Published Mar 6, 2026 3 Min Read

 
 

A solar panel, also called a photovoltaic (PV) module, is a device that converts sunlight directly into electricity using semiconductor technology. Installing solar panels can lower your electricity bills by up to 90%, support environmental sustainability, and provide a reliable source of clean energy for more than 25 years.

 

How do solar panels work?

  • Light Absorption: Photovoltaic (PV) cells capture sunlight and absorb photons.
  • Current Generation: The absorbed energy generates an electric field, producing direct current (DC).
  • Inversion: A solar inverter converts DC into alternating current (AC) suitable for household use.
  • Utilisation: Electricity powers your appliances, with any surplus fed back to the grid through net metering.

Benefits of installing solar panels

  • Financial Freedom: Cut electricity bills by up to 90%.
  • Net Metering: Receive credits for surplus energy sent to the grid.
  • Tax Advantages: Businesses can claim accelerated depreciation on solar assets.

 

What are solar panels made of?

The main components of solar panels include:

  • Photovoltaic (PV) cells – usually made from silicon.
  • Protective glass covering.
  • Metal frame for durability.
  • Encapsulation materials to keep panels stable and weather-resistant.

 

Different types of solar panels: choosing the right one

Different types of solar panels cater to varying requirements:

  1. Monocrystalline: Offers the highest efficiency, ideal for limited roof space.
  2. Polycrystalline: More affordable, suitable for larger installations.
  3. Bifacial Panels: (Emerging trend) Captures sunlight on both front and rear surfaces for increased output.

Solar panel subsidy in India (2026 update)

Under the PM Surya Ghar Yojana, residential consumers can avail a subsidy of up to Rs. 78,000, significantly reducing the effective cost of a 3 kW solar system and making it more accessible for ordinary households.

 

Price range of solar panels

Costs vary based on type, capacity, and installation:

  • Monocrystalline panels: Higher initial cost but greater long-term savings.
  • Polycrystalline panels: Moderate cost, suitable for smaller setups.
  • Thin-film panels: Lower cost but less efficient.

 

Financing options for solar panels

Solar panel installation can be financed in several ways:

You can also check your pre-approved business loan offer to quickly fund solar projects.

 

Tips for the maintenance of solar panels

Proper maintenance keeps solar panels working efficiently:

  • Clean panels regularly to remove dust and debris.
  • Check wiring and connections for any damage.
  • Trim nearby trees to avoid shading.
  • Schedule professional inspections periodically.

Financing Your Solar System with Bajaj Finserv

Initial investment shouldn't be a hurdle. With Bajaj Finserv Personal Loans or Business Loans, you can install solar now and pay in easy EMIs that are often lower than your electricity savings.

 

Conclusion

Solar panels are a smart investment for lowering energy costs and supporting sustainability. Correct installation, financing, and maintenance maximise their benefits. Businesses can also fund solar panel projects through a secured business loan.

Frequently Asked Questions

How many solar panels will I need to run a house?

The number of solar panels required depends on factors like your home’s energy usage, location, and energy goals. For example, a medium-sized home consuming around 500-600 kWh per month may need 20-30 panels, depending on their efficiency and size. Consulting a professional can provide a more accurate calculation tailored to your needs.

How many ACs can run on a 3kW solar panel system?

A 3kW solar panel system can typically produce around 10-12 units of electricity per day. This output can power 2-3 standard 1.5-ton air conditioners for a few hours, depending on factors like energy efficiency, sunlight availability, and usage duration.

What are the disadvantages of solar panels?

While solar panels offer numerous benefits, they also have some drawbacks:

  • High initial installation cost: The upfront expense can be significant, although it is offset by long-term savings.
  • Dependence on sunlight: Solar panels require consistent sunlight to generate electricity effectively, which may be a limitation in areas with frequent cloudy weather.
  • Space requirements: Larger installations require adequate roof space or ground area.
  • Maintenance needs: Periodic cleaning and inspections are necessary to maintain efficiency.

Technological advancements and financing options are helping to address these challenges, making solar energy more accessible.

What maintenance is required for solar panels?

To maintain optimal performance, solar panels require:

  • Regular cleaning to remove dirt and debris.
  • Inspection for damage to ensure smooth operation.
  • Inverter checks to verify proper functionality.
  • Professional servicing for comprehensive system assessments.

Proper maintenance ensures that your solar panels continue to generate clean, efficient energy for years.

Does solar work on cloudy days?

Yes, solar panels still generate electricity during cloudy or overcast days, but the output is reduced due to lower sunlight intensity. Modern PV systems are designed to work efficiently even in diffused sunlight, ensuring partial power generation throughout the day.

What is net metering?

Net metering is a system that allows solar power users to feed surplus electricity back into the grid. The excess energy is credited to the user’s account, which can offset future electricity bills, effectively reducing overall energy costs.

Is net metering beneficial?

Yes, net metering helps households and businesses maximise the value of solar energy, lowering electricity bills, improving energy efficiency, and providing a financial incentive to generate clean power.

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