrubbers without soap are composed of organic materials. So, the bristles of these brushes are composed of bamboo, a natural fiber. The panels can be cleaned with them without any residue being left behind.
• Creating Vibrations- Creating vibration is the finest method for cleaning solar panels, as it doesn't require water or any other toxic chemicals. Additionally, it's fairly simple and doesn't call for any specific tool. This technique uses strong frequency vibrations to remove the grime and grease from your solar panel's surface without disturbing the internal functioning.
• Nanoparticle Coatings- Using nanoparticle coatings especially made for cleaning solar panels is another method of cleaning your panels. An electrostatic spray cannon or roller is used on both glass and metal surfaces.
• Manual Cleaning- The popular technique used by users is manual cleaning of solar panels. A lawn hose, some water, sponges, is all that you need.

What are the precautions that are to be taken while cleaning the solar panels?

• If necessary, make sure to read the owner's manual on how to shut down the system prior to cleaning.
• Try to avoid going up on the roof. It's dangerous for your panels as well as you.
• The squeegeeing procedure will go more quickly and easily if any loose dirt is brushed off before showering them with water.
• Avoid using metal, abrasive, or detergent-containing items. On a solar panel, scratches can cast shadows and reduce efficiency. Use only clean water and soft silicone brush or sponges.

Wrapping Up

Solar panel maintenance is a crucial component of your domestic power system. Your solar panels may need regular cleaning to get back to optimal performance if you detect a decline in power output or a peak power variance. Cleaning solar panels may increase their life and enhance the quantity of electricity they produce.

In conclusion, cleansing your solar panels on a monthly basis is quite affordable and doesn't take much time, so be sure not to neglect this significant investment in your home.

Looking for solar panel suppliers in Chennai? Wait no more! Nantech is your best option. Let us know your requirements. Call us right away, and the rest will be handled by us.

When it comes to electricity distribution & supply, the role of transformers is essentially crucial. Before electricity reaches our homes from power stations, its overall voltage needs to be reduced in such a way that our electric wires and equipment are able to operate without getting damaged. Electrical gadgets of even the highest quality such as UPS systems from Nantech - one of the leading UPS manufacturers in Chennai can operate smoothly because transformers do their job.

So, high voltage transformers come into the picture to ensure the optimum performance of electricity supply systems and the safety of users. Needless to say, the role of transformers is quite vital. Let us learn more about the overall scheme of things.

Understanding High Voltage Transformers

Essentially, high-voltage transformers are electrical equipment with the ability to decrease the voltage phases of electricity. These transformers need to have the highest standards of insulation installed in them to meet the usage requirements of people living in a particular locality. However, even the best high-voltage transformers experience breakdowns when the voltage levels surge too much in a limited time. Technically, all high-voltage transformers operate in a single phase of voltage having core-type functionality.

Varieties of High Voltage Transformers

Electromagnetic induction is the general principle based on which all high-voltage transformers operate. However, there are three important varieties of transformers, namely:

• Electromagnetic Transformers- These have two major parts- primary & secondary coils. The primary coil tends to have a substantial number of coils, unlike the secondary coil. Therefore the primary coil allows electricity at high voltage to get reduced to lower voltage using the scientific concept of electromagnetic induction.
• Capacitor Voltage Transformers- These kinds of transformers are a lot more effective when it comes to reducing the voltage of incoming electric current. The simple rationale behind this is that they have multiple capacitors working in a series leading to an optimised reduction of voltage. Please note that the cost of insulation for these transformers is significantly higher.
• Optical Voltage Transformers- These transformers are basically sensors that make use of the Faraday Effect to measure the voltage of incoming electricity. The electricity creates a magnetic field through which light rays are allowed to pass. A linear relationship is established between the magnitude of the magnetic field and the rotation of the plane of polarization as light passes through the magnetic field induced by electrical currents. Therefore, as the current increases, so does the magnetic field, and so does the angle at which the polarized rotation is oriented.

Various Designs of High Voltage Transformers

To transform voltage as well as current electric levels, transformers use the concept of electromagnetic induction in both coils. They could be set up in either a single phase or 3 phase. When you start moving towards the bottom of the list of the high current voltage coils, the size as well as costs of a transformer tend to increase. The single-phase configurations can be set up for single-phase, dual-phase, quad phases as well as ladders or even 5-lead. Three-phase configurations, on the other hand, are set up for Wye and Delta configurations.

If the high voltage transformers are to be utilized for multiple low voltages and also to avoid short circuits, then they must have multiple primary. When you are looking to buy or design High-voltage transformers, there are some crucial factors to consider. These factors include the highest ratings for secondary voltage & current, greater output as well and power ratings. These devices can also be built in the form of toroidal transformers. Laminated transformers may also be considered. Toroidal pulse transformers generally have copper wire surrounded around with a cylindrical core to allow the magnetic flux to flow. On the other hand, the laminated transformers have layered cores. They are also referred to as E-I transformers which have been insulated using an insulating dielectric material.

The Modus Operandi of High Voltage Transformers

The method of operation of high voltage transformers must be pretty clear from reading the above sections. Various means and methods are used to decrease the voltage of electric currents in the transformers so the electricity becomes safe for use by the components to which it shall go.

The fundamental principle in transformer operation is this– an electrical charge generates a magnetic field and the magnetic force inside the winding can start producing voltages across the coil. As a result of their close vicinity, the electricity in the primary coil generates a magnetic field causing power output throughout the secondary coil to be much lower in terms of voltage. If the secondary coil has more turns, it generates more voltage, and the transformer is referred to as “set-up”. On the other hand, a lower number of turns produces lesser voltage and is termed a “step down”.

At its core, high-voltage transformers are converters that receive electricity at high voltages. Thereafter, voltages are converted from one level configuration to the other, typically from greater to lesser. The insulating abilities of these power transformers should always be cautiously created to endure these high voltages

Also Read: The Complete Buying Guide For Voltage Stabilisers

Practical Applications of High Voltage Transformers

High-voltage transformers are also utilized to power plasma generators. Specially designed coils are employed to increase voltages to levels that are sufficient to generate plasma. Wind turbines and other crucial sources of renewable energy make use of these devices to transfer energy to where it is needed. Other application areas for these devices encompass:

• Braking devices for transportation
• Production of machinery
• Electrostatic precipitators used in the management of waste
• Voltage measurement and monitoring equipment

Staying Safe When Working With High-Voltage Transformers

Since current transformers have the ability to handle high voltages, it is critical that precautionary measures are taken wherever it has to be handled directly, with the goal of preventing accidents.

• Look for burning odors as well as any dented or misaligned parts during the pre-installation checking.
• When starting to work with transformers, keep the current input disconnected.
• Always put on appropriate safety gear of high quality.
• Pay close attention to the voltage output of the device.
• Ascertain that you are aware of the peak power of your transformers. Keep in mind that more than one transformer can facilitate the balancing of load.
• Make sure that small metallic objects are not in the vicinity of the transformer.
• Ensure proper earthing of the transformer.
• Keep the transformer and all its parts away from liquids.

Takeaway

The significance of using top-notch transformers in a distribution system for electricity cannot be overstated. Transformers are an essential component for ensuring good electrical service and network security. High-voltage transformers are used in a wide range of industrial sectors and systems. They seem to be especially helpful for securely managing voltages lesser than or equal to 15,000 volts.

How often have you brought a brand-new home appliance without buying a voltage stabiliser? Probably never. If you live in a country where your electricity supply is plagued with voltage fluctuations, you will need stabilisers to safeguard your appliances. Stabilisers are essential to prevent expensive appliances from permanently damaging by power fluctuations.

A voltage stabiliser will give your appliances a long life and is a long-term investment. Our blog discusses everything you need to know about voltage stabilisers and what to consider when investing in one.

Voltage Stabilisers: Why Are They The Lifeline For Your Appliances?

As small and compact as they seem, voltage stabilisers are powerful electrical devices designed to recognise and regulate voltage fluctuations and deliver a consistent voltage output range.

Let’s explain how a stabiliser works without sounding complicated and technical. When your utility voltage is too low, the in-built electronic circuit in your stabiliser senses it, enabling an electromagnetic relay to compensate for the voltage loss and feed the regulated power to the connected equipment. When the incoming voltage is too high, the stabiliser activates another electromagnetic relay to deduct the excess voltage.

What Powers Your Voltage Stabiliser?

Your voltage stabiliser is no less of an engineering marvel. They are built with electronic circuitry that uses electromagnetic relays to change the taps of the in-built autotransformer to generate the desired voltage when the power fluctuates. When the voltage supply falls outside the range, a mechanism switches the transformer tap and brings the supply into the safe range.

There is no dearth of stabilisers in today’s market. Voltage stabilisers are in high demand due to the influx of innovative home appliances into the consumer market. Stabilisers designed with the latest technology can protect your expensive home appliances from voltage fluctuations for a long time. However, there is one contingency: You cannot use the same type of stabiliser for all your appliances. There is no “one-size-fits-all” because different stabilisers are needed for different appliances.

Why Do We Need Different Stabilisers For Different Appliances

It is important to choose a voltage stabiliser, especially for the appliance to which it will be attached. Stabilisers are classified according to the following:

• Energy limit
• Appliance features

All appliances are designed to operate on a specific energy limit, and voltage stabilisers are manufactured with these specifications. Based on these criteria, there are different stabilisers available for:

• Power mainlines
• Air conditioners
• Music systems
• LCD and LED TVs
• Smart TVs
• Washing machines
• Dishwashers
• Convection ovens
• Treadmills

It is not right to pick any stabilisers off the shelf. It is crucial to select the right one, and you need to consider aspects such as:

• Appliance’s range of power consumption
• Level of voltage fluctuations in your area

When you purchase a new refrigerator or air conditioner for your house, your salesman will recommend you to club your purchase with a stabiliser. Here are five technical factors to check when before paying for the voltage stabiliser:

1. Working range

The working range of a stabiliser is the voltage range in which the stabiliser regulates the input voltage and delivers the desired output.

2. Load connection

One of the most important aspects is the nature of the load connected to the stabiliser. Getting the VA (or Volt Ampere) from Watts (W) will require some measurements, but you can approximate the VA size by increasing Watts by 20%.

3. Surge current

You should also consider the surge current that flows through your device when you switch it on.

4. Voltage rating

Every stabiliser has a specification sticker with information about the following:

• The power rating of the device
• Voltage
• Current

The standard service voltage for stabilisers manufactured in India is 230 VAC, 50 Hertz.

5. Stabiliser rating

You can calculate the stabiliser rating by multiplying 230 x maximum rated current for all the appliances you want to connect to the device and adding an extra 20-25%. If you intend to add more appliances to it, you need to keep a buffer accordingly.

Next, you should look for certain features to ensure you are buying an upgraded device. A good, modern stabiliser should have the following:

• Indicators to display the voltage supplied to power the appliance.
• Time delay systems enable a time-lapse for the compressor to balance the current flow during a short power cut.
• Digitisation to ensure accuracy, reliability, and multi-device adaptability.
• Mounting convenience ensures the stabiliser can be mounted on walls or placed on a higher level for better protection.
• Overload protection automatically turns off the output during a short circuit or power overload.

Are you still in a dilemma about investing in stabilisers? Do you think your TV or air conditioner does not require a stabiliser because it has upgraded technology? Well, think again, or you could end up with a severely damaged device.

3 Reasons Why Your Home Appliances Need Voltage Stabilisers

A good stabiliser will not cost much, and even if it does, it is not an expense, but an investment, because it:

1. Prevents equipment malfunction

All electronic devices come with safe operating limitations, and any non-compliance can have disastrous consequences for your device, from simple malfunctioning to complete operational failure.

2. Enhances appliance longevity

Voltage stabilisers smooth out power from the electric grid by suppressing surges. In the absence of a stabiliser, your appliances are susceptible to sudden spikes and dips in the current supply. A voltage stabiliser will ensure your appliances work for years without any issues.

3. Ensures overall safety

When your expensive equipment is connected to stabilisers, there is a much lesser fire risk due to faulty wires and short circuits. In short, a stabiliser provides round-the-clock protection to electrical appliances, your home, and your family.

Some things are more a necessity than a luxury, and a voltage stabiliser is one of them. Now that you understand the importance of these devices, it is best to buy the appropriate stabilisers for the devices in your home. Nantech Power Systems, Chennai, provides a wide range of affordable voltage stabilisers for various appliances. Give us a call to find the right one for your requirements.

Uninterruptible Power Supply Systems (UPS Systems) perform backup and conditioning roles for the systems they are connected to. They are very important in situations where primary power supplies fail or other power supply problems, such as spikes, brownouts, electrical noise, sags, or surges. UPS systems protect small business applications used for communication, entertainment, or security from electrical surges or sags and prevent business disruption, data loss, or even injuries and fatalities.

In this article, we’ll tell you all about UPS Systems and have you choose the best UPS type suited to your business.

Understanding UPS Systems

The UPS is a battery backup system that can perform many important functions in a set-up that depends on a primary power supply. Its main role is to act as a secondary power supply that will run long enough to shut systems down properly and back up data sufficiently when an unexpected power outage occurs. The UPS also performs an important surge-protector function to keep devices safe from the harmful effects of abnormal voltages and surges, including reduced performance or lifespan of the device. So it saves the company a world of pain when it prevents data loss and device stress or damage by preventing forced shutdown during an unforeseen power outage.

An acid or lead battery inside the UPS system provides the backup power required when its sensors detect that the main power supply has suddenly shut down. This backup power will not be available for an extended period, but it allows operators to save or back up any critical data and shut the system down gradually or function until the power supply is back on.

Types of UPS Systems

UPS Systems are of three main types - the line interactive system, the standby system, and the online system. Other types exist, but they are usually hybrid combinations of two or multiple main UPS system types.

Let’s discuss these system types in more detail:

1. The Line Interactive UPS System

This system serves a dual purpose as a backup power source and a power conditioner. It is the optimum system type if your devices function in an environment with rare power outages but frequent fluctuations. The system can adeptly handle several ranges of fluctuation episodes before switching on its battery power backup. This benefit of handling wide ranges of fluctuations and the circuitry for voltage boosting is a critical one. In fact, wider ranges of accepted fluctuation in the system will give you more overall protection for your devices.

2. The Standby UPS System

The Standby system earned its name from its basic function of acting as a standby when there is a sudden power outage. It performs conditioning for minor surges and usually draws power from the main AC source during normal functioning. The system is also provided with an AC/DC inverter that kicks in when sensors detect trouble in the main power source. But this system has a small transfer time drawback that users should be aware of.

3. The Online UPS System

The online UPS system, also called the double conversion system, performs by isolating the device load from the main power grid. It achieves this by following an AC/DC DC/AC double switch. The online UPS system converts the incoming supply of main power to DC and then back to AC, effectively isolating the load from the rest of the grid.

This switching function is possible because of the rectifier device in the system, which receives incoming power, converts it to DC, and feeds it into the inbuilt battery and onto the connected device through an inverter. This system nullifies the need for power transfer switches. In a power outage, the rectifier drops its connection with the main grid and uses the battery energy to power the connected device until the main power is restored.

How to Choose the Perfect UPS System for your Needs

Four main factors should determine your choice of UPS systems for your devices. These are discussed at length below:

1. Determine common power problems.

Power blackouts are the most common power problems people are aware of. But when electronic devices and critical equipment are involved, you will need to be aware of the following:

• Blackouts - Power outages lasting anywhere from a few minutes or seconds to a few days.
• Surges - A brief, intense burst of electric energy when there is lightning– it affects the main power supply.
• Voltage sags or over voltage - Fluctuations in voltage that are not as intense as brownouts or surges. Voltage sag is a brief, small drop in voltage, while an overvoltage is a voltage spike.
• Brownouts - A drop in voltage for a long duration that could have been intentional, uncontrolled, or accidental.
• Frequency noise or variations - These are abnormalities in the main power supply. Frequency noise, or line noise, are abnormalities in the primary power source that cause disruptions in the power circuit. Frequency variations are usually caused where generators are in use, and the occurrence of power fluctuation is more frequent than normal.
• Harmonic distortions - This is an anomaly in the primary power source when it gives out an unusual electrical signal.

If your business is operating in an area that faces blackouts, brownouts and surges but none of the other power anomalies, a standby UPS system could work well for you. An online UPS system may be required if you face a combination of all the above power problems.

2. Select the right size.

The optimal UPS system for your business will have to be sized correctly in terms of capacity. Depending on how much equipment will need the supported power supply and the combined load or amount of power they will use, you can choose a UPS with a comparable load capacity. You can find information about capacity and load in the corresponding user manuals of your devices and the UPS system you are considering. Manufacturers or other professionals could also help you make the right connections to match device load to UPS capacity.

3. Determine optimum run time.

Runtime is the next important consideration for choosing the right UPS system. Runtime is the amount of performance time your system requires to provide alternate power when there is a power outage or other trouble in the main supply. Calculate how much time you will need to perform a safe system shutdown and data backup, and this can be used as runtime. System load or the amount of power load your system needs to back up has an effect on runtime. A larger load will mean less runtime or battery life, and vice versa.

Think in ranges when determining optimum runtime. Work from the least amount of time you will need to optimise your devices and work up from there. A broader range of runtime will give you more choice in UPS systems.

4. Choosing an appropriate form factor.

There are three main form factors or size and shape of the device housing. These are:

• Rack-mount systems - meant for server rooms.
• Desktop systems which are compact - can fit under desks and are discreet.
• Mini-tower or tower-style systems - are aesthetically pleasing and can be displayed on desks.

In short, form factor choice is usually determined by where you want to place your system.

Conclusion

UPS systems are not everyday buys. They are high-priced investments that must be carefully considered and matched to your needs. At the same time, they are necessary in most cases and are invaluable for protecting your devices and company data. If you are looking for professional, experienced UPS dealers in Chennai, our Nantech services will be just the right fit for you!

All businesses have one main goal- Providing the best customer experience. This is true even if you want to set up an EV charging station. Wondering what an EV charging station has to do with customer experience? Well, here's a fact: Charging EVs takes time. We are talking about a minimum of thirty minutes to get at least 80% charge.

Longer charging times mean longer dwell times for customers. To make their charging experience worth the time and money, you need to spruce up your charging station with adequate amenities and services.

Why Do EV Charging Stations Require Amenities?

EV charging is unlike refuelling your car or bike, where you fill it, shut it, and forget it. And let's not forget that even fuel stations nowadays sport coffee shops and mini stores for their customer's benefit. No one's complaining about having a quick cuppa or a packet of chips after filling their gas tanks, are they?

The reason for having amenities in a charging station is more profound with EVs. An EV's charging capacity depends on:

• The battery's charging capacity measured in kilowatts
• Battery size
• Charging options

Sometimes, even the weather determines how an EV's battery remains charged. Besides, once a battery is 80% charged, the charging speed slows down to prevent the battery from being damaged. However, an EV with 80% charge is good to go for hundreds of miles.

So, let's say a customer drives into your EV station to charge their car. Their dwell time will range from at least 15 to 60 minutes, even if you have an ultra-modern charging facility. What will your customers do while waiting for their vehicles to charge? Having all the potential services, amenities, and merchandise within their reach will improve their charging experience and give them a reason to return to your station.
This is also a great strategy to improve business and encourage people to opt for EVs.

So, let's check out the various amenities your EV charging station can have.

List of Facilities to Spruce Up Your EV Charging Station

1. Restrooms

A restroom is the most basic convenience businesses must provide for their customers. Once their vehicles are plugged in, the next thing they may want to do is answer nature's call. A restroom is a must, especially if your station is located on a remote highway or away from the city or town.

2. Lounge area

Having high-volume charging traffic is the key to justifying lounges. From a business perspective, a well-equipped lounge with ample conveniences such as clean bathrooms, WiFi, workstations and a coffee bar could be a valuable money-making factor. Moreover, these lounges would be useful for drivers of ride-sharing services at airports and other high-traffic areas.

3. Food service

Remember that at least 70% of the travellers who stop to charge their EVs wouldn't mind grabbing a quick bite to eat. It would not be a problem for customers to order a sandwich, burger, or burrito for the same amount of time it would take for the car to charge. And let's not forget the number of customers a coffee shop would attract just by having EV charging points in their parking lot.

However, this concept would only make sense if your station has at least a hundred charging stations.

Another ideal scenario that may work for you (especially if you are short-staffed) is to install vending machines. You can also opt for third-party vending machine services for refilling and maintenance.

4. Shops

There's a high possibility for EV owners to make a purchase while refuelling their cars. Think of it- There's no better way to kill time than to browse the aisle of a well-stocked convenience store, grab a few knick-knacks or stock up on the potato chips for kids. This incredible business strategy works both ways: You can install EV charging points at your convenience store or vice versa.

5. Entertainment

Install a wide-screen LED TV and set up a dozen comfy-looking chairs, and you will have a room full of EV owners catching up on the news or watching a cricket match while waiting for their vehicles to charge. A TV will also give weary children some respite from a long day's travel.

6. Air for tyres

Today, almost every fuel pumps have air-filling stations because it has become more of a necessity than a luxury. Besides, most stations offer this amenity completely free of cost. Hence, installing an air-filling station along with the charging outlets only makes sense.

7. Maintenance services

Generally, EVs require very little maintenance. However, you could think about investing in a small maintenance workshop, especially when business picks up and your centre starts attracting more vehicles. You can offer quick or emergency services like:

• Windshield wiper replacement
• Brake replacement
• Tyre rotation
• Wheel alignment
• Car wash
• Car vacuuming
• Waxing

Other services like car wash or self-service vacuum options can also be considered.

8. WiFi connection

Providing WiFi networks to incoming customers is a fast-catching trend. Not everyone will want to watch TV or spend time at your convenience store. You will have customers who would rather spend their time being productive at work. A strong WiFi connection in your lounge could prove immensely useful for customers willing to pay for the service.

Closing Notes

A long charging time is an excellent opportunity to provide facilities that add value to your customer's experience at your charging station. Interested in buying an EV or want to know more about improving your customer's charging experience? Call our team at Nantech Power Systems Pvt Ltd., to gain insightful guidance. Nantech provides the best EV charging solutions in Chennai. Get in touch with us today.

Have you ever considered the wiring and internal components when buying a voltage stabiliser to safeguard your home appliances? Likely not. Most of us overlook these important details.

In the case of a voltage stabiliser, the winding material is the most important component that plays a major role in how the device works. The winding material comes in two choices- Aluminium and Copper. Now comes the million-dollar question: "Which material is better- Aluminium or Copper?"

This blog analyses the differences and the functionalities of both materials to make it easier to pick the right choice. But first things first...

What is a Voltage Stabilizer & How Does it Work?

Most appliances in your home or office function with the solid support rendered by the voltage stabiliser. It is an appliance that keeps the flow of voltage-current stable and protects your devices from voltage fluctuations and erratic power supply.

Let's say there is a sudden, unexpected drop in the incoming voltage. Your stabiliser jumps into action, activating the electromagnetic relays. These relays, in turn, add extra electricity to the secondary winding and compensate for the voltage drop. Similarly, if there is a sudden increase in voltage, less electricity is relayed to the secondary winding to stabilise the output voltage.

So, essentially, the winding material is the "heart of the stabiliser," without which the device cannot work. Industry experts say that copper has the upper hand compared to aluminium, although manufacturers widely use both materials. What makes copper superior to aluminium? Why is it the preferred choice? Let's find the answers in the following discussion.

How Does Copper Differ from Aluminium as a Winding Material?

1. Thermal Connectivity

Copper has the upper hand in thermal conductivity, especially when it comes to reducing the hot-spot temperature rise in transformer windings. However, this superiority is achievable only when both windings are similar in size, geometry, and design.

It is also possible for aluminium to achieve the same thermal conductivity characteristics by making the aluminium coil 66% larger in its cross-sectional area. However, whatever the winding material, stabiliser manufacturers conduct several tests to produce acceptable hot-spot gradients. They:

• Test hot-spot characteristics of the design.
• Utilise cooling surface area, coiling geometry, conductor shape, and air ducting.

2. Current distribution

Copper's higher metallurgical properties make it a better distributor of electricity when compared to aluminium. Copper winding enables an even, reliable, and stable current distribution than aluminium winding.

3. Terminations

One problem with aluminium stabilisers is the formation of oxide, which does not enable easy detachment from terminations. Here again, copper reigns supreme because they are soft and easily detachable. This makes copper stabilisers more durable than their aluminium counterparts.

4. Galvanic action

Galvanic action occurs between two electromagnetically different metals in contact to create a conductive path for ions and electrons to move from one metal to another. Galvanic actions sometimes result in complete loss or partial loosening of contacts. In this scenario, aluminium stabilisers lose more material through galvanic action than copper stabilisers.

5. Creep Level

Under extreme loads or high temperatures, aluminium stabilisers are more susceptible to failure than copper stabilisers because the creep rate of aluminium can reach 25 times.

6. Connectivity & Performance

Due to lower energy losses, copper stabilisers perform better and are more efficient than aluminium stabilisers. Moreover, copper is more conductive than aluminium due to oxides, chlorides, and sulfides. Aluminium connections are susceptible to corrosion, so it is more important to clean and protect their joints. Also, the connections between aluminium transformers and copper building wire are not very dependable.

7. Strength and flexibility

Without a doubt, aluminium is a strong and flexible metal. But here again, copper is far superior in both aspects. Therefore, stabilisers with copper winding require fewer inspections and maintenance procedures when compared to those with aluminium winding.

8. Manufacturing expenses

Although copper is expensive, copper stabilisers require less material and cross-sections of the conductor. Therefore, it costs less to manufacture copper stabilisers than an aluminium ones. Furthermore, copper stabilisers are more viable because they require:

• Smaller manufacturing machines.
• Powder-coating set up.
• Less storage area.
• Quality control labs.

These are some of the reasons why stabiliser manufacturers prefer copper over aluminium.

Why is Copper Preferred Over Aluminium? A Quick Glance

The winner is copper all the way! Aluminium is good, but copper is the best because it has:

• More flexibility which allows it to be stretched and moulded to any requirement.
• Higher thermal and electrical conductivity.
• Greater tensile strength.
• Good soldering properties to align with any electrical device.

Other reasons why copper is highly recommended:

• Lesser material

An aluminium wound coil requires approximately 1.8 times as much cross-section to carry the same current as copper. More cross-section means more manufacturing costs.

• Flammability

Compared to copper, aluminium has a potential threat, which is its reaction with oxygen in the air, causing it to overheat and burst into flames.

• Better efficiency

Transformers with a higher copper content typically have higher energy performance and lower lifecycle costs.

We have stated enough reasons to justify why copper-wounded stabilisers are far better than aluminium-wounded stabilisers. However, in reality, aluminium stabilisers quickly gain acceptance because of the cost advantage.

Yes, copper is expensive, and that is one of the reasons why manufacturers prefer aluminium. However, awareness of copper stabilisers and their benefits will enable consumers to see beyond the price point and make the right choice.

Do you require expert advice about buying the right stabiliser for your electrical appliances? Call Nantech's team now. We are one of the most reputed inverter battery dealers and suppliers in Chennai.

Solar panels are gaining popularity among the masses for their sustainability and eco-friendliness. As efforts to reduce the environmental damage continue to increase, solar panels and other sustainable forms of energy are gaining a wider consumer base as a cheaper and more efficient fuel than coal and other fossil fuels. In this article, we take a closer look at solar panels and ways to use and maintain them efficiently.

Examining the Benefits of Solar Panels

Solar panels and solar power gain over other non-sustainable forms of energy in three important ways. They are:

• Sustainable over the long run
• Highly cost-effective compared to other forms of energy
• Energy efficient

It is now common knowledge that energy consumption methods commonly practised in homes and businesses generate large amounts of hazardous waste. This affects the environment at many levels. The use of solar panels eliminates this pollution by storing and using the sun's energy to power common household appliances like lights and heaters. Here's how the use of solar panels can be beneficial to the environment.

Using solar panels reduces:

• The production of hazardous waste

Using solar panels can help reduce our dependence on energy sources that produce hazardous chemical wastes like oil sludge and coal ash which increases the presence of metal compounds in the environment to dangerous levels.

• Air pollution

It is now commonly known that traditional methods of electricity production have had devastating effects on the environment. Power plants that generate electricity release dangerous toxins like carbon dioxide, nitrogen dioxide, mercury and particulate dust. This has led to phenomena like global warming and climate change, contaminated fisheries, acid rains and smog.

The use of solar panels can reduce our dependence on such toxic power sources. Even limited use of power panels energised by the sun can significantly impact total energy production and consumption.

• Water pollution

Water bodies have also suffered tremendously from pollution because of our dependence on coal-based power plants. They release toxins like arsenic, boron, selenium, mercury and cadmium into water bodies, effectively poisoning them. Release of large amounts of warm, low-oxygenated water into water sources has only added to the damage. The adoption of solar energy can reduce our dependence on these dangerous, unsustainable sources of energy, and also give the environment a chance to recover from the damage.

• Resource mining

Coal-based power plants raise the need for surface mining, bringing profound environmental challenges to the forefront, even before coal-based energy is produced. The energy produced by solar panels can eliminate the need for coal-based energy, thus cutting down on the impact on the environment.

Solar Power Maintenance and Protection

Solar panels are fundamentally durable and sustainable sources of energy. They can withstand adverse weather conditions. But we can take a few steps to maximise their life and protect them from unnecessary damage. Here are seven simple ways to protect your solar panels:

• Clean regularly

Periodic cleaning is necessary to maintain the optimal functioning of solar panels. Washing down with a hose pipe needs to be supplemented with a thorough scrubbing with a soft rag or sponge. Experts recommend using the rag or sponge attached to a pole from the ground level.

• Keep a check on surrounding vegetation

Falling trees are not the only things that can damage solar cells. Branches, leaves and twigs that fall continuously can scratch the surface of the cells and reduce their efficiency. This will lead to a need to replace the cells, which can be expensive.

• Inspect the sealants regularly

The sealants on the solar panels can wear with time. This will affect their functioning since water and dust can seep through the gaps into the PV mechanism and cause short-circuiting. Faded sealants can be repaired, preferably with a silicon-based sealant that is effective and easy to use. Regular inspection will help you identify areas that need repair. Major wear and tear in significant places like the area between the roof and panels will have to be replaced.

• Install weather protection features

Natural disasters and similar occurrences cannot be prevented. But there are measures one can take to control the damage. Many businesses and homeowners install lightning rods to protect solar cells from lightning strikes. Even indirect strikes can cause a power surge that can harm the panels and people.

Installing solar panels requires proper grounding for protection and proper functioning. Anchoring is also an important step in proper solar panel installation. As the name suggests, anchors are tools that hold the solar panels in place, even in the roughest weather. Panels that are mounted in the ground require proper earth-anchors to withstand any weather.

• Invest in extra protection

Natural disturbances to the smooth functioning of the solar panels can come in many forms:

• Large birds could dislodge the MC4 clips connecting the back of the panels to the wiring
• Squirrels can nibble through wiring
• Pests and rodents can disrupt and damage wiring and other parts

It is recommended that you instal mesh wiring and other protective measures to prevent such damage.

• Consider the use of retaining walls

Retaining walls are supporting structures made of pre-cast concrete, which can form an impenetrable support against weather and climatic conditions like rains and storms. These can last for decades and work to strengthen the foundation on which the panels rest. They will be a good investment if you live in places that receive large amounts of rainfall or experience other adverse weather conditions.

• Invest in an insurance policy

Solar panels are considered permanent fixtures when installed on the roof. They can be insured against damage due to fire or water and theft or vandalism. Many companies also provide insurance for accidental damage.

Solar Power As an Investment

There are many advantages to investing in solar energy. It is one of the most beneficial sources of power - it is endlessly sustainable, cost-effective, and energy-efficient. There are long-term benefits to the environment and ultimately to your health and well-being as well.

For all these reasons, it will be wise to invest in solar panels for energy production in your home. For maximum benefit, follow the tips discussed above to enjoy the benefits of solar panels for many years to come. Professional UPS manufacturers like Nantech Power Systems in Chennai can be of great help for best-fit recommendations and installation.

Every individual in the entire world today is connected through the internet. Continuous technological innovations are bringing the world closer and closer. Power is the basis to keep this technological development working. Therefore, it is important to address the power failure issue with a suitable inverter. We have consolidated all the information that one should know before reaching out to a professional inverter battery manufacturer like Nantech power systems in Chennai. Keep reading about the various types of inverters, how they work, and aftercare procedures.

An Overview of Inverters

Inverters turn on various electrical devices even when the main supply is switched off. During power failure, they are emergency backups and convert direct current (DC) to alternating current (AC). The DC or direct current is created from either a solar panel or battery, which is converted into a 110/220 V alternating current and supplied to electrical appliances. DC is converted to AC because direct current can't travel for long distances. Every electrical equipment in a building will run on an AC current from the main power supply. Another advantage of AC is that it can experience both rise and fall and change its direction periodically, whereas DC can flow only in one direction. The voltage also reverses periodically in an AC circuit whenever the current changes direction.

How do Inverters Work?

Inverters store electricity in the form of DC in their batteries. When the power fails, the inverter starts to convert the DC to AC by passing it through a transformer. The change in voltage output instantly happens to resume the supply of electricity. Thus, as the direct current passes in an inverter, a series of switches turn on and off continuously and start stepping up with the help of a transformer. Then the switches alternate the DC signal's direction to create a sustainable AC voltage. Eventually, the electrical appliances gain a power supply even when the main power is shutdown.

Types of Inverters

Type of Load

Inverters are classified based on the output waveform and the load. Based on the type of load, the two main types of inverters are:

• Three-phase inverter: Three-phase inverter is ideal for industrial use where the power load has three phases. These inverters produce 3 phase output alternating current with six diodes and three switches. Based on the conduction period of the switches, the current is divided into a 180 or 120 degree mode.
• Single-phase inverter: As its name suggests, single-phase inverters have only a single phase of power load. They have alternating switches to counterbalance them. A single-phase inverter is classified into a full-bridge inverter and a half-bridge inverter. The full-bridge inverter has four feedback diodes and four switches. The current load is balanced by automatically switching off two switches when two of them get turned on. They determine whether the half cycle of the voltage is positive or negative. On the contrary, a half-bridge inverter has two switches connected to two diodes that decide the cycle of the voltage output.

Type of Output Waveform

Depending on the output waveform, there are three classifications in inverters. They are:

• Pure Sine Waveform: Sine waveform inverters are ideal for taking heavy loads. Most of the electrical appliances we use in our daily life are compatible with sine waveform. Thus, investing in a pure sine waveform inverter is always a good option. However, they are quite expensive, and pure sine wave inverters are available at a much higher cost than the regular ones.
• Modified Sine Wave Inverter: A modified sine wave inverter is another type that can work with almost every electrical appliance. But it has the disadvantage of reducing the device's efficiency. However, these inverters are priced reasonably to suit the budget of the normal population. Another fact to consider is that the modified sine wave inverter is not ideal for appliances that require high power, like motor pumps, air conditioners, and refrigerators.
• Square Wave Inverter: Square wave inverters are the most affordable as they are very cheap. But a square wave inverter is not compatible with many electrical appliances and has very less efficiency. Thus, they are not preferred by many people.

An Insight Into the Importance of Batteries & Its Kinds

The battery is the workhouse and backbone of an inverter. The life, performance, and efficiency of an inverter solely depend on the quality of the battery. The battery is the heart of the entire inverter system to determine the backup time. A good quality battery will offer the best solution during power failure and ensure low maintenance along with high reliability. There are three types of batteries used in an inverter, and they differ based on the technology to store the current. By knowing them in detail, you will be able to choose the right one for your usage.

Flat Plate Battery

Flat plate batteries have two electrodes and are commonly referred to as lead-acid batteries. The electrodes are immersed in water and sulphuric acid, an electrolytic solution. The positive electrode contains a lead oxide, whereas the negative electrode is made of porous lead. Flat plate batteries are lightweight and cost between nine to fifteen thousand Indian rupees. These batteries need regular maintenance, which is a major disadvantage. Therefore, tubular batteries have replaced flat plate batteries in recent times.

Tubular Battery

Tubular batteries are seen to last for a longer duration than flat plate batteries. They have a life of five years and are very efficient with less maintenance. The deep charging cycles enable these batteries to perform with greater efficiency. Tubular batteries need fewer water top -ups and are more reliable compared to the flat plate battery. However, tubular batteries cost more than flat plate batteries and are available between nine to twenty-five thousand Indian rupees.

Sealed Maintenance-Free Battery

A sealed maintenance-free battery is also known as valve regulated lead acid battery or VRLA. The reason why many prefer a VRLA battery is that it requires no maintenance. There is no need to replenish the electrodes with distilled water, and they are very safe for usage as they do not give out obnoxious gases. But the sealed maintenance-free battery is very expensive compared to tubular and flat plate batteries. The disadvantage of these batteries is that they have a shorter life.

Tips to Choose the Right Inverter

If you are confused about choosing the right inverter, the points mentioned below will help.

• The first step will be to calculate your power requirements. Identify how many devices you have, including the charging points, Wi-Fi routers, fans, and bulbs. Find out the overall power consumption and then decide the right inverter for your home.
• The capacity of an inverter is different from the power consumption. The capacity stands for the maximum load an inverter will be able to handle when every appliance is in use simultaneously. Therefore, you should always pick an inverter that has a higher power capacity than your overall power requirement. Study the capacity of various inverters available in the commercial market and choose wisely.
• Battery size plays a major role in satisfying all your demands. Correct battery size will provide the right backup without hindrance for longer durations. You have to calculate the battery size depending on how much time you want the power backup for your home.

The Bottom-line

With the above details, you would have understood all that you need to know about inverters. Now you can easily purchase the right one that suits your requirements and demands. However, make an effort to identify the inverter that will be perfect for daily usage and carefully look into its maintenance criteria before purchasing. Reach out to Nantech Power Systems, the pioneers in manufacturing inverters for commercial and domestic usage. We are the only inverter battery manufacturer in Chennai to deliver products with extended maintenance-free services.

An Introduction to the Active Harmonic Filter

Facing a power quality issue? Get yourself an Active Harmonic Filter and reduce harmonic pollution during electrical installation. Using an active harmonic filter ensures that the current is "clean". An active harmonic filter requires a stable external power source to inject phase opposite current harmonics to downstream loads. Depending on the stability of the connected external power source, its efficiency will vary.

In this blog, we analyze the pros and cons of harmonics. But first, let's see what leads to harmonics in the power system.

What Causes Harmonics in the Power System?

Technically speaking, when the current waveform deviates from the sinewave shape, it is said to contain "harmonics." Is that a good or bad sign? Apparently, harmonics is a bad sign because harmonic frequencies in the power grid cause power quality issues. Why do harmonics occur? Leading inverter battery manufacturers and suppliers from Nantech Power Systems Pvt Ltd, Chennai, point out two things:

Blame 1: Non-linear loads

Power distribution circuits use non-linear devices that create non-linear currents and cause voltage distortions. Some common examples are:

• LED and CFL lighting
• Switch Mode Power Supply (SMPS)
• Computers and PLCs
• UPS and SCR temperature controllers
• Battery chargers and rectifiers
• Frequency drives used with motors

"Harmonic current" is a term commonly used to describe these non-linear currents and voltages. A high load on the power distribution network leads to harmonic currents, which are multiples of the fundamental frequencies.

Blame 2: Electronic switching devices

The excessive use of electronic switching devices in modern equipment has significantly increased the harmonic pollution in the electrical distribution system. Some of the common examples are:

• Unreliable harmonic currents and voltages
• Malfunctioning of electronic equipment
• Neutral conductor and transformer overheating
• Overheating of the rotary machinery
• Capacitor failure

To rectify these power issues, we need one main aspect: Harmonic filters to harmonics coming from the power distribution network. These filters use "frequency conversion technology" to control harmonics and improve power quality in two ways:

• Autonomous detection
• Dynamic filtering of the harmonic currents

Why do We Need Active Harmonic Filters?

With the availability of passive filters, why do experts lean towards active harmonic filters to rectify harmonics in power generation? The reasons are obvious. These filters come equipped with an additional amplifier that changes their action and improves stability. An active filter also:

• Eliminates expensive inductors
• Has high and low input impedances
• Enables efficient interaction with before and after stages
• Remains unaffected by excessive loading
• Pinpoints the harmonic currents
• Establishes anti-currents to minimize harmonics to suitable degrees of intensity
• Enables parameter alterations using inexpensive variable resisters

However, these above-mentioned factors are just the tip of the iceberg. In our next section, we have explained more remarkable advantages in great detail.

Also Read: Why Choose Active Harmonic Filters Over Passive Harmonic Filters?

7 Advantages of Using Active Harmonic Filters

1. Prevent equipment failure and breakdowns.

When many small harmonic-producing devices are collectively causing large amounts of harmonic pollution, filtering the main power supply is a very useful solution. Active harmonic filters effectively prevent failures and breakdowns of devices since they help correct non-linear loads. The filters also provide energy efficiency, which helps extend the durability of the device.

2. Help in maximum use of installed capacity.

An ideal example of active harmonic filters maximizing installation capacity is their use in the AC lines parallel to the loads that produce offending harmonics. The active harmonic filters inject inverted current into the AC lines and cancel harmonics, improving electrical stability.

3. Improve energy efficiency.

One of the best aspects of active harmonic filters is that they are scalable and sized to the harmonic current for multiple loads. You can also install additional units if the total harmonic current exceeds the rating of the single harmonic filter. They also decrease the emission of carbon dioxide.

4. Reliable and provide continuity.

Active Harmonic Filters are handy for areas with significant non-linear loads and many DC drives because they reduce production disruptions. Therefore, these filters also extend the device's life, enabling them to perform consistently well.

5. Curb service and maintenance costs.
Any electrical device that operates at maximum efficiency is bound to work without issues. This theory is applicable for devices with active harmonic filters. Unless the capacitors and resistors are required, the active harmonic filter does not require custom fabrication because it is largely impedance-independent. According to the manufacturers, active harmonic filters can handle wideband harmonic frequencies to minimize service costs.

6. Prevent and reduce energy loss.

Harmonic pollution is synonymous with energy loss because it affects electrical installations' reliability, safety, and efficiency. An active harmonic filter installed on the main power supply can counteract all harmonic currents before reaching the transformer. They also reduce the absorption of reactive power and reduce wear and tear, thereby preventing energy loss.

7. Reduce fire risks.

Harmonic frequencies can increase heating in equipment and conductors. However, with active harmonic filters, you can:

• Choose the parameters
• Set the degree to eliminate pollution levels
• Make timing adjustments
• Monitor and change the settings if necessary

Active harmonic filters are a sure-fire way to reduce fire risks due to overheating.

The Disadvantages of Using Active Harmonic Filters

If you decide to use active harmonic filters, you should also know their shortcomings. Experts say these filters:

• Cause energy losses and VFD tripping due to series impedance
• Do not eliminate relay tripping, downstream failure, and downstream harmonics
• Are limited to upstream grid harmonics
• Malfunction when Total Voltage Harmonic Distortion (THDv) is high and used without a linear load mix
• Are susceptible to failure on voltage fluctuations

The Takeaway

The demand for active harmonic filters is at an all-time high, thanks to the widespread proliferation of non-linear loads. They have become almost indispensable for large power installations, with electric arc furnaces, induction equipment, and electric furnaces. Yes, the active harmonic filter is here to stay!

Want to know more about the active harmonic filter? Visit our webpage right now, or give us a call to know how you can use it to your advantage.

Solar Street Lights: At the Forefront of the Green Energy Revolution

The wind, water, and sun are the three big players of Green Energy. Of the three, solar energy has grabbed global attention as an effective solution to reduce energy consumption and environmental damage.

The global shift is driven by government initiatives and a massive adoption of solar lighting systems like solar street lights. Why solar street lights? The answer is obvious. The entire world is focussing on sustainable power sources to curtail greenhouse emissions. The relentless pursuit of green power drives the need and the market growth for solar street lights. Here's the proof: Global experts say that the market for solar street lighting will reach $14billion by 2027, with a post-Covid CAGR of 14.7%.

Why are solar street lights popular?

In India, solar street lights are a common sight. Thousands of them dot the highways that criss-cross the length and breadth of the country. As dawn turns to dusk, these solar street lights come alive and flood the highways with clean, sustainable power.

Standalone solar street lights are fast gaining power for some good reasons. They are:

• Cost-effective
• Low-maintenance
• Renewable energy
• Usable even in remote areas
• Wire and cable-free

How do they work?

Rather than relying upon on-grid power supply, solar street lights rely on batteries or photovoltaic cells for solar energy storage. This aspect makes solar street lights a feasible option to power highways and roads in remote places without any power grid source. These systems can also use the stored energy by converting it into electricity as per the requirement. For your solar street lights to function well, they must be exposed to direct sunlight, allowing them to soak up the solar energy for at least eight hours. Once charged, they are good to go for the rest of the night.

If you are looking to invest in solar street lights, it is undoubtedly a wise decision because these solar-powered solutions are fast gaining traction. The popularity of these street lights is driving the market and vice versa. The solar lighting market is flooded with dozens of options that could be overwhelming for inexperienced investors. If you are not well-informed, you may buy low-quality solar street lamps manufactured with sub-par materials.

However, our blog is packed with all the information you need to consider when investing in solar street lights. Let's read on.

11 Factors to Consider Before Buying Solar Street Lights

1.The light source

When make enquiries about solar street light dealers in Chennai for solar-powered lamp sources, they come up with several options like:

• Energy-saving lamps
• LED lamps
• Induction lamps
• Sodium lamps

Of these choices, the best option that's a close replica of the sun's spectrum is the LED light. Nowadays, smart solar-powered LED lights are powered by higher lumens that use less energy. Furthermore, LED lights make solar power integration simple and easy. So, they could be the better choice.

2.The type of battery

All solar lights are powered by batteries, which are available in two types:

• Lithium batteries
• Lead-acid batteries

Of the two, lithium batteries are better because they have:

• Longer lifespan
• Stronger resistance to temperature (upto 45 degrees Celsius)
• Various charge and discharge times ( up to three times more than that of lead batteries)
• Better battery capacity to provide the right lighting efficiency

It is important to note that the battery capacity should meet the lighting efficiency requirement. If not, the street lamp will not provide adequate lighting during the rainy season.

3.The temperature and latitude

When you are at a latitude greater than 15 degrees, the sun's inclination angle with the ground is greater than 15 degrees. Therefore, you must consider solar street lights with adjustable solar panels. Also, the panels of solar street lights installed on both sides of the road should not face away from the sun.

4.The heat dissipation performance

The heat dissipation is another important factor determining the LED lamp's quality. Basically, heat dissipation is nothing more than the transfer of heat. However, dissipation also refers to heat loss driven by undesirable effects. Therefore, every time the heat dissipation is inadequate, the lifespan of the semiconductor device in the street lamp is shortened. It is better to choose anti-ultraviolet and fireproof LED lights to ensure adequate heat dissipation.

5.The Illumination levels

When considering solar street lights, look for details about the footcandles as they determine the illumination on the floor. Ideally, the bright/dark ratio should be 4:1, but a minimum ratio of 3:1 is also good. You should also consider the colour temperature, measured in degrees Kelvin.

6.The temperature of the black lamp housing

It is better to opt for light coloured lamps since black coloured lamps are highly heat absorbing. If the lamp is black, the temperature of the metal shell can reach up to 90 degrees Celsius underexposure. The high temperature will destroy the battery and the LED light source. Therefore, choose a silver shell that will not absorb heat or fade when placed outdoors.

7.The controller

Charging and discharging controllers are also known as solar controllers, and they coordinate the work of solar panels, storage batteries, and loads. An effective heat dissipation function is crucial for selecting a controller. Another essential feature is temperature compensation. A smart controller has been added to prevent overcharging and undercharging of solar batteries. You would be better off investing in a smart solar controller with built-in communication that allows real-time monitoring and control of the system. The controller would offer maximum performance and longevity.

8. The sensors

The sensors are of two types:

• Microwave induction ( can sense moving objects)
• Infrared induction (detect only temperature-bearing organisms)

The PIR or the Passive Infrared Sensor is included in many solar street lights to help conserve energy. The sensors work by measuring infrared light allowing the sensor to detect movement.

9. The solar controller

The solar controller coordinates the work of the panels, loads, and batteries. Hence it is essential to pick a controller which gives you the following benefits:

• Good heat dissipation function
• Temperature compensation
• Prevention of overcharging and undercharging
• Built-in communication with interactive control
• Real-time system monitoring
• Maximum performance and longevity

10. The solar panel

The solar panel is the main component of the solar street lighting system. To determine the quality of the solar panels, you should:

• Check for even distribution of the silica gel around the back, backplane and frame.
• Examine the string welding for leakage regularity of the cell arrangement.
• Examine the pressure quality on the back and check for irregularities like bubbles and wrinkles.
• Check the battery panel's tempered glass surface for any foreign matter.
• Ensure that each battery cell is complete and created through integral cutting.

11. Service and warranty

Solar street lamps are certainly a big investment. Hence you need to ensure the manufacturer offers an extended warranty period of 20 to 25 years. Also, look for reputable solar street light dealers that offer good after-sales services.

Choosing Between Various Types of Solar Street Lights

• When choosing solar street lights, it is also advantageous to know the various models available on the market.
• Solar pole lights

In this model, the solar panels are attached to the poles. This panel positioning is slightly disadvantageous because the sunlight effect is minimal, and the absorption effect is only one-fifth of the ordinary solar lights. Moreover, the absorption rate is almost nil when the sun is directly above.

• Solar and wind energy hybrid street lights

The conversion equipment is different in this model because the conversion mechanisms are different. If wind energy is used to charge the battery, it will cause decay and affect the battery life. Hence, this model may not be the right choice if you are looking for solar lights that will last a long time.

Get the Nantech expertise and guidance on solar street lights.

Nantech Power Systems Pvt Ltd are one of the most recognized solar street light dealers in Chennai. We have years of experience dealing with off-grid and on-grid solar power plants and street light installations. Want to power up your locality? Call us today.