FAQs about Solar Panels

Solar panels, also known as photovoltaic (PV) panels, are devices that convert sunlight into electricity using semiconductor materials. They’re commonly used for homes, businesses, and even satellites.

Solar panels capture photons from sunlight, which then knock electrons loose from atoms in the panel's cells, generating a flow of electricity. This electricity is direct current (DC), which is converted to alternating current (AC) via an inverter for use in homes and businesses.

• Reduces electricity bills
• Environmentally friendly (lowers carbon footprint)
• Increases property value
• Offers energy independence
• Eligible for government incentives and tax credits in many countries

Yes, over time, solar panels can save homeowners thousands on energy bills. The average payback period is between 5 to 8 years depending on location, energy usage, and system cost.

Most solar panels come with a warranty of 25 years and can last up to 30–35 years with proper maintenance. Their efficiency may slightly degrade over time.

• Monocrystalline – High efficiency, long lifespan, more expensive
• Polycrystalline – Slightly less efficient but more affordable
• Thin-film – Lightweight and flexible, used in specific applications

Yes, with a properly sized system and battery backup (if desired), solar panels can power an entire home, including appliances, lights, and electronics.

Solar panels still generate electricity on cloudy days, though less efficiently. At night, they don’t produce power, so a battery system or grid connection is essential for uninterrupted supply.

The cost depends on system size, location, and brand. On average:

• India: ₹50,000 to ₹1,50,000 per kW
• USA: $15,000 to $25,000 for a 5 kW system before incentives

Yes. In India, the Ministry of New and Renewable Energy (MNRE) offers subsidies up to 40% for residential rooftop systems. Learn more from MNRE.
In the USA, the federal solar tax credit (ITC) allows you to deduct 30% of the system cost. More on Energy.gov.

Batteries aren’t mandatory, but they store excess solar energy for use during power cuts or at night. They are especially useful in off-grid systems or areas with unreliable power supply.

Minimal maintenance is needed. Regularly cleaning panels (2–4 times a year) and annual inspections are recommended to maintain optimal performance.

Grid-tied systems usually shut down during power outages for safety reasons unless they’re paired with a battery storage system or specialized inverter.

DIY kits are available, but professional installation is recommended to ensure safety, efficiency, and warranty compliance.

Yes. Homes with solar systems often have higher resale value and sell faster. They’re seen as energy-efficient and future-ready.