The Solar Squad app provides solar plant services at your doorstep. One app for all your solar needs. Sounds good, right?

• Our company’s advanced solar energy services in Chennai are among the best in the industry.
• In this app, users can get maintenance and repairs for their existing solar panels in their home, commercial or industrial space.
• The Chennai-based Solar Squad has more than 10 years of experience in installing solar panels of all sizes and types.

The features you’ll find in our app:

• Using Solar Squad,  you will be able to solve your pain points regarding all your solar service needs.
• Solar Installation, Services, and Repairs at the Customer’s Doorstep.
• This app can be used to monitor, service or repair all your installed Solar PV systems.
• Help users quickly rectify any problems in solar panels, and avoid future encounter with their installed Solar PV systems.

And the best part?

• In most cases, major maintenance issues can be resolved within 2 to 3 working days depending on the size of the solar plant.
• The new mobile app makes solar maintenance accessible to customers at the click of a button.
• A fee of Rs.1000/- will be charged for a service assessment on-site anywhere in Chennai.
• Solar Squad has the capabilities as well as experience in all aspects of solar plant services.

An all-in-one app:

• It is very easy to use.
• Simple and user-friendly interface.
• Installation and Services.
• No lags or bugs.
• Great customer support.
• Provide services that are cost-efficient

Challenges in Solar Industry

The current scenario in the solar industry has seen several companies close, go bankrupt, become insolvent or cease to operate due to a lack of workmanship, with stiff competition among an ever-growing number of companies, doesn’t it?

What happens when your solar company disappears?

• It is not uncommon for customers to complain about unresponsive customer service, poor workmanship, and low-cost equipment developing problems over time, leaving them stuck with expensive panels that don’t work.
• It may result in multiple requests by customers for services, repairs, and replacements.
• And the best part? Solar squad is designed to meet the needs of customers solar service or repairs. Well, you can hire top solar experts in your city today.

How it works:

One of the biggest hurdles customers face after installing solar panels is service. However, this hurdle seems to be resolved with Solar Squad as well.

The Solar Squad is committed to driving Chennai’s transition to clean, renewable energy through the installation, repair and maintenance of solar panels.

How can our app help you?

• For customers in need of solar service or repairs.
• The top solar experts in your city are at your doorstep.
• A hassle-free service.
• You can book any service: Installation, Cleaning, Maintenance.
• Trained service partners and skilled technicians for installation, operation and maintenance.
• On our personalized map, you can find information about our loyal clients, including their plant size, location, service information, installation date, the amount of electricity generated, and many more.
• Solar Squad has controls and guidelines in place to assure quality service to its users.
• Being well-versed in all facets of PV plant operations and solar power servicing.
• Based on the size of the solar plant it will take 2 to 3 working days to resolve any major maintenance issues.
• Experts have a long history of operating and servicing solar plants.

Call us Tel: 9952054308

chat with us: Email us: ram@solstrom.in

In the day-to-day management and upkeep of solar power plants, drones have quickly become an indispensable tool. Drones, thermal imaging, and software are used to detect and report module irregularities.

Solar panels can have faults that are easily rectifiable if discovered early. We think it’s important to understand the benefits and drawbacks of each thermographic inspection technique so you can select the best option for your solar PV portfolio.

To get you started, we’ve gone over the basics of aerial thermography and the rewards of regular thermographic inspections.

What Drone Thermography Is and How It Works

• Drones are currently a common tool for thermographic solar plant inspections for many solar PV companies.
• Drone thermography gives a low-cost, highly accurate, and 100% complete view of a solar power plant, down to a molecular level.
• This means that manual string measurements and random ground-based thermography are no longer needed to check the electrical integrity of the solar plant.
• Drones can inspect large PV systems more quickly and give important information using high-resolution thermal technology that can spot changes in heat.
• Drone thermography is useful throughout the lifetime of a solar power plant.

Drones Reduce Inspection Time

Reduced inspection time is the main reason organizations use drones for solar checks. Thermal inspections can be completed by drones in 10 minutes per MW, whereas manual procedures such as I-V curve tracing need two to five hours / MW.

Drones can undertake solar inspections at 15 mph, far faster than humans. An experienced drone pilot understands how to picture the PV system from above at the proper shooting angle, time intervals, and speed.

Construction

Drone thermography can identify quality, construction, and commissioning issues at an early stage, avoiding early yield and revenue loss.

Pre-commissioning and commissioning

Drone thermography performed at provisional acceptance certification (PAC) gives a complete plan for the engineering, procurement, and construction company (EPC) to address any concerns found as well as a primary prevention standard for all of the modules.

Prior to intermediate (IAC) or final acceptance, a second thermographic check must be performed (FAC).

Operational solar plant

Drone thermography should be performed yearly during long-term operation so that you have a timeline to refer to over the course of the solar plant’s life and can discover performance trends.

Regular thermographic inspections detect problems that may be the cause of a poorly performing solar plant and focus engineering resources on fixing them.

Drones Can Inspect Every Panel

It can be overwhelming to evaluate every module quickly and affordably due to the magnitude of solar farms and business rooftop PV systems. Drones offer an alternative that enables solar energy providers to acquire detailed information about their entire Solar panel, even down to the cell level.

Using drone-collected thermographic data for preventative maintenance

Drone thermography enables the move from a reactive maintenance plan to a preventative maintenance strategy. There are important points to think about that influence the quality of the data collected and the way in which it is transformed into legitimate information for your team.

There are two main methods of thermographic and visual data collection.  One is the ‘Orthomosaic Method’ and the other ‘Radiometric Video Method’.

Drones Reduce Costs of Solar Inspections

Many solar firms put off PV system inspections due to expenses. Manual inspections take a lot of time, and the cost of all those man hours adds up.

Additionally, manual checks necessitate a temporary shutdown of the PV system, which results in additional income losses and much lower energy production from undetected defective equipment.

Moreover, there is no need to shut off the power generation because a drone may investigate the location while it is still connected to the grid.

Warranty Claims

If a piece of solar equipment isn’t functioning up to standard, you may need to make a warranty claim. Drones can provide you with the granular level of detail necessary to validate your claim with the warranty company.

With a drone solar inspection, you’re getting more accurate, time-effective, and low-cost information, so you can make sure your panels remain operating at their highest potential.

• Call us Tel: 9952054308
• chat with us:
• Email us: ram@solstrom.in

The connection between the voltage across an electrical device and the current through it can be graphically represented by an I-V curve. IV testing that evaluates the rates of string and module deterioration.

I-V curve tracers are specialized test tools that sweep an electrical load attached to a solar PV module or string while continuously measuring both the current and voltage.

Why is I-V curve tracing important?

It is simple and safe to conduct Isc measurements with I-V curve tracers, and they can show what occurs to an array under load.

I-V curve tracing is a fast and efficient method for assessing the actual performance of Solar PV modules and conventional string inverter systems.

Solar PV installers use this technology specifically for monitoring and assessing the performance of modules in real time.

How does it work?

I-V Curve Tracing is a technique for electrically testing a PV module and photovoltaic array to make sure they are operating at their peak efficiency.

• To ensure productivity, this test can be carried out at any point during the manufacturing, installation, commissioning, performance, and troubleshooting phases.
• This can be accomplished by installing a device known as the I-V Curve Tracer, which measures current and power as a function of voltage.
• Individual strings can be subjected to this test, and the results obtained can be compared to what is anticipated for any modification.
• I-V Curve tracing helps in determining the optimum combination of current and voltage to maximize yield as illustrated.
• The red line depicts maximum output achieved through the best combination of current and voltage whereas the dotted line shows reduced output which may be a result of several factors such as a module mismatch, soiling, and more.

What are the benefits of i-v curve tracing?

Using I-V curve tracing, you can find module flaws such shading, soiling, series resistance, and module mismatch. Immediate detection of these faults allows specialists to perform array layout tweaks, repairs, and warranty claims.

Currently, I-V Curve Tracing is one of the most thorough techniques for evaluating PV modules and strings to control and enhance the performance of each array in the PV system.

Some key benefits of I-V Curve Tracing include:

• Lower risks during start up and commissioning
• Thorough system performance baselines
• Effective and expedited troubleshooting
• Better performance modeling
• Detailed testing reports and analytics
• Reduced system downtime

Test duration reduced:

I-V curve tracing evaluates the performance of an array using a single electrical connection on every combiner box and a single measurement per string. The entire procedure takes only around 15 seconds per string, and data is stored electronically.

No need to turn on inverter to test PV strings:

I-V curve tracing reduces this need by evaluating the performance of each PV string under all load conditions. This allows you to conduct your start-up testing early in the project, prior to bringing the inverter online.

Baseline performance:

PV arrays are exceedingly durable and dependable; however, their performance degrades over time. Module failures do occur occasionally. I-V curve tracing provides a thorough baseline for comparing data made throughout the course of the PV system’s lifetime.

Module degradation and failures are easily measurable and documentable, which facilitates warranty claims.

• Call us Tel: 9952054308
• chat with us:
• Email us: ram@solstrom.in

Introduction  

Rooftop solar PV has been gaining popularity in India recently. The ministry of new and renewable energy has actively been promoting the same with subsidies and easy loans. In addition, various states have also brought out various policies to this effect. Tamil Nādu for example provides a subsidy of Rs. 20000 per kW of grid connected rooftop solar PV in addition to central subsidies. These systems typically range  from 2 kW to 5kW for the individual houses.  On grid inverters are directly connected to the grid and feed the power generated from rooftop PV to the grid. Inverters are typically chosen based on their capacity, size, peak efficiency, and of course cost. This blog discusses the top 10 solar inverters for rooftop PV application in Chennai.  

Top Solar Inverters  

• Growatt

Growatt has presence in more than 150 countries and have distributors in Chennai. They have a range of on-grid DC to AC solar inverters for single phase and three phase connections in the 2 to 5 kW range, with up to a maximum of two MPPTs. They support up to a maximum DC input voltage of 550V and a current of 13.5 A with operating efficiency around 98%. The dimensions of the models are around 375x350x160mm with a weight of 10.8 kg. They also come with features like OLED display and touch key function for easy control. A standard 5-year warranty with an optional 10-year addon is available.

• Deye

Deye is another international brand founded in 2007. They have on-grid solar inverter models available for residential applications in Chennai. The models in 2- 5kW ranges have maximum input capacities of 550V and 13 A per phase. With an overall operating efficiency of around 97%, they are also compact, with a maximum dimension of 330x323x190mm and a weight of 7.5 kg for single phase. Three phase models are available above 3kW. A standard 5-year warranty is offered.

• Luminous

Luminous is a well-known brand in India. They have a series of Grid Tie Inverter series for solar applications. For residential consumers, they have inverters ranging from 1kW to 8kW. They have listed models with 2 and 4 MTTPs. Input voltages can be up to 1000V in quad MTTP models and claimed efficiencies in the range of 97%. Dimensions vary with capacity, average sizes and weight are 310x373x160mm and 7.4 kg for a 2kW model for reference. A standard warranty of 5-years is offered. 

• Sofar

Sofar Solar, another player, has been in India since 2018. For residential applications, they have models with both one or two MPPTs with 360V and 600V maximum input voltages respectively. The maximum current is 12.5A. Three phase models are also available. Maximum rated efficiencies are around 98%. Physical dimensions go up to 345x341x167mm and 10kg for single phase 5kW systems. They offer a standard 5-year warranty with options for extension up to 7 or 10 years.

• SMA India

SMA is a German company with 40 plus years’ experience and global presence. They have their Sunny Boy (single phase) and Sunny Tripower (3 phase) series of string inverters available for residential customers with powers ranging from 1kW to 6kW. They also have proprietary software solutions like SMA Smart Connected, SMA Shade Fix etc. and integrated online communication portals for monitoring. Maximum rated input voltages and currents are in the range of 600V and 15A. Dimensions go up to are 435x470x176mm and weights up to 17kg. They offer a standard 5-year + additional 5-year conditional warranty based on models.

• SunGrow

Sun grow as a company that has a 25-year of experience in solar products. They offer single and multi MTTP systems. Power ratings up to 9kW are available for residential applications. Higher power models are available in 3 phase configurations also. Maximum input voltage is 600V. Currents ratings are 16A per input. The systems have average efficiencies around 98%. Dimensions are around 410x270x150mm and 10kg for a 5kW system. They offer a standard warranty of 5-years.

• Solar Edge

Solar Edge is headquartered at Israel was established in 2006. The company has a range of string inverters. They have single phase solar inverters for residential applications from 2 to 6 kW and three phase inverters from 3kW and above. The peak input voltage can be as high as 900V, providing output around 200V (single phase) or 400 V (3 phase) ac at 50-60Hz with a peak efficiency over 97%. With dimensions of 540*3158191 mm and weighing around 16kg, these systems provide 12–25-year warranty options, making them extremely attractive for reliable operations.

• Enphase

Unlike most of the inverters discussed so far, Enphase specialises in micro inverters of around 250W peak output. However, multiple inverters can be utilised if larger power output is required. Maximum input volage is a low 48V when compared to its larger counterparts, and output is single phase 240V AC. Peak inverted efficiency is 97.6%. Enphase claims that modular systems employing multiple microinverters minimise safety hazards due to lower voltages and isolate faults to single units instead of affecting the entire panel configuration. The system also provides data to the user through an android app, allowing for intelligent energy utilization.

• Fimer (ABB is fimer now)

Fimer, which recently acquired Abbs’s inverter manufacturing, is a major player in the solar inverter space. The company supplies both single and three phase. These smart inverters typically range from 1.2 to 6 kW and can transfer data to user via ethernet of WLAN. Typical input voltages are in the range of 120-200 V Dc with peak efficiencies over 96%. These weigh around 15 kg and dimensions are 55.3*41.8*17.5 cm.

•  Fronuis

Fronuis makes solar inverters with capacity ranging from 1.5kW to 100kW, ensuring that every consumer gets the right capacity inverted. Typically, the ingle phase inverters have an input voltage of 80-1000V, and the output voltage can range between 180-270V at 50-60Hz. With dimensions of the order of 43*65*20cm and weighting around 20kg, these inline inverters are ideal for indoor and outdoor applications, though the warranty is only 2 years with an option of extending to 5 years.