Question 1

How do solar panels work?

Accepted Answer

Solar panels convert sunlight into electricity using photovoltaic (PV) cells. When sunlight hits the panels, it creates an electric field that generates direct current (DC) electricity. An inverter then converts this DC electricity into alternating current (AC) electricity that can be used in your home or fed back into the grid.

Question 2

What is net metering and how does it benefit me?

Accepted Answer

Net metering allows you to sell excess electricity generated by your solar panels back to the grid. During sunny days when your panels produce more electricity than you use, the excess is fed into the grid and you receive credits. These credits can offset your electricity consumption during nights or cloudy days, potentially reducing your electricity bill to zero.

Question 3

How much electricity can solar panels generate?

Accepted Answer

A typical 1kW solar system in India generates approximately 4-5 units (kWh) of electricity per day, depending on your location and weather conditions. For example, a 5kW system can generate 20-25 units daily, which is sufficient for most average Indian households.

Question 4

What happens during cloudy days or at night?

Accepted Answer

Solar panels generate reduced electricity during cloudy days (about 20-40% of normal output) and no electricity at night. However, with net metering, you can use grid electricity and offset it with credits earned during sunny days. Alternatively, you can install battery backup systems for energy storage.

Question 5

How long do solar panels last?

Accepted Answer

High-quality solar panels typically last 25-30 years with proper maintenance. Most manufacturers provide 20-25 year performance warranties, guaranteeing at least 80% efficiency after 25 years. The inverter may need replacement after 10-15 years.

Question 6

How much does a solar system cost in India?

Accepted Answer

The cost of a solar system in India ranges from ₹45,000 to ₹65,000 per kW before subsidies. For a typical 5kW residential system, the cost would be around ₹2.25-3.25 lakhs before subsidies. After central and state subsidies, the effective cost can reduce to ₹1.5-2.5 lakhs.

Question 7

What government subsidies are available?

Accepted Answer

The central government provides a subsidy of ₹18,000 per kW (maximum ₹54,000) for residential systems up to 3kW. Many states offer additional subsidies. Gujarat, Rajasthan, and Punjab offer state subsidies ranging from 20-30% of the system cost. Check with your local electricity board for specific state incentives.

Question 8

How much can I save on electricity bills?

Accepted Answer

You can save 70-90% on your electricity bills with a properly sized solar system. A 5kW system generating 20-25 units daily can offset a monthly bill of ₹6,000-8,000. With net metering, excess generation can make your bill zero or even result in credits from the electricity board.

Question 9

What is the payback period for solar investment?

Accepted Answer

The payback period for solar systems in India is typically 3-6 years, depending on your electricity consumption, local tariffs, and available subsidies. After this period, you enjoy free electricity for the remaining 20+ years of the system's life, resulting in significant long-term savings.

Question 10

Are there any tax benefits for solar installation?

Accepted Answer

Yes, under Section 80C of the Income Tax Act, you can claim deductions for solar system installations. Additionally, commercial establishments can avail accelerated depreciation benefits of up to 80% in the first year under Section 32 of the Income Tax Act.

Question 11

How long does installation take?

Accepted Answer

A typical residential solar installation takes 1-3 days depending on system size and roof complexity. This includes mounting structure installation, panel placement, electrical connections, and inverter setup. Commercial installations may take 1-2 weeks depending on the scale.

Question 12

What type of roof is suitable for solar panels?

Accepted Answer

Most roof types are suitable including concrete slabs, metal sheets, tile roofs, and even thatched roofs with proper mounting. The roof should have minimal shading, good structural integrity, and preferably face south for optimal performance. A minimum area of 100 sq ft is needed per kW of solar capacity.

Question 13

Do I need planning permission for solar panels?

Accepted Answer

In most cases, residential solar installations under 10kW don't require special planning permissions. However, you need approval from your local electricity board for net metering connection. Commercial installations may require additional clearances from local authorities.

Question 14

Will solar panels damage my roof?

Accepted Answer

No, when installed by professionals, solar panels protect your roof from weather elements. We use non-penetrating mounting systems where possible and waterproof all penetrations. Our structural engineers ensure the mounting system distributes weight evenly without compromising roof integrity.

Question 15

What happens during monsoon or extreme weather?

Accepted Answer

Solar panels are designed to withstand extreme weather including heavy rains, hail, and high winds up to 200 km/h. During monsoons, panels continue to generate electricity though at reduced capacity. Our mounting systems are engineered to meet Indian weather standards and building codes.

Question 16

How much maintenance do solar panels require?

Accepted Answer

Solar panels require minimal maintenance. Basic cleaning every 2-3 months and annual professional inspection are sufficient. In dusty areas, more frequent cleaning may be needed. Most maintenance involves cleaning panels and checking electrical connections.

Question 17

How do I clean solar panels?

Accepted Answer

Use clean water and a soft brush or cloth to clean panels early morning or late evening when panels are cool. Avoid using harsh chemicals or high-pressure water. For rooftop installations, consider professional cleaning services for safety. Clean panels can improve efficiency by 15-20%.

Question 18

What warranty do you provide?

Accepted Answer

We provide 25-year performance warranty on solar panels (guaranteeing 80% output after 25 years), 10-year product warranty on panels, 5-10 year warranty on inverters, and 25-year warranty on mounting structures. We also provide 5-year comprehensive maintenance support.

Question 19

What if a panel gets damaged?

Accepted Answer

Individual panel damage doesn't affect the entire system significantly due to bypass diodes. Damaged panels can be easily replaced without shutting down the entire system. Our insurance options cover damage from natural calamities, and warranty covers manufacturing defects.

Question 20

How do I monitor system performance?

Accepted Answer

We provide mobile app-based monitoring systems that show real-time generation, consumption, and savings. You can track daily, monthly, and yearly performance. The system sends alerts for any issues, and our technical team provides remote support.

Question 21

What is net metering and how does it work?

Accepted Answer

Net metering is a billing mechanism where you can sell excess solar electricity to the grid and receive credits. A bi-directional meter records both electricity consumed from and fed back to the grid. You pay only for the net electricity consumed (consumption minus generation).

Question 22

Can I install battery backup with my solar system?

Accepted Answer

Yes, you can install battery backup for storing excess energy. Lithium-ion batteries are most efficient but more expensive. Lead-acid batteries are cheaper but have shorter life. Battery backup ensures power during outages and stores excess generation for nighttime use.

Question 23

What happens if I move to a new house?

Accepted Answer

Solar systems can increase property value by 10-15%. If moving, you can transfer the net metering agreement to new owners, or in some cases, relocate the system to your new property. The solar system becomes a valuable asset that enhances property marketability.

Question 24

What are the electrical safety requirements?

Accepted Answer

Solar installations must comply with Indian Electricity Rules and CEA guidelines. This includes proper earthing, surge protection devices, AC/DC disconnects, and circuit breakers. All electrical work should be done by licensed electricians following safety standards.

Question 25

Can I expand my solar system later?

Accepted Answer

Yes, solar systems are modular and can be expanded later. However, you may need additional approvals for increased capacity. The inverter capacity should accommodate the expansion, or you may need to upgrade it. Plan for future expansion during initial design.

Question 26

How much carbon footprint can I reduce?

Accepted Answer

A typical 5kW solar system prevents approximately 5-7 tons of CO2 emissions annually, equivalent to planting 50-70 trees every year. Over 25 years, this adds up to 125-175 tons of CO2 saved, making a significant contribution to environmental protection.

Question 27

Are solar panels recyclable?

Accepted Answer

Yes, solar panels are 95% recyclable. The aluminum frame, glass, and semiconductor materials can be recovered and reused. Though solar panel recycling infrastructure is developing in India, manufacturers are increasingly taking responsibility for end-of-life panel management.

Question 28

What happens to old solar panels?

Accepted Answer

After 25-30 years, solar panels still generate 70-80% of their original capacity and can be used for less critical applications. The materials can be recycled, with glass and aluminum having high recovery rates. Proper disposal prevents environmental contamination.

Question 29

Do solar panels contain toxic materials?

Accepted Answer

Modern crystalline silicon solar panels contain minimal toxic materials. The small amount of silver and aluminum used is non-hazardous. Thin-film panels may contain trace amounts of cadmium, but exposure risks are minimal during normal operation and proper disposal protocols exist.

Question 30

How does solar help India's energy independence?

Accepted Answer

Solar reduces dependence on fossil fuel imports, enhances energy security, and supports India's renewable energy targets. Every solar installation contributes to the national goal of 500GW renewable capacity by 2030, reducing coal dependency and improving air quality.

Question 31

What is the difference between on-grid and off-grid systems?

Accepted Answer

On-grid systems are connected to the electricity grid and use net metering to sell excess power. Off-grid systems are standalone with battery storage, suitable for remote areas without grid access. Hybrid systems combine both, offering grid connection with battery backup for outages.

Question 32

Can solar work during power cuts?

Accepted Answer

Standard on-grid systems shut down during power cuts for safety. To have power during outages, you need a hybrid system with battery backup or a grid-tie inverter with battery storage. This ensures continuous power supply even when the grid is down.

Question 33

How do I apply for net metering?

Accepted Answer

Apply to your local electricity distribution company (DISCOM) with technical specifications, site photos, and required documents. The process typically takes 30-45 days and includes technical feasibility study, agreement signing, and bi-directional meter installation.

Question 34

What if my electricity consumption increases?

Accepted Answer

If consumption increases beyond generation, you'll draw additional power from the grid and pay for net consumption. You can either reduce consumption through energy-efficient appliances or expand your solar system capacity to match increased demand.

Question 35

Can I use solar power at night?

Accepted Answer

Solar panels don't generate electricity at night. Without batteries, you'll use grid electricity at night and offset it with solar credits from daytime generation. With battery storage, you can use stored solar energy at night, achieving greater energy independence.

Frequently Asked Questions

Categories

Solar Basics

How do solar panels work?

What is net metering and how does it benefit me?

How much electricity can solar panels generate?

What happens during cloudy days or at night?

How long do solar panels last?

Still Have Questions?