Challenges in Operations and Maintenance of a Solar Plant

From keeping plants running in optimum condition, manpower optimization, budget, and spare management for the smooth operation of a plant, to maintaining safety protocols, there are several challenges in solar operations and maintenance (O&M). In this blog, we will take a look at the multi-dimensional nature of these challenges.

The unexpected challenges of solar power | World Economic Forum

Preventive Maintenance

Preventive maintenance is a continuous process that aims at preventing sudden breakdowns and various costs accruing from it. It is carried out systematically, by following Standard Operating Procedures (SOP’s) and Standard Checklists, which help ensure consistency and quality of work. 

Condition Monitoring 

A significant change in the condition of the equipment is often clearly visible and can indicate the increased likelihood of breakdown at some point. It is important to repair or replace the equipment in time, especially if it is crucial to the working of the plant.

Corrective Maintenance

Despite all the efforts, some faults might arise in the system, which may need immediate corrective measures. This could include replacement of the faulty equipment or intervention by technical staff to restore its functioning.

O&M Budget

Cost control is an essential part of any solar O&M strategy and must be viewed in a comprehensive way. It is essential to reconcile the interests of the stakeholders with the objectives of controlling costs associated with system maintenance, quality checks, and testing procedures.

Documentation

A complete record of all activities taking place at a solar plant site must be well-documented and available for reference to all stakeholders, to ensure identification and removal of loopholes and procedural inconsistencies.

Spare Management

A formal inventory management system must be in place to keep a record of the type and quantity of spare parts available. These must be stored in an organised way to ensure ease of access during a breakdown.

Skills Training and Development

Working on-site can be full of challenges for which the personnel must be trained in order to increase their capacity across a range of tasks and reduce on-site accidents. This includes the development of technical skills and knowledge of standardized procedures and checklists.   

Plant Performance

To keep the plant at peak performance levels, it is essential to take a holistic view across human, technical and environmental dimensions of the plant. This includes functions like periodic module cleaning, vegetation control, spares management, manpower management, quality control, and Supervisory Control and Data Acquisition (SCADA) monitoring.

Safety

Safety measures while being on-site are essential for both personnel as well as the equipment. Proper safety procedures must be followed and protective gear must be used to prevent any kind of hazard. For assistance to decide on the solar panel that suits your needs the best, feel free to contact us on +919819907445. We would be happy to assist you in finding the best match based on your requirements. As one of India’s best solar companies, having 73 years of market experience, VEMC provides end-to-end solar services to its clients. VEMC is ISO 9001:2015 certified and is one of the leading solar EPC companies in India.

O&M Issues in PV Solar Energy

Solar PV Operations and Maintenance

Solar power systems have a life-span of 20-25 years which makes their Operations and Maintenance (O&M) very important. This is to maximise energy production and minimise maintenance costs over the lifetime of the system. Maintenance is a continuous process which not only reduces the risks and costs associated with sudden breakdowns, but also keeps the system at prime efficiency levels. Fortunately, solar systems have lower maintenance and servicing requirements as compared to other energy generating technologies. In this blog, we’ll take you through some of the common O&M issues of photovoltaic (PV) solar systems and the approach to deal with them.

Natural Degradation

All solar cells degrade naturally, regardless of the environment they are installed in. However, the rate of degradation depends on the material of the PV panels. For instance, monocrystalline silicon panels have the lowest rate of degradation while copper indium gallium diselenide (CIGS) panels have one of the highest. Since the material directly affects the cost of the panels, choosing the type of panels is essentially a planning, budgeting and investment decision.

Lightning Protection

Lightning strikes can damage the solar power system by causing a power surge within the array. It is important to have a grounding system in place to redirect the energy from the lightning, away from the panels and into the ground. While the mounting system of the panels itself plays the role of grounding it, the material of the mounting system must be chosen carefully. This also depends on the type of foundation of the system. Besides having a robust grounding system in place, it is advisable to install surge protection equipment for backup safety.

Failure of Components

Cracking of panels and their visual discolouration can affect the efficiency of the panels. Both of these are irreversible damages. High temperatures can damage the solar panels by producing hotspots on them. Inverter downtime is another common issue with PV solar systems and their scheduled maintenance is a critical part of a solar O&M strategy. For static solar panels, ideal panel orientation is necessary to get the highest output. In case of tracking systems, it is important to regularly check the moving parts like gearboxes, motors, and actuators.

Weather Conditions

The environment impacts the durability of PV systems and adequate measures must be taken to offset its effect. For instance, regular cleaning and wiping may be required in windy or arid areas while sloping solar panels can avoid an accumulation of snow in cold regions. In the case of hailstorms, protective covers could be useful to prevent damage to the panels.

That said, it’s absolutely necessary to have an O&M plan in place for your solar plant to alleviate long-term costs. At VEMCO Solar, our valued clients are provided with customized plans to fit all their needs. VEMCO Solar (Check out our story) offers end-to-end solutions and has empanelled channel partners with the Ministry of New and Renewable Energy, Government of India, for solar PV rooftop, small power plant system integrators, and installation. Guided by the knowledge gained by VEMC over 72 years, our aim is to be by your side at every step of the way. VEMC is ISO 9001:2015 certified and a pioneer in the field of electromechanical engineering products, allied equipment, and services. Please feel free to contact us on +91 98199 07445.

How Solar Operation and Maintenance Can Optimize Your System Performance

As solar plants get older, they need operation and maintenance to maximize output. It not only enhances the lifespan of the solar plant but also deals with failures and defects. Solar system owners are increasingly concerned about the longevity of their systems and are paying attention to the critical role of operation and maintenance. The frequency and degree of maintenance of solar systems depend upon the installation type, system configuration and location of the setup. 

Here’s how solar operation and maintenance services can increase the performance of your solar power system.

  1. Performance monitoring: It is important that your solar power system works at its peak efficiency and maintains high output levels at all times. To gauge the performance of the system, continuous real-time monitoring is needed. The foremost task involves establishing a performance baseline against which various parameters are continuously compared, followed by steps to mitigate deviations. This helps to keep any shortfall in performance under check and subsequently plan the necessary corrective action.
  1. Preventive maintenance:  To avoid direct and indirect costs related to sudden system breakdown, a timely inspection of components and devices is necessary. Cables, inverter, combiner boxes, photovoltaic panels and remote monitoring devices must be in good working condition. Preventive maintenance includes, but is not limited to, adjustments, cleaning, lubrication, repairs and replacements. Timely preventive checks and actions help the system maintain top levels of performance and also anticipate any possibility of a breakdown.
  1. Corrective maintenance: Despite all the efforts at performance monitoring and preventive maintenance, a system breakdown could be encountered. For situations like these, a comprehensive plan of action has to be ready. Corrective maintenance involves activities performed in order to restore a PV plant system, equipment or component to its original working condition. These include reporting, diagnosing, troubleshooting and providing repair or replacement to restore the system to fully operational status. In some cases, involving a Defect Liability Period (DLP), backup parts may be needed to keep the system running while the equipment is sent back to the vendor for a warranty claim. Although a certain amount of corrective maintenance will be required at some point during the long lifespan of a solar power system, it can be lessened through proactive preventive maintenance and performance monitoring, thus calling for a holistic approach towards operation and maintenance.

The long lifespan of photovoltaic systems necessitates the management of maintenance and breakdown costs over a long time horizon. While the installers usually brief the customers on details of maintenance checks to be carried out at regular intervals, the safest and most effective maintenance service can be provided by solar professionals conversant with system components and their safety procedures.

For further information on any aspect of solar energy, feel free to contact us on +91 98199 07445. We would be happy to assist you in finding the best match based on your requirements. With 72 years of market experience, VEMC provides end-to-end EPC services to its clients. VEMC is ISO 9001:2015 certified and a pioneer in the field of electromechanical engineering products, allied equipment, and services. 

Different Types of Ground-Mount Solar Racking Systems

Traditional ground-mounted solar systems are set up by anchoring panels in the ground. These panels hold a large number of stacked panels. But as there are different types of foundations, anchoring to the ground is the most challenging part of these installations. 

In case of clear soil with no debris, steel beams are simply driven into the soil and the racking system is attached to these beams. However, in situations where the soil is not visible and the ground is littered with boulders, anchor systems may be used, in which, helical piles and ground screws are driven into the debris.

Let’s take a look at the different types of ground-mounted solar systems. 

Regular Ground-Mount System: This is a conventional setup in which the photovoltaic panels are held in place by racks or frames that are attached to ground-based mounting support. The mounting support may comprise of pole-mounts that are driven into the ground or embedded in concrete. Alternatively, foundation mounts such as concrete slabs or poured footings may be used.

Capped Landfill: This is an innovation in the solar sector wherein the ground-mounted systems are not fitted into the landfill grounds but are instead ballasted on it, just like they are on flat roofs. This is probably the best utilization of the surface of these otherwise abandoned landfills and brownfields. This kind of setup uses concrete and cast-in blocks to hold the system in place.

Tracking systems: To enhance energy output, tracking systems may be used. These are motorized ground-mounts that track the sun throughout the day exposing the panels to sunlight at all times. Single-axis tracking systems span the panels on long rows and only move them from east to west. Dual-axis tracking systems separate out tables of panels and follow the sun on a circular path. The latter ensures higher energy output. Trackers may be centralized, which have a single motor to move many rows of panels; or distributed, which have multiple motors to move the rows.

Carports and canopies: These are tall ground-mounts, erected mostly in parking lots of schools, universities and large business establishments. Interestingly, these can also be equipped with electric vehicle charging stations to plug in the vehicles parked underneath them.

Floating solar systems: Although not mounted to the ground, floating systems function exactly like panels positioned on a flat roof. These could be assembled on land and can float on water, with the addition of more panels. These are secured to shore mounts or floating anchors. Floating systems can help land and real estate, and are becoming increasingly popular in Asia and parts of Europe.
For more information on various types of solar racking systems, feel free to contact us on +91 98199 07445. We would we happy to assist you in finding the best match, based on your requirements. With 72 years of market experience, VEMC provides end-to-end EPC services to its clients. VEMC is ISO 9001:2015 certified and a pioneer in the field of electromechanical engineering products, allied equipment, and services. Our sub-brand VEMCO Solar is a market leader in solar solutions — be it solar plant erection, procurement, commissioning, net metering, or electrical connections. At VEMCO Solar, our valued clients are provided with customized plans to fit all their needs.

Our Solar Story: Installation of 360 kW Plant at MCGM Engineering Hub, Worli

Mumbai, the city that never sleeps, is a bustling metropolis. The Municipal Corporation of Greater Mumbai (MCGM) is responsible for the smooth running of key aspects of the city’s infrastructure like sewage lines, water supply system, roads, and garbage collection system. All this planning and execution is done at the MCGM Engineering Hub, Worli, which is home to chief engineers and senior executives of MCGM.

Challenge

Providing maximum working comfort to the staff who ensure such high levels of productivity on a regular basis is the top priority for the state-of-the-art facility. Ergo, it’s no surprise that electricity consumption at the building would run up to 2-3 lakh units every monthly, on average. This put a huge financial liability on the building maintenance department and added to MCGM’s overall carbon footprint.

Our Solution

VEMC’s undertaking of this massive project included the construction of a renewable energy system to produce onsite electricity. The idea was to set up a 360 kW solar plant and include a solar net metering connection with the support of BEST Undertaking. Prior to execution, VEMC created a detailed pre-feasibility study to ensure the viability of installing a rooftop solar project for a 25-year operational period. Everything from civil and structural stability to financial savings were explored in the study. Finally, detailed electrical single line diagrams (SLDs), shadow analysis reports, and structural design layouts for the solar modules were presented to the MCGM before proceeding to execution.

Execution

  1. Durability: To ensure a sturdy build, aluminium solar module mounting structures with 3-5 mm thick sections and 12-15 micron anodising, were crafted. Their durable and corrosion-resistant nature was perfect for the planned 25 years of the project. The plant was also designed to withstand wind speeds of up to 150 kmph and it has already been tested against two cyclones, with the speed of approximately 114 kmph, indicating that our design was accurate.
  2. Solar modules: With high efficiency and cost savings being major considerations, polycrystalline cells were chosen for the solar modules. As many as 1,075 modules were procured from reputed Indian manufacturers.
  3. Cables: On the direct current (DC) side, tinned copper cables were used for their resistance to UV and direct sunlight exposure. And for the alternating current (AC) side, armoured type cables were used to provide sufficient mechanical protection when hung or routed through their pathways. Module interconnection cables housed inside cable trays were installed on the roof with optimum clearance from the rooftop to avoid corrosion.
  4. Earthing: While early streamer emission (ESE) lightning arrestors were used, 10-feet deep chemical earthing pits were created for any possible current leakage in the system. This earthing system is completely maintenance-free and has a minimum lifetime of 10-15 years.
  5. Inverters: High-quality inverters from top brands were procured. Not only did they offer 5-year warranties, but they were also tested for IP65 protection and outdoor duty operation in the sun. All the inverters used abide by the International Electrotechnical Commission (IEC) standards required by the Ministry of New and Renewable Energy (MNRE), Government of India, and have surge protection devices (SPDs) and built-in fuse boxes.
  6. Control panel: All the low tension alternating current distribution board (LT ACDB) panels provided were Central Power Research Institute (CPRI) approved, and had copper busbars, appropriate switch gears, quality enclosures, and detailed designs. This meant ample protection for the solar plant and other equipment on the site. Moreover, the LT panels used had in-built multi-function meters to record data like energy generated, current, and voltage.

Impact

The benefits include:

  • An estimated generation capacity of 4.87 lakh units or 500400 kWh annually.
  • An estimated reduction in CO2 emissions by 412 metric tonnes annually and 8250 tonnes over the entire lifespan of its operation. 
  • A 500.4 ton reduction in the building’s carbon footprint.

VEMC, a 72-years young organisation, is a pioneer in the field of electromechanical engineering products, allied equipment’s, and services. Leveraging the decades of experience, VEMCO Solar (Check out our solar story), was able to successfully execute the MCGM project and deliver results. VEMCO Solar is a market leader in solar solutions — be it solar plant erection, procurement, commissioning, net metering, or electrical connections. If you have any requirement, please feel free to contact us on +91 98199 07445. We would be glad to assist you.

7 Things to keep in mind for the smooth operation of your solar power system

Effective operation and maintenance (O&M) of your solar power system is important to ensure peak efficiency and improve the longevity of the system. Here are 7 things to keep in mind for the smooth operation of your system:

  1. General checks: These have to do with the overall physical protection of the system and include the following checks:
  • There is adequate drainage and no roof clogging or water pooling
  • There is no ground erosion at the base of the ground mount system
  • No corrosion in the racking system
  • Electrical enclosures are accessible to authorized personnel only
  • No loose hanging wires in the array
  • There are no signs of animal infestation (especially mice) near the system
  • There is no debris in the inverter pad area or elsewhere

           Specific checks comprise the component-wise measures that are essential for preventive maintenance.

  1. Modules: Cleaning of modules must be done fortnightly. The water used for cleaning must have TDS (Total Dissolved Solids) below the level of 250 parts per million (ppm). Hard brushes may damage the glass surface of the modules and must be avoided. After washing, the modules must be wiped dry to ensure no stains remain, as these could affect the energy efficiency of the solar power system.
  2. Inverter: Keeping in mind the dusty Indian conditions, monthly rather than quarterly servicing is recommended. Use of high-quality filters for ventilation can be very beneficial. It is also important to track and prevent sharp voltage fluctuations.
  3. Cabling connector: There must be no gap between the male and female connector pipes as this could result in an accidental fire, causing damage to the modules.
  4. Transformer: Parameters like Operating Temperature, Oil Temperature and Winding Temperature must be monitored regularly. The transformer must also be cleaned once every six months.
  5. Protection from external elements: It is important to prevent the entry of rats and other rodents which can get electrocuted, causing a short circuit. Besides, high-pressure water can damage the modules. The system must therefore be completely sealed to prevent incidents like these.
  6. Remote monitoring: This is a new development in preventive maintenance in which data from components like inverter, probes and meters can be remotely received and monitored on a continuous basis.

At VEMC, we work to maintain solar plant infrastructure and equipment, to improve the longevity of equipment by preventing excess depreciation and impairment. This enables the solar power plant to produce the maximum amount of energy throughout its operational life, and perfectly align the interests of developers, clients, and investors.

 For further information on any aspect of solar energy, feel free to contact us on +91 98199 07445. Check out our solar story here. We would be happy to assist you in finding the best match based on your requirements. With 72 years of market experience, VEMC provides end-to-end EPC services to its clients. VEMC is ISO 9001:2015 certified and a pioneer in the field of electromechanical engineering products, allied equipment, and services. 

Banishing The General Myths About Solar Power

If you are looking for ways in which you can be ‘energy smart’ with renewable energy sources that could lessen the effects of global warming on our environment, opt for solar energy. It is a truly sustainable source and has gained popularity across the globe. While solar panels are becoming a popular choice for many, some are still sceptical about it. We are here to help you find out the truth behind some of the common myths.

Solar energy is too expensive

Over the last 10 years, investment in solar energy has been increasing, and the price of solar electricity has dropped by 89%. In India for example, in July 2020, solar power tariff was INR 2.36 per unit, in an auction of 2 GW capacities by the Solar Energy Corporation of India. Significant technological advancements and increased adoption of solar energy has, over time, made production more efficient, reliable, and scalable. That has eventually made it cheaper than energy produced from coal. 

Solar panel installation is too complex and demands a lot of maintenance

The installation of solar panels is as simple as installing any other household appliance, and can be completed in a week by a reliable manufacturer. The panels would need a periodic light cleaning to get rid of the debris, leaves or dust that might obstruct the sun’s rays. A battery-based system might need more cleaning and are relatively more expensive than a system without batteries. 

Solar panels do not work in all weather conditions

It’s a very common misconception that solar panels produce little or no energy during winter. Solar panels can withstand harsh weather conditions and are, in fact, extremely efficient in colder temperatures. For solar panels to generate electricity, you only need one thing — sunshine. Solar energy systems and solar panels are not powered by heat but light. So, regardless of the temperature, solar panels will continue to produce energy as long as they receive sunlight. However, the output will be slightly lower during winter than summer. 

Do the prices of solar panels depend on the size of your home?

The installation of a home solar plant will depend largely on the energy consumption pattern of the household rather than the size of a house. Accordingly, the number of solar panels required will have to be calculated. Based on the number of panels, space availability, and your choice between off-grid and grid-connected power plants, the price will be ascertained.

If we can use clean coal, why invest in solar energy?

Solar power is one of the cleanest forms of renewable energy. Unlike fossil fuels, generating electricity from the sun’s rays does not harm the environment. No harmful substances are released and there are no carbon emissions or pollutants. On the other hand, there is no such thing as ‘clean coal’, and both coal mining and coal-fired power plants affect the environment adversely. 

Hope we managed to debunk some of the common myths about solar energy. It’s time to choose clean and sustainable forms of energy and solar is one of the best options

Do you have other questions around solar energy? Feel free to contact us on +91 98199 07445. With 72 years of market experience, VEMC provides end-to-end EPC services to its clients. VEMC is ISO 9001:2015 certified and a pioneer in the field of electromechanical engineering products, allied equipment, and services. Our sub-brand VEMCO Solar is a market leader in solar solutions — be it solar plant erection, procurement, commissioning, net metering, or electrical connections. We would be glad to include you in our family. 

Future Of Solar Energy Looks Brighter Than Sunshine

Solar energy is clean, renewable, and can provide for a significant proportion of our energy requirements with the help of the latest technologies. According to International Energy Agency, it is, in fact, the cheapest form of electricity in history!

What’s the current state of solar?

According to Ministry of New and Renewable Energy, Government of India, India has achieved 5th position globally, in solar power deployment, and the solar tariff in India is very competitive and has achieved grid parity. The country’s solar power capacity has increased by more than 11 times in the last five years, from 2.6 GW in March 2014 to 30 GW in July 2019. 

If we succeed in improving production further, the energy systems like solar farms and CSP (concentrating solar power) plants would not only be considered as valuable energy resources, but also help create more energy than fossil fuels. It will also help reduce carbon emissions significantly.

Solar energy storage

The success of future energy systems depends on solar energy storage as it can store excess solar power onsite, which can be utilised later, when the sun isn’t shining. However, these systems have expensive lithium-ion batteries, which makes them heavy on the pocket. So, if the cost can be brought down and efficiency can be increased, the installation of these battery storages will become more commonplace in the future.

Floating solar farms

India is about to start work on the world’s largest floating solar energy project at Omkareshwar dam on the Narmada river. The project is expected to produce 600 MW solar energy starting 2022-23. A 100 MW floating plant is expected to become operational in Telengana soon. Spread over 450 acres, the project will have 4.5 lakh photovoltaic panels, and will be scalable in the future. 

Floating solar farms can help preserve land for agricultural and terrestrial ecosystems. It will also help countries that lack adequate land build utility-scale solar farms.

The future of solar panels: The Tesla Solar Roof

Going solar can reduce your electricity bill considerably. While rooftop solar installations are extremely beneficial, many may not like the way in which it changes the look of their homes. To solve this issue, companies like Tesla, are working on making the future solar panels more aesthetically pleasing, so that it could blend in with its surroundings.

Landowners and developers

Increased demand for solar energy can be a great opportunity for land owners, who can lease out their land for solar projects, in exchange for money. This would be a win-win situation for both property owners and solar project developers.

Solar energy is one of the most inexpensive and sustainable forms of power on the planet. With advancements in technology and encouraging government policies, we are all hopeful about a brighter future for the solar industry. That would also mean lesser pollution, reduced use of fossil fuels, lesser carbon emission, and a cleaner future for all of us. If you are keen on leveraging the advantages of solar energy, just contact us on +91 98199 07445. VEMCO Solar (Check out our solar story) offers end-to-end solutions and has empanelled channel partners with the Ministry of New and Renewable Energy, Government of India, for solar PV rooftop, small power plant system integrators and installation. Guided by the knowledge gained by VEMC over 72 years, our aim is to be by your side at every step of the way. VEMC is ISO 9001:2015 certified and a pioneer in the field of electromechanical engineering products, allied equipment, and services. Depending on your requirement, we provide off-grid, on-grid and hybrid solar system solutions as well.

Solar Net Metering VS Gross Metering

It’s 2021 and generating electricity has become easier than ever, with solar energy. While solar power is economical, storing electricity is quite expensive. Therefore, solar panel systems are often connected to the electric grid. So, if you are an on-grid solar consumer, whose rooftop systems are connected to the grid, then there are two ways of metering defined by the government – Net Metering and Gross Metering.

Net Metering

This is an arrangement where the exported solar power is adjusted against the imported energy in the electricity bill. Basically, if the electricity consumed by the user is more than the amount of electricity produced, then it is imported from the grid. On the other hand, if the amount of solar power generated is more than what is consumed by the owner, then they get compensated for the excess amount. For instance, if you use 10 units a day while the electricity generated by your rooftop system is only 6 units, then it will reflect that 4 units have been imported from the grid. Meanwhile, if you use only six units and produce 10 units a day, you will be compensated for the excess power, depending on the rate that is fixed by the state’s electricity regulatory commission. This arrangement can be done on a monthly, half-yearly or annual basis.

Gross Metering

In gross metering, a consumer won’t be able to directly use the electricity that is generated by their rooftop system. This is because the solar power generated is directly fed to the supply grid through a different circuit and the energy required for consumption is imported from the grid. Now that there are two circuits, you will have two meters – one that records the consumption of electricity and the other for production. So, your bill for the amount of electricity you consume will continue to be the same. But, you will be compensated for the total number of units of solar energy produced and fed into the supply grid at a fixed feed-in-tariff (FiT) — the payment for electricity exported to the grid from a renewable energy source.

Gross Metering or Net Metering?

When it comes to financial benefits and high energy requirements, gross metering seems more beneficial than net metering because the return on investment (ROI) from gross metering is fixed and so is the amount of solar power produced and exported. The ROI from net metering arrangement depends on the amount of solar energy you save. If you’re looking at installing a system sometime soon, you might not want to opt for gross metering given its present tariff rates, which are quite high. 

If you’re looking at long term benefits, it is advisable to choose net metering. With gross metering, you’ll be billed twice — once for your cumulative electricity consumption and then for the solar power your system generated and fed into the supply grid. In net metering, only one bill is generated and it gives you a measure of the total consumption of electricity as well as energy production.

However, it is recommended to get a cost comparison done from a professional before you make a purchase. At VEMCO Solar (Check out our solar story), we offer end-to-end EPC services to our valued clients. We have empanelled channel partners with the Ministry of New and Renewable Energy, Government of India, for solar PV rooftop, small power plant system integrators and installation. Guided by the knowledge gained by our parent brand VEMC over 72 years, our aim is to be by your side at every step of the way. VEMC is ISO 9001:2015 certified and a pioneer in the field of electromechanical engineering products, allied equipment, and services. Depending on requirement and feasibility, we offer off-grid, on-grid and hybrid solar system solutions as well. Please feel free to contact us on +91 98199 07445.