Solar panel cost in Patna
The short answer
A 3 kW rooftop system in Patna costs about ₹1,74,000 installed and ₹96,000 after the ₹78,000 subsidy, generating roughly 354 units a month. Against Patna’s average tariff of ₹6.8/unit, that cuts about ₹2,407 off the bill monthly, with payback in roughly 3.3 years.
- electricity supplier
- NBPDCL / SBPDCL
- electricity supplier
- avg tariff ₹/unit
- ₹6.8
- avg tariff ₹/unit
- units per kW monthly
- 118
- units per kW monthly
Solar system prices in Patna (after subsidy)
Live pricing at the ₹58,000/kW benchmark with the PM Surya Ghar subsidy applied. Treat any quote far below this table with suspicion — and any quote far above it as a negotiation.
| System | Before subsidy | Subsidy | Net cost | Generation/mo | Saves/mo | Payback |
|---|---|---|---|---|---|---|
| 1 kW | ₹58,000 | −₹30,000 | ₹28,000 | 118 units | ₹802 | 3 yrs |
| 2 kW | ₹1,16,000 | −₹60,000 | ₹56,000 | 236 units | ₹1,605 | 3 yrs |
| 3 kW | ₹1,74,000 | −₹78,000 | ₹96,000 | 354 units | ₹2,407 | 3 yrs |
| 5 kW | ₹2,90,000 | −₹78,000 | ₹2,12,000 | 590 units | ₹4,012 | 4 yrs |
| 10 kW | ₹5,80,000 | −₹78,000 | ₹5,02,000 | 1180 units | ₹8,024 | 5 yrs |
Savings assume full offset of your consumption via NBPDCL / SBPDCL net metering at ₹6.8/unit.
The full 3 kW breakdown for Patna →Nearby in Bihar
Understand the numbers
Solar in Patna: your questions, answered straight
What does a 3 kW solar system cost in Patna?
Roughly ₹1,74,000 before subsidy at current rates. The PM Surya Ghar subsidy returns ₹78,000, taking the net to about ₹96,000. Quotes vary ±10–15% with panel brand, structure height and wiring runs — ask for the itemised difference.
How much subsidy can a Patna home claim?
The central subsidy: ₹30,000 per kW for the first 2 kW, capped at ₹78,000 for systems of 3 kW or more. It applies to residential systems installed through a national-portal-registered vendor, and reaches your bank account after NBPDCL / SBPDCL inspects and commissions the system.
How many units does 1 kW generate in Patna?
About 118 units a month — roughly 3.9 units a day — depending on season, orientation and shade.
How does net metering work with NBPDCL / SBPDCL?
Your installer files the net-metering application after you sign. NBPDCL / SBPDCL reviews feasibility, replaces your meter with a bidirectional one, and commissions the system. From then on, exported solar units offset the grid units you consume at night.
Is solar worth it in Patna?
At Patna’s average tariff of ₹6.8/unit and 118 units per kW monthly, homes with bills above ₹2,000–3,000 typically recover the investment in 3–5 years.