Solar 101
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.
Is rooftop solar worth it, and how it works.
What solar costs in India and what you save.
India’s rooftop subsidy, explained and estimated.
How the grid cuts your bill to near zero.
How to pick a good installer and avoid fraud.
Panels, inverters and batteries — what to buy.
Keeping your system clean and generating.
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.
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.
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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