How much does a solar panel installation cost for a home in India?
Indicatively ₹65,000–85,000 for 1 kW, around ₹1.1–1.4 lakh for 2 kW and ₹1.6–2 lakh for 3 kW, turnkey and before subsidy. Per-kW cost falls as size rises because the fixed costs — structure design, wiring, paperwork, inspection — are much the same whatever the capacity. Under PM Surya Ghar a 3 kW system attracts up to ₹78,000 back, which changes the picture substantially. These are ranges, not quotes: your roof type, structure height and distance from the meter all move the number.
How much subsidy do I actually get under PM Surya Ghar?
The nationally published structure is ₹30,000 per kW for the first 2 kW and ₹18,000 for the third, capping at ₹78,000 for 3 kW and above. Some states add their own on top. It is paid into your bank account after installation and inspection — not deducted from the price up front. Rates are set by government order and change, so confirm the current position on pmsuryaghar.gov.in before you commit.
What size solar system does my home need?
Work backwards from your bill, not your roof. A household paying ₹1,500–2,500 a month usually lands around 2 kW; ₹2,500–4,000 around 3 kW; ₹4,000–6,500 around 5 kW. Then check the roof can take it — roughly 100 sq.ft of genuinely shadow-free area per kW. If the roof cannot, the roof wins.
Is 3 kW or 5 kW better value?
For most homes, 3 kW. The central subsidy caps at ₹78,000, which 3 kW reaches — so the extra 2 kW in a 5 kW system is entirely self-funded and lengthens the payback. 5 kW makes sense when consumption genuinely justifies it, such as heavy air-conditioning or an EV. It is not automatically the better buy, whatever the larger quote implies.
Do I need permission from my DISCOM?
Yes. A grid-connected rooftop system needs a net-metering application, technical feasibility approval, and a bi-directional meter installed by the DISCOM after inspection. This is not optional and it is not paperwork you can skip — the subsidy also depends on it. We file it as part of the job.
How long does the whole process take?
Installation on a home system is usually two to four days. What sets the overall timeline is the approvals — registration, technical feasibility, then inspection and meter installation — and those depend on your DISCOM's current workload. Anyone promising a fixed total date before the application is filed is guessing.
What maintenance does a home solar system need?
Panel cleaning every few weeks in dusty months, and an annual check of connections, earthing and inverter health. Generation drops quietly when panels are dirty or a string has failed, so monitoring matters more than most homeowners expect — a system can underperform for a year without anything visibly wrong.