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Solar 101

Learn rooftop solar, the honest way.

No jargon, no sales pitch. Just clear, India-specific guides that take you from “is it worth it?” to a system on your roof and a near-zero electricity bill.

In shortRooftop solar converts sunlight into electricity that powers your home, with any surplus exported to the grid through net metering (so the grid acts as a free battery). In India a home system costs about ₹55,000–75,000 per kW before the ₹78,000 PM Surya Ghar subsidy, generates roughly 4 units a day per kW, and typically pays back in 3–4 years.

Getting started

Is rooftop solar worth it, and how it works.

Costs & savings

What solar costs in India and what you save.

PM Surya Ghar subsidy

India’s rooftop subsidy, explained and estimated.

Net metering & bills

How the grid cuts your bill to near zero.

Choosing an installer

How to pick a good installer and avoid fraud.

Products 101

Panels, inverters and batteries — what to buy.

Maintenance & O&M

Keeping your system clean and generating.

Rooftop solar basics — common questions

How does rooftop solar work?

Solar panels on your roof convert sunlight into DC electricity; an inverter turns it into AC to run your home. Surplus daytime power is exported to the grid via net metering and drawn back at night, so you’re billed only on your net usage.

How much does home solar cost in India?

About ₹55,000–75,000 per kW installed before subsidy (indicative 2026). A typical 3 kW system is ~₹1.6–2.1 lakh, dropping to roughly ₹82,000–₹1.32 lakh after the ₹78,000 PM Surya Ghar subsidy.

Is rooftop solar worth it?

For most homes with a monthly bill above ₹2,000, yes — payback is typically 3–4 years, after which the power is effectively free for the panels’ ~25-year life. It’s a weaker case for very low bills or heavily shaded roofs.

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