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Residential rooftop solar in India

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Questions from homeowners who are going solar or already have — sizing a system to a monthly bill, comparing quotes, choosing between on-grid, off-grid and hybrid, and what happens after the panels go up.

Answers come from people who have installed systems on their own roofs and from installers who do it for a living, with the city, tariff and DISCOM named, because the right answer in Pune is often wrong in Lucknow.

Questions this topic answers

  • Is 3kW enough for a 2BHK with a ₹2,500 monthly bill?
  • What does a 5kW on-grid system cost after subsidy in my state?
  • On-grid, off-grid or hybrid — which one for frequent power cuts?
  • How much roof space does each kilowatt need?

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